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1. Reconstruction of Araucaria araucana cone production reveals warming intensifies regionally synchronized masting

Author

Andrew Hacket‐Pain, Fidel A. Roig, Davide Ascoli, Carlos LeQuesne, and Martin Hadad

Subjects
climate change, dendrochronology, dendroecology, mast seeding, Patagonia, synchrony, Ecology, QH540-549.5
Abstract

Abstract The reproduction of many long‐lived plants is highly variable and synchronized, known as masting. Masting is a key driver of plant regeneration dynamics and has cascading effects on food webs and carbon and nutrient fluxes through ecosystems. Masting patterns can respond to changes in climate, but natural long‐term variability in masting behavior (i.e., baseline variability) is poorly understood. Here we use tree‐rings to create a four‐century reconstruction of annual cone production to uncover centennial‐scale evolution in masting of Araucaria araucana, a dioecious masting species in South America. Over the last four decades, direct observations of annual cone production in this species revealed remarkable range‐wide synchrony of masting. Our tree‐ring‐based reconstruction places this in a long‐term context, revealing that intense regional masting is not a consistent feature of A. araucana reproduction. For extensive periods over the last four centuries, masting has been a site‐specific phenomenon, with variability in cone production that was not regionally synchronized. Comparison with regional climate reconstructions indicates that regional synchrony of masting varies with regional temperature trends, including during recent decades. During warmer periods, synchrony is enhanced, and during cooler periods, regional synchrony breaks down. These dynamics have implications for understanding the reproduction of this iconic and endangered tree species and provide evidence of long‐term linkages between climate change and masting behavior. Our study demonstrates the potential for novel tree‐ring‐based reconstructions of masting to reveal crucial insights into baseline variability and the response of masting to climate change.

Published
2024
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2. The CV is dead, long live the CV!

Author

Jean R. Lobry, Marie‐Claude Bel‐Venner, Michał Bogdziewicz, Andrew Hacket‐Pain, and Samuel Venner

Subjects
Kvålseth's coefficient of variation, masting, MASTREE+, Pearson's coefficient of variation, scale invariant statistics of variability, Ecology, QH540-549.5, Evolution, QH359-425
Abstract

Abstract Biology has an increasing need to reconsider the tools used to assess the variability of measurements, in addition to their central tendency. More than 100 years after Pearson's publication, most biologists still use the “good old” Pearson's coefficient of variation, PCV, despite its documented flaws such as sensitivity to excess zero values and/or irrelevant low mean values, which may compromise its use in some biological applications. A new statistic was developed in 2017 by Kvålseth, KCV, which is easy to implement. Unlike PCV, KCV is bounded (between 0 and 1), and it can be computed from PCV, ensuring backward compatibility with past studies. In addition to simulated data, we used the recent MASTREE+ database comprising the time series of the fruiting dynamics of perennial plants worldwide to compare the properties of PCV and KCV. Using as a benchmark the loose hump‐shaped relationship between the interannual variability of fruiting and latitude, KCV led to significant increase in statistical power as it required almost half as many time series as PCV to detect the relationship. Perhaps most importantly, simulated data showed that KCV allows huge reductions in the length of time series required to estimate the population true variability, saving more than half the duration of long‐term monitoring if fruiting fluctuations are very large, which is common in perennial plant species. Compared to the widely used PCV, KCV has great accuracy for estimating and analysing variability in biology, while strongly increasing statistical power. Selecting appropriate tools to assess the variability of measurements is crucial, particularly where the variability is of primary biological interest. Using Kvålseth's KCV is a promising avenue to circumvent the well‐known issues of the former Pearson’ PCV, its properties remain to be explored in other fields of biology, for purposes other than purely statistical ones (e.g. estimating heritability or evolvability of traits).

Published
2023
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3. A new approach for modeling delayed fire‐induced tree mortality

Author

Janet Maringer, Andrew Hacket‐Pain, Davide Ascoli, Matteo Garbarino, and Marco Conedera

Subjects
Cox proportional hazards model, Fagus sylvatica, fire ecology, fungi infestation, Kaplan–Meier estimator, novel disturbance, Ecology, QH540-549.5
Abstract

Abstract Global change is expanding the ecological niche of mixed‐severity fire regimes into ecosystems that have not usually been associated with wildfires, such as temperate forests and rainforests. In contrast to stand‐replacing fires, mixed‐severity fires may result in delayed tree mortality driven by secondary factors such as post‐fire environmental conditions. Because these effects vary as a function of time post‐fire, their study using commonly applied logistic regression models is challenging. Here, we propose overcoming this challenge through the application of time‐explicit survival models such as the Kaplan‐Meier (KM‐) estimator and the Cox proportional‐hazards (PH‐) model. We use data on tree mortality after mixed‐severity fires in beech forests to (1) illustrate temporal trends in the survival probabilities and the mortality hazard of beech, (2) estimate annual survival probabilities for different burn severities, and (3) consider driving factors with possible time‐dependent effects. Based on our results, we argue that the combination of KM‐estimator and Cox‐PH models have the potential of substantially improve the analysis of delayed post‐disturbance tree mortality by answering when and why tree mortality occurs. The results provide more specific information for implementing post‐fire management measures.

Published
2021
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4. The CV is dead, long live the CV!

Author

Lobry, Jean R., primary, Bel‐Venner, Marie‐Claude, additional, Bogdziewicz, Michał, additional, Hacket‐Pain, Andrew, additional, and Venner, Samuel, additional

Published
2023
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5. How to measure mast seeding?

Author

Michal Bogdziewicz, Rafael Calama, Benoit Courbaud, Josep M. Espelta, Andrew Hacket‐Pain, Valentin Journé, Georges Kunstler, Michael Steele, Tong Qiu, Magdalena Zywiec, James S. Clark, Polish National Agency for Academic Exchange, Bogdziewicz, Michal, Calama Sainz, Rafael Argimiro, Courbaud, Benoit, Espelta, Josep Maria, Hacket-Pain, Andrew, Journé, Valentin, Kunstler, Georges, Qiu, Tong, Zywiec, Magdalena, and Clark, James S.

Subjects
Masting breakdown, Seed production, Physiology, Phenotypic selection, Volatility, Plant Science, Reproductive variation
Abstract

9 Pág., The periodic production of large seed crops, or masting, is a widespread phenomenon in perennial plants. This behavior can enhance the reproductive efficiency of plants, leading to increased fitness, and produce ripple effects on food webs. While variability from year to year is a defining characteristic of masting, the methods used to quantify this variability are highly debated. The commonly used coefficient of variation lacks the ability to account for the serial dependence in mast data and can be influenced by zeros, making it a less suitable choice for various applications based on individual-level observations, such as phenotypic selection, heritability, and climate change studies, which rely on individual-plant-level datasets that often contain numerous zeros. To address these limitations, we present three case studies and introduce volatility and periodicity, which account for the variance in the frequency domain by emphasizing the significance of long intervals in masting. By utilizing examples of Sorbus aucuparia, Pinus pinea, Quercus robur, Quercus pubescens, and Fagus sylvatica, we demonstrate how volatility captures the effects of variance at both high and low frequencies, even in the presence of zeros, leading to improved ecological interpretations of the results. The growing availability of long-term, individual-plant datasets promises significant advancements in the field, but requires appropriate tools for analysis, which the new metrics provide., The study was supported by the Polish National Agency for Academic Exchange Bekker program no. PPN/BEK/2020/1/00009/U/00001 and Polish National Science Centre grant no. 2019/35/D/NZ8/00050. RC's research is funded by National Project OLDPINE AGL-2017-83828-C2.1R.

Published
2023
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6. Linking seed size and number to trait syndromes in trees

Author

Michal Bogdziewicz, Marie‐Claire Aravena Acuña, Robert Andrus, Davide Ascoli, Yves Bergeron, Daniel Brveiller, Thomas Boivin, Raul Bonal, Thomas Caignard, Maxime Cailleret, Rafael Calama, Sergio Donoso Calderon, J. Julio Camarero, Chia‐Hao Chang‐Yang, Jerome Chave, Francesco Chianucci, Natalie L. Cleavitt, Benoit Courbaud, Andrea Cutini, Thomas Curt, Adrian J. Das, Hendrik Davi, Nicolas Delpierre, Sylvain Delzon, Michael Dietze, Laurent Dormont, William Farfan‐Rios, Catherine A. Gehring, Gregory S. Gilbert, Georg Gratzer, Cathryn H. Greenberg, Arthur Guignabert, Qinfeng Guo, Andrew Hacket‐Pain, Arndt Hampe, Qingmin Han, Kazuhiko Hoshizaki, Ines Ibanez, Jill F. Johnstone, Valentin Journé, Thomas Kitzberger, Johannes M. H. Knops, Georges Kunstler, Richard Kobe, Jonathan G. A. Lageard, Jalene M. LaMontagne, Mateusz Ledwon, Theodor Leininger, Jean‐Marc Limousin, James A. Lutz, Diana Macias, Anders Marell, Eliot J. B. McIntire, Emily Moran, Renzo Motta, Jonathan A. Myers, Thomas A. Nagel, Shoji Naoe, Mahoko Noguchi, Michio Oguro, Hiroko Kurokawa, Jean‐Marc Ourcival, Robert Parmenter, Ignacio M. Perez‐Ramos, Lukasz Piechnik, Tomasz Podgórski, John Poulsen, Tong Qiu, Miranda D. Redmond, Chantal D. Reid, Kyle C. Rodman, Pavel Šamonil, Jan Holik, C. Lane Scher, Harald Schmidt Van Marle, Barbara Seget, Mitsue Shibata, Shubhi Sharma, Miles Silman, Michael A. Steele, Jacob N. Straub, I‐Fang Sun, Samantha Sutton, Jennifer J. Swenson, Peter A. Thomas, Maria Uriarte, Giorgio Vacchiano, Thomas T. Veblen, Boyd Wright, S. Joseph Wright, Thomas G. Whitham, Kai Zhu, Jess K. Zimmerman, Magdalna Zywiec, James S. Clark, National Science Foundation (US), Belmont Forum, NASA Astrobiology Institute (US), Gordon and Betty Moore Foundation, National Science Centre (Poland), Polish National Agency for Academic Exchange, US Forest Service, Narodowe Centrum Nauki (Poland), Bogdziewicz, Michal, Aravena, Marie-Claire, Andrus, Robert, Ascoli, Davide, Bergeron, Yves, Bonal, Raul, Caignard, Thomas, Calama, Rafael, Calderon, Sergio Donoso, Camarero, J Julio, Chang-Yang, Chia-Hao, Cleavitt, Natalie L, Courbaud, Benoit, Curt, Thomas, Davi, Hendrik, Delpierre, Nicolas, Delzon, Sylvain, Dietze, Michael, Dormont, Laurent, Farfan-Rios, William, Gehring, Catherine, Gilbert, Gregory S., Gratzer, Georg, Greenberg, Cathryn H., Guignabert, Arthur, Guo,Qinfeng, Hacket-Pain, Andrew, Hampe, Arndt, Han, Qingmin, Hoshizaki, Kazuhiko, Ibáñez, Inés, Johnstone, Jill F., Journé, Valentin, Kitzberger, Thomas, Knops, Johannes M. H., Kunstler, Georges, Kobe, Richard K., Lageard, Jonathan G. A., LaMontagne, Jalene M., Ledwon, Mateusz, Leininger, Theodor, Limousin, Jean-Marc, Lutz, James A., Moran, Emily, Motta, Renzo, Myers, Jonathan A., Nagel, Thomas A., Shoji, N., Michio Oguro, Mahoko Noguchi, Ourcival, Jean-Marc, Parmenter, Robert, Perez-Ramos, Ignacio M., Piechnik, Lukasz, Poulsen, John, Qiu, Tong, Redmond, Miranda D., Reid, Chantal D., Rodman, Kyle C., Scher, C. Lane, Seget, Barbara, Silman, Miles, Sun, I-Fang, Sutton, Samantha, Swenson, Jennifer J., Thomas, Peter A., Uriarte, Maria, Vacchiano, Giorgio, Veblen, Thomas T., Wright, Boyd, Wright, S. Joseph, Zhu, Kai, Zimmerman, Jess K., Zywiec, Magdalena, Laboratoire des EcoSystèmes et des Sociétés en Montagne (UR LESSEM), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Centro Austral de Investigaciones Científicas [Ushuaia] (CADIC), Consejo Nacional de Investigaciones Científicas y Técnicas [Buenos Aires] (CONICET), Ecosystèmes forestiers (UR EFNO), Università degli studi di Torino = University of Turin (UNITO), Université du Québec en Abitibi-Témiscamingue (UQAT), AgroParisTech, Ecologie des Forêts Méditerranéennes (URFM), Universidad Complutense de Madrid = Complutense University of Madrid [Madrid] (UCM), Biodiversité, Gènes & Communautés (BioGeCo), Université de Bordeaux (UB)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Risques, Ecosystèmes, Vulnérabilité, Environnement, Résilience (RECOVER), Aix Marseille Université (AMU)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Universidad de Chili / Departamento de Ciencias de la Computation, Instituto Pirenaico de Ecologìa = Pyrenean Institute of Ecology [Zaragoza] (IPE - CSIC), National Kaohsiung Marine University [Taïwan] (NKMU), Evolution et Diversité Biologique (EDB), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS), Department of Computer Science [Ithaca], Cornell University [New York], Centro di Viticoltura ed Enologia [CREA], Consiglio per la Ricerca in Agricoltura e l’analisi dell’economia agraria = Council for Agricultural Research and Economics (CREA), California Sciences Institute, Ecologie Systématique et Evolution (ESE), Université Paris-Sud - Paris 11 (UP11)-AgroParisTech-Centre National de la Recherche Scientifique (CNRS), Boston University [Boston] (BU), Centre d’Ecologie Fonctionnelle et Evolutive (CEFE), Université Paul-Valéry - Montpellier 3 (UPVM)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université de Montpellier (UM), Saint Louis University (SLU), Northern Arizona University [Flagstaff], University of California (UC), Universität für Bodenkultur Wien = University of Natural Resources and Life [Vienne, Autriche] (BOKU), USDA Agricultural Research Service [Maricopa, AZ] (USDA), United States Department of Agriculture (USDA), Interactions Sol Plante Atmosphère (UMR ISPA), Ecole Nationale Supérieure des Sciences Agronomiques de Bordeaux-Aquitaine (Bordeaux Sciences Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), University of Liverpool, Forestry and Forest Products Research Institute (FFPRI), Akita University, University of Michigan [Dearborn], University of Michigan System, Nicholas School of the Environment, Duke University [Durham], Alabama Space Grant ConsortiumAIST16-0052AIST18-0063Belmont Forum1854976Polish National Agency for Academic Exchange (NAWA)PPN/BEK/2020/1/00009/U/00001National Science Centre, Poland2019/35/D/NZ8/00050National Science Foundation (NSF)DEB- 1754443, and ANR-18-MPGA-0004,FORBIC,Prévision du changement de la biodiversité(2018)

Subjects
Global and Planetary Change, Ecology, [SDV]Life Sciences [q-bio], fecundity, functional traits, leaf economics, life history strategies, size syndrome, tree recruitment, Life history strategie, Settore AGR/05 - Assestamento Forestale e Selvicoltura, Tree recruitmen, [SDE]Environmental Sciences, fecundity functional traits leaf economics life history strategies size syndrome, Ecology, Evolution, Behavior and Systematics
Abstract

12 páginas.- 4 figuras.- referencias.- Additional supporting information can be found online in the Supporting Information section at the end of this article.- Full Access in https://onlinelibrary.wiley.com/doi/full/10.1111/geb.13652, Aim Our understanding of the mechanisms that maintain forest diversity under changing climate can benefit from knowledge about traits that are closely linked to fitness. We tested whether the link between traits and seed number and seed size is consistent with two hypotheses, termed the leaf economics spectrum and the plant size syndrome, or whether reproduction represents an independent dimension related to a seed size–seed number trade-off. Location Most of the data come from Europe, North and Central America and East Asia. A minority of the data come from South America, Africa and Australia. Time period 1960–2022. Major taxa studied Trees. Methods We gathered 12 million observations of the number of seeds produced in 784 tree species. We estimated the number of seeds produced by individual trees and scaled it up to the species level. Next, we used principal components analysis and generalized joint attribute modelling (GJAM) to map seed number and size on the tree traits spectrum. Results Incorporating seed size and number into trait analysis while controlling for environment and phylogeny with GJAM exposes relationships in trees that might otherwise remain hidden. Production of the large total biomass of seeds [product of seed number and seed size; hereafter, species seed productivity (SSP)] is associated with high leaf area, low foliar nitrogen, low specific leaf area (SLA) and dense wood. Production of high seed numbers is associated with small seeds produced by nutrient-demanding species with softwood, small leaves and high SLA. Trait covariation is consistent with opposing strategies: one fast-growing, early successional, with high dispersal, and the other slow-growing, stress-tolerant, that recruit in shaded conditions. Main conclusions Earth system models currently assume that reproductive allocation is indifferent among plant functional types. Easily measurable seed size is a strong predictor of the seed number and species seed productivity. The connection of SSP with the functional traits can form the first basis of improved fecundity prediction across global forests., The project has been funded by grants to J.S.C. from the National Science Foundation, most re-cently DEB-1754443, and by the Belmont Forum (1854976), NASA (AIST16-0052 and AIST18-0063) and the Programme d'Investissement d'Avenir under project FORBIC (18-MPGA-0004; Make Our Planet Great Again). Jerry Franklin's data remain acces-sible through NSF LTER DEB-1440409. Data from Hubbard Brook (New Hampshire) were funded through NSF-LTER. Puerto Rico data were funded by NSF grants, most recently DEB 0963447 and LTREB 11222325. Data from the Andes Biodiversity and Ecosystem Research Group were funded by the Gordon and Betty Moore Foundation and NSF 727 LTREB 1754647. M.B. was supported by grant no. 2019/35/D/NZ8/00050 from the (Polish) National Science Centre and by Polish National Agency for Academic Exchange Bekker programme PPN/BEK/2020/1/00009/U/00001. Research by the USDA Forest Service and the USGS was funded by these agencies. Any use of trade, firm or product names does not imply endorsement by the US Government. Any use of trade, firm, or product names is for descriptive purposes only and does not imply en -dorsement by the U.S. Government

Published
2023
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7. Linking seed size and number to trait syndromes in trees

Author

Bogdziewicz, M, Acuña, MCA, Andrus, R, Ascoli, D, Bergeron, Y, Brveiller, D, Boivin, T, Bonal, R, Caignard, T, Cailleret, M, Calama, R, Calderon, SD, Camarero, JJ, Chang-Yang, CH, Chave, J, Chianucci, F, Cleavitt, NL, Courbaud, B, Cutini, A, Curt, T, Das, A, Davi, H, Delpierre, N, Delzon, S, Dietze, M, Dormont, L, Farfan-Rios, W, Gehring, CA, Gilbert, GS, Gratzer, G, Greenberg, CH, Guignabert, A, Guo, Q, Hacket-Pain, A, Hampe, A, Han, Q, Hoshizaki, K, Ibanez, I, Johnstone, JF, Journé, V, Kitzberger, T, Knops, JMH, Kunstler, G, Kobe, R, Lageard, JGA, LaMontagne, JM, Ledwon, M, Leininger, T, Limousin, JM, Lutz, JA, Macias, D, Marell, A, McIntire, EJB, Moran, E, Motta, R, Myers, J, Nagel, TA, Naoe, S, Noguchi, M, Oguro, M, Kurokawa, H, Ourcival, JM, Parmenter, R, Perez-Ramos, IM, Piechnik, L, Podgórski, T, Poulsen, J, Qiu, T, Redmond, MD, Reid, CD, Rodman, KC, Šamonil, P, Holik, J, Scher, CL, Van Marle, HS, Seget, B, Shibata, M, Sharma, S, Silman, M, Steele, MA, Straub, JN, Sun, IF, Sutton, S, Swenson, J, Thomas, PA, Uriarte, M, Vacchiano, G, Veblen, TT, Wright, B, Wright, Sam, Whitham, TG, Zhu, K, Zimmerman, JK, Zywiec, M, Clark, JS, Bogdziewicz, M, Acuña, MCA, Andrus, R, Ascoli, D, Bergeron, Y, Brveiller, D, Boivin, T, Bonal, R, Caignard, T, Cailleret, M, Calama, R, Calderon, SD, Camarero, JJ, Chang-Yang, CH, Chave, J, Chianucci, F, Cleavitt, NL, Courbaud, B, Cutini, A, Curt, T, Das, A, Davi, H, Delpierre, N, Delzon, S, Dietze, M, Dormont, L, Farfan-Rios, W, Gehring, CA, Gilbert, GS, Gratzer, G, Greenberg, CH, Guignabert, A, Guo, Q, Hacket-Pain, A, Hampe, A, Han, Q, Hoshizaki, K, Ibanez, I, Johnstone, JF, Journé, V, Kitzberger, T, Knops, JMH, Kunstler, G, Kobe, R, Lageard, JGA, LaMontagne, JM, Ledwon, M, Leininger, T, Limousin, JM, Lutz, JA, Macias, D, Marell, A, McIntire, EJB, Moran, E, Motta, R, Myers, J, Nagel, TA, Naoe, S, Noguchi, M, Oguro, M, Kurokawa, H, Ourcival, JM, Parmenter, R, Perez-Ramos, IM, Piechnik, L, Podgórski, T, Poulsen, J, Qiu, T, Redmond, MD, Reid, CD, Rodman, KC, Šamonil, P, Holik, J, Scher, CL, Van Marle, HS, Seget, B, Shibata, M, Sharma, S, Silman, M, Steele, MA, Straub, JN, Sun, IF, Sutton, S, Swenson, J, Thomas, PA, Uriarte, M, Vacchiano, G, Veblen, TT, Wright, B, Wright, Sam, Whitham, TG, Zhu, K, Zimmerman, JK, Zywiec, M, and Clark, JS

Abstract

Aim: Our understanding of the mechanisms that maintain forest diversity under changing climate can benefit from knowledge about traits that are closely linked to fitness. We tested whether the link between traits and seed number and seed size is consistent with two hypotheses, termed the leaf economics spectrum and the plant size syndrome, or whether reproduction represents an independent dimension related to a seed size–seed number trade-off. Location: Most of the data come from Europe, North and Central America and East Asia. A minority of the data come from South America, Africa and Australia. Time period: 1960–2022. Major taxa studied: Trees. Methods: We gathered 12 million observations of the number of seeds produced in 784 tree species. We estimated the number of seeds produced by individual trees and scaled it up to the species level. Next, we used principal components analysis and generalized joint attribute modelling (GJAM) to map seed number and size on the tree traits spectrum. Results: Incorporating seed size and number into trait analysis while controlling for environment and phylogeny with GJAM exposes relationships in trees that might otherwise remain hidden. Production of the large total biomass of seeds [product of seed number and seed size; hereafter, species seed productivity (SSP)] is associated with high leaf area, low foliar nitrogen, low specific leaf area (SLA) and dense wood. Production of high seed numbers is associated with small seeds produced by nutrient-demanding species with softwood, small leaves and high SLA. Trait covariation is consistent with opposing strategies: one fast-growing, early successional, with high dispersal, and the other slow-growing, stress-tolerant, that recruit in shaded conditions. Main conclusions: Earth system models currently assume that reproductive allocation is indifferent among plant functional types. Easily measurable seed size is a strong predictor of the seed number and species seed productivity. The co

Published
2023

8. Reproductive collapse in European beech results from declining pollination efficiency in large trees

Author

Bogdziewicz, M, Kelly, D, Tanentzap, AJ, Thomas, P, Foest, J, Lageard, J, Hacket-Pain, A, Bogdziewicz, M, Kelly, D, Tanentzap, AJ, Thomas, P, Foest, J, Lageard, J, and Hacket-Pain, A

Abstract

Climate warming increases tree mortality which will require sufficient reproduction to ensure population viability. However, the response of tree reproduction to climate change remains poorly understood. Warming can reduce synchrony and interannual variability of seed production (“masting breakdown”) which can increase seed predation and decrease pollination efficiency in trees. Here, using 40 years of observations of individual seed production in European beech (Fagus sylvatica), we showed that masting breakdown results in declining viable seed production over time, in contrast to the positive trend apparent in raw seed count data. Furthermore, tree size modulates the consequences of masting breakdown on viable seed production. While seed predation increased over time mainly in small trees, pollination efficiency disproportionately decreased in larger individuals. Consequently, fecundity declined over time across all size classes, but the overall effect was greatest in large trees. Our study showed that a fundamental biological relationship—correlation between tree size and viable seed production—has been reversed as the climate has warmed. That reversal has diverse consequences for forest dynamics; including for stand- and biogeographical-level dynamics of forest regeneration. The tree size effects suggest management options to increase forest resilience under changing climates.

Published
2023

9. How to measure mast seeding?

Author

Bogdziewicz, Michal, primary, Calama, Rafael, additional, Courbaud, Benoit, additional, Espelta, Josep M., additional, Hacket‐Pain, Andrew, additional, Journé, Valentin, additional, Kunstler, Georges, additional, Steele, Michael, additional, Qiu, Tong, additional, Zywiec, Magdalena, additional, and Clark, James S., additional

Published
2023
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13. Linking seed size and number to trait syndromes in trees

Author

Bogdziewicz, Michal, primary, Acuña, Marie‐Claire Aravena, additional, Andrus, Robert, additional, Ascoli, Davide, additional, Bergeron, Yves, additional, Brveiller, Daniel, additional, Boivin, Thomas, additional, Bonal, Raul, additional, Caignard, Thomas, additional, Cailleret, Maxime, additional, Calama, Rafael, additional, Calderon, Sergio Donoso, additional, Camarero, J. Julio, additional, Chang‐Yang, Chia‐Hao, additional, Chave, Jerome, additional, Chianucci, Francesco, additional, Cleavitt, Natalie L., additional, Courbaud, Benoit, additional, Cutini, Andrea, additional, Curt, Thomas, additional, Das, Adrian J., additional, Davi, Hendrik, additional, Delpierre, Nicolas, additional, Delzon, Sylvain, additional, Dietze, Michael, additional, Dormont, Laurent, additional, Farfan‐Rios, William, additional, Gehring, Catherine A., additional, Gilbert, Gregory S., additional, Gratzer, Georg, additional, Greenberg, Cathryn H., additional, Guignabert, Arthur, additional, Guo, Qinfeng, additional, Hacket‐Pain, Andrew, additional, Hampe, Arndt, additional, Han, Qingmin, additional, Hoshizaki, Kazuhiko, additional, Ibanez, Ines, additional, Johnstone, Jill F., additional, Journé, Valentin, additional, Kitzberger, Thomas, additional, Knops, Johannes M. H., additional, Kunstler, Georges, additional, Kobe, Richard, additional, Lageard, Jonathan G. A., additional, LaMontagne, Jalene M., additional, Ledwon, Mateusz, additional, Leininger, Theodor, additional, Limousin, Jean‐Marc, additional, Lutz, James A., additional, Macias, Diana, additional, Marell, Anders, additional, McIntire, Eliot J. B., additional, Moran, Emily, additional, Motta, Renzo, additional, Myers, Jonathan A., additional, Nagel, Thomas A., additional, Naoe, Shoji, additional, Noguchi, Mahoko, additional, Oguro, Michio, additional, Kurokawa, Hiroko, additional, Ourcival, Jean‐Marc, additional, Parmenter, Robert, additional, Perez‐Ramos, Ignacio M., additional, Piechnik, Lukasz, additional, Podgórski, Tomasz, additional, Poulsen, John, additional, Qiu, Tong, additional, Redmond, Miranda D., additional, Reid, Chantal D., additional, Rodman, Kyle C., additional, Šamonil, Pavel, additional, Holik, Jan, additional, Scher, C. Lane, additional, Van Marle, Harald Schmidt, additional, Seget, Barbara, additional, Shibata, Mitsue, additional, Sharma, Shubhi, additional, Silman, Miles, additional, Steele, Michael A., additional, Straub, Jacob N., additional, Sun, I‐Fang, additional, Sutton, Samantha, additional, Swenson, Jennifer J., additional, Thomas, Peter A., additional, Uriarte, Maria, additional, Vacchiano, Giorgio, additional, Veblen, Thomas T., additional, Wright, Boyd, additional, Wright, S. Joseph, additional, Whitham, Thomas G., additional, Zhu, Kai, additional, Zimmerman, Jess K., additional, Zywiec, Magdalna, additional, and Clark, James S., additional

Published
2023
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16. Author response for 'Globally, tree fecundity exceeds productivity gradients'

Author

null Journe, Valentin, null Andrus, Robert, null Aravena, Marie-Claire, null Ascoli, Davide, null Berretti, Roberta, null Berveiller, Daniel, null Bogdziewicz, Michal, null Boivin, Thomas, null Bonal, Raul, null Caignard, Thomas, null Calama, Rafael, null Julio Camarero, Jesus, null Chang-Yang, Chia-Hao, null Courbaud, Benoit, null Courbet, Francois, null Curt, Thomas, null Das, Adrian J., null Daskalakou, Evangelia, null Davi, Hendrik, null Delpierre, Nicolas, null Delzon, Sylvain, null Dietze, Michael, null Donoso Calderon, Sergio, null Dormont, Laurent, null Maria Espelta, Josep, null Fahey, Timothy J., null Farfan-Rios, William, null Gehring, Catherine A., null Gilbert, Gregory S., null Gratzer, Georg, null Greenberg, Cathryn H., null Guo, Qinfeng, null Hacket-Pain, Andrew, null Hampe, Arndt, null Han, Qingmin, null Lambers, Janneke Hille Ris, null Hoshizaki, Kazuhiko, null Ibanez, Ines, null Johnstone, Jill F., null Kabeya, Daisuke, null Kays, Roland, null Kitzberger, Thomas, null Knops, Johannes M. H., null Kobe, Richard K., null Kunstler, Georges, null Lageard, Jonathan G. A., null LaMontagne, Jalene M., null Leininger, Theodor, null Limousin, Jean-Marc, null Lutz, James A., null Macias, Diana, null McIntire, Eliot J. B., null Moore, Christopher M., null Moran, Emily, null Motta, Renzo, null Myers, Jonathan A., null Nagel, Thomas A., null Noguchi, Kyotaro, null Ourcival, Jean-Marc, null Parmenter, Robert, null Pearse, Ian S., null Perez-Ramos, Ignacio M., null Piechnik, Lukasz, null Poulsen, John, null Poulton-Kamakura, Renata, null Qiu, Tong, null Redmond, Miranda D., null Reid, Chantal D., null Rodman, Kyle C., null Rodriguez-Sanchez, Francisco, null Sanguinetti, Javier D., null Scher, C. Lane, null Schmidt Van Marle, Harald, null Seget, Barbara, null Sharma, Shubhi, null Silman, Miles, null Steele, Michael A., null Stephenson, Nathan L., null Straub, Jacob N., null Swenson, Jennifer J., null Swift, Margaret, null Thomas, Peter A., null Uriarte, Maria, null Vacchiano, Giorgio, null Veblen, Thomas T., null Whipple, Amy, V, null Whitham, Thomas G., null Wright, Boyd, null Wright, S. Joseph, null Zhu, Kai, null Zimmerman, Jess K., null Zlotin, Roman, null Zywiec, Magdalena, and null Clark, James S.

Published
2022
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17. MASTREE+: time-series of plant reproductive effort from six continents

Author

Hacket-Pain, Andrew, Foest, Jessie J, Pearse, Ian S, LaMontagne, Jalene M, Koenig, Walter D, Vacchiano, Giorgio, Bogdziewicz, Michał, Caignard, Thomas, Celebias, Paulina, van Dormolen, Joep, Fernández-Martínez, Marcos, Moris, Jose V, Palaghianu, Ciprian, Pesendorfer, Mario, Satake, Akiko, Schermer, Eliane, Tanentzap, Andrew J, Thomas, Peter A, Vecchio, Davide, Wion, Andreas, Wohlgemuth, Thomas, Xue, Tingting, Abernethy, Katherine, Daniel Barrera, Marcelo, Barton, Jessica H, Boutin, Stan, Bush, Emma R, Donoso Calderón, Sergio, Carevic, Felipe S, Volkmer de Castilho, Carolina, Manuel Cellini, Juan, Chapman, Colin A, Chapman, Hazel, Chianucci, Francesco, da Costa, Patricia, Croisé, Luc, Cutini, Andrea, Dantzer, Ben, Justin DeRose, R, Thoussaint Dikangadissi, Jean, Dimoto, Edmond, Lopes da Fonseca, Fernanda, Gallo, Leonardo, Gratzer, Georg, Greene, David F, Hadad, Martín A, Huertas Herrera, Alejandro, Jeffery, KJ, Johnstone, Jill F, Kalbitzer, Urs, Kantorowicz, Władysław, Klimas, Christie A, Lageard, Jonathan GA, Lane, Jeffrey, Lapin, Katharina, Ledwon, Mateusz, Leeper, Abigail C, Vanessa Lencinas, Maria, Cláudia Lira-Guedes, Ana, Lordon, Michael C, Marchelli, Paula, Marino, Shealyn, Schmidt Van Marle, Harald, McAdam, Andrew G, Momont, Ludovic RW, Nicolas, Manuel, Helena de Oliveira Wadt, Lúcia, Panahi, Parisa, Martínez Pastur, Guillermo, Patterson, Thomas, Luis Peri, Pablo, Piechnik, Łukasz, Pourhashemi, Mehdi, Espinoza Quezada, Claudia, Roig, Fidel A, Peña Rojas, Karen, Micaela Rosas, Yamina, Schueler, Silvio, Seget, Barbara, Soler, Rosina, Steele, Michael A, Toro-Manríquez, Mónica, Tutin, Caroline EG, Ukizintambara, Tharcisse, White, Lee, Yadok, Biplang, Willis, John L, Zolles, Anita, Żywiec, Magdalena, Ascoli, Davide, Hacket-Pain, Andrew, Foest, Jessie J, Pearse, Ian S, LaMontagne, Jalene M, Koenig, Walter D, Vacchiano, Giorgio, Bogdziewicz, Michał, Caignard, Thomas, Celebias, Paulina, van Dormolen, Joep, Fernández-Martínez, Marcos, Moris, Jose V, Palaghianu, Ciprian, Pesendorfer, Mario, Satake, Akiko, Schermer, Eliane, Tanentzap, Andrew J, Thomas, Peter A, Vecchio, Davide, Wion, Andreas, Wohlgemuth, Thomas, Xue, Tingting, Abernethy, Katherine, Daniel Barrera, Marcelo, Barton, Jessica H, Boutin, Stan, Bush, Emma R, Donoso Calderón, Sergio, Carevic, Felipe S, Volkmer de Castilho, Carolina, Manuel Cellini, Juan, Chapman, Colin A, Chapman, Hazel, Chianucci, Francesco, da Costa, Patricia, Croisé, Luc, Cutini, Andrea, Dantzer, Ben, Justin DeRose, R, Thoussaint Dikangadissi, Jean, Dimoto, Edmond, Lopes da Fonseca, Fernanda, Gallo, Leonardo, Gratzer, Georg, Greene, David F, Hadad, Martín A, Huertas Herrera, Alejandro, Jeffery, KJ, Johnstone, Jill F, Kalbitzer, Urs, Kantorowicz, Władysław, Klimas, Christie A, Lageard, Jonathan GA, Lane, Jeffrey, Lapin, Katharina, Ledwon, Mateusz, Leeper, Abigail C, Vanessa Lencinas, Maria, Cláudia Lira-Guedes, Ana, Lordon, Michael C, Marchelli, Paula, Marino, Shealyn, Schmidt Van Marle, Harald, McAdam, Andrew G, Momont, Ludovic RW, Nicolas, Manuel, Helena de Oliveira Wadt, Lúcia, Panahi, Parisa, Martínez Pastur, Guillermo, Patterson, Thomas, Luis Peri, Pablo, Piechnik, Łukasz, Pourhashemi, Mehdi, Espinoza Quezada, Claudia, Roig, Fidel A, Peña Rojas, Karen, Micaela Rosas, Yamina, Schueler, Silvio, Seget, Barbara, Soler, Rosina, Steele, Michael A, Toro-Manríquez, Mónica, Tutin, Caroline EG, Ukizintambara, Tharcisse, White, Lee, Yadok, Biplang, Willis, John L, Zolles, Anita, Żywiec, Magdalena, and Ascoli, Davide

Abstract

Significant gaps remain in understanding the response of plant reproduction to environmental change. This is partly because measuring reproduction in long-lived plants requires direct observation over many years and such datasets have rarely been made publicly available. Here we introduce MASTREE+, a dataset that collates reproductive time-series data from across the globe and makes these data freely available to the community. MASTREE+ includes 73,828 georeferenced observations of annual reproduction (e.g., seed and fruit counts) in perennial plant populations worldwide. These observations consist of 5,971 population-level time-series from 974 species in 66 countries. The mean and median time-series length is 12.4 and 10 years respectively, and the dataset includes 1,122 series that extend over at least two decades (>=20 years of observations). For a subset of well-studied species, MASTREE+ includes extensive replication of time-series across geographical and climatic gradients. Here we describe the open-access dataset, available as a .csv file, and we introduce an associated web-based app for data exploration. MASTREE+ will provide the basis for improved understanding of the response of long-lived plant reproduction to environmental change. Additionally, MASTREE+ will enable investigation of the ecology and evolution of reproductive strategies in perennial plants, and the role of plant reproduction as a driver of ecosystem dynamics.

Published
2022

18. Globally, tree fecundity exceeds productivity gradients

Author

Journé, Valentin, Andrus, Robert, Aravena, Marie-Claire, Ascoli, Davide, Berretti, Roberta, Berveiller, Daniel, Bogdziewicz, Michal, Boivin, Thomas, Bonal, Raul, Caignard, Thomas, Calama, Rafael, Camarero, Jesús Julio, Chang-Yang, Chia-Hao, Courbaud, Benoit, Courbet, Francois, Curt, Thomas, Das, Adrian J, Daskalakou, Evangelia, Davi, Hendrik, Delpierre, Nicolas, Delzon, Sylvain, Dietze, Michael, Donoso Calderon, Sergio, Dormont, Laurent, Maria Espelta, Josep, Fahey, Timothy J, Farfan-Rios, William, Gehring, Catherine A, Gilbert, Gregory S, Gratzer, Georg, Greenberg, Cathryn H, Guo, Qinfeng, Hacket-Pain, Andrew, Hampe, Arndt, Han, Qingmin, Lambers, Janneke Hille Ris, Hoshizaki, Kazuhiko, Ibanez, Ines, Johnstone, Jill F, Kabeya, Daisuke, Kays, Roland, Kitzberger, Thomas, Knops, Johannes MH, Kobe, Richard K, Kunstler, Georges, Lageard, Jonathan GA, LaMontagne, Jalene M, Leininger, Theodor, Limousin, Jean-Marc, Lutz, James A, Macias, Diana, McIntire, Eliot JB, Moore, Christopher M, Moran, Emily, Motta, Renzo, Myers, Jonathan A, Nagel, Thomas A, Noguchi, Kyotaro, Ourcival, Jean-Marc, Parmenter, Robert, Pearse, Ian S, Perez-Ramos, Ignacio M, Piechnik, Lukasz, Poulsen, John, Poulton-Kamakura, Renata, Qiu, Tong, Redmond, Miranda D, Reid, Chantal D, Rodman, Kyle C, Rodriguez-Sanchez, Francisco, Sanguinetti, Javier D, Scher, C Lane, Marle, Harald Schmidt Van, Seget, Barbara, Sharma, Shubhi, Silman, Miles, Steele, Michael A, Stephenson, Nathan L, Straub, Jacob N, Swenson, Jennifer J, Swift, Margaret, Thomas, Peter A, Uriarte, Maria, Vacchiano, Giorgio, Veblen, Thomas T, Whipple, Amy V, Whitham, Thomas G, Wright, Boyd, Wright, S Joseph, Zhu, Kai, Zimmerman, Jess K, Zlotin, Roman, Zywiec, Magdalena, Clark, James S, Journé, Valentin, Andrus, Robert, Aravena, Marie-Claire, Ascoli, Davide, Berretti, Roberta, Berveiller, Daniel, Bogdziewicz, Michal, Boivin, Thomas, Bonal, Raul, Caignard, Thomas, Calama, Rafael, Camarero, Jesús Julio, Chang-Yang, Chia-Hao, Courbaud, Benoit, Courbet, Francois, Curt, Thomas, Das, Adrian J, Daskalakou, Evangelia, Davi, Hendrik, Delpierre, Nicolas, Delzon, Sylvain, Dietze, Michael, Donoso Calderon, Sergio, Dormont, Laurent, Maria Espelta, Josep, Fahey, Timothy J, Farfan-Rios, William, Gehring, Catherine A, Gilbert, Gregory S, Gratzer, Georg, Greenberg, Cathryn H, Guo, Qinfeng, Hacket-Pain, Andrew, Hampe, Arndt, Han, Qingmin, Lambers, Janneke Hille Ris, Hoshizaki, Kazuhiko, Ibanez, Ines, Johnstone, Jill F, Kabeya, Daisuke, Kays, Roland, Kitzberger, Thomas, Knops, Johannes MH, Kobe, Richard K, Kunstler, Georges, Lageard, Jonathan GA, LaMontagne, Jalene M, Leininger, Theodor, Limousin, Jean-Marc, Lutz, James A, Macias, Diana, McIntire, Eliot JB, Moore, Christopher M, Moran, Emily, Motta, Renzo, Myers, Jonathan A, Nagel, Thomas A, Noguchi, Kyotaro, Ourcival, Jean-Marc, Parmenter, Robert, Pearse, Ian S, Perez-Ramos, Ignacio M, Piechnik, Lukasz, Poulsen, John, Poulton-Kamakura, Renata, Qiu, Tong, Redmond, Miranda D, Reid, Chantal D, Rodman, Kyle C, Rodriguez-Sanchez, Francisco, Sanguinetti, Javier D, Scher, C Lane, Marle, Harald Schmidt Van, Seget, Barbara, Sharma, Shubhi, Silman, Miles, Steele, Michael A, Stephenson, Nathan L, Straub, Jacob N, Swenson, Jennifer J, Swift, Margaret, Thomas, Peter A, Uriarte, Maria, Vacchiano, Giorgio, Veblen, Thomas T, Whipple, Amy V, Whitham, Thomas G, Wright, Boyd, Wright, S Joseph, Zhu, Kai, Zimmerman, Jess K, Zlotin, Roman, Zywiec, Magdalena, and Clark, James S

Abstract

Lack of tree fecundity data across climatic gradients precludes the analysis of how seed supply contributes to global variation in forest regeneration and biotic interactions responsible for biodiversity. A global synthesis of raw seedproduction data shows a 250-fold increase in seed abundance from cold-dry to warm-wet climates, driven primarily by a 100-fold increase in seed production for a given tree size. The modest (threefold) increase in forest productivity across the same climate gradient cannot explain the magnitudes of these trends. The increase in seeds per tree can arise from adaptive evolution driven by intense species interactions or from the direct effects of a warm, moist climate on tree fecundity. Either way, the massive differences in seed supply ramify through food webs potentially explaining a disproportionate role for species interactions in the wet tropics.

Published
2022

19. Steps to diversify priority‐setting research in conservation: reflections on de Gracia 2021

Author

Matheus Henrique Nunes, Aiora Zabala, Nibedita Mukherjee, Alexandra Bell, Miriam K. Guth, Sarah H. Luke, Tommaso Jucker, Benno I. Simmons, Tatsuya Amano, Jan Laurens Geffert, Judith Schleicher, Emma Garnett, Hannah S. Mumby, Andrew Hacket-Pain, Tim T. Rademacher, David Christian Rose, Jucker, Tommaso [0000-0002-0751-6312], Mumby, Hannah S [0000-0002-1774-5688], Schleicher, Judith [0000-0001-7817-4295], Zabala, Aiora [0000-0001-8534-3325], Mukherjee, Nibedita [0000-0002-2970-1498], and Apollo - University of Cambridge Repository

Subjects
0106 biological sciences, Conservation of Natural Resources, Priority setting, Ecology, 010604 marine biology & hydrobiology, MEDLINE, Biodiversity, 010603 evolutionary biology, 01 natural sciences, Geography, Environmental planning, Ecosystem, Ecology, Evolution, Behavior and Systematics, Nature and Landscape Conservation
Abstract

There is growing awareness across many branches of science of the need to decolonize research practices and curricula (Aikenhead, 2006; Radcliffe, 2017), and the fields of ecology and conservation are no exception (Baker et al., 2019). Although conservation scientists and practitioners from the Global North are gradually waking up to the fact that local knowledge and agency––including that of Indigenous people––are essential for social justice and to achieving conservation outcomes, the road to decolonizing conservation science remains a long one (Baker et al., 2019). As a discipline, conservation has a long colonial history and remains heavily dominated by institutions in the Global North when it comes to publications, funding, and research networks (Maas et al., 2021).

Published
2021
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20. Globally, tree fecundity exceeds productivity gradients

Author

Journé, Valentin, primary, Andrus, Robert, additional, Aravena, Marie‐Claire, additional, Ascoli, Davide, additional, Berretti, Roberta, additional, Berveiller, Daniel, additional, Bogdziewicz, Michal, additional, Boivin, Thomas, additional, Bonal, Raul, additional, Caignard, Thomas, additional, Calama, Rafael, additional, Camarero, Jesús Julio, additional, Chang‐Yang, Chia‐Hao, additional, Courbaud, Benoit, additional, Courbet, Francois, additional, Curt, Thomas, additional, Das, Adrian J., additional, Daskalakou, Evangelia, additional, Davi, Hendrik, additional, Delpierre, Nicolas, additional, Delzon, Sylvain, additional, Dietze, Michael, additional, Donoso Calderon, Sergio, additional, Dormont, Laurent, additional, Maria Espelta, Josep, additional, Fahey, Timothy J., additional, Farfan‐Rios, William, additional, Gehring, Catherine A., additional, Gilbert, Gregory S., additional, Gratzer, Georg, additional, Greenberg, Cathryn H., additional, Guo, Qinfeng, additional, Hacket‐Pain, Andrew, additional, Hampe, Arndt, additional, Han, Qingmin, additional, Lambers, Janneke Hille Ris, additional, Hoshizaki, Kazuhiko, additional, Ibanez, Ines, additional, Johnstone, Jill F., additional, Kabeya, Daisuke, additional, Kays, Roland, additional, Kitzberger, Thomas, additional, Knops, Johannes M. H., additional, Kobe, Richard K., additional, Kunstler, Georges, additional, Lageard, Jonathan G. A., additional, LaMontagne, Jalene M., additional, Leininger, Theodor, additional, Limousin, Jean‐Marc, additional, Lutz, James A., additional, Macias, Diana, additional, McIntire, Eliot J. B., additional, Moore, Christopher M., additional, Moran, Emily, additional, Motta, Renzo, additional, Myers, Jonathan A., additional, Nagel, Thomas A., additional, Noguchi, Kyotaro, additional, Ourcival, Jean‐Marc, additional, Parmenter, Robert, additional, Pearse, Ian S., additional, Perez‐Ramos, Ignacio M., additional, Piechnik, Lukasz, additional, Poulsen, John, additional, Poulton‐Kamakura, Renata, additional, Qiu, Tong, additional, Redmond, Miranda D., additional, Reid, Chantal D., additional, Rodman, Kyle C., additional, Rodriguez‐Sanchez, Francisco, additional, Sanguinetti, Javier D., additional, Scher, C. Lane, additional, Marle, Harald Schmidt Van, additional, Seget, Barbara, additional, Sharma, Shubhi, additional, Silman, Miles, additional, Steele, Michael A., additional, Stephenson, Nathan L., additional, Straub, Jacob N., additional, Swenson, Jennifer J., additional, Swift, Margaret, additional, Thomas, Peter A., additional, Uriarte, Maria, additional, Vacchiano, Giorgio, additional, Veblen, Thomas T., additional, Whipple, Amy V., additional, Whitham, Thomas G., additional, Wright, Boyd, additional, Wright, S. Joseph, additional, Zhu, Kai, additional, Zimmerman, Jess K., additional, Zlotin, Roman, additional, Zywiec, Magdalena, additional, and Clark, James S., additional

Published
2022
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21. MASTREE+: Time‐series of plant reproductive effort from six continents

Author

Hacket‐Pain, Andrew, primary, Foest, Jessie J., additional, Pearse, Ian S., additional, LaMontagne, Jalene M., additional, Koenig, Walter D., additional, Vacchiano, Giorgio, additional, Bogdziewicz, Michał, additional, Caignard, Thomas, additional, Celebias, Paulina, additional, van Dormolen, Joep, additional, Fernández‐Martínez, Marcos, additional, Moris, Jose V., additional, Palaghianu, Ciprian, additional, Pesendorfer, Mario, additional, Satake, Akiko, additional, Schermer, Eliane, additional, Tanentzap, Andrew J., additional, Thomas, Peter A., additional, Vecchio, Davide, additional, Wion, Andreas P., additional, Wohlgemuth, Thomas, additional, Xue, Tingting, additional, Abernethy, Katharine, additional, Aravena Acuña, Marie‐Claire, additional, Daniel Barrera, Marcelo, additional, Barton, Jessica H., additional, Boutin, Stan, additional, Bush, Emma R., additional, Donoso Calderón, Sergio, additional, Carevic, Felipe S., additional, de Castilho, Carolina Volkmer, additional, Manuel Cellini, Juan, additional, Chapman, Colin A., additional, Chapman, Hazel, additional, Chianucci, Francesco, additional, da Costa, Patricia, additional, Croisé, Luc, additional, Cutini, Andrea, additional, Dantzer, Ben, additional, Justin DeRose, R., additional, Dikangadissi, Jean‐Thoussaint, additional, Dimoto, Edmond, additional, da Fonseca, Fernanda Lopes, additional, Gallo, Leonardo, additional, Gratzer, Georg, additional, Greene, David F., additional, Hadad, Martín A., additional, Herrera, Alejandro Huertas, additional, Jeffery, Kathryn J., additional, Johnstone, Jill F., additional, Kalbitzer, Urs, additional, Kantorowicz, Władysław, additional, Klimas, Christie A., additional, Lageard, Jonathan G. A., additional, Lane, Jeffrey, additional, Lapin, Katharina, additional, Ledwoń, Mateusz, additional, Leeper, Abigail C., additional, Vanessa Lencinas, Maria, additional, Lira‐Guedes, Ana Cláudia, additional, Lordon, Michael C., additional, Marchelli, Paula, additional, Marino, Shealyn, additional, Schmidt Van Marle, Harald, additional, McAdam, Andrew G., additional, Momont, Ludovic R. W., additional, Nicolas, Manuel, additional, de Oliveira Wadt, Lúcia Helena, additional, Panahi, Parisa, additional, Martínez Pastur, Guillermo, additional, Patterson, Thomas, additional, Luis Peri, Pablo, additional, Piechnik, Łukasz, additional, Pourhashemi, Mehdi, additional, Espinoza Quezada, Claudia, additional, Roig, Fidel A., additional, Peña Rojas, Karen, additional, Micaela Rosas, Yamina, additional, Schueler, Silvio, additional, Seget, Barbara, additional, Soler, Rosina, additional, Steele, Michael A., additional, Toro‐Manríquez, Mónica, additional, Tutin, Caroline E. G., additional, Ukizintambara, Tharcisse, additional, White, Lee, additional, Yadok, Biplang, additional, Willis, John L., additional, Zolles, Anita, additional, Żywiec, Magdalena, additional, and Ascoli, Davide, additional

Published
2022
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23. Climate warming causes mast seeding to break down by reducing sensitivity to weather cues

Author

Andrew J. Tanentzap, Michał Bogdziewicz, Andrew Hacket-Pain, Jonathan G.A. Lageard, Dave Kelly, and Peter Thomas

Subjects
0106 biological sciences, 010504 meteorology & atmospheric sciences, Pollination, Population, Synchronous flowering, Climate change, 010603 evolutionary biology, 01 natural sciences, Trees, G1, Fagus, Environmental Chemistry, education, Weather, Beech, 0105 earth and related environmental sciences, General Environmental Science, Global and Planetary Change, education.field_of_study, GE, Ecology, biology, Phenology, Reproduction, Global warming, food and beverages, biology.organism_classification, Seed predation, Seeds, Cues
Abstract

Climate change is altering patterns of seed production worldwide with consequences for population recruitment and migration potential. For the many species that regenerate through synchronized, quasiperiodic reproductive events termed masting, these changes include decreases in the synchrony and interannual variation in seed production. This break-down in the occurrence of masting features harms reproduction by decreasing the efficiency of pollination and increasing seed predation. Changes in masting are often paralleled by warming temperatures, but the underlying proximate mechanisms are unknown. We used a unique 39-year study of 139 European beech (Fagus sylvatica) trees that experienced masting break-down to track the seed developmental cycle and pinpoint phases where weather effects on seed production have changed over time. A cold followed by warm summer led to large coordinated flowering efforts among plants. However, trees failed to respond to the weather signal as summers warmed and the frequency of reproductive cues changed fivefold. Less synchronous flowering resulted in less efficient pollination that further decreased the synchrony of seed maturation. As global temperatures are expected to increase this century, perennial plants that fine-tune their reproductive schedules based on temperature cues may suffer regeneration failures.

Published
2021

24. Steps to diversify priority‐setting research in conservation: reflections on de Gracia 2021

Author

Jucker, Tommaso, primary, Amano, Tatsuya, additional, Bell, Alexandra, additional, Garnett, Emma E., additional, Geffert, Jan Laurens, additional, Guth, Miriam K., additional, Hacket‐Pain, Andrew, additional, Luke, Sarah H., additional, Mumby, Hannah S., additional, Nunes, Matheus, additional, Rademacher, Tim, additional, Rose, David C., additional, Schleicher, Judith, additional, Simmons, Benno I., additional, Zabala, Aiora, additional, and Mukherjee, Nibedita, additional

Published
2021
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26. Climate warming causes mast seeding to break down by reducing sensitivity to weather cues

Author

Bogdziewicz, M, Hacket-Pain, A, Kelly, D, Thomas, PA, Lageard, J, Tanentzap, AJ, Bogdziewicz, M, Hacket-Pain, A, Kelly, D, Thomas, PA, Lageard, J, and Tanentzap, AJ

Abstract

Climate change is altering patterns of seed production worldwide with consequences for population recruitment and migration potential. For the many species that regenerate through synchronized, quasiperiodic reproductive events termed masting, these changes include decreases in the synchrony and interannual variation in seed production. This breakdown in the occurrence of masting features harms reproduction by decreasing the efficiency of pollination and increasing seed predation. Changes in masting are often paralleled by warming temperatures, but the underlying proximate mechanisms are unknown. We used a unique 39-year study of 139 European beech (Fagus sylvatica) trees that experienced masting breakdown to track the seed developmental cycle and pinpoint phases where weather effects on seed production have changed over time. A cold followed by warm summer led to large coordinated flowering efforts among plants. However, trees failed to respond to the weather signal as summers warmed and the frequency of reproductive cues changed fivefold. Less synchronous flowering resulted in less efficient pollination that further decreased the synchrony of seed maturation. As global temperatures are expected to increase this century, perennial plants that fine-tune their reproductive schedules based on temperature cues may suffer regeneration failures.

Published
2021

27. Ten-year assessment of the 100 priority questions for global biodiversity conservation

Author

Charlotte L. R. Payne, Martina Kunz, Miriam K. Guth, Emma Garnett, Hannah S. Mumby, Javier Igea, Matheus Henrique Nunes, Colleen Corrigan, Leslie-Anne Duvic-Paoli, Claire F. R. Wordley, Judith Schleicher, Elizabeth J. Green, Nibedita Mukherjee, Josephine Chambers, Alexandra Bell, Tim Kasoar, William Lynam, Jéssica Fonseca da Silva, Benno I. Simmons, Chloe Orland, Anca Serban, Boris Bongalov, Aiora Zabala, Andrew Hacket-Pain, Eleanor R. Tew, Rebecca J. Robertson, Catherine Tayleur, Victoria Plutshack, Jan Laurens Geffert, Gorm E. Shackelford, Philip A. Martin, Sarah H. Luke, Tatsuya Amano, Nancy Ockendon, Caroline E. Emilson, Amy Hinsley, David Christian Rose, Tim T. Rademacher, Aly Pavitt, Erik J. S. Emilson, Pierre Bocquillon, Tommaso Jucker, Eszter Krasznai Kovács, Bonnie C. Wintle, and América Paz Durán

Subjects
0106 biological sciences, Priority setting, Ecology, business.industry, 010604 marine biology & hydrobiology, Psychological intervention, Biodiversity, Public relations, 010603 evolutionary biology, 01 natural sciences, Proxy (climate), Biodiversity conservation, Fresh water, business, Ecology, Evolution, Behavior and Systematics, Horizon scanning, Nature and Landscape Conservation, Global biodiversity
Abstract

In 2008, a group of conservation scientists compiled a list of 100 priority questions for the conservation of the world's biodiversity. However, now almost a decade later, no one has yet published a study gauging how much progress has been made in addressing these 100 high-priority questions in the peer-reviewed literature. We took a first step toward reexamining the 100 questions to identify key knowledge gaps that remain. Through a combination of a questionnaire and a literature review, we evaluated each question on the basis of 2 criteria: relevance and effort. We defined highly relevant questions as those that - if answered - would have the greatest impact on global biodiversity conservation and quantified effort based on the number of review publications addressing a particular question, which we used as a proxy for research effort. Using this approach, we identified a set of questions that, despite being perceived as highly relevant, have been the focus of relatively few review publications over the past 10 years. These questions covered a broad range of topics but predominantly tackled 3 major themes: conservation and management of freshwater ecosystems, role of societal structures in shaping interactions between people and the environment, and impacts of conservation interventions. We believe these questions represent important knowledge gaps that have received insufficient attention and may need to be prioritized in future research.

Published
2018
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31. From theory to experiments for testing the proximate mechanisms of mast seeding: an agenda for an experimental ecology

Author

Bogdziewicz, Michał, primary, Ascoli, Davide, additional, Hacket‐Pain, Andrew, additional, Koenig, Walter D., additional, Pearse, Ian, additional, Pesendorfer, Mario, additional, Satake, Akiko, additional, Thomas, Peter, additional, Vacchiano, Giorgio, additional, Wohlgemuth, Thomas, additional, and Tanentzap, Andrew, additional

Published
2019
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33. Ten-year assessment of the 100 priority questions for global biodiversity conservation

Author

Jucker, Tomasso, Wintle, Bonnie, Shackelford, Gorm, Bocquillon, Pierre, Geffert, Jan Laurens, Kasaor, Tim, Kovacs, Eszter, Mumby, Hannah S., Orland, Chloé, Schleicher, Judith, Tew, Eleanor R., Zabala, Aiora, Amano, Tatsuya, Bell, Alexandra, Bongalov, Boris, Chambers, Josephine M., Garnett, Emma E., Green, Elizabeth J., Guth, Miriam K., Hacket-Pain, Andrew, Hinsley, Amy, Igea, Javier, Kunz, Martina, Luke, Sarah H., Martin, Philip A., Lynam, William, Nunes, Matheus H., Ockendon, Nancy, Pavitt, Aly, Payne, Charlotte L. R., Plutshack, Victoria, Rademacher, Tim T., Robertson, Rebecca J., Rose, David C., Serban, Anca, Simmons, Benno I., Corrigan, Colleen, Emilson, Erik J. S., Tayleur, Catherine, Wordley, Claire F. R., Mukherjee, Nibedita, Durán, Améica P., Duvic-Paoli, Leslie-Anne, Emilson, Caroline, and Fonseca da Silva, Jéssica

Abstract

In 2008, a group of conservation scientists compiled a list of 100 priority questions for the conservation of the world's biodiversity ?Sutherland et al. (2009) Conservation Biology, 23, 557?567?. However, now almost a decade later, no one has yet published a study gauging how much progress has been made in addressing these 100 high?priority questions in the peer?reviewed literature. Here we take a first step toward re?examining the 100 questions and identify key knowledge gaps that still remain. Through a combination of a questionnaire and a literature review, we evaluated each of the 100 questions on the basis of two criteria: relevance and effort. We defined highly?relevant questions as those which ? if answered ? would have the greatest impact on global biodiversity conservation, while effort was quantified based on the number of review publications addressing a particular question, which we used as a proxy for research effort. Using this approach we identified a set of questions that, despite being perceived as highly relevant, have been the focus of relatively few review publications over the past ten years. These questions covered a broad range of topics but predominantly tackled three major themes: the conservation and management of freshwater ecosystems, the role of societal structures in shaping interactions between people and the environment, and the impacts of conservation interventions. We see these questions as important knowledge gaps that have so far received insufficient attention and may need to be prioritised in future research.

Published
2018

34. Climatically controlled reproduction drives interannual growth variability in a temperate tree species

Author

Hacket-Pain, Andrew J., Ascoli, Davide, Vacchiano, Giorgio, Biondi, Franco, Cavin, Liam, Conedera, Marco, Drobyshev, Igor, Liñán, Isabel Dorado, Friend, Andrew D., Grabner, Michael, Hartl, Claudia, Kreyling, Juergen, Lebourgeois, François, Levanič, Tom, Menzel, Annette, van der Maaten, Ernst, van der Maaten-Theunissen, Marieke, Muffler, Lena, Motta, Renzo, Roibu, Catalin-Constantin, Popa, Ionel, Scharnweber, Tobias, Weigel, Robert, Wilmking, Martin, and Zang, Christian S.

Subjects
ddc
Published
2018

35. Climatically controlled reproduction drives interannual growth variability in a temperate tree species

Author

Hacket‐Pain, Andrew J., primary, Ascoli, Davide, additional, Vacchiano, Giorgio, additional, Biondi, Franco, additional, Cavin, Liam, additional, Conedera, Marco, additional, Drobyshev, Igor, additional, Liñán, Isabel Dorado, additional, Friend, Andrew D., additional, Grabner, Michael, additional, Hartl, Claudia, additional, Kreyling, Juergen, additional, Lebourgeois, François, additional, Levanič, Tom, additional, Menzel, Annette, additional, van der Maaten, Ernst, additional, van der Maaten‐Theunissen, Marieke, additional, Muffler, Lena, additional, Motta, Renzo, additional, Roibu, Catalin‐Constantin, additional, Popa, Ionel, additional, Scharnweber, Tobias, additional, Weigel, Robert, additional, Wilmking, Martin, additional, and Zang, Christian S., additional

Published
2018
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36. Two centuries of masting data for European beech and Norway spruce across the European continent

Author

Marco Conedera, Peter Thomas, Burkhard Beudert, Davide Ascoli, Marjana Westergren, Renzo Motta, Giorgio Vacchiano, Luc Croisé, Silvio Schueler, Rolf Övergaard, Igor Drobyshev, Anton Burkart, Christian Zang, Mara Cirolli, Pietro Piussi, Ciprian Palaghianu, Janet Maringer, Władysław Kantorowicz, Jonathan G.A. Lageard, Andrew Hacket-Pain, Regula Gehrig Bichsel, Roberta Berretti, Apollo - University of Cambridge Repository, Ascoli, Davide, Maringer, Janet, Hacket Pain, Andy, Conedera, Marco, Drobyshev, Igor, Motta, Renzo, Cirolli, Mara, Kantorowicz, Władysław, Zang, Christian, Schueler, Silvio, Croisé, Luc, Piussi, Pietro, Berretti, Roberta, Palaghianu, Ciprian, Westergren, Marjana, Lageard, Jonathan G. A, Burkart, Anton, Bichsel, Regula Gehrig, Thomas, Peter A, Beudert, Burkhard, Övergaard, Rolf, and Vacchiano, Giorgio

Subjects
0106 biological sciences, Ordinal data, Forests, 010603 evolutionary biology, 01 natural sciences, Population density, Trees, Ecosystem services, reproduction, Fagus sylvatica, Fagus, Picea, Temporal scales, SB, Beech, Ecology, Evolution, Behavior and Systematics, SD, biology, Norway, Ecology, QK, synchrony, mast seeding, Picea abies, fructification, biology.organism_classification, Europe, Geography, pollen, tree regeneration, Evolutionary ecology, mast fruiting, 010606 plant biology & botany
Abstract

Tree masting is one of the most intensively studied ecological processes. It affects nutrient fluxes of trees, regeneration dynamics in forests, animal population densities, and ultimately influences ecosystem services. Despite a large volume of research focused on masting, its evolutionary ecology, spatial and temporal variability and environmental drivers are still matter of debate. Understanding the proximate and ultimate causes of masting at broad spatial and temporal scales will enable us to predict tree reproductive strategies and their response to changing environment. Here we provide broad spatial (distribution range-wide) and temporal (century) masting data for the two main masting tree species in Europe, European beech (Fagus sylvatica L.) and Norway spruce (Picea abies (L.) H. Karst.). We collected masting data from a total of 359 sources through an extensive literature review and from unpublished surveys. The dataset has a total of 1747 series and 18348 yearly observations from 28 countries and covering a time span of years 1677-2016 and 1791-2016 for beech and spruce, respectively. For each record, the following information is available: identification code; species; year of observation; proxy of masting (flower, pollen, fruit, seed, dendrochronological reconstructions); statistical data type (ordinal, continuous); data value; unit of measurement (only in case of continuous data); geographical location (country, Nomenclature of Units for Territorial Statistics NUTS-1 level, municipality, coordinates); first and last record year and related length; type of data source (field survey, peer reviewed scientific literature, grey literature, personal observation); source identification code; date when data were added to the database; comments. To provide a ready-to-use masting index we harmonized ordinal data into five classes. Furthermore, we computed an additional field where continuous series with length >4 years where converted into a five classes ordinal index. To our knowledge, this is the most comprehensive published database on species-specific masting behaviour. It is useful to study spatial and temporal patterns of masting and its proximate and ultimate causes, to refine studies based on tree-ring chronologies, to understand dynamics of animal species and pests vectored by these animals affecting human health, and it may serve as calibration-validation data for dynamic forest models. This article is protected by copyright. All rights reserved.

Published
2017
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38. Two centuries of masting data for European beech and Norway spruce across the European continent

Author

Ascoli, Davide, primary, Maringer, Janet, additional, Hacket-Pain, Andy, additional, Conedera, Marco, additional, Drobyshev, Igor, additional, Motta, Renzo, additional, Cirolli, Mara, additional, Kantorowicz, Władysław, additional, Zang, Christian, additional, Schueler, Silvio, additional, Croisé, Luc, additional, Piussi, Pietro, additional, Berretti, Roberta, additional, Palaghianu, Ciprian, additional, Westergren, Marjana, additional, Lageard, Jonathan G. A., additional, Burkart, Anton, additional, Gehrig Bichsel, Regula, additional, Thomas, Peter A., additional, Beudert, Burkhard, additional, Övergaard, Rolf, additional, and Vacchiano, Giorgio, additional

Published
2017
Full Text
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39. Climatically controlled reproduction drives interannual growth variability in a temperate tree species

Author

Hacket-Pain, Andrew J, Ascoli, Davide, Vacchiano, Giorgio, Biondi, Franco, Cavin, Liam, Conedera, Marco, Drobyshev, Igor, Liñán, Isabel Dorado, Friend, Andrew D, Grabner, Michael, Hartl, Claudia, Kreyling, Juergen, Lebourgeois, François, Levanič, Tom, Menzel, Annette, Van Der Maaten, Ernst, Van Der Maaten-Theunissen, Marieke, Muffler, Lena, Motta, Renzo, Roibu, Catalin-Constantin, Popa, Ionel, Scharnweber, Tobias, Weigel, Robert, Wilmking, Martin, and Zang, Christian S

Subjects
Dendrochronology, Fagus sylvatica, Climate Change, Reproduction, drought, 15. Life on land, structural equation modelling, Forests, masting, European beech, Trees, 13. Climate action, SEM, forest growth, Fagus, path analysis, FOS: Medical biotechnology, trade-off
Abstract

Climatically controlled allocation to reproduction is a key mechanism by which climate influences tree growth and may explain lagged correlations between climate and growth. We used continent-wide datasets of tree-ring chronologies and annual reproductive effort in Fagus sylvatica from 1901 to 2015 to characterise relationships between climate, reproduction and growth. Results highlight that variable allocation to reproduction is a key factor for growth in this species, and that high reproductive effort ('mast years') is associated with stem growth reduction. Additionally, high reproductive effort is associated with previous summer temperature, creating lagged climate effects on growth. Consequently, understanding growth variability in forest ecosystems requires the incorporation of reproduction, which can be highly variable. Our results suggest that future response of growth dynamics to climate change in this species will be strongly influenced by the response of reproduction.

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