Diversity of response and effect traits provides complementary information about avian community dynamics linked to ecological function
Autor: | Hordley, Lisbeth A, Gillings, Simon, Petchey, Owen L, Tobias, Joseph A, Oliver, Thomas H |
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Přispěvatelé: | University of Zurich, Hordley, Lisbeth A |
Jazyk: | angličtina |
Rok vydání: | 2021 |
Předmět: |
Evolution
media_common.quotation_subject 05 Environmental Sciences Environmental Sciences & Ecology Biology insurance hypothesis INTRASPECIFIC VARIABILITY COEXISTENCE 10127 Institute of Evolutionary Biology and Environmental Studies Functional diversity Behavior and Systematics Community dynamics BUTTERFLIES functional traits Ecology Evolution Behavior and Systematics media_common Functional ecology Science & Technology Ecology STABILITY BIRDS SPECIES RICHNESS ECOSYSTEM FUNCTION RESILIENCE 06 Biological Sciences functional diversity 1105 Ecology Evolution Behavior and Systematics community dynamics ecological function Evolutionary biology 570 Life sciences biology 590 Animals (Zoology) BIODIVERSITY Life Sciences & Biomedicine human activities Diversity (politics) ENVIRONMENTS |
ISSN: | 0269-8463 |
Popis: | Functional diversity metrics based on species traits are widely used to investigate ecosystem functioning. In theory, such metrics have different implications depending on whether they are calculated from traits mediating responses to environmental change (response traits) or those regulating function (effect traits), yet trait choice in diversity metrics is rarely scrutinized.\ud Here, we compile effect and response traits for British bird species supplying two key ecological services—seed dispersal and insect predation—to assess the relationship between functional diversity and both mean and stability of community abundance over time.\ud As predicted, functional diversity correlates with stability in community abundance of seed dispersers when calculated using response traits. However, we found a negative relationship between functional diversity and mean community abundance of seed dispersers when calculated using effect traits. Subsequently, when combining all traits together, we found inconsistent results with functional diversity correlating with reduced stability in insectivores, but greater stability in seed dispersers.\ud Our findings suggest that trait choice should be considered more carefully when applying such metrics in ecosystem management. |
Databáze: | OpenAIRE |
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