Influences of Movement Behavior on Animal Distributions at Edges of Homogeneous Patches

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dc.contributor.authorYoung, Hilary C.
dc.contributor.authorReid, Tyler G.
dc.contributor.authorRandall, Lea A.
dc.contributor.authorLachowsky, Leanna E.
dc.contributor.authorFoster, Danusha J.
dc.contributor.authorPengelly, Chris J.
dc.contributor.authorLatty, Tanya
dc.contributor.authorReid, Mary L.
dc.date.accessioned2018-09-27T11:47:14Z
dc.date.available2018-09-27T11:47:14Z
dc.date.issued2013-01-15
dc.date.updated2018-09-27T11:47:14Z
dc.description.abstractWe propose that changes in movement behavior may be a proximate mechanism that influences the accumulation of animals at habitat edges. We tested this idea with a combination of empirical and simulation experiments in a resource-free landscape. The movements of individual flour beetles, Tribolium confusum, were tracked across a paper arena edged with invisible tape until beetles crossed the edge. Movement behavior (step lengths and turn angles) and cumulative occupancy were analyzed according to distance from the edge. We found that beetles took smaller steps with larger turn angles near edges than in the center of the arena and that beetle distribution was highly biased towards the edge of the arena. We then tested two agent-based simulation models for each beetle: an edge-independent model and an edge-dependent model. Both models predicted less time spent at the edge than was observed. The proportion of time spent at edges depended on the propensity to cross the edge, which could not be explained by beetle body size or energetic condition. The distribution of animals with respect to habitat edges depends on many factors, but we suggest that proximate mechanisms such as movement behavior should be explicitly considered when interpreting animal distributions.
dc.description.versionPeer Reviewed
dc.identifier.citationHilary C. Young, Tyler G. Reid, Lea A. Randall, et al., “Influences of Movement Behavior on Animal Distributions at Edges of Homogeneous Patches,” International Journal of Zoology, vol. 2013, Article ID 602845, 8 pages, 2013. doi:10.1155/2013/602845
dc.identifier.doihttps://doi.org/10.1155/2013/602845
dc.identifier.urihttp://hdl.handle.net/1880/108318
dc.identifier.urihttps://doi.org/10.11575/PRISM/44135
dc.language.rfc3066en
dc.rights.holderCopyright © 2013 Hilary C. Young et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
dc.titleInfluences of Movement Behavior on Animal Distributions at Edges of Homogeneous Patches
dc.typeJournal Article
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