Movement ecology: size-specific behavioral response of an invasive snail to food availability

Ecology
Sunny B Snider, James F Gilliam

Abstract

Immigration, emigration, migration, and redistribution describe processes that involve movement of individuals. These movements are an essential part of contemporary ecological models, and understanding how movement is affected by biotic and abiotic factors is important for effectively modeling ecological processes that depend on movement. We asked how phenotypic heterogeneity (body size) and environmental heterogeneity (food resource level) affect the movement behavior of an aquatic snail (Tarebia granifera), and whether including these phenotypic and environmental effects improves advection-diffusion models of movement. We postulated various elaborations of the basic advection diffusion model as a priori working hypotheses. To test our hypotheses we measured individual snail movements in experimental streams at high- and low-food resource treatments. Using these experimental movement data, we examined the dependency of model selection on resource level and body size using Akaike's Information Criterion (AIC). At low resources, large individuals moved faster than small individuals, producing a platykurtic movement distribution; including size dependency in the model improved model performance. In stark contrast, at high resour...Continue Reading

References

Apr 18, 1996·Nature·M J O'RiainC G Faulkes
Sep 11, 1999·Parasitology Today·J P Pointier, M Giboda
Oct 5, 2001·Memórias do Instituto Oswaldo Cruz·J P Pointier
Apr 18, 2003·The American Naturalist·Garrick T Skalski, James F Gilliam
Jun 1, 1951·Biometrika·J G SKELLAM
Dec 16, 2006·Ecology·Per FauchaldHarald Gjøsaeter
Dec 23, 2006·The Journal of Animal Ecology·Matthew F Coombs, Marco A Rodríguez
Aug 19, 2008·The American Naturalist·Richard W Zabel
Aug 19, 2008·The American Naturalist·Juan Manuel Morales
Feb 1, 1999·The American Naturalist·Nick M Haddad

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Citations

Oct 9, 2012·The Journal of Animal Ecology·Jodie MartinJon E Swenson
Aug 17, 2010·The Journal of Animal Ecology·Jayme Augusto PrevedelloMarcus Vinícius Vieira
Nov 19, 2009·Risk Analysis : an Official Publication of the Society for Risk Analysis·Chung-Min LiaoWei-Yu Chen
Dec 18, 2021·The Science of the Total Environment·Fhatuwani MakheranaTatenda Dalu

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