Communities of wood‐inhabiting bryophytes and fungi on dead beech logs in Europe – reflecting substrate quality or shaped by climate and forest conditions?
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- Jacob Heilmann‐Clausen
- Center for Macroecology, Evolution and Climate Biological Institute University of Copenhagen Universitetsparken 15 DK‐2100 Copenhagen Denmark
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- Erik Aude
- HabitatVision A/S DK‐8410 Rønde Denmark
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- Klaas van Dort
- Forestfun NL‐6708 LN Wageningen The Netherlands
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- Morten Christensen
- Morten Christensen Consult 4180 Sorø Denmark
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- Andrej Piltaver
- Institute for Systematic of Higher Fungi SI‐1000 Ljubljana Slovenia
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- Mirjam Veerkamp
- NL‐3985RZ Werkhoven The Netherlands
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- Irén Siller
- Institute for Biology Faculty of Veterinary Science Szent István University H‐1400 Budapest Hungary
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- Tibor Standovár
- Department of Plant Systematics, Ecology and Theoretical Biology Eötvös University H‐1117 Budapest Hungary
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- Péter Òdor
- MTA Centre for Ecological Research Institute of Ecology and Botany H‐2163 Vácrátót Hungary
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- Peter Linder
- editor
説明
<jats:title>Abstract</jats:title><jats:sec><jats:title>Aim</jats:title><jats:p>Fungi are drivers of wood decay in forested ecosystem, while bryophytes use dead wood as a platform for their autotrophic lifestyle. We tested the hypothesis that fungal communities on beech logs are mainly structured by substrate quality, while bryophyte communities are structured by climatic gradients. In addition, we tested whether community structure in both organism groups is altered along a gradient from nearly pristine forest to forests heavily affected by management and human disturbance in the past.</jats:p></jats:sec><jats:sec><jats:title>Location</jats:title><jats:p>Europe.</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>We surveyed 1207 fallen beech logs in 26 of the best‐preserved forest stands across six European countries, representing a gradient in overall naturalness of the forest landscape. Recorded species were classified into ecological guilds. Indirect ordination and variation partitioning was used to analyse the relationship between species composition and environmental variables, recorded at log or site level.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>In total, 10,367 bryophyte and 15,575 fungal records were made, representing 157 and 272 species, respectively. Fungal communities were more clearly structured by substrate quality than were bryophyte communities. In both groups a distinct turnover in species composition was evident along a longitudinal gradient from Central to Western Europe. Fungi specialized in trunk rot and specialized epixylic bryophytes were scarcely represented in Atlantic regions, and partly replaced by species belonging to less specialized guilds. Variables related to climate and forest conditions were confounded along this main geographical gradient in community composition.</jats:p></jats:sec><jats:sec><jats:title>Main conclusions</jats:title><jats:p>We found that bryophyte and fungal communities co‐occurring on fallen beech logs in European beech forest reserves differed in their responses to biogeographical drivers and local‐scale habitat filters. Both groups responded to major gradients in climate and forest conditions, but the loss of specialist guilds in degraded forest landscapes points to a functionally important effect of forest landscape degradation at the European continental scale.</jats:p></jats:sec>
収録刊行物
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- Journal of Biogeography
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Journal of Biogeography 41 (12), 2269-2282, 2014-08-19
Wiley