Interference and exploitation components in interespecific competition between sympatric, intertidal hermit crabs

dc.creatorTurra, A
dc.creatorDenadai, MR
dc.date2004
dc.dateOCT 28
dc.date2014-11-16T03:16:09Z
dc.date2015-11-26T16:19:16Z
dc.date2014-11-16T03:16:09Z
dc.date2015-11-26T16:19:16Z
dc.date.accessioned2018-03-28T23:02:18Z
dc.date.available2018-03-28T23:02:18Z
dc.identifierJournal Of Experimental Marine Biology And Ecology. Elsevier Science Bv, v. 310, n. 2, n. 183, n. 193, 2004.
dc.identifier0022-0981
dc.identifierWOS:000223841900004
dc.identifier10.1016/j.jembe.2004.04.008
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/60425
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/60425
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/60425
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1267666
dc.descriptionThis study was designed to evaluate the effect of interference and exploitation competition in shell partitioning between two hermit crab species (Pagurus criniticornis and Clibanarius antillensis). Field samples revealed that shells of the gastropod Cerithium atratum were the main resource used by both hermit crab species and that Pagurus used eroded or damaged shells in higher frequency than Clibanarius. The exploitative ability of each species was compared between species in the laboratory using dead gastropod (Cerithium) baits to simulate predation events and signalize newly available shells to hermit crabs. Pagurus reached the baits more rapidly than Clibanarius, but this higher exploitative ability did not explain shell utilization patterns in nature. Another experiment evaluated the dominance hierarchy between these two hermit crab species and revealed that Clibanarius was able to outcompete Pagurus for higher quality shells in agonistic encounters. This higher interference competitive ability of Clibanarius in relation to Pagurus may explain field observations. Nevertheless, Pagurus may be responsible to enhance shell availability to other hermit crab species that have lower ability to find and use newly available shells. Differently, the poorer condition of shells used by Pagurus, the higher ability of this species to attend gastropod predation events and its higher consumption rate by shell-breaking crabs (Menippe nodifrons) may increase its predation risks, thus revealing the disadvantages of such an exploitative competitive strategy for hermit crabs. (C) 2004 Elsevier B.V. All rights reserved.
dc.description310
dc.description2
dc.description183
dc.description193
dc.languageen
dc.publisherElsevier Science Bv
dc.publisherAmsterdam
dc.publisherHolanda
dc.relationJournal Of Experimental Marine Biology And Ecology
dc.relationJ. Exp. Mar. Biol. Ecol.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjecthermit crabs
dc.subjectresource partitioning
dc.subjectcompetitive dynamics
dc.subjectClibanarius
dc.subjectPagurus
dc.subjectShell Utilization Patterns
dc.subjectPagurus-longicarpus Say
dc.subjectGastropod Shells
dc.subjectInterspecific Competition
dc.subjectBehavioral Adaptations
dc.subjectSpecies Selection
dc.subjectQuirimba Island
dc.subjectAssemblage
dc.subjectEcology
dc.subjectAnomura
dc.titleInterference and exploitation components in interespecific competition between sympatric, intertidal hermit crabs
dc.typeArtículos de revistas


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