Space race functional responses

11513 13 77152 2 213167 document 77152 SjodinEtal2014_SpaceRaceA4.pdf application/pdf 62a6c3a2ff7006d626207851a925d9bf MD5 276896 2017-04-25 11:55:34 https://pure.iiasa.ac.at/id/eprint/11513/1/SjodinEtal2014_SpaceRaceA4.pdf 11513 1 1 application/pdf text en public cc_by

SjodinEtal2014_SpaceRaceA4.pdf

accepted 77153 2 213171 document 77153 lightbox.jpg image/png 90e5576eb3df8930aea8c30856c8231e MD5 28299 2017-04-25 11:55:58 https://pure.iiasa.ac.at/id/eprint/11513/2/lightbox.jpg 11513 2 2 image/png other Thumbnails conversion from text to thumbnail_lightbox en public

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http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/77152 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/77152 http://eprints.org/relation/isIndexCodesVersionOf https://pure.iiasa.ac.at/id/document/77152 archive 351 disk0/00/01/15/13 2016-01-15 08:53:33 2021-08-27 17:25:13 2016-01-15 08:53:33 article show Sjödin H. 8773 Brännström Å. 8085 Englund G. Space race functional responses pub iis_ecl prog_eep community dynamics; dispersal behaviors, functional response; space race We derive functional responses under the assumption that predators and prey are engaged in a space race in which prey avoid patches with many predators and predators avoid patches with few or no prey. The resulting functional response models have a simple structure and include functions describing how the emigration of prey and predators depend on interspecific densities. As such, they provide a link between dispersal behaviors and community dynamics. The derived functional response is general but is here modeled in accordance with empirically documented emigration responses. We find that the prey emigration response to predators has stabilizing effects similar to that of the DeAngelis-Beddington functional response, and that the predator emigration response to prey has destabilizing effects similar to that of the Holling type II response. A stabiliy criterion describing the net effect of the two emigration responses on a Lotka-Volterra predator-prey system is presented. The winner of the space race (i.e. whether predators or prey are favoured) is determined by the relationship between the slopes of the species- migration responses. It is predicted that predators win the space race in poor habitats, where predator and prey densities are low, and that prey are more successful in richer habitats. 2015-02 published Royal Society of London 10.1098/rspb.2014.2121 XJ-15-049 Proceedings of the Royal Society B; 282(1801):20142121 (January 2015) [doi:10.1098/rspb.2014.2121] 286 39 public Proceedings of the Royal Society B: Biological Sciences 282 1801 20142121 20142121 TRUE 0962-8452 FALSE info:eu-repo/semantics/article