Intraguild predation with spatially structured interactions
Resource
Basic and Applied Ecology,9(2),135-144.
Journal
Basic and Applied Ecology
Journal Volume
9
Journal Issue
2
Pages
135--144
Date Issued
2008
Author(s)
Abstract
Consumer-resource interactions with intraguild predation (IGP) were studied in a spatial setting (i.e., predators catch prey and individuals reproduce within local neighborhoods only). Pair approximation (a method for deriving ordinary differential equations that approximate the dynamics of a community that interacts in a lattice environment) was used to study the effect of spatially structured species interactions. An individual-based computer simulation was used to extend the study to a case with spatially variable resource densities. The qualitative results of the pair approximation model were similar to those of the corresponding non-spatial model. However, the spatial model predicted coex((istence over a wider range of parameters than the non-spatial model when intraguild prey are nutritionally valuable to intraguild predators. Spatially heterogeneous resource distributions and spatially structured interaction could overturn the qualitative predictions of non-spatial models. © 2007 Gesellschaft für Ökologie.
SDGs
Type
journal article