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Do the rich get richer? Varying effects of tree species identity and diversity on the richness of understory taxa
J. Chamagne, CET. Paine, DR. Schoolmaster, R. Stejskal, D. Volarřík, J. Šebesta, F. Trnka, T. Koutecký, P. Švarc, M. Svátek, A. Hector, R. Matula,
Language English Country United States
Document type Journal Article
PubMed
27859088
DOI
10.1002/ecy.1479
Knihovny.cz E-resources
- MeSH
- Biodiversity * MeSH
- Coleoptera MeSH
- Ecosystem MeSH
- Forests * MeSH
- Soil MeSH
- Trees classification growth & development MeSH
- Animals MeSH
- Check Tag
- Animals MeSH
- Publication type
- Journal Article MeSH
Understory herbs and soil invertebrates play key roles in soil formation and nutrient cycling in forests. Studies suggest that diversity in the canopy and in the understory are positively associated, but these studies often confound the effects of tree species diversity with those of tree species identity and abiotic conditions. We combined extensive field sampling with structural equation modeling to evaluate the simultaneous effects of tree diversity on the species diversity of understory herbs, beetles, and earthworms. The diversity of earthworms and saproxylic beetles was directly and positively associated with tree diversity, presumably because species of both these taxa specialize on certain species of trees. Tree identity also strongly affected diversity in the understory, especially for herbs, likely as a result of interspecific differences in canopy light transmittance or litter decomposition rates. Our results suggest that changes in forest management will disproportionately affect certain understory taxa. For instance, changes in canopy diversity will affect the diversity of earthworms and saproxylic beetles more than changes in tree species composition, whereas the converse would be expected for understory herbs and detritivorous beetles. We conclude that the effects of tree diversity on understory taxa can vary from positive to negative and may affect biogeochemical cycling in temperate forests. Thus, maintaining high diversity in temperate forests can promote the diversity of multiple taxa in the understory.
Biological and Environmental Sciences University of Stirling Stirling FK9 4LA United Kingdom
Wetland and Aquatic Research Center U S Geological Survey Lafayette Louisiana 70506 USA
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- $a Chamagne, Juliette $u Institute of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland.
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- $a Do the rich get richer? Varying effects of tree species identity and diversity on the richness of understory taxa / $c J. Chamagne, CET. Paine, DR. Schoolmaster, R. Stejskal, D. Volarřík, J. Šebesta, F. Trnka, T. Koutecký, P. Švarc, M. Svátek, A. Hector, R. Matula,
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- $a Understory herbs and soil invertebrates play key roles in soil formation and nutrient cycling in forests. Studies suggest that diversity in the canopy and in the understory are positively associated, but these studies often confound the effects of tree species diversity with those of tree species identity and abiotic conditions. We combined extensive field sampling with structural equation modeling to evaluate the simultaneous effects of tree diversity on the species diversity of understory herbs, beetles, and earthworms. The diversity of earthworms and saproxylic beetles was directly and positively associated with tree diversity, presumably because species of both these taxa specialize on certain species of trees. Tree identity also strongly affected diversity in the understory, especially for herbs, likely as a result of interspecific differences in canopy light transmittance or litter decomposition rates. Our results suggest that changes in forest management will disproportionately affect certain understory taxa. For instance, changes in canopy diversity will affect the diversity of earthworms and saproxylic beetles more than changes in tree species composition, whereas the converse would be expected for understory herbs and detritivorous beetles. We conclude that the effects of tree diversity on understory taxa can vary from positive to negative and may affect biogeochemical cycling in temperate forests. Thus, maintaining high diversity in temperate forests can promote the diversity of multiple taxa in the understory.
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- $a Paine, C E Timothy $u Biological and Environmental Sciences, University of Stirling, Stirling, FK9 4LA, United Kingdom.
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- $a Schoolmaster, Donald R $u Wetland and Aquatic Research Center, U.S. Geological Survey, Lafayette, Louisiana, 70506, USA.
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- $a Stejskal, Robert $u Department of Forest Botany, Dendrology and Geobiocoenology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemeědeělská 3, 613 00, Brno, Czech Republic.
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- $a Volarřík, Daniel $u Department of Forest Botany, Dendrology and Geobiocoenology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemeědeělská 3, 613 00, Brno, Czech Republic.
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- $a Trnka, Filip $u Department of Ecology and Environmental Sciences, Faculty of Science, Palacký University Olomouc, Šlechtiteluů 27, CZ-783 71, Olomouc, Czech Republic.
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- $a Koutecký, Tomáš $u Department of Forest Botany, Dendrology and Geobiocoenology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemeědeělská 3, 613 00, Brno, Czech Republic.
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- $a Švarc, Petr $u Department of Forest Protection and Wildlife Management, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemeědeělská 3, 613 00, Brno, Czech Republic.
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- $a Svátek, Martin $u Department of Forest Botany, Dendrology and Geobiocoenology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemeědeělská 3, 613 00, Brno, Czech Republic.
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- $a Hector, Andy $u Institute of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland. Department of Plant Sciences, University of Oxford, Oxford, OX1 3RB, United Kingdom.
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- $a Matula, Radim $u Department of Forest Botany, Dendrology and Geobiocoenology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemeědeělská 3, 613 00, Brno, Czech Republic.
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