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The body-size dependence of mutual interference.


ABSTRACT: The parameters that drive population dynamics typically show a relationship with body size. By contrast, there is no theoretical or empirical support for a body-size dependence of mutual interference, which links foraging rates to consumer density. Here, I develop a model to predict that interference may be positively or negatively related to body size depending on how resource body size scales with consumer body size. Over a wide range of body sizes, however, the model predicts that interference will be body-size independent. This prediction was supported by a new dataset on interference and consumer body size. The stabilizing effect of intermediate interference therefore appears to be roughly constant across size, while the effect of body size on population dynamics is mediated through other parameters.

SUBMITTER: DeLong JP 

PROVIDER: S-EPMC4090548 | biostudies-literature | 2014 Jun

REPOSITORIES: biostudies-literature

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The body-size dependence of mutual interference.

DeLong John P JP  

Biology letters 20140601 6


The parameters that drive population dynamics typically show a relationship with body size. By contrast, there is no theoretical or empirical support for a body-size dependence of mutual interference, which links foraging rates to consumer density. Here, I develop a model to predict that interference may be positively or negatively related to body size depending on how resource body size scales with consumer body size. Over a wide range of body sizes, however, the model predicts that interferenc  ...[more]

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2021-01-27 | GSE146145 | GEO