The molding hypothesis: linking shell use with hermit crab growth, morphology, and shell-species selection

dc.creatorTurra, A
dc.creatorLeite, FPP
dc.date2003
dc.date2014-11-15T05:08:06Z
dc.date2015-11-26T17:35:59Z
dc.date2014-11-15T05:08:06Z
dc.date2015-11-26T17:35:59Z
dc.date.accessioned2018-03-29T00:18:27Z
dc.date.available2018-03-29T00:18:27Z
dc.identifierMarine Ecology Progress Series. Inter-research, v. 265, n. 155, n. 163, 2003.
dc.identifier0171-8630
dc.identifierWOS:000188774900013
dc.identifier10.3354/meps265155
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/78160
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/78160
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/78160
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1285791
dc.descriptionThe 'molding hypothesis' (Elwood et al. 1979. Anim Behav 27:940-946) predicts that shell-species selection by hermit crabs may be influenced by past experience in shell use through shell-imposed alterations in crab morphology. The present study was designed to test this hypothesis and to further the understanding of plasticity in the shell-species selection in hermit crabs. Shell use was demonstrated to influence crab growth and morphology. Individuals reared in shells of Tegula viridula attained larger sizes than individuals in shells of Morula nodulosa. Crab growth was also dependent on crab sex, since males reached larger sizes and presented longer intermolt periods than females. The most conspicuous influence of shell utilization on crab morphology was in dorso-ventral flattening, which occurred on a decreasing scale with the shell species, as follows: M nodulosa > Cerithium atratum > T. viridula. Crabs from all treatments and those collected in nature in shells of Olivella minuta chose mainly shells of C atratum, but the previous experience of crabs strongly influenced their shell-species selection pattern. Individuals maintained in M. nodulosa shells selected M nodulosa shells more frequently than individuals reared in T viridula or C. atratum. The influence of past experience was demonstrated to depend on shell type, since patterns of shell-species selection of individuals reared in T viridula or C. atratum were identical. These differences in the shell-species selection pattern directly reflected the differences in crab dorso-ventral flattening, i.e. dorso-ventrally compressed individuals (those in shells of M. nodulosa or O. minuta) showed a higher probability of selecting narrow-aperture shells than did 'rounded' individuals (those in shells of T viridula or C. atratum). The weight of the selected shells at the end of the experiment depended on crab size instead of previous experience with different shell architectures.
dc.descriptiono TEXTO COMPLETO DESTE ARTIGO, ESTARÁ DISPONÍVEL À PARTIR DE AGOSTO DE 2015.
dc.description265
dc.description155
dc.description163
dc.languageen
dc.publisherInter-research
dc.publisherOldendorf Luhe
dc.publisherAlemanha
dc.relationMarine Ecology Progress Series
dc.relationMar. Ecol.-Prog. Ser.
dc.rightsembargo
dc.sourceWeb of Science
dc.subjectphenotypic plasticity
dc.subjectshell-species selection
dc.subjectresource selection
dc.subjectgrowth
dc.subjectmolding hypothesis
dc.subjectPagurus
dc.subjectPagurus-longicarpus Say
dc.subjectSouth-eastern Brazil
dc.subjectUtilization Patterns
dc.subjectPreference
dc.subjectDecapoda
dc.subjectAnomura
dc.subjectSize
dc.subjectExperience
dc.subjectPredation
dc.subjectCrustacea
dc.titleThe molding hypothesis: linking shell use with hermit crab growth, morphology, and shell-species selection
dc.typeArtículos de revistas


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