230 results on '"Kattge, J"'
Search Results
2. A reporting format for leaf-level gas exchange data and metadata
- Author
-
Ely, KS, Rogers, A, Agarwal, DA, Ainsworth, EA, Albert, LP, Ali, A, Anderson, J, Aspinwall, MJ, Bellasio, C, Bernacchi, C, Bonnage, S, Buckley, TN, Bunce, J, Burnett, AC, Busch, FA, Cavanagh, A, Cernusak, LA, Crystal-Ornelas, R, Damerow, J, Davidson, KJ, De Kauwe, MG, Dietze, MC, Domingues, TF, Dusenge, ME, Ellsworth, DS, Evans, JR, Gauthier, PPG, Gimenez, BO, Gordon, EP, Gough, CM, Halbritter, AH, Hanson, DT, Heskel, M, Hogan, JA, Hupp, JR, Jardine, K, Kattge, J, Keenan, T, Kromdijk, J, Kumarathunge, DP, Lamour, J, Leakey, ADB, LeBauer, DS, Li, Q, Lundgren, MR, McDowell, N, Meacham-Hensold, K, Medlyn, BE, Moore, DJP, Negrón-Juárez, R, Niinemets, Ü, Osborne, CP, Pivovaroff, AL, Poorter, H, Reed, SC, Ryu, Y, Sanz-Saez, A, Schmiege, SC, Serbin, SP, Sharkey, TD, Slot, M, Smith, NG, Sonawane, BV, South, PF, Souza, DC, Stinziano, JR, Stuart-Haëntjens, E, Taylor, SH, Tejera, MD, Uddling, J, Vandvik, V, Varadharajan, C, Walker, AP, Walker, BJ, Warren, JM, Way, DA, Wolfe, BT, Wu, J, Wullschleger, SD, Xu, C, Yan, Z, and Yang, D
- Subjects
Photosynthesis ,Carbon dioxide ,Irradiance ,Data reporting format ,Metadata ,Data standard ,Ecology ,Biological Sciences ,Information and Computing Sciences - Abstract
Leaf-level gas exchange data support the mechanistic understanding of plant fluxes of carbon and water. These fluxes inform our understanding of ecosystem function, are an important constraint on parameterization of terrestrial biosphere models, are necessary to understand the response of plants to global environmental change, and are integral to efforts to improve crop production. Collection of these data using gas analyzers can be both technically challenging and time consuming, and individual studies generally focus on a small range of species, restricted time periods, or limited geographic regions. The high value of these data is exemplified by the many publications that reuse and synthesize gas exchange data, however the lack of metadata and data reporting conventions make full and efficient use of these data difficult. Here we propose a reporting format for leaf-level gas exchange data and metadata to provide guidance to data contributors on how to store data in repositories to maximize their discoverability, facilitate their efficient reuse, and add value to individual datasets. For data users, the reporting format will better allow data repositories to optimize data search and extraction, and more readily integrate similar data into harmonized synthesis products. The reporting format specifies data table variable naming and unit conventions, as well as metadata characterizing experimental conditions and protocols. For common data types that were the focus of this initial version of the reporting format, i.e., survey measurements, dark respiration, carbon dioxide and light response curves, and parameters derived from those measurements, we took a further step of defining required additional data and metadata that would maximize the potential reuse of those data types. To aid data contributors and the development of data ingest tools by data repositories we provided a translation table comparing the outputs of common gas exchange instruments. Extensive consultation with data collectors, data users, instrument manufacturers, and data scientists was undertaken in order to ensure that the reporting format met community needs. The reporting format presented here is intended to form a foundation for future development that will incorporate additional data types and variables as gas exchange systems and measurement approaches advance in the future. The reporting format is published in the U.S. Department of Energy's ESS-DIVE data repository, with documentation and future development efforts being maintained in a version control system.
- Published
- 2021
3. Global plant trait relationships extend to the climatic extremes of the tundra biome.
- Author
-
Thomas, H, Bjorkman, A, Myers-Smith, I, Elmendorf, S, Kattge, J, Diaz, S, Vellend, M, Blok, D, Cornelissen, J, Forbes, B, Henry, G, Hollister, R, Normand, S, Prevéy, J, Rixen, C, Schaepman-Strub, G, Wilmking, M, Wipf, S, Cornwell, W, Beck, P, Georges, D, Goetz, S, Guay, K, Rüger, N, Soudzilovskaia, N, Spasojevic, Marko, Alatalo, J, Alexander, H, Anadon-Rosell, A, Angers-Blondin, S, Te Beest, M, Berner, L, Björk, R, Buchwal, A, Buras, A, Carbognani, M, Christie, K, Collier, L, Cooper, E, Elberling, B, Eskelinen, A, Frei, E, Grau, O, Grogan, P, Hallinger, M, Heijmans, M, Hermanutz, L, Hudson, J, Johnstone, J, Hülber, K, Iturrate-Garcia, M, Iversen, C, Jaroszynska, F, Kaarlejarvi, E, Kulonen, A, Lamarque, L, Lantz, T, Lévesque, E, Little, C, Michelsen, A, Milbau, A, Nabe-Nielsen, J, Nielsen, S, Ninot, J, Oberbauer, S, Olofsson, J, Onipchenko, V, Petraglia, A, Rumpf, S, Shetti, R, Speed, J, Suding, K, Tape, K, Tomaselli, M, Trant, A, Treier, U, Tremblay, M, Venn, S, Vowles, T, Weijers, S, Wookey, P, Zamin, T, Bahn, M, Blonder, Benjamin, van Bodegom, P, Bond-Lamberty, B, Campetella, G, Cerabolini, B, Chapin, F, Craine, J, Dainese, M, Green, W, Jansen, S, Kleyer, M, Manning, P, Niinemets, Ü, Onoda, Y, Ozinga, W, Peñuelas, J, and Poschlod, P
- Subjects
Climate ,Ecosystem ,Plant Development ,Plants ,Tundra - Abstract
The majority of variation in six traits critical to the growth, survival and reproduction of plant species is thought to be organised along just two dimensions, corresponding to strategies of plant size and resource acquisition. However, it is unknown whether global plant trait relationships extend to climatic extremes, and if these interspecific relationships are confounded by trait variation within species. We test whether trait relationships extend to the cold extremes of life on Earth using the largest database of tundra plant traits yet compiled. We show that tundra plants demonstrate remarkably similar resource economic traits, but not size traits, compared to global distributions, and exhibit the same two dimensions of trait variation. Three quarters of trait variation occurs among species, mirroring global estimates of interspecific trait variation. Plant trait relationships are thus generalizable to the edge of global trait-space, informing prediction of plant community change in a warming world.
- Published
- 2020
4. Traditional plant functional groups explain variation in economic but not size-related traits across the tundra biome.
- Author
-
Thomas, HJD, Myers-Smith, IH, Bjorkman, AD, Elmendorf, SC, Blok, D, Cornelissen, JHC, Forbes, BC, Hollister, RD, Normand, S, Prevéy, JS, Rixen, C, Schaepman-Strub, G, Wilmking, M, Wipf, S, Cornwell, WK, Kattge, J, Goetz, SJ, Guay, KC, Alatalo, JM, Anadon-Rosell, A, Angers-Blondin, S, Berner, LT, Björk, RG, Buchwal, A, Buras, A, Carbognani, M, Christie, K, Siegwart Collier, L, Cooper, EJ, Eskelinen, A, Frei, ER, Grau, O, Grogan, P, Hallinger, M, Heijmans, MMPD, Hermanutz, L, Hudson, JMG, Hülber, K, Iturrate-Garcia, M, Iversen, CM, Jaroszynska, F, Johnstone, JF, Kaarlejärvi, E, Kulonen, A, Lamarque, LJ, Lévesque, E, Little, CJ, Michelsen, A, Milbau, A, Nabe-Nielsen, J, Nielsen, SS, Ninot, JM, Oberbauer, SF, Olofsson, J, Onipchenko, VG, Petraglia, A, Rumpf, SB, Semenchuk, PR, Soudzilovskaia, NA, Spasojevic, MJ, Speed, JDM, Tape, KD, Te Beest, M, Tomaselli, M, Trant, A, Treier, UA, Venn, S, Vowles, T, Weijers, S, Zamin, T, Atkin, OK, Bahn, M, Blonder, B, Campetella, G, Cerabolini, BEL, Chapin Iii, FS, Dainese, M, de Vries, FT, Díaz, S, Green, W, Jackson, RB, Manning, P, Niinemets, Ü, Ozinga, WA, Peñuelas, J, Reich, PB, Schamp, B, Sheremetev, S, and van Bodegom, PM
- Subjects
cluster analysis ,community composition ,ecosystem function ,plant functional groups ,plant functional types ,plant traits ,tundra biome ,vegetation change ,Ecology ,Ecological Applications ,Physical Geography and Environmental Geoscience - Abstract
AimPlant functional groups are widely used in community ecology and earth system modelling to describe trait variation within and across plant communities. However, this approach rests on the assumption that functional groups explain a large proportion of trait variation among species. We test whether four commonly used plant functional groups represent variation in six ecologically important plant traits.LocationTundra biome.Time periodData collected between 1964 and 2016.Major taxa studied295 tundra vascular plant species.MethodsWe compiled a database of six plant traits (plant height, leaf area, specific leaf area, leaf dry matter content, leaf nitrogen, seed mass) for tundra species. We examined the variation in species-level trait expression explained by four traditional functional groups (evergreen shrubs, deciduous shrubs, graminoids, forbs), and whether variation explained was dependent upon the traits included in analysis. We further compared the explanatory power and species composition of functional groups to alternative classifications generated using post hoc clustering of species-level traits.ResultsTraditional functional groups explained significant differences in trait expression, particularly amongst traits associated with resource economics, which were consistent across sites and at the biome scale. However, functional groups explained 19% of overall trait variation and poorly represented differences in traits associated with plant size. Post hoc classification of species did not correspond well with traditional functional groups, and explained twice as much variation in species-level trait expression.Main conclusionsTraditional functional groups only coarsely represent variation in well-measured traits within tundra plant communities, and better explain resource economic traits than size-related traits. We recommend caution when using functional group approaches to predict tundra vegetation change, or ecosystem functions relating to plant size, such as albedo or carbon storage. We argue that alternative classifications or direct use of specific plant traits could provide new insights for ecological prediction and modelling.
- Published
- 2019
5. A plant growth form dataset for the New World
- Author
-
Engemann, K., Sandel, B., Boyle, B., Enquist, B. J., Jørgensen, P. M., Kattge, J., McGill, B. J., Morueta-Holme, N., Peet, R. K., Spencer, N. J., Violle, C., Wiser, S. K., and Svenning, J.-C.
- Published
- 2016
6. Is Australia weird? A cross-continental comparison of biological, geological and climatological features
- Author
-
Flores-Moreno, H., Dalrymple, R., Cornwell, W., Popovic, G., Nakagawa, S., Atkinson, J., Cooke, J., Laffan, S., Bonser, S., Schwanz, L., Crean, A., Eldridge, D., Garratt, M., Brooks, R., Vergés, A., Poore, A., Cohen, D., Clark, G., Gupta, A., Reich, P., Cornelissen, J., Craine, J., Hemmings, F., Kattge, J., Niinemets, Ü., Peñuelas, J., and Moles, A.
- Subjects
Ecology ,Ecology, Evolution, Behavior and Systematics - Abstract
Australia’s distinctive biogeography means that it is sometimes considered an ecologically unique continent with biological and abiotic features that are not comparable to those observed in the rest of the world. This leaves some researchers unclear as to whether findings from Australia apply to systems elsewhere (or vice-versa), which has consequences for the development of ecological theory and the application of ecological management principles. We analyzed 594,612 observations spanning 85 variables describing global climate, soil, geochemistry, plants, animals, and ecosystem function to test if Australia is broadly different to the other continents and compare how different each continent is from the global mean. We found significant differences between Australian and global means for none of 15 climate variables, only seven of 25 geochemistry variables, three of 16 soil variables, five of 12 plant trait variables, four of 11 animal variables, and one of five ecosystem function variables. Seven of these differences remained significant when we adjusted for multiple hypothesis testing: high soil pH, high soil concentrations of sodium and strontium, a high proportion of nitrogen-fixing plants, low plant leaf nitrogen concentration, low annual production rate to birth in mammals, and low marine productivity. Our analyses reveal numerous similarities between Australia and Africa and highlight dissimilarities between continents in the northern vs. southern hemispheres. Australia ranked the most distinctive continent for 26 variables, more often than Europe (15 variables), Africa (13 variables), Asia (12 variables each), South America (11 variables) or North America (8 variables). Australia was distinctive in a range of soil conditions and plant traits, and a few bird and mammal traits, tending to sit at a more extreme end of variation for some variables related to resource availability. However, combined analyses revealed that, overall, Australia is not significantly more different to the global mean than Africa, South America, or Europe. In conclusion, while Australia does have some unique and distinctive features, this is also true for each of the other continents, and the data do not support the idea that Australia is an overall outlier in its biotic or abiotic characteristics.
- Published
- 2023
- Full Text
- View/download PDF
7. Traits of dominant plant species drive normalized difference vegetation index in grasslands globally
- Author
-
Engel, T., Bruelheide, H., Hoss, D., Sabatini, F.M., Altman, J, Arfin‐Khan, M.A.S., Bergmeier, E., Černý, T., Chytrý, M., Dainese, M., Dolezal, J., Field, R., Fischer, F.M., Jansen, F., Jentsch, A., Karger, D.N., Kattge, J., Lenoir, J., Lens, F., Niinemets, Ü., Overbeck, G.E., Ozinga, W.A., Penuelas, J., Peyre, G., Phillips, O., Reich, P.B., Römermann, C., Sandel, B., Schmidt, M., Schrodt, F., Velez‐Martin, E., Violle, C., Pillar, V., Dengler, Huygens, Jandt, Loos, Thore Engel, Helge Bruelheide, Daniela Ho, Francesco M. Sabatini, Jan Altman, Mohammed A. S. Arfin‐Khan, Erwin Bergmeier, Tomáš Černý, Milan Chytrý, Matteo Dainese, Jürgen Dengler, Jiri Dolezal, Richard Field, Felícia M. Fischer, Dries Huygen, Ute Jandt, Florian Jansen, Anke Jentsch, Dirk N. Karger, Jens Kattge, Jonathan Lenoir, Frederic Len, Jaqueline Loo, Ülo Niinemet, Gerhard E. Overbeck, Wim A. Ozinga, Josep Penuela, Gwendolyn Peyre, Oliver Phillip, Peter B. Reich, Christine Römermann, Brody Sandel, Marco Schmidt, Franziska Schrodt, Eduardo Velez‐Martin, Cyrille Violle, and Valério Pillar
- Subjects
biodiversity–ecosystem functioning ,Global and Planetary Change ,Vegetation ,Ecology ,sPlot ,Functional Diversity ,Bos- en Landschapsecologie ,biodiversity–ecosystem functioning, biodiversity, community-weighted mean, ecosystem, functioning, functional diversity, sPlot, traits, vegetation ,Biodiversity ,functional diversity ,Traits ,traits ,Biodiversity–Ecosystem Functioning ,vegetation ,ecosystem functioning ,Community-Weighted Mean ,community-weighted mean ,Forest and Landscape Ecology ,Vegetatie, Bos- en Landschapsecologie ,Vegetation, Forest and Landscape Ecology ,Vegetatie ,Ecology, Evolution, Behavior and Systematics ,Ecosystem Functioning ,biodiversity - Abstract
Aim: Theoretical, experimental and observational studies have shown that biodiversity–ecosystem functioning (BEF) relationships are influenced by functional community structure through two mutually non-exclusive mechanisms: (1) the dominance effect (which relates to the traits of the dominant species); and (2) the niche partitioning effect [which relates to functional diversity (FD)]. Although both mechanisms have been studied in plant communities and experiments at small spatial extents, it remains unclear whether evidence from small-extent case studies translates into a generalizable macroecological pattern. Here, we evaluate dominance and niche partitioning effects simultaneously in grassland systems world-wide.Location: Two thousand nine hundred and forty-one grassland plots globally.Time period: 2000–2014.Major taxa studied: Vascular plants.Methods: We obtained plot-based data on functional community structure from the global vegetation plot database “sPlot”, which combines species composition with plant trait data from the “TRY” database. We used data on the community-weighted mean (CWM) and FD for 18 ecologically relevant plant traits. As an indicator of primary productivity, we extracted the satellite-derived normalized difference vegetation index (NDVI) from MODIS. Using generalized additive models and deviation partitioning, we estimated the contributions of trait CWM and FD to the variation in annual maximum NDVI, while controlling for climatic variables and spatial structure.Results: Grassland communities dominated by relatively tall species with acquisitive traits had higher NDVI values, suggesting the prevalence of dominance effects for BEF relationships. We found no support for niche partitioning for the functional traits analysed, because NDVI remained unaffected by FD. Most of the predictive power of traits was shared by climatic predictors and spatial coordinates. This highlights the importance of community assembly processes for BEF relationships in natural communities.Main conclusions: Our analysis provides empirical evidence that plant functional community structure and global patterns in primary productivity are linked through the resource economics and size traits of the dominant species. This is an important test of the hypotheses underlying BEF relationships at the global scale.
- Published
- 2023
8. Functional rarity of plants in German hay meadows - Patterns on the species level and mismatches with community species richness
- Author
-
Walther, G., Jandt, U., Kattge, J., and Römermann, C.
- Published
- 2022
9. Traits to stay, traits to move: a review of functional traits to assess sensitivity and adaptive capacity of temperate and boreal trees to climate change
- Author
-
Aubin, I., Munson, A.D., Cardou, F., Burton, P.J., Isabel, N., Pedlar, J.H., Paquette, A., Taylor, A.R., Delagrange, S., Kebli, H., Messier, C., Shipley, B., Valladares, F., Kattge, J., Boisvert-Marsh, L., and McKenney, D.
- Subjects
Multifactorial traits -- Analysis ,Climate change -- Analysis ,Taiga -- Environmental aspects ,Environmental issues - Abstract
The integration of functional traits into vulnerability assessments is a promising approach to quantitatively capture differences in species sensitivity and adaptive capacity to climate change, allowing the refinement of tree species distribution models. In response to a clear need to identify traits that are responsive to climate change and applicable in a management context, we review the state of knowledge of the main mechanisms, and their associated traits, that underpin the ability of boreal and temperate tree species to persist and (or) shift their distribution in a changing climate. We aimed to determine whether current knowledge is sufficiently mature and available to be used effectively in vulnerability assessments. Marshalling recent conceptual advances and assessing data availability, our ultimate objective is to guide modellers and practitioners in finding and selecting sets of traits that can be used to capture differences in species' ability to persist and migrate. While the physiological mechanisms that determine sensitivity to climate change are relatively well understood (e.g., drought-induced cavitation), many associated traits have not been systematically documented for North American trees and differences in methodology preclude their widespread integration into vulnerability assessments (e.g., xylem recovery capacity). In contrast, traits traditionally associated with the ability to migrate and withstand fire are generally well documented, but new key traits are emerging in the context of climate change that have not been as well characterized (e.g., age of optimum seed production). More generally, lack of knowledge surrounding the extent and patterns in intraspecific trait variation, as well as co-variation and interaction among traits, limit our ability to use this approach to assess tree adaptive capacity. We conclude by outlining research needs and potential strategies for the development of trait-based knowledge applicable in large-scale modelling efforts, sketching out important aspects of trait data organization that should be part of a coordinated effort by the forest science community. Key words: vulnerability assessment, drought tolerance, fire tolerance, migration ability, intraspecific variation in trait, species persistence. L'utilisation des traits fonctionnels dans l'evaluation de la vulnerabilite est une approche prometteuse pour integrer de maniere quantifiable les differences de sensibilite des especes et leur capacite d'adaptation aux changements climatiques, ameliorant ainsi les modeles de repartition des arbres. Afin d'identifier dans un contexte d'amenagement les traits cles qui sont affectes par les changements climatiques, nous examinons l'etat des connaissances sur les principaux mecanismes - ainsi que leurs traits associes--qui regissent la capacite des arbres des forets boreales et temperees a persister ou a migrer. Nous avons tente de determiner si les connaissances actuelles sont suffisamment matures et disponibles pour etre utilisees efficacement dans le contexte des evaluations de vulnerabilite. En synthetisant les avancees conceptuelles les plus recentes et en evaluant la disponibilite des donnees, nous avons comme objectif principal de guider les modelisateurs et autres intervenants dans la selection de traits fonctionnels pouvant servir a caracteriser les differences dans la capacite des especes a persister et a migrer face a un climat en changement. Par exemple, malgre que l'on comprenne assez bien les mecanismes physiologiques qui determinent la sensibilite aux changements climatiques (ex., cavitation induite par la secheresse), un grand nombre de traits associes a ces mecanismes n'ont pas ete systematiquement documentes pour les arbres d'Amerique du Nord. Nous constatons egalement des differences dans les methodologies utilisees pour mesurer ces traits (ex., capacite de retablissement des xylemes), ce qui nuit a l'integration des traits dans l'evaluation de la vulnerabilite. Pour leur part, les traits traditionnellement associes a la capacite de migrer et de resister au feu sont generalement bien documentes; cependant, de nouveaux traits cles emergeant dans le contexte des changements climatiques demeurent peu documentes (ex., l'age de la production optimale de graines). De facon generale, le manque de connaissance entourant la variabilite intraspecifique des traits, ainsi que sur la covariation et l'interaction entre traits, est limitant dans nos evaluations de la capacite adaptative des arbres. Nous concluons en soulignant des besoins precis en matiere de recherche et en identifiant certaines avenues possibles pour le developpement des connaissances liees aux traits applicables dans des projets de modelisation a grande echelle. Nous soulignons finalement l'importance de certains aspects de la gestion de donnees de traits qui devraient faire partie de tout effort coordonne de documentation par la communaute scientifique du milieu forestier. Mots-cles : evaluation de la vulnerabilite, tolerance a la secheresse, tolerance au feu, capacite de migration, variabilite intraspecifique des traits, persistance de l'espece., 1. Introduction Recent years have seen a marked increase in efforts to assess potential effects of climate change on the distribution and abundance of forest plant species (Thuiller et al. [...]
- Published
- 2016
- Full Text
- View/download PDF
10. Traditional plant functional groups explain variation in economic but not size-related traits across the tundra biome
- Author
-
Thomas, H.J.D., Myers-Smith, I.H., Bjorkman, A.D., Elmendorf, S.C., Blok, D., Cornelissen, J.H.C., Forbes, B.C., Hollister, R.D., Normand, S., Prevéy, J.S., Rixen, C., Schaepman-Strub, G., Wilmking, M., Wipf, S., Cornwell, W.K., Kattge, J., Goetz, S.J., Guay, K.C., Alatalo, J.M., Anadon-Rosell, A., Angers-Blondin, S., Berner, L.T., Björk, R.G., Buchwal, A., Buras, A., Carbognani, M., Christie, K., Siegwart Collier, L., Cooper, E.J., Eskelinen, A., Frei, E.R., Grau, O., Grogan, P., Hallinger, M., Heijmans, M.M.P.D., Hermanutz, L., Hudson, J.M.G., Hülber, K., Iturrate-Garcia, M., Iversen, C.M., Jaroszynska, F., Johnstone, J.F., Kaarlejärvi, E., Kulonen, A., Lamarque, L.J., Lévesque, E., Little, C.J., Michelsen, A., Milbau, A., Nabe-Nielsen, J., Nielsen, S.S., Ninot, J.M., Oberbauer, S.F., Olofsson, J., Onipchenko, V.G., Petraglia, A., Rumpf, S.B., Semenchuk, P.R., Soudzilovskaia, N.A., Spasojevic, M.J., Speed, J.D.M., Tape, K.D., Beest, M. te, Tomaselli, M., Trant, A., Treier, U.A., Venn, S., Vowles, T., Weijers, S., Zamin, T., Atkin, O.K., Bahn, M., Blonder, B., Campetella, G., Cerabolini, B.E.L., Chapin III, F.S., Dainese, M., Vries, F.T. de, Díaz, S., Green, W., Jackson, R.B., Manning, P., Niinemets, Ü, Ozinga, W.A., Penuelas, J., Reich, P.B., Schamp, B., Sheremetev, S., Bodegom, P.M. van, Systems Ecology, Spatial Ecology and Global Change, Environmental Sciences, External Funding, Research Centre for Ecological Change, and van Bodegom, PM
- Subjects
Plant functional types ,Evolution ,NUTRIENT ,TERM ,plant functional groups ,Physical Geography and Environmental Geoscience ,CARBON ,vegetation change ,Cluster analysis ,Behavior and Systematics ,ecosystem function ,VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Plantegeografi: 496 ,Community composition ,Plant functional groups ,community composition ,ARCTIC TUNDRA ,Ekologi ,Plant traits ,Global and Planetary Change ,CLIMATE-CHANGE ,Ecology ,LEAF TRAITS ,Botany ,food and beverages ,Botanik ,VDP::Mathematics and natural science: 400::Zoology and botany: 480::Plant geography: 496 ,plant functional types ,Research Papers ,Tundra biome ,cluster analysis ,plant traits ,tundra biome ,Ecology, Evolution, Behavior and Systematics ,Ecological Applications ,1181 Ecology, evolutionary biology ,Vegetation change ,Ecosystem function ,VEGETATION ,LITTER DECOMPOSITION RATES ,RESPONSES ,Research Paper - Abstract
Aim : Plant functional groups are widely used in community ecology and earth system modelling to describe trait variation within and across plant communities. However, this approach rests on the assumption that functional groups explain a large propor ‐ tion of trait variation among species. We test whether four commonly used plant functional groups represent variation in six ecologically important plant traits. Location : Tundra biome. Time period : Data collected between 1964 and 2016. Major taxa studied : 295 tundra vascular plant species. Methods : We compiled a database of six plant traits (plant height, leaf area, specific leaf area, leaf dry matter content, leaf nitrogen, seed mass) for tundra species. We exam ‐ ined the variation in species‐level trait expression explained by four traditional func ‐ tional groups (evergreen shrubs, deciduous shrubs, graminoids, forbs), and whether variation explained was dependent upon the traits included in analysis. We further compared the explanatory power and species composition of functional groups to al ‐ ternative classifications generated using post hoc clustering of species‐level traits. Results : Traditional functional groups explained significant differences in trait expres ‐ sion, particularly amongst traits associated with resource economics, which were con ‐ sistent across sites and at the biome scale. However, functional groups explained 19% of overall trait variation and poorly represented differences in traits associated with plant size. Post hoc classification of species did not correspond well with traditional functional groups, and explained twice as much variation in species‐level trait expression. Main conclusions : Traditional functional groups only coarsely represent variation in well‐measured traits within tundra plant communities, and better explain resource economic traits than size‐related traits. We recommend caution when using func ‐ tional group approaches to predict tundra vegetation change, or ecosystem func ‐ tions relating to plant size, such as albedo or carbon storage. We argue that alternative classifications or direct use of specific plant traits could provide new insights for ecological prediction and modelling. © 2018 The Authors Global Ecology and Biogeography Published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution License.
- Published
- 2021
11. Will the tropical land biosphere dominate the climate–carbon cycle feedback during the twenty-first century?
- Author
-
Raddatz, T. J., Reick, C. H., Knorr, W., Kattge, J., Roeckner, E., Schnur, R., Schnitzler, K.-G., Wetzel, P., and Jungclaus, J.
- Published
- 2007
- Full Text
- View/download PDF
12. TRY plant trait database - enhanced coverage and open access
- Author
-
Kattge, J, Bönisch, G, Díaz, S, Lavorel, S, Prentice, IC, Leadley, P, Tautenhahn, A, Werner, GDA, Aakala, T, Abedi, M, Acosta, ATR, Adamidis, GC, K, Adamson., Aiba, M, Albert, CH, Alcántara, JM, Alcázar, C, Aleixo, I, Ali, H, Amiaud, B, Ammer, C, Amoroso, MM, Anand, M, Anderson, C, Anten, N, Antos, J, Apgaua, DMG, Ashman, TL, Asmara, DH, Asner, GP, Aspinwall, M, Atkin, O, Aubin, I, Baastrup-Spohr, L, Bahalkeh, K, Bahn, M, Baker, T, Baker, WJ, Bakker, JP, Baldocchi, D, Baltzer, J, Banerjee, A, Baranger, A, Barlow, J, Barneche, DR, Baruch, Z, Bastianelli, D, Battles, J, Salguero-Gomez, R, and Terrestrial Ecology (TE)
- Subjects
Access to Information ,Ecology ,Plan_S-Compliant-TA ,international ,food and beverages ,Biodiversity ,Plants ,Ecosystem - Abstract
Plant traits-the morphological, anatomical, physiological, biochemical and phenological characteristics of plants-determine how plants respond to environmental factors, affect other trophic levels, and influence ecosystem properties and their benefits and detriments to people. Plant trait data thus represent the basis for a vast area of research spanning from evolutionary biology, community and functional ecology, to biodiversity conservation, ecosystem and landscape management, restoration, biogeography and earth system modelling. Since its foundation in 2007, the TRY database of plant traits has grown continuously. It now provides unprecedented data coverage under an open access data policy and is the main plant trait database used by the research community worldwide. Increasingly, the TRY database also supports new frontiers of trait-based plant research, including the identification of data gaps and the subsequent mobilization or measurement of new data. To support this development, in this article we evaluate the extent of the trait data compiled in TRY and analyse emerging patterns of data coverage and representativeness. Best species coverage is achieved for categorical traits-almost complete coverage for 'plant growth form'. However, most traits relevant for ecology and vegetation modelling are characterized by continuous intraspecific variation and trait-environmental relationships. These traits have to be measured on individual plants in their respective environment. Despite unprecedented data coverage, we observe a humbling lack of completeness and representativeness of these continuous traits in many aspects. We, therefore, conclude that reducing data gaps and biases in the TRY database remains a key challenge and requires a coordinated approach to data mobilization and trait measurements. This can only be achieved in collaboration with other initiatives.
- Published
- 2020
13. Global plant trait relationships extend to the climatic extremes of the tundra biome
- Author
-
Thomas, HJD, Bjorkman, AD, Myers-Smith, IH, Elmendorf, SC, Kattge, J, Diaz, S, Vellend, M, Blok, D, Cornelissen, JHC, Forbes, BC, Henry, GHR, Hollister, RD, Normand, S, Prevéy, JS, Rixen, C, Schaepman-Strub, G, Wilmking, M, Wipf, S, Cornwell, WK, Beck, PSA, Georges, D, Goetz, SJ, Guay, KC, Rüger, N, Soudzilovskaia, NA, Spasojevic, MJ, Alatalo, JM, Alexander, HD, Anadon-Rosell, A, Angers-Blondin, S, Te Beest, M, Berner, LT, Björk, RG, Buchwal, A, Buras, A, Carbognani, M, Christie, KS, Collier, LS, Cooper, EJ, Elberling, B, Eskelinen, A, Frei, ER, Grau, O, Grogan, P, Hallinger, M, Heijmans, MMPD, Hermanutz, L, Hudson, JMG, Johnstone, JF, Hülber, K, Iturrate-Garcia, M, Iversen, CM, Jaroszynska, F, Kaarlejarvi, E, Kulonen, A, Lamarque, LJ, Lantz, TC, Lévesque, E, Little, CJ, Michelsen, A, Milbau, A, Nabe-Nielsen, J, Nielsen, SS, Ninot, JM, Oberbauer, SF, Olofsson, J, Onipchenko, VG, Petraglia, A, Rumpf, SB, Shetti, R, Speed, JDM, Suding, KN, Tape, KD, Tomaselli, M, Trant, AJ, Treier, UA, Tremblay, M, Venn, SE, Vowles, T, Weijers, S, Wookey, PA, Zamin, TJ, Bahn, M, Blonder, B, van Bodegom, PM, Bond-Lamberty, B, Campetella, G, Cerabolini, BEL, Chapin, FS, Craine, JM, Dainese, M, Green, WA, Jansen, S, Kleyer, M, Manning, P, Niinemets, Ü, Onoda, Y, Ozinga, WA, Peñuelas, J, and Poschlod, P
- Subjects
Climate ,food and beverages ,Plant Development ,Plants ,Tundra ,Ecosystem - Abstract
The majority of variation in six traits critical to the growth, survival and reproduction of plant species is thought to be organised along just two dimensions, corresponding to strategies of plant size and resource acquisition. However, it is unknown whether global plant trait relationships extend to climatic extremes, and if these interspecific relationships are confounded by trait variation within species. We test whether trait relationships extend to the cold extremes of life on Earth using the largest database of tundra plant traits yet compiled. We show that tundra plants demonstrate remarkably similar resource economic traits, but not size traits, compared to global distributions, and exhibit the same two dimensions of trait variation. Three quarters of trait variation occurs among species, mirroring global estimates of interspecific trait variation. Plant trait relationships are thus generalizable to the edge of global trait-space, informing prediction of plant community change in a warming world.
- Published
- 2020
14. TRY plant trait database – enhanced coverage and open access
- Author
-
Kattge, J., Bönisch, G., Díaz, S., Lavorel, S., Prentice, I., Leadley, P., Tautenhahn, S., Werner, G., and Günther, A.
- Subjects
data coverage, data integration, data representativeness, functional diversity, plant traits, TRY plant trait database ,ddc:570 ,food and beverages - Abstract
Plant traits—the morphological, anatomical, physiological, biochemical and phenological characteristics of plants—determine how plants respond to environmental factors, affect other trophic levels, and influence ecosystem properties and their benefits and detriments to people. Plant trait data thus represent the basis for a vast area of research spanning from evolutionary biology, community and functional ecology, to biodiversity conservation, ecosystem and landscape management, restoration, biogeography and earth system modelling. Since its foundation in 2007, the TRY database of plant traits has grown continuously. It now provides unprecedented data coverage under an open access data policy and is the main plant trait database used by the research community worldwide. Increasingly, the TRY database also supports new frontiers of trait-based plant research, including the identification of data gaps and the subsequent mobilization or measurement of new data. To support this development, in this article we evaluate the extent of the trait data compiled in TRY and analyse emerging patterns of data coverage and representativeness. Best species coverage is achieved for categorical traits—almost complete coverage for ‘plant growth form’. However, most traits relevant for ecology and vegetation modelling are characterized by continuous intraspecific variation and trait–environmental relationships. These traits have to be measured on individual plants in their respective environment. Despite unprecedented data coverage, we observe a humbling lack of completeness and representativeness of these continuous traits in many aspects. We, therefore, conclude that reducing data gaps and biases in the TRY database remains a key challenge and requires a coordinated approach to data mobilization and trait measurements. This can only be achieved in collaboration with other initiatives. published
- Published
- 2020
15. A Methodology to Derive Global Maps of Leaf Traits Using Remote Sensing and Climate Data
- Author
-
Moreno-Martinez, A., Camps-Valls, G., Kattge, J., Robinson, N., Reichstein, M., Bodegom, P.M. van, Kramer, K., Cornelissen, J., Hans, C., Reich, P., Bahn, M., Niinemets, U., Penuelas, J., Craine, J.M., Cerabolini, B.E.L., Minden, V., Laughlin, D.C., Sack, L., Allred, B., Baraloto, C., Byun, C., Soudzilovskaia, N.A., Running, S.W., Biology, and Systems Ecology
- Subjects
0106 biological sciences ,FOS: Computer and information sciences ,010504 meteorology & atmospheric sciences ,Specific leaf area ,Climate ,Bos- en Landschapsecologie ,Soil Science ,FOS: Physical sciences ,Applied Physics (physics.app-ph) ,010603 evolutionary biology ,01 natural sciences ,Statistics - Applications ,Goodness of fit ,Abundance (ecology) ,Machine learning ,Forest and Landscape Ecology ,Applications (stat.AP) ,Computers in Earth Sciences ,Plant ecology ,Vegetatie ,0105 earth and related environmental sciences ,Remote sensing ,Mathematics ,2. Zero hunger ,Plant traits ,Vegetation ,Data stream mining ,Landsat ,MODIS ,Random forests ,Geology ,Global Map ,Regression analysis ,Physics - Applied Physics ,15. Life on land ,PE&RC ,Random forest ,Trait ,Vegetatie, Bos- en Landschapsecologie ,Vegetation, Forest and Landscape Ecology - Abstract
This paper introduces a modular processing chain to derive global high-resolution maps of leaf traits. In particular, we present global maps at 500 m resolution of specific leaf area, leaf dry matter content, leaf nitrogen and phosphorus content per dry mass, and leaf nitrogen/phosphorus ratio. The processing chain exploits machine learning techniques along with optical remote sensing data (MODIS/Landsat) and climate data for gap filling and up-scaling of in-situ measured leaf traits. The chain first uses random forests regression with surrogates to fill gaps in the database (> 45% of missing entries) and maximizes the global representativeness of the trait dataset. Plant species are then aggregated to Plant Functional Types (PFTs). Next, the spatial abundance of PFTs at MODIS resolution (500 m) is calculated using Landsat data (30 m). Based on these PFT abundances, representative trait values are calculated for MODIS pixels with nearby trait data. Finally, different regression algorithms are applied to globally predict trait estimates from these MODIS pixels using remote sensing and climate data. The methods were compared in terms of precision, robustness and efficiency. The best model (random forests regression) shows good precision (normalized RMSE≤ 20%) and goodness of fit (averaged Pearson's correlation R = 0.78) in any considered trait. Along with the estimated global maps of leaf traits, we provide associated uncertainty estimates derived from the regression models. The process chain is modular, and can easily accommodate new traits, data streams (traits databases and remote sensing data), and methods. The machine learning techniques applied allow attribution of information gain to data input and thus provide the opportunity to understand trait-environment relationships at the plant and ecosystem scales. The new data products – the gap-filled trait matrix, a global map of PFT abundance per MODIS gridcells and the high-resolution global leaf trait maps – are complementary to existing large-scale observations of the land surface and we therefore anticipate substantial contributions to advances in quantifying, understanding and prediction of the Earth system.
- Published
- 2020
- Full Text
- View/download PDF
16. TRY plant trait database - enhanced coverage and open access
- Author
-
Kattge, J., Bönisch, G., Díaz, S., Lavorel, S., Prentice, I.C., Leadley, P., Tautenhahn, S., Werner, G.D.A., Aakala, T., Abedi, M., and Soudzilovskaia, N.A.
- Subjects
Morphology ,Data Integration ,Conservación de la Diversidad Biológica ,Landscape Conservation ,Factores Ambientales ,Cobertura de Datos ,Base de Datos ,TRY Base de Datos de Características de las Plantas ,Ecosistemas ,Ecosystems ,Databases ,Morfología ,Physiological Functions ,Representatividad de los Datos ,Conservación de Paisaje ,Compuestos Bioquímicos ,Vegetation ,Biochemical Compounds ,Functional Diversity ,food and beverages ,Vegetación ,TRY Plant Trait Database ,Cubierta Vegetal ,Plant Traits ,Plant Cover ,Fenología ,Phenology ,Data Representativeness ,Data Coverage ,Características de las Plantas ,Integración de Datos ,Biodiversity Conservation ,Funciones Fisiológicas ,Diversidad Funcional ,biological ,Environmental Factors - Abstract
Plant traits—the morphological, anatomical, physiological, biochemical and phenological characteristics of plants—determine how plants respond to environmental factors, affect other trophic levels, and influence ecosystem properties and their benefits and detriments to people. Plant trait data thus represent the basis for a vast area of research spanning from evolutionary biology, community and functional ecology, to biodiversity conservation, ecosystem and landscape management, restoration, biogeography and earth system modelling. Since its foundation in 2007, the TRY database of plant traits has grown continuously. It now provides unprecedented data coverage under an open access data policy and is the main plant trait database used by the research community worldwide. Increasingly, the TRY database also supports new frontiers of trait‐based plant research, including the identification of data gaps and the subsequent mobilization or measurement of new data. To support this development, in this article we evaluate the extent of the trait data compiled in TRY and analyse emerging patterns of data coverage and representativeness. Best species coverage is achieved for categorical traits—almost complete coverage for ‘plant growth form’. However, most traits relevant for ecology and vegetation modelling are characterized by continuous intraspecific variation and trait–environmental relationships. These traits have to be measured on individual plants in their respective environment. Despite unprecedented data coverage, we observe a humbling lack of completeness and representativeness of these continuous traits in many aspects. We, therefore, conclude that reducing data gaps and biases in the TRY database remains a key challenge and requires a coordinated approach to data mobilization and trait measurements. This can only be achieved in collaboration with other initiatives. EEA Santa Cruz Fil: Kattge, Jens. Max Planck Institute for Biogeochemistry; Alemania Fil: Kattge, Jens. German Center for Integrative Biodiversity Research (iDiv). Halle-Jena Leipzig; Alemania Fil: Bönisch, Gerhard. Max Planck Institute for Biogeochemistry; Alemania Fil: Díaz, Sandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto Multidisciplinario de Biología Vegetal (IMBIV); Argentina. Fil: Díaz, Sandra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Fil: Lavorel, Sandra. Université Grenoble Alpes. CNRS; Francia. Fil: Lavorel, Sandra. Université Savoie Mont Blanc. LECA; Francia. Fil: Colin Prentice, Iain. Imperial College; Reino Unido Fil: Leadley, Paul. University of Paris-Sud. Ecologie Systématique Evolution. CNRS; Francia Fil: Leadley, Paul. Université Paris-Saclay. AgroParisTech; Francia. Fil: Wirth, Christian. Max Planck Institute for Biogeochemistry; Alemania Fil: Wirth, Christian. German Center for Integrative Biodiversity Research (iDiv). Halle-Jena Leipzig; Alemania Fil: Wirth, Christian. University of Leipzig; Alemania Fil: Tautenhahn, Susanne. Max Planck Institute for Biogeochemistry; Alemania Fil: Tautenhahn, Susanne. German Center for Integrative Biodiversity Research (iDiv). Halle-Jena Leipzig; Alemania Fil: Werner, Gijsbert D.A. University of Oxford. Department of Zoology; Reino Unido Fil: Werner, Gijsbert D.A. University of Oxford. Balliol College; Reino Unido Fil: Gargaglione Verónica Beatriz. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Fil: Gargaglione Verónica Beatriz. Universidad Nacional de la Patagonia Austral; Argentina. Fil: Gargaglione Verónica Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Peri, Pablo Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Fil: Peri, Pablo Luis. Universidad Nacional de la Patagonia Austral; Argentina. Fil: Peri, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
- Published
- 2019
17. Temperature acclimation of photosynthesis has only minor effects on gross primary productivity (GPP) in an Earth System Model (ESM)
- Author
-
Goll, Daniel S., Brovkin, V., Kattge, J., Zaehle, S., and Reick, C.
- Subjects
ddc:550 - Published
- 2019
18. Traditional plant functional groups explain variation in economic but not size-related traits across the tundra biome
- Author
-
Thomas, H.J.D., Myers-Smith, I.H., Bjorkman, A.D., Elmendorf, S.C., Blok, D., Cornelissen, J.H.C., Forbes, B.C., Hollister, R.D., Normand, S., Prevéy, J.S., Rixen, C., Schaepman-Strub, G., Wilmking, M., Wipf, S., Cornwell, W., Kattge, J., Goetz, S.J., Guay, K.C., Alatalo, J.M., Anadon-Rosell, A., Angers-Blondin, S., Berner, L.T., Björk, R.G., Buchwal, A., Buras, A., Carbognani, M., Christie, K., Siegwart Collier, L., Cooper, E.J., Eskelinen, A., Frei, E.R., Grau, O., Grogan, P., Hallinger, M., Heijman, M.M.P.D., Hermanutz, L., Hudson, J.M.G., Hülber, K., Iturrate-Garcia, M., Iversen, C.M., Jaroszynska, F., Johnstone, J.F., Kaarlejärvi, E., Kulonen, A., Lamarque, L.J., Lévesque, E., Te Beest, M., de Vries, F.T., Ozinga, W.A., and van Bodegom, P.M.
- Subjects
food and beverages ,plant functional types ,ESG Stafafdelingen Omgevingswetenschappen ,plant functional groups ,Forest Ecology and Forest Management ,vegetation change ,plant traits ,ecosystem function ,ESG Staff Departments Environmental Sciences ,Vegetatie, Bos- en Landschapsecologie ,Bosecologie en Bosbeheer ,Vegetation, Forest and Landscape Ecology ,tundra biome ,community composition ,cluster analysis - Abstract
Aim: Plant functional groups are widely used in community ecology and earth system modelling to describe trait variation within and across plant communities. However, this approach rests on the assumption that functional groups explain a large proportion of trait variation among species. We test whether four commonly used plant functional groups represent variation in six ecologically important plant traits. Location: Tundra biome. Time period: Data collected between 1964 and 2016. Major taxa studied: 295 tundra vascular plant species. Methods: We compiled a database of six plant traits (plant height, leaf area, specific leaf area, leaf dry matter content, leaf nitrogen, seed mass) for tundra species. We examined the variation in species-level trait expression explained by four traditional functional groups (evergreen shrubs, deciduous shrubs, graminoids, forbs), and whether variation explained was dependent upon the traits included in analysis. We further compared the explanatory power and species composition of functional groups to alternative classifications generated using post hoc clustering of species-level traits. Results: Traditional functional groups explained significant differences in trait expression, particularly amongst traits associated with resource economics, which were consistent across sites and at the biome scale. However, functional groups explained 19% of overall trait variation and poorly represented differences in traits associated with plant size. Post hoc classification of species did not correspond well with traditional functional groups, and explained twice as much variation in species-level trait expression. Main conclusions: Traditional functional groups only coarsely represent variation in well-measured traits within tundra plant communities, and better explain resource economic traits than size-related traits. We recommend caution when using functional group approaches to predict tundra ecosystem change, or ecosystem functions relating to plant size, such as albedo or carbon storage. We argue that alternative classifications or direct use of specific plant traits could provide new insight into ecological prediction and modelling.
- Published
- 2019
19. Traditional plant functional groups explain variation in economic but not size‐related traits across the tundra biome
- Author
-
Thomas, H. J. (H. J. D.), Myers‐Smith, I. H. (I. H.), Bjorkman, A. D. (A. D.), Elmendorf, S. C. (S. C.), Blok, D. (D.), Cornelissen, J. H. (J. H. C.), Forbes, B. C. (B. C.), Hollister, R. D. (R. D.), Normand, S. (S.), Prevéy, J. S. (J. S.), Rixen, C. (C.), Schaepman‐Strub, G. (G.), Wilmking, M. (M.), Wipf, S. (S.), Cornwell, W. K. (W. K.), Kattge, J. (J.), Goetz, S. J. (S. J.), Guay, K. C. (K. C.), Alatalo, J. M. (J. M.), Anadon‐Rosell, A. (A.), Angers‐Blondin, S. (S.), Berner, L. T. (L. T.), Björk, R. G. (R. G.), Buchwal, A. (A.), Buras, A. (A.), Carbognani, M. (M.), Christie, K. (K.), Siegwart Collier, L. (L.), Cooper, E. J. (E. J.), Eskelinen, A. (A.), Frei, E. R. (E. R.), Grau, O. (O.), Grogan, P. (P.), Hallinger, M. (M.), Heijmans, M. M. (M. M. P. D.), Hermanutz, L. (L.), Hudson, J. M. (J. M. G.), Hülber, K. (K.), Iturrate‐Garcia, M. (M.), Iversen, C. M. (C. M.), Jaroszynska, F. (F.), Johnstone, J. F. (J. F.), Kaarlejärvi, E. (E.), Kulonen, A. (A.), Lamarque, L. J. (L. J.), Lévesque, E. (E.), Michelsen, A. (A.), Milbau, A. (A.), Nabe‐Nielsen, J. (J.), Nielsen, S. S. (S. S.), Ninot, J. M. (J. M.), Oberbauer, S. F. (S. F.), Olofsson, J. (J.), Onipchenko, V. G. (V. G.), Petraglia, A. (A.), Rumpf, S. B. (S. B.), Semenchuk, P. R. (P. R.), Soudzilovskaia, N. A. (N. A.), Spasojevic, M. J. (M. J.), Speed, J. D. (J. D. M.), Tape, K. D. (K. D.), te Beest, M. (M.), Tomaselli, M. (M.), Trant, A. (A.), Treier, U. A. (U. A.), Venn, S. (S.), Vowles, T. (T.), Weijers, S. (S.), Zamin, T. (T.), Atkin, O. K. (O. K.), Bahn, M. (M.), Blonder, B. (B.), Campetella, G. (G.), Cerabolini, B. E. (B. E. L.), Chapin III, F. S. (F. S.), Dainese, M. (M.), de Vries, F. T. (F. T.), Díaz, S. (S.), Green, W. (W.), Jackson, R. B. (R. B.), Manning, P. (P.), Niinemets, Ü. (Ü.), Ozinga, W. A. (W. A.), Peñuelas, J. (J.), Reich, P. B. (P. B.), Schamp, B. (B.), Sheremetev, S. (S.), and van Bodegom, P. M. (P. M.)
- Subjects
vegetation change ,plant traits ,ecosystem function ,food and beverages ,tundra biome ,community composition ,plant functional types ,plant functional groups ,cluster analysis - Abstract
Aim: Plant functional groups are widely used in community ecology and earth system modelling to describe trait variation within and across plant communities. However, this approach rests on the assumption that functional groups explain a large proportion of trait variation among species. We test whether four commonly used plant functional groups represent variation in six ecologically important plant traits. Location: Tundra biome. Time period: Data collected between 1964 and 2016. Major taxa studied: 295 tundra vascular plant species. Methods: We compiled a database of six plant traits (plant height, leaf area, specific leaf area, leaf dry matter content, leaf nitrogen, seed mass) for tundra species. We examined the variation in species‐level trait expression explained by four traditional functional groups (evergreen shrubs, deciduous shrubs, graminoids, forbs), and whether variation explained was dependent upon the traits included in analysis. We further compared the explanatory power and species composition of functional groups to alternative classifications generated using post hoc clustering of species‐level traits. Results: Traditional functional groups explained significant differences in trait expression, particularly amongst traits associated with resource economics, which were consistent across sites and at the biome scale. However, functional groups explained 19% of overall trait variation and poorly represented differences in traits associated with plant size. Post hoc classification of species did not correspond well with traditional functional groups, and explained twice as much variation in species‐level trait expression. Main conclusions: Traditional functional groups only coarsely represent variation in well‐measured traits within tundra plant communities, and better explain resource economic traits than size‐related traits. We recommend caution when using functional group approaches to predict tundra vegetation change, or ecosystem functions relating to plant size, such as albedo or carbon storage. We argue that alternative classifications or direct use of specific plant traits could provide new insights for ecological prediction and modelling.
- Published
- 2019
20. La cartographie continentale des fonctions des écosystèmes forestier révèle un potentiel élevé mais non réalisé de multifonctionnalité
- Author
-
FONS VAN DER, P., RATCLIFFE, S., RUIZ-BENITO, P., SCHERER-LORENZEN, Michael, VERHEYEN, Kris, WIRTH, C., ZAVALA, M.A., AMPOORTER, E., BAETEN, L., BARBARO, Luc, BASTIAS, C.C., BAUHUS, Juergen, BENAVIDES, R., BENNETER, A., BONAL, Damien, BOURIAUD, Olivier, BRUELHEIDE, H., BUSSOTTI, F., CARNOL, M., CASTAGNEYROL, Bastien, CHARBONNIER, Yohan, CORNELISSEN, J.H.C., DAHLGREN, J., CHECKO, E., COPPI, A., DAWUD, S.M., DECONCHAT, Marc, DE SMEDT, P., DE WANDELER, H., DOMISCH, T., FINÉR, L., FOTELLI, M., GESSLER, Arthur, GRANIER, A., GROSSIORD, Charlotte, GUYOT, V., HAASE, J., HÄTTENSCHWILER, Stephan, JACTEL, Hervé, JAROSZEWICZ, B., JOLY, F.X., JUCKER, T., KAMBACH, S., KAENDLER, Gerald, KATTGE, J., KORICHEVA, J., KUNSTLER, Georges, LEHTONEN, A., LIEBERGESELL, M., MANNING, P., MILLIGAN, H., MULLER, S., MUYS, Bart, NGUYEN, D., NOCK, C., OHSE, B., PAQUETTE, Alain, PENUELAS, J., POLLASTRINI, M., RADOGLOU, K., RAULUND-RASMUSSEN, K., ROGER, F., SEIDL, R., SELVI, F., STENLID, J., VALLADARES, Fernando, VAN KEER, J., VESTERDAL, L., FISCHER, M., GAMFELDT, L., and ALLAN, E.
- Subjects
fundiveurope - Published
- 2018
21. Late Quaternary climate legacies in contemporary plant functional composition
- Author
-
Blonder, B., Enquist, B.J., Graae, B.J., Kattge, J., Maintner, B.S., Morueta-Holme, N., Ordonez Gloria, A., Simova, I, Singarayer, J., Svenning, J.C., Valdes, P.J., Violle, C., and Environmental Sciences
- Subjects
legacy ,climate change ,Holocene ,disequillibrium ,functional diversity ,functional trait ,lag ,exclusion ,immigration ,Pleistoncene - Abstract
The functional composition of plant communities is commonly thought to be determined by contemporary climate. However, if rates of climate‐driven immigration and/or exclusion of species are slow, then contemporary functional composition may be explained by paleoclimate as well as by contemporary climate. We tested this idea by coupling contemporary maps of plant functional trait composition across North and South America to paleoclimate means and temporal variation in temperature and precipitation from the Last Interglacial (120 ka) to the present. Paleoclimate predictors strongly improved prediction of contemporary functional composition compared to contemporary climate predictors, with a stronger influence of temperature in North America (especially during periods of ice melting) and of precipitation in South America (across all times). Thus, climate from tens of thousands of years ago influences contemporary functional composition via slow assemblage dynamics.
- Published
- 2018
22. Traditional plant functional groups explain variation in economic but not size‐related traits across the tundra biome
- Author
-
Thomas, H. J. D., primary, Myers‐Smith, I. H., additional, Bjorkman, A. D., additional, Elmendorf, S. C., additional, Blok, D., additional, Cornelissen, J. H. C., additional, Forbes, B. C., additional, Hollister, R. D., additional, Normand, S., additional, Prevéy, J. S., additional, Rixen, C., additional, Schaepman‐Strub, G., additional, Wilmking, M., additional, Wipf, S., additional, Cornwell, W. K., additional, Kattge, J., additional, Goetz, S. J., additional, Guay, K. C., additional, Alatalo, J. M., additional, Anadon‐Rosell, A., additional, Angers‐Blondin, S., additional, Berner, L. T., additional, Björk, R. G., additional, Buchwal, A., additional, Buras, A., additional, Carbognani, M., additional, Christie, K., additional, Siegwart Collier, L., additional, Cooper, E. J., additional, Eskelinen, A., additional, Frei, E. R., additional, Grau, O., additional, Grogan, P., additional, Hallinger, M., additional, Heijmans, M. M. P. D., additional, Hermanutz, L., additional, Hudson, J. M. G., additional, Hülber, K., additional, Iturrate‐Garcia, M., additional, Iversen, C. M., additional, Jaroszynska, F., additional, Johnstone, J. F., additional, Kaarlejärvi, E., additional, Kulonen, A., additional, Lamarque, L. J., additional, Lévesque, E., additional, Little, C. J., additional, Michelsen, A., additional, Milbau, A., additional, Nabe‐Nielsen, J., additional, Nielsen, S. S., additional, Ninot, J. M., additional, Oberbauer, S. F., additional, Olofsson, J., additional, Onipchenko, V. G., additional, Petraglia, A., additional, Rumpf, S. B., additional, Semenchuk, P. R., additional, Soudzilovskaia, N. A., additional, Spasojevic, M. J., additional, Speed, J. D. M., additional, Tape, K. D., additional, te Beest, M., additional, Tomaselli, M., additional, Trant, A., additional, Treier, U. A., additional, Venn, S., additional, Vowles, T., additional, Weijers, S., additional, Zamin, T., additional, Atkin, O. K., additional, Bahn, M., additional, Blonder, B., additional, Campetella, G., additional, Cerabolini, B. E. L., additional, Chapin III, F. S., additional, Dainese, M., additional, de Vries, F. T., additional, Díaz, S., additional, Green, W., additional, Jackson, R. B., additional, Manning, P., additional, Niinemets, Ü., additional, Ozinga, W. A., additional, Peñuelas, J., additional, Reich, P. B., additional, Schamp, B., additional, Sheremetev, S., additional, and van Bodegom, P. M., additional
- Published
- 2018
- Full Text
- View/download PDF
23. The magnitude of interannual variability of ecosystem photosynthetic capacity is controled by stand age and biodiversity
- Author
-
Musavi, T., Migliavacca, M., Mahecha, M.D., Reichstein, M., Kattge, J., Wirth, C., Andrew Black, T., Janssens, I., Knohl, A., Loustau, D., Roupsard, O., Varlagin, A., Ramba, S., Cescatti, A., Gianelle, D., Kondo, H., and Tamrakar, R.
- Subjects
Global carbon cycle ,Interannual variability ,Settore AGR/05 - ASSESTAMENTO FORESTALE E SELVICOLTURA ,Ciclo del carbonio ,GPP ,Ecosystem functional property ,Ecosistema funzionalità ,Variabilità intearannuale - Published
- 2017
24. Mapping local and global variability in plant trait distributions
- Author
-
BUTLER, E. E., DATTA, A., FLORES-MORENO, H., CHEN, M., WYTHERS, K. R., FAZAYELI, F., BANERJEE, A., ATKIN, O. K., KATTGE, J., AMIAUD, B., BLONDER, B., BOENISCH, G., BOND-LAMBERTY, B., BROWN, K. A., BYUN, C., CAMPETELLA, G., CERABOLINI, B. E. L., CORNELISSEN, J. H. C., CRAINE, J. M., CRAVEN, D., DE VRIES, F. T., DIAZ, S., DOMINGUES, T. F., FOREY, E., GONZALEZ-MELO, A., GROSS, N., HAN, W., HATTINGH, W. N., HICKLER, T., JANSEN, S., SOSINSKI JUNIOR, E. E., KRAMER, K., ETHAN E. BUTLER, ABHIRUP DATTA, HABACUC FLORES-MORENO, MING CHEN, KIRK R. WYTHERS, FARIDEH FAZAYELI, ARINDAM BANERJEE, OWEN K. ATKIN, JENS KATTGE, BERNARD AMIAUD, BENJAMIN BLONDER, GERHARD BOENISCH, BEN BOND-LAMBERTY, KERRY A. BROWN, CHAEHO BYUN, GIANDIEGO CAMPETELLA, BRUNO E. L. CERABOLINI, JOHANNES H. C. CORNELISSEN, JOSEPH M. CRAINE, DYLAN CRAVEN, FRANCISKA T. DE VRIES, SANDRA DIAZ, TOMAS F. DOMINGUES, ESTELLE FOREY, ANDR?ES GONZALEZ-MELO, NICOLAS GROSS, WENXUAN HAN, WESLEY N. HATTINGH, THOMAS HICKLER, STEVEN JANSEN, ENIO EGON SOSINSKI JUNIOR, CPACT, and KOEN KRAMER.
- Subjects
Clima - Abstract
Made available in DSpace on 2018-01-16T23:25:14Z (GMT). No. of bitstreams: 1 Enio2017PNAS2017ButlerE1093746.pdf: 2780433 bytes, checksum: 6961da4bb1493e231123f5627751b471 (MD5) Previous issue date: 2018-01-16
- Published
- 2017
25. Global relationship of wood and leaf litter decomposability: the role of functional traits within and across plant organs
- Author
-
Pietsch, K.A., Ogle, K., Cornelissen, J.H.C., Cornwell, W.K., Bönisch, G., Craine, J.M., Jackson, B.G., Kattge, J., Peltzer, D.A., Penuelas, J., Reich, P.B., Wardle, D.A., Weedon, J.T., Wright, I.J., Zanne, A.E., Wirth, C., Systems Ecology, and Amsterdam Global Change Institute
- Abstract
Aim: Recent meta-analyses have revealed that plant traits and their phylogenetic history influence decay rates of dead wood and leaf litter, but it remains unknown if decay rates of wood and litter covary over a wide range of tree species and across ecosystems. We evaluated the relationships between species-specific wood and leaf litter decomposability, as well as between wood and leaf traits that control their respective decomposability. Location: Global. Methods: We compiled data on rates of wood and leaf litter decomposition for 324 and 635 tree species, respectively, and data on six functional traits for both organs. We used hierarchical Bayesian meta-analysis to estimate, for the first time, species-specific values for wood and leaf litter decomposability standardized to reference conditions (k*
- Published
- 2014
26. Improving ecosystem productivity modeling through spatially explicit estimation of optimal light use efficiency
- Author
-
Madani, N., Kimball, J., Affleck, D.L.R., Kattge, J., Graham, J.M.A., van Bodegom, P.M., Reich, P.B., Running, S.W., Systems Ecology, and Amsterdam Global Change Institute
- Subjects
TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY ,MathematicsofComputing_DISCRETEMATHEMATICS - Abstract
A common assumption of remote sensing-based light use efficiency (LUE) models for estimating vegetation gross primary productivity (GPP) is that plants in a biome matrix operate at their photosynthetic capacity under optimal climatic conditions. A prescribed constant biome maximum light use efficiency parameter (LUEmax) defines the maximum photosynthetic carbon conversion rate under these conditions and is a large source of model uncertainty. Here we used tower eddy covariance measurement-based carbon (CO2) fluxes for spatial estimation of optimal LUE (LUEopt) across North America. LUEopt was estimated at 62 Flux Network sites using tower daily carbon fluxes and meteorology, and satellite observed fractional photosynthetically active radiation from the Moderate Resolution Imaging Spectroradiometer. Ageostatistical model was fitted to 45 flux tower-derived LUEopt data points using independent geospatial environmental variables, including global plant traits, soil moisture, terrain aspect, land cover type, and percent tree cover, and validated at 17 independent tower sites. Estimated LUEopt shows large spatial variability within and among different land cover classes indicated from the sparse tower network. Leaf nitrogen content and soil moisture regime are major factors explaining LUEopt patterns. GPP derived from estimated LUEopt shows significant correlation improvement against tower GPP records (R2 = 76.9%; mean root-mean-square error (RMSE) = 257gCm-2yr-1), relative to alternative GPP estimates derived using biome-specific LUEmax constants (R2 = 34.0%; RMSE = 439gCm-2yr-1). GPP determined from the LUEopt map also explains a 49.4% greater proportion of tower GPP variability at the independent validation sites and shows promise for improving understanding of LUE patterns and environmental controls and enhancing regional GPP monitoring from satellite remote sensing.
- Published
- 2014
27. Functional resilience against climate-driven extinctions : comparing the functional diversity of European and North American tree floras
- Author
-
Liebergesell, M., Reu, B., Stahl, U., Freiberg, M., Welk, E., Kattge, J., Cornelissen, J.H.C., Peñuelas, J., Wirth, C., Systems Ecology, and Amsterdam Global Change Institute
- Subjects
Conservation of Natural Resources ,Evolutionary Processes ,Ecological Metrics ,Conservation Biology ,Climate Change ,Flowering plants ,lcsh:Medicine ,Gymnosperms ,Extinction, Biological ,Ecosystems ,Trees ,Geographical Locations ,Species extinction ,Magnoliopsida ,lcsh:Science ,Flowering Plants ,Species Extinction ,Conservation Science ,SDG 15 - Life on Land ,Species diversity ,Evolutionary Biology ,Geography ,Ecology ,lcsh:R ,Ecology and Environmental Sciences ,Organisms ,Biology and Life Sciences ,Species Diversity ,Biodiversity ,Plants ,Europe ,Cycadopsida ,People and Places ,lcsh:Q ,Ecosystem Functioning ,Research Article - Abstract
Future global change scenarios predict a dramatic loss of biodiversity for many regions in the world, potentially reducing the resistance and resilience of ecosystem functions. Once before, during Plio-Pleistocene glaciations, harsher climatic conditions in Europe as compared to North America led to a more depauperate tree flora. Here we hypothesize that this climate driven species loss has also reduced functional diversity in Europe as compared to North America. We used variation in 26 traits for 154 North American and 66 European tree species and grid-based co-occurrences derived from distribution maps to compare functional diversity patterns of the two continents. First, we identified similar regions with respect to contemporary climate in the temperate zone of North America and Europe. Second, we compared the functional diversity of both continents and for the climatically similar subregions using the functional dispersion-index (FDis) and the functional richness index (FRic). Third, we accounted in these comparisons for grid-scale differences in species richness, and, fourth, investigated the associated trait spaces using dimensionality reduction. For gymnosperms we find similar functional diversity on both continents, whereas for angiosperms functional diversity is significantly greater in Europe than in North America. These results are consistent across different scales, for climatically similar regions and considering species richness patterns. We decomposed these differences in trait space occupation into differences in functional diversity vs. differences in functional identity. We show that climate- driven species loss on a continental scale might be decoupled from or at least not linearly related to changes in functional diversity. This might be important when analyzing the effects of climate-driven biodiversity change on ecosystem functioning.
- Published
- 2016
28. Improved representation of plant functional types and physiology in the Joint UK Land Environment Simulator (JULES v4.2) using plant trait information
- Author
-
Harper, A.B., Cox, P.M., Friedlingstein, P., Wiltshire, A.J., Jones, C.D., Sitch, S., Mercado, L.M., Groenendijk, M., Robertson, E., Kattge, J., Bönisch, G., Atkin, O.K., Bahn, M., Cornelissen, J., Niinemets, U. Onipchenko V., Peñuelas, J., Poorter, L., Reich, P.B., Soudzilovskaia, N.A., and Bodegom, P.M. van
- Published
- 2016
29. BHPMF – a hierarchical Bayesian approach to gap-filling and trait prediction for macroecology and functional biogeography
- Author
-
Schrodt, F., Kattge, J., Shan, H., Fazayeli, F., Joswig, J., Banerjee, A., Reichstein, M., Bönisch, G., Díaz, S., Dickie, J., Gillison, A., Karpatne, A., Lavorel, S., Leadley, P., Wirth, C., Wright, I., Wright, S., and Reich, P.
- Abstract
Aim: Functional traits of organisms are key to understanding and predicting biodiversity and ecological change, which motivates continuous collection of traits and their integration into global databases. Such trait matrices are inherently sparse, severely limiting their usefulness for further analyses. On the other hand, traits are characterized by the phylogenetic trait signal, trait–trait correlations and environmental constraints, all of which provide information that could be used to statistically fill gaps. We propose the application of probabilistic models which, for the first time, utilize all three characteristics to fill gaps in trait databases and predict trait values at larger spatial scales. Innovation For this purpose we introduce BHPMF, a hierarchical Bayesian extension of probabilistic matrix factorization (PMF). PMF is a machine learning technique which exploits the correlation structure of sparse matrices to impute missing entries. BHPMF additionally utilizes the taxonomic hierarchy for trait prediction and provides uncertainty estimates for each imputation. In combination with multiple regression against environmental information, BHPMF allows for extrapolation frompoint measurements to larger spatial scales.We demonstrate the applicability of BHPMF in ecological contexts, using different plant functional trait datasets, also comparing results to taking the species mean and PMF. Main conclusions Sensitivity analyses validate the robustness and accuracy of BHPMF: our method captures the correlation structure of the trait matrix as well as the phylogenetic trait signal – also for extremely sparse trait matrices – and provides a robust measure of confidence in prediction accuracy for each missing entry. The combination of BHPMF with environmental constraints provides a promising concept to extrapolate traits beyond sampled regions, accounting for intraspecific trait variability. We conclude that BHPMF and its derivatives have a high potential to support future trait-based research in macroecology and functional biogeography.
- Published
- 2015
30. Simple measures of climate, soil properties and plant traits predict national scale grassland soil carbon stocks
- Author
-
Manning, P., de Vries, F. T., Tallowin, J. R. B., Smith, R., Mortimer, S. R., Pilgrim, E. S., Harrison, K. A., Wright, D. G., Quirk, H., Benson, J., Shipley, B., Cornelissen, J. H. C., Kattge, J., Bonisch, G., Wirth, C., and Bardgett, R. D.
- Abstract
1. Soil carbon (C) storage is a key ecosystem service. Soil C stocks play a vital role in soil fertility and climate regulation, but the factors that control these stocks at regional and national scales are unknown, particularly when their composition and stability are considered. As a result, their mapping relies on either unreliable proxy measures or laborious direct measurements. \ud 2. Using data from an extensive national survey of English grasslands we show that surface soil (0-7cm) C stocks in size fractions of varying stability can be predicted at both regional and national scales from plant traits and simple measures of soil and climatic conditions. \ud 3. Soil C stocks in the largest pool, of intermediate particle size (50-250 µm), were best explained by mean annual temperature (MAT), soil pH and soil moisture content. The second largest C pool, highly stable physically and biochemically protected particles (0.45-50 µm), was explained by soil pH and the community abundance weighted mean (CWM) leaf nitrogen (N) content, with the highest soil C stocks under N rich vegetation. The C stock in the small active fraction (250-4000 µm) was explained by a wide range of variables: MAT, mean annual precipitation, mean growing season length, soil pH and CWM specific leaf area; stocks were higher under vegetation with thick and/or dense leaves. \ud 4. Testing the models describing these fractions against data from an independent English region indicated moderately strong correlation between predicted and actual values and no systematic bias, with the exception of the active fraction, for which predictions were inaccurate. \ud 5. Synthesis and Applications: Validation indicates that readily available climate, soils and plant survey data can be effective in making local- to landscape-scale (1-100,000 km2) soil C stock predictions. Such predictions are a crucial component of effective management strategies to protect C stocks and enhance soil C sequestration.
- Published
- 2015
31. Global variability in leaf respiration in relation to climate, plant functional types and leaf traits
- Author
-
Atkin, O.K. Bloomfield, K.J. Reich, P.B. Tjoelker, M.G. Asner, G.P. Bonal, D. Bönisch, G. Bradford, M.G. Cernusak, L.A. Cosio, E.G. Creek, D. Crous, K.Y. Domingues, T.F. Dukes, J.S. Egerton, J.J.G. Evans, J.R. Farquhar, G.D. Fyllas, N.M. Gauthier, P.P.G. Gloor, E. Gimeno, T.E. Griffin, K.L. Guerrieri, R. Heskel, M.A. Huntingford, C. Ishida, F.Y. Kattge, J. Lambers, H. Liddell, M.J. Lloyd, J. Lusk, C.H. Martin, R.E. Maksimov, A.P. Maximov, T.C. Malhi, Y. Medlyn, B.E. Meir, P. Mercado, L.M. Mirotchnick, N. Ng, D. Niinemets, U. O'Sullivan, O.S. Phillips, O.L. Poorter, L. Poot, P. Prentice, I.C. Salinas, N. Rowland, L.M. Ryan, M.G. Sitch, S. Slot, M. Smith, N.G. Turnbull, M.H. Vanderwel, M.C. Valladares, F. Veneklaas, E.J. Weerasinghe, L.K. Wirth, C. Wright, I.J. Wythers, K.R. Xiang, J. Xiang, S. Zaragoza-Castells, J.
- Abstract
Summary: Leaf dark respiration (R dark ) is an important yet poorly quantified component of the global carbon cycle. Given this, we analyzed a new global database of R dark and associated leaf traits. Data for 899 species were compiled from 100 sites (from the Arctic to the tropics). Several woody and nonwoody plant functional types (PFTs) were represented. Mixed-effects models were used to disentangle sources of variation in R dark . Area-based R dark at the prevailing average daily growth temperature (T) of each site increased only twofold from the Arctic to the tropics, despite a 20°C increase in growing T (8-28°C). By contrast, R dark at a standard T (25°C, R dark 25 ) was threefold higher in the Arctic than in the tropics, and twofold higher at arid than at mesic sites. Species and PFTs at cold sites exhibited higher R dark 25 at a given photosynthetic capacity (V cmax 25 ) or leaf nitrogen concentration ([N]) than species at warmer sites. R dark 25 values at any given V cmax 25 or [N] were higher in herbs than in woody plants. The results highlight variation in R dark among species and across global gradients in T and aridity. In addition to their ecological significance, the results provide a framework for improving representation of R dark in terrestrial biosphere models (TBMs) and associated land-surface components of Earth system models (ESMs). © 2015 New Phytologist Trust.
- Published
- 2015
32. The relationship of leaf photosynthetic traits - V-cmax and J(max) - to leaf nitrogen, leaf phosphorus, and specific leaf area: a meta-analysis and modeling study
- Author
-
Walker, A.P., Beckerman, A.P., Gu, L., Kattge, J., Cernusak, L.A., Domingues, T.F., Scales, J.C., Wohlfahrt, G., Wullschleger, S.D., and Woodward, F.I.
- Abstract
Great uncertainty exists in the global exchange of carbon between the atmosphere and the terrestrial biosphere. An important source of this uncertainty lies in the dependency of photosynthesis on the maximum rate of carboxylation (Vcmax) and the maximum rate of electron transport (Jmax). Understanding and making accurate prediction of C fluxes thus requires accurate characterization of these rates and their relationship with plant nutrient status over large geographic scales. Plant nutrient status is indicated by the traits: leaf nitrogen (N), leaf phosphorus (P), and specific leaf area (SLA). Correlations between Vcmax and Jmax and leaf nitrogen (N) are typically derived from local to global scales, while correlations with leaf phosphorus (P) and specific leaf area (SLA) have typically been derived at a local scale. Thus, there is no global-scale relationship between Vcmax and Jmax and P or SLA limiting the ability of global-scale carbon flux models do not account for P or SLA. We gathered published data from 24 studies to reveal global relationships of Vcmax and Jmax with leaf N, P, and SLA. Vcmax was strongly related to leaf N, and increasing leaf P substantially increased the sensitivity of Vcmax to leaf N. Jmax was strongly related to Vcmax, and neither leaf N, P, or SLA had a substantial impact on the relationship. Although more data are needed to expand the applicability of the relationship, we show leaf P is a globally important determinant of photosynthetic rates. In a model of photosynthesis, we showed that at high leaf N (3 gm−2), increasing leaf P from 0.05 to 0.22 gm−2 nearly doubled assimilation rates. Finally, we show that plants may employ a conservative strategy of Jmax to Vcmax coordination that restricts photoinhibition when carboxylation is limiting at the expense of maximizing photosynthetic rates when light is limiting.
- Published
- 2014
33. Constraining a land surface model with multiple observations by application of the MPI-Carbon Cycle Data Assimilation System
- Author
-
Schürmann, G. J., primary, Kaminski, T., additional, Köstler, C., additional, Carvalhais, N., additional, Voßbeck, M., additional, Kattge, J., additional, Giering, R., additional, Rödenbeck, C., additional, Heimann, M., additional, and Zaehle, S., additional
- Published
- 2016
- Full Text
- View/download PDF
34. Plant-driven variation in decomposition rates improves projections of global litter stock distribution
- Author
-
Brovkin, V., Bodegom, P. M., Kleinen, T., Wirth, C., Cornwell, W. K., Cornelissen, J. H. C., Kattge, J., Systems Ecology, and Amsterdam Global Change Institute
- Subjects
lcsh:Geology ,lcsh:QH501-531 ,lcsh:QH540-549.5 ,lcsh:QE1-996.5 ,lcsh:Life ,lcsh:Ecology - Abstract
Plant litter stocks are critical, regionally for their role in fueling fire regimes and controlling soil fertility, and globally through their feedback to atmospheric CO2 and climate. Here we employ two global databases linking plant functional types to decomposition rates of wood and leaf litter (Cornwell et al., 2008; Weedon et al., 2009) to improve future projections of climate and carbon cycle using an intermediate complexity Earth system model. Implementing separate wood and leaf litter decomposabilities and their temperature sensitivities for a range of plant functional types yielded a more realistic distribution of litter stocks in all present biomes with except of boreal forests and projects a strong increase in global litter stocks and a concomitant small decrease in atmospheric CO2 by the end of this century. Despite a relatively strong increase in litter stocks, the modified parameterization results in less elevated wildfire emissions because of litter redistribution towards more humid regions.
- Published
- 2012
35. TRY - a global database of plant traits
- Author
-
Kattge J, Díaz S, Lavorel S, Ic, Prentice, Leadley P, Bönisch G, Garnier E, Westoby M, Pb, Reich, Ij, Wright, Jhc, Cornelissen, Violle C, Sp, Harrison, Pm, Bodegom, Reichstein M, Bj, Enquist, Na, Soudzilovskaia, Dd, Ackerly, Anand M, Atkin O, Bahn M, Tr, Baker, Baldocchi D, Bekker R, Cc, Blanco, Blonder B, Wj, Bond, Bradstock R, Bunker DE, Casanoves F, Cavender-Bares J, Jq, Chambers, Fs Iii, Chapin, Chave J, Coomes D, Wk, Cornwell, Jm, Craine, Bh, Dobrin, Duarte L, Durka W, Elser J, Esser G, Estiarte M, Wf, Fagan, Fang J, Fernández-Méndez F, Fidelis A, Finegan B, Flores O, Ford H, Frank D, Gt, Freschet, Nm, Fyllas, Rv, Gallagher, Wa, Green, Ag, Gutierrez, Hickler T, Si, Higgins, Jg, Hodgson, Jalili A, Jansen S, Ca, Joly, Aj, Kerkhoff, Kirkup D, Kitajima K, Kleyer M, Klotz S, Jmh, Knops, Kramer K, Kühn I, Kurokawa H, Laughlin D, Td, Lee, Leishman M, Lens F, Lenz T, Sl, Lewis, Lloyd J, Llusià J, Louault F, Ma S, Md, Mahecha, Manning P, Massad T, Be, Medlyn, Messier J, At, Moles, Sc, Müller, Nadrowski K, Naeem S, Ülo Niinemets, Nöllert S, Nüske A, Ogaya R, Oleksyn J, Vg, Onipchenko, Onoda Y, Ordoñez J, Overbeck G, Wa, Ozinga, Patiño S, Paula S, Jg, Pausas, Peñuelas J, Ol, Phillips, Pillar V, Poorter H, Poorter L, Poschlod P, Prinzing A, Proulx R, Rammig A, Reinsch S, Reu B, Sack L, Salgado-Negret B, Sardans J, Shiodera S, Shipley B, Siefert A, Sosinski E, Soussana J, Swaine E, Swenson N, Thompson K, Thornton P, Waldram M, Weiher E, White M, White S, Sj, Wright, Yguel B, Zaehle S, Ae, Zanne, and Wirth C
- Subjects
SUB-ARCTIC FLORA ,environmental gradient ,HAWAIIAN METROSIDEROS-POLYMORPHA ,plant trait ,TROPICAL RAIN-FOREST ,Original Articles ,global analysis ,functional diversity ,OLD-FIELD SUCCESSION ,plant attribute ,vegetation model ,WIDE-RANGE ,FUNCTIONAL TRAITS ,intraspecific variation ,ddc:570 ,comparative ecology ,LEAF ECONOMICS SPECTRUM ,interspecific variation ,plant functional type ,RELATIVE GROWTH-RATE ,LITTER DECOMPOSITION RATES ,TERRESTRIAL BIOSPHERE ,database ,global change - Abstract
Plant traits – the morphological, anatomical, physiological, biochemical and phenological characteristics of plants and their organs – determine how primary producers respond to environmental factors, affect other trophic levels, influence ecosystem processes and services and provide a link from species richness to ecosystem functional diversity. Trait data thus represent the raw material for a wide range of research from evolutionary biology, community and functional ecology to biogeography. Here we present the global database initiative named TRY, which has united a wide range of the plant trait research community worldwide and gained an unprecedented buy-in of trait data: so far 93 trait databases have been contributed. The data repository currently contains almost three million trait entries for 69 000 out of the world’s 300 000 plant species, with a focus on 52 groups of traits characterizing the vegetative and regeneration stages of the plant life cycle, including growth, dispersal, establishment and persistence. A first data analysis shows that most plant traits are approximately log-normally distributed, with widely differing ranges of variation across traits. Most trait variation is between species (interspecific), but significant intraspecific variation is also documented, up to 40% of the overall variation. Plant functional types (PFTs), as commonly used in vegetation models, capture a substantial fraction of the observed variation – but for several traits most variation occurs within PFTs, up to 75% of the overall variation. In the context of vegetation models these traits would better be represented by state variables rather than fixed parameter values. The improved availability of plant trait data in the unified global database is expected to support a paradigm shift from species to trait-based ecology, offer new opportunities for synthetic plant trait research and enable a more realistic and empirically grounded representation of terrestrial vegetation in Earth system models.
- Published
- 2011
36. A generic structure for plant trait databases
- Author
-
Kattge, J., Ogle, K., Bönisch, G., Díaz, S., Lavorel, S., Madin, J., Nadrowski, K., Nöllert, S., Sartor, K., and Wirth, C.
- Subjects
Ciencias Biológicas ,MODELLING ,DATABASES ,PLANT TRAITS ,CIENCIAS NATURALES Y EXACTAS ,ONTOLOGIES ,Conservación de la Biodiversidad - Abstract
1. Plant traits are fundamental for understanding and predicting vegetation responses to global changes, and they provide a promising basis towards a more quantitative and predictive approach to ecology. As a consequence, information on plant traits is rapidly accumulating, and there is a growing need for efficient database tools that enable the assembly and synthesis of trait data. 2. Plant traits are highly heterogeneous, exhibit a low degree of standardization and are linked and interdependent at various levels of biological organization: tissue, organ, plant and population. Therefore, they often require ancillary data for interpretation, including descriptors of the biotic and abiotic environment, methods and taxonomic relationships. 3. We introduce a generic database structure that is tailored to accommodate plant trait complexity and is consistent with current theoretical approaches to characterize the structure of observational data. The over-arching utility of the proposed database structure is illustrated based on two independent plant trait database projects. 4. The generic database structure proposed here is meant to serve as a flexible blueprint for future plant trait databases, improving data discovery, and ensuring compatibility among them. Fil: Kattge, Jens. Max Planck Institute for Biogeochemistry; Alemania Fil: Ogle, Kiona. University of Wyoming. Department of Botany; Estados Unidos Fil: Bönisch, Gerhard. Max Planck Institute for Biogeochemistry; Alemania Fil: Diaz, Sandra Myrna. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina Fil: Lavorel, Sandra. Université Joseph Fourier. Laboratoire d’Ecologie Alpine; Francia Fil: Madin, Joshua. Macquarie University. Department of Biological Sciences; Australia Fil: Nadrowski, Karin. University of Leipzig. Department of Special Botany and Functional Biodiversity Research; Alemania Fil: Noellert, Stephanie. Max Planck Institute for Biogeochemistry; Alemania Fil: Sartor, Karla. Harvard University. Biological Laboratories, Department of Organismic and Evolutionary Biology; Estados Unidos Fil: Wirth, Christian. Max Planck Institute for Biogeochemistry; Alemania. University of Leipzig. Department of Special Botany and Functional Biodiversity Research; Alemania
- Published
- 2011
37. Improving the predictability of global CO2 assimilation rates under climate change
- Author
-
Ziehn, T., Kattge, J., Knorr, W., and Scholze, M.
- Abstract
Feedbacks between the terrestrial carbon cycle and the atmosphere have the potential to greatly modify expected rates of future climate change. This makes it all the more urgent to exploit all existing data for the purpose of accurate modelling of the underlying processes. Here we use a Bayesian random sampling method to constrain parameters of the Farquhar model of leaf photosynthesis and a model of leaf respiration against a comprehensive set of plant trait data at the leaf level. The resulting probability density function (PDF) of model parameters is contrasted with a PDF derived using a conventional "expert knowledge" approach. When running the Biosphere Energy Transfer Hydrology (BETHY) scheme with a 1000- member sub-sample of each of the two PDFs for present climate and a climate scenario, we find that the use of plant trait data is able to reduce the uncertainty range of simulated net leaf assimilation (NLA) by more than a factor of two. Most of the remaining variability is caused by only four parameters, associated with the acclimation of photosynthesis to plant growth temperature and to how leaf stomata react to atmospheric CO2 concentration. We suggest that this method should be used extensively to parameterize Earth system models, given that data bases on plant traits are increasingly being made available to the modelling community. Citation: Ziehn, T., J. Kattge, W. Knorr, and M. Scholze (2011), Improving the predictability of global CO2 assimilation rates under climate change, Geophys. Res. Lett., 38, L10404, doi:10.1029/2011GL047182.
- Published
- 2011
38. TRY – a global database of plant traits
- Author
-
Kattge, J., Lens, Frederic, and Staff publications
- Subjects
environmental gradient ,intraspecific variation ,plant trait ,comparative ecology ,interspecific variation ,global analysis ,plant functional type ,functional diversity ,database ,global change ,plant attribute ,vegetation model - Abstract
Plant traits – the morphological, anatomical, physiological, biochemical and phenological characteristics of plants and their organs – determine how primary producers respond to environmental factors, affect other trophic levels, influence ecosystem processes and services and provide a link from species richness to ecosystem functional diversity. Trait data thus represent the raw material for a wide range of research from evolutionary biology, community and functional ecology to biogeography. Here we present the global database initiative named TRY, which has united a wide range of the plant trait research community worldwide and gained an unprecedented buy-in of trait data: so far 93 trait databases have been contributed. The data repository currently contains almost three million trait entries for 69 000 out of the world’s 300 000 plant species, with a focus on 52 groups of traits characterizing the vegetative and regeneration stages of the plant life cycle, including growth, dispersal, establishment and pepersistence. A first data analysis shows that most plant traits are approximately log-normally distributed, with widely differing ranges of variation across traits. Most trait variation is between species (interspecific), but significant intraspecific variation is also documented, up to 40% of the overall variation. Plant functional types (PFTs), as commonly used in vegetation models, capture a substantial fraction of the observed variation – but for several traits most variation occurs within PFTs
- Published
- 2011
39. A vertically discretised canopy description for ORCHIDEE (SVN r2290) and the modifications to the energy, water and carbon fluxes
- Author
-
Naudts, K., primary, Ryder, J., additional, McGrath, M. J., additional, Otto, J., additional, Chen, Y., additional, Valade, A., additional, Bellasen, V., additional, Berhongaray, G., additional, Bönisch, G., additional, Campioli, M., additional, Ghattas, J., additional, De Groote, T., additional, Haverd, V., additional, Kattge, J., additional, MacBean, N., additional, Maignan, F., additional, Merilä, P., additional, Penuelas, J., additional, Peylin, P., additional, Pinty, B., additional, Pretzsch, H., additional, Schulze, E. D., additional, Solyga, D., additional, Vuichard, N., additional, Yan, Y., additional, and Luyssaert, S., additional
- Published
- 2015
- Full Text
- View/download PDF
40. A vertically discretised canopy description for ORCHIDEE (SVN r2290) and the modifications to the energy, water and carbon fluxes
- Author
-
Naudts, K., primary, Ryder, J., additional, J. McGrath, M., additional, Otto, J., additional, Chen, Y., additional, Valade, A., additional, Bellasen, V., additional, Berhongaray, G., additional, Bönisch, G., additional, Campioli, M., additional, Ghattas, J., additional, De Groote, T., additional, Haverd, V., additional, Kattge, J., additional, MacBean, N., additional, Maignan, F., additional, Merilä, P., additional, Penuelas, J., additional, Peylin, P., additional, Pinty, B., additional, Pretzsch, H., additional, Schulze, E. D., additional, Solyga, D., additional, Vuichard, N., additional, Yan, Y., additional, and Luyssaert, S., additional
- Published
- 2014
- Full Text
- View/download PDF
41. Multi-scale phylogenetic structure in coastal dune plant communities across the globe
- Author
-
Brunbjerg, A. K., primary, Cavender-Bares, J., additional, Eiserhardt, W. L., additional, Ejrnaes, R., additional, Aarssen, L. W., additional, Buckley, H. L., additional, Forey, E., additional, Jansen, F., additional, Kattge, J., additional, Lane, C., additional, Lubke, R. A., additional, Moles, A. T., additional, Monserrat, A. L., additional, Peet, R. K., additional, Roncal, J., additional, Wootton, L., additional, and Svenning, J.-C., additional
- Published
- 2014
- Full Text
- View/download PDF
42. The BETHY/JSBACH Carbon Cycle Data Assimilation System: experiences and challenges
- Author
-
Kaminski, T., primary, Knorr, W., additional, Schürmann, G., additional, Scholze, M., additional, Rayner, P. J., additional, Zaehle, S., additional, Blessing, S., additional, Dorigo, W., additional, Gayler, V., additional, Giering, R., additional, Gobron, N., additional, Grant, J. P., additional, Heimann, M., additional, Hooker‐Stroud, A., additional, Houweling, S., additional, Kato, T., additional, Kattge, J., additional, Kelley, D., additional, Kemp, S., additional, Koffi, E. N., additional, Köstler, C., additional, Mathieu, P.‐P., additional, Pinty, B., additional, Reick, C. H., additional, Rödenbeck, C., additional, Schnur, R., additional, Scipal, K., additional, Sebald, C., additional, Stacke, T., additional, van Scheltinga, A. Terwisscha, additional, Vossbeck, M., additional, Widmann, H., additional, and Ziehn, T., additional
- Published
- 2013
- Full Text
- View/download PDF
43. Impacts of trait variation through observed trait–climate relationships on performance of an Earth system model: a conceptual analysis
- Author
-
Verheijen, L. M., primary, Brovkin, V., additional, Aerts, R., additional, Bönisch, G., additional, Cornelissen, J. H. C., additional, Kattge, J., additional, Reich, P. B., additional, Wright, I. J., additional, and van Bodegom, P. M., additional
- Published
- 2013
- Full Text
- View/download PDF
44. Simultaneous assimilation of satellite and eddy covariance data for improving terrestrial water and carbon simulations at a semi-arid woodland site in Botswana
- Author
-
Kato, T., primary, Knorr, W., additional, Scholze, M., additional, Veenendaal, E., additional, Kaminski, T., additional, Kattge, J., additional, and Gobron, N., additional
- Published
- 2013
- Full Text
- View/download PDF
45. Modeling the vertical soil organic matter profile using Bayesian parameter estimation
- Author
-
Braakhekke, M. C., primary, Wutzler, T., additional, Beer, C., additional, Kattge, J., additional, Schrumpf, M., additional, Ahrens, B., additional, Schöning, I., additional, Hoosbeek, M. R., additional, Kruijt, B., additional, Kabat, P., additional, and Reichstein, M., additional
- Published
- 2013
- Full Text
- View/download PDF
46. Constraining a land surface model with multiple observations by application of the MPI-Carbon Cycle Data Assimilation System.
- Author
-
Schürmann, G. J., Köstler, C., Carvalhais, N., Kattge, J., Rödenbeck, C., Heimann, M., Zaehle, S., Kaminski, T., Voßbeck, M., and Giering, R.
- Subjects
CARBON cycle ,BIOSPHERE ,ATMOSPHERE - Abstract
We describe the Max Planck Institute Carbon Cycle Data Assimilation System (MPI-CCDAS) built around the tangent-linear version of the land surface scheme of the MPI-Earth System Model v1 (JSBACH). The simulated terrestrial biosphere processes (phenology and carbon balance) were constrained by observations of the fraction of photosynthetically active radiation (TIP-FAPAR product) and by observations of atmospheric CO
2 at a global set of monitoring stations for the years 2005-2009. The system successfully, and computationally efficiently, improved average foliar area and northern extra-tropical seasonality of foliar area when constrained by TIP-FAPAR. Global net and gross carbon fluxes were improved when constrained by atmospheric CO2 , although the system tended to underestimate tropical productivity. Assimilating both data streams jointly allowed the MPI-CCDAS to match both observations (TIP-FAPAR and atmospheric CO2 ) equally well as the single data stream assimilation cases, therefore overall increasing the appropriateness of the resultant parameter values and biosphere dynamics. Our study thus highlights the role of the TIP-FAPAR product in stabilising the underdetermined atmospheric inversion problem and demonstrates the value of multiple-data stream assimilation for the simulation of terrestrial biosphere dynamics. The constraint on regional gross and net CO2 flux patterns is limited through the parametrisation of the biosphere model. We expect improvement on that aspect through a refined initialisation strategy and inclusion of further biosphere observations as constraints. [ABSTRACT FROM AUTHOR]- Published
- 2016
- Full Text
- View/download PDF
47. Impacts of trait variation through observed trait-climate relationships on performance of a representative Earth System model: a conceptual analysis
- Author
-
Verheijen, L. M., primary, Brovkin, V., additional, Aerts, R., additional, Bönisch, G., additional, Cornelissen, J. H. C., additional, Kattge, J., additional, Reich, P. B., additional, Wright, I. J., additional, and van Bodegom, P. M., additional
- Published
- 2012
- Full Text
- View/download PDF
48. Supplementary material to "Impacts of trait variation through observed trait-climate relationships on performance of a representative Earth System model: a conceptual analysis"
- Author
-
Verheijen, L. M., primary, Brovkin, V., additional, Aerts, R., additional, Bönisch, G., additional, Cornelissen, J. H. C., additional, Kattge, J., additional, Reich, P. B., additional, Wright, I. J., additional, and van Bodegom, P. M., additional
- Published
- 2012
- Full Text
- View/download PDF
49. Future challenges of representing land-processes in studies on land-atmosphere interactions
- Author
-
Arneth, A., primary, Mercado, L., additional, Kattge, J., additional, and Booth, B. B. B., additional
- Published
- 2012
- Full Text
- View/download PDF
50. Nutrient limitation reduces land carbon uptake in simulations with a model of combined carbon, nitrogen and phosphorus cycling
- Author
-
Goll, D. S., primary, Brovkin, V., additional, Parida, B. R., additional, Reick, C. H., additional, Kattge, J., additional, Reich, P. B., additional, van Bodegom, P. M., additional, and Niinemets, Ü., additional
- Published
- 2012
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.