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5 results on '"Runnel, Kadri"'

1. Diversity of forest structures important for biodiversity is determined by the combined effects of productivity, stand age, and management.

Author

Hämäläinen A, Runnel K, Ranius T, and Strengbom J

Subjects
Biodiversity, Sweden, Ecosystem, Forests, Trees
Abstract

In forests, the amount and diversity of structural features with high value for biodiversity, such as large trees and dead wood, are affected by productivity, stand age, and forest management. For efficient conservation of forest biodiversity, it is essential to understand the combined effects of these drivers. We used data from the Swedish National Forest Inventory to study the combined effects of productivity, stand age, and management for wood production on structures with high value for biodiversity: tree species richness, large living trees, dead wood volume, and specific dead wood types. Forest management changed the relationship between productivity and amount or diversity of some of the structures. Most structures increased with productivity and stand age, but decreased due to management. The negative effect of management was greatest for structures occurring mainly in high-productivity forests, such as deciduous dead wood. Thus, biodiversity conservation should target high-productivity forests to preserve these structures., (© 2024. The Author(s).)

Published
2024
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2. Short-term responses of the soil microbiome and its environment indicate an uncertain future of restored peatland forests.

Author

Runnel K, Tamm H, Kohv M, Pent M, Vellak K, Lodjak J, and Lõhmus A

Subjects
Uncertainty, Trees, Soil, Forests, Microbiota
Abstract

Restoring peatland ecosystems involves significant uncertainty due to complex ecological and socio-economic feedbacks as well as alternative stable ecological states. The primary aim of this study was to investigate to what extent the natural functioning of drainage-affected peat soils can be restored, and to examine role of soil microbiota in this recovery process. To address these questions, a large-scale before-after-control-impact (BACI) experiment was conducted in drained peatland forests in Estonia. The restoration treatments included ditch closure and partial tree cutting to raise the water table and restore stand structure. Soil samples and environmental data were collected before and 3-4 years after the treatments; the samples were subjected to metabarcoding to assess fungal and bacterial communities and analysed for their chemical properties. The study revealed some indicators of a shift toward the reference state (natural mixotrophic bog-forests): the spatial heterogeneity in soil fungi and bacteria increased, as well as the relative abundance of saprotrophic fungi; while nitrogen content in the soil decreased significantly. However, a general stability of other physico-chemical properties (including pH remaining elevated by ca. one unit) and annual fluctuations in the microbiome suggested that soil recovery will remain incomplete and patchy for decades. The main implication is the necessity to manage hydrologically restored peatland forests while explicitly considering an uncertain future and diverse outcomes. This includes their continuous monitoring and the adoption of a precautionary approach to prevent further damage both to these ecosystems and to surrounding intact peatlands., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier Ltd. All rights reserved.)

Published
2023
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3. Fungal targets and tools for forest conservation

Author

Runnel, Kadri, Lõhmus, Asko, juhendaja, Põldmaa, Kadri, juhendaja, and Tartu Ülikool. Loodus- ja täppisteaduste valdkond.

Subjects
forests, dissertations, looduskaitse, dissertatsioonid, Fungi, ETD, bioloogiline mitmekesisus, nature preservation, seened, väitekirjad, metsakõdu, forest decay, metsad, biodiversity
Abstract

Väitekirja elektrooniline versioon ei sisalda publikatsioone., Mets on seentele oluline elupaik – ning seened täidavad metsaökosüsteemis olulisi funktsioone. Valdav osa metsi on tänapäeval inimmõju tõttu vaesunud, näiteks on neis mitmekordselt vähenenud kõdupuidu ja põlispuude hulk. Niisuguseid «jäänukstruktuure» asustavad aga mitmed metsaseened; neid seeni minu doktoritöö käsitleski. Põhifookus oli metsas lagundajatena olulistel torikseentel, kuid uurisin ka puukoorel ja paljandunud puidul elavaid lihheniseerunud seeni. Peale selle, et mitmed neist seentest on ohustatud ja kaitse all, kasutatakse neid looduskaitses ka indikaatoritena teiste metsaväärtuste tuvastamisel. Töö põhieesmärgiks oli hinnata erinevate kasutatavate metsakaitse ja –majandusmeetodite olulisust seeneliikide kaitsel. Torikseente uurimisel olid põhimeetodiks viljakehadel põhinevad liigi-inventuurid. Leidsin, et puistu mastaabis on see adekvaatne meetod, sest ehkki puiduproovidest määratud DNA põhjal võivad konkreetses puutüves mütseelina elavad seened viljakehana tuvastamata jääda, on suur tõenäolisus leida sama liigi viljakeha mõnelt teiselt puutüvelt läheduses. Võrreldes torikseente levikumustreid põlismetsades, küpsetes majandusmetsades ja raiesmikel leidsin, et erinevalt Fennoskandiast, kus majandusmetsad on ulatuslikult vaesunud, ei olene Eestis enamik liike otseselt põlismetsadest. Seega lähtuvad liigi elupaigaseosed ja indikaatorväärtus piirkonna metsamaastiku üldseisundist. Üksikute liikide koondumine põlismetsa oli põhiliselt tingitud spetsiifilisest substraadivajadusest (nt suured lamakuused). Selgus ka, et liigi elupaigaseoste mõistmist võivad segada «krüptilised liigid»: sarnase välimuse taha peituvad erineva ökoloogiaga liigid, mida tuleks seente puhul tuvastada molekulaarselt. Rohkete indikaatorliikide asemel tuleks seetõttu lähtuda pigem vähestest hästi uuritud suunisliikidest. Doktoritöö näitas, et enamik kõdupuitu ja põlispuid asustavaid seeni (sh mitmed põlismetsaseoseliseks peetud liigid) saavad elada ka majandusmetsades, kui need on piisavalt vanad, seal leidub erinevaid puuliike ning piisavalt erinevaid jäänukstruktuure, sh nii erinevate puuliikide tüügas- ja lamapuid kui põlispuid. Seetõttu leidub metsamajanduse ning seente elurikkuse edukaks kombineerimiseks mitmeid võimalusi., Forests provide habitat for a huge variety of fungi that, in turn, play key roles in several forest ecosystem processes. The fungal biota is increasingly affected by human-caused transformation of forests, i.a., significant declines in the amount of coarse dead wood and large old trees. My thesis concentrates on fungi inhabiting such structures. My main focus is on polypores that belong to the dominant dead-wood composers in the forests, but I also explore lichenised fungi. Many polypores and lichens are nowadays found mainly in the remaining old-forest patches, and the occurrence of several species is thought to indicate ecological value of a forest. My general aim was to assess the forest conservation and management practices from the perspective of the fungi inhabiting dead wood and old living trees. The main method in polypore studies was fruit-body based species-inventory. In the stand scale, I found this method efficient: while all polypore species inhabiting a tree-trunk (as revealed by their DNA in the wood samples) may not produce fruit-body on the same tree, conspecific fruit-bodies can be usually found on other trunks in close vicinity. Differently from the intensively managed Fennoscandia, the old-forest associations of polypores were relatively weak in Estonia, as revealed by a comparison of old-growth, mature managed and harvested forests. Thus, fungal habitat associations and indicator value depend on regional landscape context. For the few species that were confined to old -growths, specific substrate requirements (notably large spruce trunks) were the reason. I also show that interpreting species habitat associations may me confused by “cryptic species” that have similar morphology, but differ by genetics and ecology. Thus, conservation practices might benefit from fewer, but better supported, fungal indicators. I demonstrate that fungi inhabiting dead wood and old living trees (including putative old-forest specialists) may form species-rich assemblages also in managed forests. This is possible if these forests are diverse in terms of tree species, dead-wood structures, and successional stages, including old stands. My general conclusion is that there are many possibilities for adjusting forest management to better address the fungal diversity that depends on dead wood and old living trees.

Published
2016
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4. A simple survey protocol for assessing terrestrial biodiversity in a broad range of ecosystems.

Author

Lõhmus, Asko, Lõhmus, Piret, and Runnel, Kadri

Subjects
BIODIVERSITY, TROPICAL forests, ENVIRONMENTAL monitoring, ENVIRONMENTAL protection, SPECIES diversity
Abstract

Finding standard cost-effective methods for monitoring biodiversity is challenging due to trade-offs between survey costs (including expertise), specificity, and range of applicability. These trade-offs cause a lack of comparability among datasets collected by ecologists and conservationists, which is most regrettable in taxonomically demanding work on megadiverse inconspicuous taxon groups. We have developed a site-scale survey method for diverse sessile land organisms, which can be analyzed over multiple scales and linked with ecological insights and management. The core idea is that field experts can effectively allocate observation effort when the time, area, and priority sequence of tasks are fixed. We present the protocol, explain its specifications (taxon group; expert qualification; plot size; effort) and applications based on >800 original surveys of four taxon groups; and we analyze its effectiveness using data on polypores in hemiboreal and tropical forests. We demonstrate consistent effort-species richness curves and among-survey variation in contrasting ecosystems, and high effectiveness compared with casual observations both at local and regional scales. Bias related to observer experience appeared negligible compared with typical assemblage variation. Being flexible in terms of sampling design, the method has enabled us to compile data from various projects to assess conservation status and habitat requirements of most species (specifically rarities and including discovery of new species); also, when linked with site descriptions, to complete environmental assessments and select indicator species for management. We conclude that simple rules can significantly improve expert-based biodiversity surveys. Ideally, define (i) a common plot size that addresses multiple taxon groups and management goals; (ii) taxon groups based on field expertise and feasible number of species; (iii) sufficient and practical search time; (iv) a procedure for recording within-plot heterogeneity. Such a framework, combined with freedom to allocate effort on-site, helps utilizing full expertise of observers without losing technical rigor. [ABSTRACT FROM AUTHOR]

Published
2018
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5. Global patterns in endemicity and vulnerability of soil fungi

Author

Leho Tedersoo, Vladimir Mikryukov, Alexander Zizka, Mohammad Bahram, Niloufar Hagh‐Doust, Sten Anslan, Oleh Prylutskyi, Manuel Delgado‐Baquerizo, Fernando T. Maestre, Jaan Pärn, Maarja Öpik, Mari Moora, Martin Zobel, Mikk Espenberg, Ülo Mander, Abdul Nasir Khalid, Adriana Corrales, Ahto Agan, Aída‐M. Vasco‐Palacios, Alessandro Saitta, Andrea C. Rinaldi, Annemieke Verbeken, Bobby P. Sulistyo, Boris Tamgnoue, Brendan Furneaux, Camila Duarte Ritter, Casper Nyamukondiwa, Cathy Sharp, César Marín, Daniyal Gohar, Darta Klavina, Dipon Sharmah, Dong Qin Dai, Eduardo Nouhra, Elisabeth Machteld Biersma, Elisabeth Rähn, Erin K. Cameron, Eske De Crop, Eveli Otsing, Evgeny A. Davydov, Felipe E. Albornoz, Francis Q. Brearley, Franz Buegger, Geoffrey Zahn, Gregory Bonito, Inga Hiiesalu, Isabel C. Barrio, Jacob Heilmann‐Clausen, Jelena Ankuda, John Y. Kupagme, Jose G. Maciá‐Vicente, Joseph Djeugap Fovo, József Geml, Juha M. Alatalo, Julieta Alvarez‐Manjarrez, Kadri Põldmaa, Kadri Runnel, Kalev Adamson, Kari Anne Bråthen, Karin Pritsch, Kassim I. Tchan, Kęstutis Armolaitis, Kevin D. Hyde, Kevin K. Newsham, Kristel Panksep, Adebola A. Lateef, Liis Tiirmann, Linda Hansson, Louis J. Lamit, Malka Saba, Maria Tuomi, Marieka Gryzenhout, Marijn Bauters, Meike Piepenbring, Nalin Wijayawardene, Nourou S. Yorou, Olavi Kurina, Peter E. Mortimer, Peter Meidl, Petr Kohout, Rolf Henrik Nilsson, Rasmus Puusepp, Rein Drenkhan, Roberto Garibay‐Orijel, Roberto Godoy, Saad Alkahtani, Saleh Rahimlou, Sergey V. Dudov, Sergei Põlme, Soumya Ghosh, Sunil Mundra, Talaat Ahmed, Tarquin Netherway, Terry W. Henkel, Tomas Roslin, Vincent Nteziryayo, Vladimir E. Fedosov, Vladimir G. Onipchenko, W. A. Erandi Yasanthika, Young Woon Lim, Nadejda A. Soudzilovskaia, Alexandre Antonelli, Urmas Kõljalg, Kessy Abarenkov, Universidad de Alicante. Departamento de Ecología, Universidad de Alicante. Instituto Multidisciplinar para el Estudio del Medio 'Ramón Margalef', Laboratorio de Ecología de Zonas Áridas y Cambio Global (DRYLAB), Estonian Science Foundation, Novo Nordisk Foundation, Tedersoo, Leho, Zizka, Alexander, Hagh-Doust, Niloufar, Anslan, Sten, Prylutskyi. Oleh, Delgado-Baquerizo, Manuel, Maestre, Fernando T., Moora, Mari, Zobel, Martin, Espenberg, Mikk, Mander, Ülo, Khalid, Abdul Nasir, Corrales, Adriana, Agan, Ahto, Vasco-Palacios, Aída-M., Saitta, A., Sulistyo, Bobby P., Furneaux, Brendan, Duarte Ritter, Camila, Nyamukondiwa, Casper, Marín, César, Gohar, Daniyal, Klavina, Darta, Dai, Dong Qin, Machteld Biersma, Elisabeth, Otsing. Eveli, Davydov, Evgeniy A., Albornoz, Felipe E., Buegger, Franz, Zahn, Geoffrey, Bonito, Gregory, Hiiesalu, Inga, Barrio, Isabel C., Heilmann-Clausen, Jacob, Kupagme, John Y., Maciá-Vicente, Jose G., Geml, József, Alatalo, Juha M., Álvarez-Manjarrez, Julieta, Põldmaa, Kadri, Runnel, Kadrid, Bråthen, Kari Anne, Pritsch, Karin, Armolaitis, Kęstutis, Panksep, Kristel, Lateef, Adebola A., Saba, M., Tuomi, Maria W., Gryzenhout, M., Bauters, Marijn, Wijayawardene, Nalin N., Yorou, Nourou S., Kurina, Olavi, Kohout, Petr, Nilsson, R. H., Garibay-Orijel, Roberto, Rahimlou, Saleh, Ghosh, Soumya, Mundra, Sunil, Netherway, Tarquin, Henkel, Terry W., Roslin, Tomas, Fedosov, V., Lim, Young Woon, Antonelli, Alexandre, Koljalg, Urmas, Abarenkov, K., Soudzilovskaia, Nadejda A., Alvarez-Manjarrez, Julieta/0000-0002-5581-7443, Espenberg, Mikk/0000-0003-0469-6394, Marin, Cesar/0000-0002-2529-8929, Mikryukov, Vladimir, Bahram, Mohammad, Prylutskyi, Oleh, Parn, Jaan, Opik, Maarja, Mander, Ulo, Vasco-Palacios, Aida-M, Saitta, Alessandro, Rinaldi, Andrea C., Verbeken, Annemieke, Tamgnoue, Boris, Ritter, Camila Duarte, Sharp, Cathy, Marin, Cesar, Sharmah, Dipon, Nouhra, Eduardo, Biersma, Elisabeth Machteld, Rahn, Elisabeth, Cameron, Erin K., De Crop, Eske, Otsing, Eveli, Davydov, Evgeny A., Brearley, Francis Q., Ankuda, Jelena, Macia-Vicente, Jose G., Fovo, Joseph Djeugap, Geml, Jozsef, Alvarez-Manjarrez, Julieta, Poldmaa, Kadri, Runnel, Kadri, Adamson, Kalev, Brathen, Kari Anne, Tchan, Kassim, I, Hyde, Kevin D., Newsham, Kevin K., Tiirmann, Liis, Hansson, Linda, Lamit, Louis J., Saba, Malka, Tuomi, Maria, Gryzenhout, Marieka, Piepenbring, Meike, Wijayawardene, Nalin, Mortimer, Peter E., Meidl, Peter, Nilsson, Rolf Henrik, Puusepp, Rasmus, Drenkhan, Rein, Godoy, Roberto, Alkahtani, Saad, Dudov, Sergey, V, Polme, Sergei, Ahmed , Talaat, Nteziryayo, Vincent, Fedosov, Vladimir E., Onipchenko, Vladimir G., Yasanthika, W. A. Erandi, SOUDZILOVSKAIA, Nadia, Abarenkov, Kessy, Tedersoo, Leho [0000-0002-1635-1249], Zizka, Alexander [0000-0002-1680-9192, Hagh-Doust, Niloufar [0000-0003-0616-5829], Anslan, Sten [0000-0002-2299-454X], Prylutskyi. Oleh [0000-0001-5730-517X], Delgado-Baquerizo, Manuel [0000-0002-6499-576X], Maestre, Fernando T. [0000-0002-7434-4856], Moora, Mari [0000-0002-4819-7506], Zobel, Martin [0000-0001-7957-6704], Espenberg, Mikk [0000-0003-0469-6394], Mander, Ülo [Mander, Ülo], Khalid, Abdul Nasir [0000-0002-5635-8031], Corrales, Adriana [0000-0001-9885-4634], Agan, Ahto [0000-0001-9010-8944], Vasco-Palacios, Aída-M. [0000-0003-0539-9711], Saitta, A. [0000-0002-5670-7780], Sulistyo, Bobby P. [0000-0002-5203-4822], Furneaux, Brendan [0000-0003-3522-7363], Duarte Ritter, Camila [0000-0002-3371-7425], Nyamukondiwa, Casper [0000-0002-0395-4980], Marín, César [0000-0002-2529-8929], Gohar, Daniyal [0000-0003-0312-1142], Klavina, Darta [0000-0002-1455-9062], Dai, Dong Qin [0000-0001-8935-8807], Machteld Biersma, Elisabeth [0000-0002-9877-2177], Otsing. Eveli [0000-0001-7416-257X], Davydov, Evgeniy A. [0000-0002-2316-8506], Albornoz, Felipe E. [0000-0001-9526-0945], Buegger, Franz [0000-0003-3526-4711], Zahn, Geoffrey []0000-0002-8691-692X, Bonito, Gregory [0000-0002-7262-8978], Hiiesalu, Inga [0000-0002-5457-2376], Barrio, Isabel C. [0000-0002-8120-5248], Heilmann-Clausen, Jacob [0000-0003-4713-6004], Kupagme, John Y. [0000-0002-9981-050X], Maciá-Vicente, Jose G. [0000-0002-7174-7270], Geml, József [0000-0001-8745-0423], Alatalo, Juha M. [0000-0001-5084-850X], Álvarez-Manjarrez, Julieta [0000-0002-5581-7443], Põldmaa, Kadri [0000-0002-7936-2455], Runnel, Kadrid [0000-0002-7308-3623], Bråthen, Kari Anne [0000-0003-0942-1074], Pritsch, Karin [0000-0001-6384-2473], Armolaitis, Kęstutis [0000-0001-8295-2440], Panksep, Kristel [0000-0003-4743-6111], Lateef, Adebola A. [0000-0002-0510-7996], Saba, M. [0000-0001-7673-2345], Tuomi, Maria W. [0000-0002-7154-5177], Gryzenhout, M. [0000-0002-9224-4277], Bauters, Marijn [0000-0003-0978-6639], Wijayawardene, Nalin N. [0000-0003-0522-5498], Yorou, Nourou S. [0000-0001-6997-811X], Kurina, Olavi [0000-0002-4858-4629], Kohout, Petr [0000-0002-3985-2310], Nilsson, R. H. [0000-0002-8052-0107], Garibay-Orijel, Roberto [0000-0002-6977-7550], Rahimlou, Saleh [0000-0003-0427-1329], Ghosh, Soumya [0000-0002-4945-3516], Mundra, Sunil [0000-0002-0535-118X], Netherway, Tarquin [0000-0002-9049-9225], Henkel, Terry W. [0000-0001-9760-8837], Roslin, Tomas [0000-0002-2957-4791], Fedosov, V. [0000-0002-5331-6346], Lim, Young Woon [0000-0003-2864-3449], Antonelli, Alexandre [0000-0003-1842-9297], Koljalg, Urmas [0000-0002-5171-1668], and Abarenkov, K. [0000-0001-5526-4845

Subjects
DIVERSITY, Plant Ecology and Nature Conservation, Forests, conservation priorities, Soil, Mycorrhizae, Biodiversity, Biogeography, Climate Change, Conservation Priorities, Global Change Vulnerability, Global Maps, Mycorrhizal Fungi, Pathogens, Saprotrophs, global change vulnerability, global maps, mycorrhizal fungi, pathogens, Animals, Humans, Environmental Chemistry, MICROBIAL COMMUNITIES, ADAPTATION, saprotrophs, TEMPERATURE, Ecosystem, Soil Microbiology, biogeography, General Environmental Science, biodiversity, Ekologi, Global and Planetary Change, Ecology, ECTOMYCORRHIZAL FUNGI, SPECIES RICHNESS, Fungi, Biology and Life Sciences, CLIMATE-CHANGE MITIGATION, Plants, Environmental Sciences related to Agriculture and Land-use, climate change, Earth and Environmental Sciences, BACTERIA, Plantenecologie en Natuurbeheer, COMMUNITIES
Abstract

15 páginas.- 6 figuras.- 93 referencias, Fungi are highly diverse organisms, which provide multiple ecosystem services. However, compared with charismatic animals and plants, the distribution patterns and conservation needs of fungi have been little explored. Here, we examined endemicity patterns, global change vulnerability and conservation priority areas for functional groups of soil fungi based on six global surveys using a high-resolution, long-read metabarcoding approach. We found that the endemicity of all fungi and most functional groups peaks in tropical habitats, including Amazonia, Yucatan, West-Central Africa, Sri Lanka, and New Caledonia, with a negligible island effect compared with plants and animals. We also found that fungi are predominantly vulnerable to drought, heat and land-cover change, particularly in dry tropical regions with high human population density. Fungal conservation areas of highest priority include herbaceous wetlands, tropical forests, and woodlands. We stress that more attention should be focused on the conservation of fungi, especially root symbiotic arbuscular mycorrhizal and ectomycorrhizal fungi in tropical regions as well as unicellular early-diverging groups and macrofungi in general. Given the low overlap between the endemicity of fungi and macroorganisms, but high conservation needs in both groups, detailed analyses on distribution and conservation requirements are warranted for other microorganisms and soil organisms., The bulk of the funding is derived from the Estonian Science Foundation (grants PRG632, PRG1170, PRG1615, MOBTP198), EEA Financial Mechanism Baltic Research Programme (EMP442), and Novo Nordisk Fonden (NNF20OC0059948).

Published
2022

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