The functional roles of species in metacommunities, as revealed by metanetwork analyses of bird–plant frugivory networks
- State Key Laboratory of Integrated Management of Pest Insects and Rodents in Agriculture Institute of Zoology Chinese Academy of Sciences 1 Beichen West Road Chaoyang District, Beijing 100101 China, University of Chinese Academy of Sciences Beijing 10049 China
- State Key Laboratory of Integrated Management of Pest Insects and Rodents in Agriculture Institute of Zoology Chinese Academy of Sciences 1 Beichen West Road Chaoyang District, Beijing 100101 China, Key Laboratory of Zoological Systematics and Evolution Chinese Academy of Sciences 1 Beichen West Road Chaoyang District, Beijing 100101 China
- Department of Environmental Science and Policy University of California 1 Shields Ave Davis CA 95616 USA
- Biometry and Environmental System Analysis University of Freiburg Tennenbacherstr. 4 79106 Freiburg Germany
- State Key Laboratory of Integrated Management of Pest Insects and Rodents in Agriculture Institute of Zoology Chinese Academy of Sciences 1 Beichen West Road Chaoyang District, Beijing 100101 China
Understanding how biodiversity and interaction networks change across environmental gradients is a major challenge in ecology. We integrated metacommunity and metanetwork perspectives to test species’ functional roles in bird–plant frugivory interactions in a fragmented forest landscape in Southwest China, with consequences for seed dispersal. Availability of fruit resources both on and under trees created vertical feeding stratification for frugivorous birds. Bird–plant interactions involving birds feeding only on‐the‐tree or both on and under‐the‐tree (shared) had a higher centrality and contributed more to metanetwork organisation than interactions involving birds feeding only under‐the‐tree. Moreover, bird–plant interactions associated with large‐seeded plants disproportionately contributed to metanetwork organisation and centrality. Consequently, on‐the‐tree and shared birds contributed more to metanetwork organisation whereas under‐the‐tree birds were more involved in local processes. We would expect that species’ roles in the metanetwork will translate into different conservation values for maintaining functioning of seed‐dispersal networks.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 1630342
- Journal Information:
- Ecology Letters, Journal Name: Ecology Letters Journal Issue: 8 Vol. 23; ISSN 1461-023X
- Publisher:
- Wiley-BlackwellCopyright Statement
- Country of Publication:
- United Kingdom
- Language:
- English
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