Burrow morphology of Uca uruguayensis and Uca leptodactylus (Decapoda: Ocypodidae) from a subtropical mangrove forest in the western Atlantic

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dc.contributor.authorMachado, Glauco B. O. [UNESP]
dc.contributor.authorGusmao-Junior, Joao B. L. [UNESP]
dc.contributor.authorCosta, Tania M. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-12-03T13:08:52Z
dc.date.available2014-12-03T13:08:52Z
dc.date.issued2013-09-01
dc.description.abstractThe continuous excavation of burrows by fiddler crabs generates bioturbation in the sediment, which can be estimated from burrow morphology. The aim of the present study was to describe the burrow morphology of Uca uruguayensis and U. leptodactylus and its relationship with demography of resident individuals and to estimate the level of bioturbation in the sediment generated by each species. For all individuals from each of the 2 species, sex was determined and the carapace width (CW; mm) measured. Burrows were characterized according to burrow diameter (BD; mm), maximum burrow depth (MBD; mm) and burrow volume (BV; cm(3)). The density of each species in the study area was also evaluated. In both species, the males were larger and occupied burrows with higher BV compared to females. Differences between sexes in relation to the burrow characteristics might reflect sexual dimorphism within the group and are probably related to the fact that males use the burrows for mating. BD and BV showed significant positive relationships with the size of resident crabs. The amount of sediment removed per burrow was estimated from mean BV: 10.78 cm(3) of sediment/burrow for U. uruguayensis and 12.38 cm(3) of sediment/burrow for U. leptodactylus. Despite the density and depth differences between the 2 species, the similarity in burrow volume suggests that U. uruguayensis and U. leptodactylus present the same importance in terms of the bioturbation process. Burrow morphology is highly associated with characteristics of the occupant, although extrinsic factors should also be considered, and its description can provide estimates on the bioturbation generated by Uca species in mangrove forests.en
dc.description.affiliationUniv Estadual Paulista, Sao Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Sao Paulo, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 10/01252-5
dc.format.extent307-314
dc.identifierhttp://dx.doi.org/10.1111/j.1749-4877.2012.00297.x
dc.identifier.citationIntegrative Zoology. Hoboken: Wiley-blackwell, v. 8, n. 3, p. 307-314, 2013.
dc.identifier.doi10.1111/j.1749-4877.2012.00297.x
dc.identifier.issn1749-4877
dc.identifier.urihttp://hdl.handle.net/11449/111662
dc.identifier.wosWOS:000324300200008
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.relation.ispartofIntegrative Zoology
dc.relation.ispartofjcr1.856
dc.relation.ispartofsjr0,854
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectbioturbationen
dc.subjectburrow structureen
dc.subjectcrab burrowingen
dc.subjectfiddler craben
dc.titleBurrow morphology of Uca uruguayensis and Uca leptodactylus (Decapoda: Ocypodidae) from a subtropical mangrove forest in the western Atlanticen
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderWiley-Blackwell
unesp.author.orcid0000-0002-0147-1256[1]
unesp.author.orcid0000-0003-0230-8431[3]

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