A highly resolved food web for insdect seed predators in a species-rich tropical forest

0517168 - BC 2020 RIV US eng J - Journal Article
Gripenberg, S. - Basset, Yves - Lewis, O. T. - Terry, J. C. D. - Wright, S. J. - Simón, I. - Fernández, D. C. - Cedeno-Sanchez, M. - Rivera, M. - Barrios, H. - Brown, J. W. - Calderón, O. - Cognato, A. I. - Kim, J. - Miller, S. E. - Morse, G. E. - Pinzón-Navarro, S. - Quicke, D. L. J. - Robbins, R. K. - Salminen, J.-P. - Vesterinen, E.
A highly resolved food web for insdect seed predators in a species-rich tropical forest.
Ecology Letters. Roč. 22, č. 10 (2019), s. 1638-1649. ISSN 1461-023X. E-ISSN 1461-0248
R&D Projects: GA ČR(CZ) GA16-20825S
Institutional support: RVO:60077344
Keywords : apparent competition * Barro Colorado Island * host specialisation
OECD category: Ecology
Impact factor: 8.665, year: 2019
Method of publishing: Open access
https://onlinelibrary.wiley.com/doi/epdf/10.1111/ele.13359

The top‐down and indirect effects of insects on plant communities depend on patterns of host use, which are often poorly documented, particularly in species‐rich tropical forests. At Barro Colorado Island, Panama, we compiled the first food web quantifying trophic interactions between the majority of co‐occurring woody plant species and their internally feeding insect seed predators. Our study is based on more than 200 000 fruits representing 478 plant species, associated with 369 insect species. Insect host‐specificity was remarkably high: only 20% of seed predator species were associated with more than one plant species, while each tree species experienced seed predation from a median of two insect species. Phylogeny, but not plant traits, explained patterns of seed predator attack. These data suggest that seed predators are unlikely to mediate indirect interactions such as apparent competition between plant species, but are consistent with their proposed contribution to maintaining plant diversity via the Janzen–Connell mechanism.
Permanent Link: http://hdl.handle.net/11104/0302607