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http://hdl.handle.net/11154/3192
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Title: | Scale-free foraging by primates emerges from their interaction with a complex environment |
Authors: | Boyer, D Ramos-Fernandez, G Miramontes, O Mateos, JL Cocho, G Larralde, H Ramos, H Rojas, F |
Issue Date: | 2006 |
Abstract: | Scale-free foraging patterns are widespread among animals. These may be the outcome of an optimal searching strategy to find scarce, randomly distributed resources, but a less explored alternative is that this behaviour may result from the interaction of foraging animals with a particular distribution of resources. We introduce a simple foraging model where individual primates follow mental maps and choose their displacements according to a maximum efficiency criterion, in a spatially disordered environment containing many trees with a heterogeneous size distribution. We show that a particular tree-size frequency distribution induces non-Gaussian movement patterns with multiple spatial scales (Levy walks). These results are consistent with field observations of tree-size variation and spider monkey (Ateles geoffroyi) foraging patterns. We discuss the consequences that our results may have for the patterns of seed dispersal by foraging primates. |
URI: | http://hdl.handle.net/11154/3192 |
ISSN: | 0962-8452 |
Appears in Collections: | Matemáticas
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