Skip to Main content Skip to Navigation
Journal articles

Bitrophic interactions shape biodiversity in space

Abstract : Ecologists and conservation biologists often study particular trophic groups in isolation, which precludes an explicit assessment of the impact of multitrophic interactions on community structure and dynamics. Network ecology helps to fill this gap by focusing on species interactions, but it often ignores spatial processes. Here, we are taking a step forward in the integration of metacommunity and network approaches by studying a model of bitrophic interactions in a spatial context. We quantify the effect of bitrophic interactions on the diversity of plants and their animal interactors, and we show their complex dependence on the structure of the interaction network, the strength of interactions, and the dispersal rate. We then develop a method to parameterize our model with real-world networks and apply it to 54 datasets describing three types of interactions: pollination, fungal association, and insect herbivory. In all three network types, bitrophic interactions generally lead to an increase of plant and animal spatial heterogeneity by decreasing local species richness while increasing β-diversity.
Document type :
Journal articles
Complete list of metadata

https://hal.archives-ouvertes.fr/hal-00783210
Contributor : Import Ws Irstea <>
Submitted on : Monday, February 4, 2013 - 11:25:19 AM
Last modification on : Monday, May 18, 2020 - 2:34:26 PM
Long-term archiving on: : Saturday, April 1, 2017 - 1:40:17 PM

Files

hal1.pdf
Publisher files allowed on an open archive

Identifiers

  • HAL Id : hal-00783210, version 1
  • IRSTEA : PUB00037373

Collections

Citation

F. Jabot, J. Bascompte. Bitrophic interactions shape biodiversity in space. Proceedings of the National Academy of Sciences of the United States of America , National Academy of Sciences, 2012, 109 (12), p. 4521 - p. 4526. ⟨hal-00783210⟩

Share

Metrics

Record views

203

Files downloads

522