Trophic theory of island biogeography

Gravel, Dominique, Massol, Francois, Canard, Elsa, Mouillot, David, and Mouquet, Nicolas (2011) Trophic theory of island biogeography. Ecology Letters, 14 (10). pp. 1010-1016.

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MacArthur and Wilson's Theory of Island Biogeography (TIB) is among the most well-known process-based explanations for the distribution of species richness. It helps understand the species–area relationship, a fundamental pattern in ecology and an essential tool for conservation. The classic TIB does not, however, account for the complex structure of ecological systems. We extend the TIB to take into account trophic interactions and derive a species-specific model for occurrence probability. We find that the properties of the regional food web influence the species–area relationship, and that, in return, immigration and extinction dynamics affect local food web properties. We compare the accuracy of the classic TIB to our trophic TIB to predict community composition of real food webs and find strong support for our trophic extension of the TIB. Our approach provides a parsimonious explanation to species distributions and open new perspectives to integrate the complexity of ecological interactions into simple species distribution models.

Item ID: 20762
Item Type: Article (Research - C1)
ISSN: 1461-0248
Keywords: complexity, ecological network, food web, island biogeography, metacommunity, species–area relationship
Date Deposited: 06 Mar 2012 05:23
FoR Codes: 06 BIOLOGICAL SCIENCES > 0602 Ecology > 060299 Ecology not elsewhere classified @ 100%
SEO Codes: 96 ENVIRONMENT > 9608 Flora, Fauna and Biodiversity > 960899 Flora, Fauna and Biodiversity of Environments not elsewhere classified @ 100%
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