The functional roles of species in metacommunities, as revealed by metanetwork analyses of bird-plant frugivory networks.
Forest fragmentation
metacommunity
metanetwork
multilayer network
seed dispersal
species roles
Journal
Ecology letters
ISSN: 1461-0248
Titre abrégé: Ecol Lett
Pays: England
ID NLM: 101121949
Informations de publication
Date de publication:
Aug 2020
Aug 2020
Historique:
received:
28
02
2020
revised:
30
03
2020
accepted:
09
04
2020
pubmed:
22
5
2020
medline:
8
7
2020
entrez:
22
5
2020
Statut:
ppublish
Résumé
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.
Types de publication
Letter
Langues
eng
Sous-ensembles de citation
IM
Pagination
1252-1262Subventions
Organisme : The National Key Research and Development Program of China
ID : 2016YFC0500105
Organisme : The National Key Research and Development Program of China
ID : 2017YFC0503802
Organisme : Research and Development
Organisme : National Natural Science Foundation of China
ID : 31330013 31770565 31971441
Informations de copyright
© 2020 John Wiley & Sons Ltd/CNRS.
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