WATER ABSORPTION of THE FUR and SWIMMING BEHAVIOR of SEMIAQUATIC and TERRESTRIAL ORYZOMINE RODENTS

Página do item simplificado
dc.contributor.authorSantori, Ricardo T.
dc.contributor.authorVieira, Marcus Vinicius
dc.contributor.authorRocha-Barbosa, Oscar
dc.contributor.authorMagnan-Neto, Jose Aarao
dc.contributor.authorGobbi, Nivar [UNESP]
dc.contributor.institutionUniversidade do Estado do Rio de Janeiro (UERJ)
dc.contributor.institutionUniversidade Federal do Rio de Janeiro (UFRJ)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2013-09-30T18:48:34Z
dc.date.accessioned2014-05-20T13:57:44Z
dc.date.available2013-09-30T18:48:34Z
dc.date.available2014-05-20T13:57:44Z
dc.date.issued2008-10-01
dc.description.abstractLocomotion in land and water requires different adaptations, hence semiaquatic mammals must deal with conclicting demands of the 2 environmetns. Semiaquatic rodents of the tribe Oryzomyini are considered semiaquatic mostly based on habitat use and morphology, but locomotory specializations were not yet determined for most species of the group. We compared water absorption of the fur and swimming behavior between 2 species of oryzomyine water rats (Nectomys) and 2 terrestrial species of Cerradomys. We used adult rodents captured in the wild but acclimated to laboratory conditions. Water absorption rate wits determined by the relative increase in body mass after a 5-min swimming session. Animals were videotaped swimming in an aquarium to determine gaits, body Posture, maneuverability, and speed. Water absorption rate was significantly lower in semiaquatic species, With no significant difference between sexes. Bipedal paddling was the more frequently used gait by all 4 species. but semiaquatic species were faster and maintained a more hydrodynamic body Posture. with a short gliding phase during the gaiut cycle. Only semiaquatic species were capable of floating effortlessly, and used the swimming bound, a gait similar to the half bound of terrestrial locomotion. Submerged swimming was the fastest swimming gait, used by 1 terrestrial and 1 semiaquatic species. The better performance during bipedal swimming of semiaquatic water rats was related to the improved buoyancy provided by reduced water absorption of the fur, Which seemed to represent an important adaptation to move in the water without compromising locomotion on land.en
dc.description.affiliationUniversidade do Estado do Rio de Janeiro (UERJ), Dept Ciencias, Fac Farm Prof, BR-24435500 Rio de Janeiro, Brazil
dc.description.affiliationUniv Fed Rio de Janeiro, Lab Vertebrados, Dept Ecol, BR-21941590 Rio de Janeiro, Brazil
dc.description.affiliationUniversidade do Estado do Rio de Janeiro (UERJ), Lab Zool Vertebradas Tetrapoda, Dept Zool, IBRAG, BR-20550900 Rio de Janeiro, Brazil
dc.description.affiliationUniv Estadual Paulista, Dept Ecol, Inst Biociencias, BR-13506900 São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Ecol, Inst Biociencias, BR-13506900 São Paulo, Brazil
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)
dc.description.sponsorshipPrograma Prociencia/Universidade do Estado do Rio de Janeiro
dc.format.extent1152-1161
dc.identifierhttp://dx.doi.org/10.1644/07-MAMM-A-327.1
dc.identifier.citationJournal of Mammalogy. Lawrence: Alliance Communications Group Division Allen Press, v. 89, n. 5, p. 1152-1161, 2008.
dc.identifier.doi10.1644/07-MAMM-A-327.1
dc.identifier.issn0022-2372
dc.identifier.urihttp://hdl.handle.net/11449/20578
dc.identifier.wosWOS:000260316800010
dc.language.isoeng
dc.publisherAlliance Communications Group Division Allen Press
dc.relation.ispartofJournal of Mammalogy
dc.relation.ispartofjcr2.139
dc.relation.ispartofsjr1,136
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectCerradomysen
dc.subjectlocomotionen
dc.subjectmammalian behaviouren
dc.subjectNectomysen
dc.subjectswimmingen
dc.titleWATER ABSORPTION of THE FUR and SWIMMING BEHAVIOR of SEMIAQUATIC and TERRESTRIAL ORYZOMINE RODENTSen
dc.typeArtigo
dcterms.licensehttp://www.bioone.org/page/terms_of_use
dcterms.rightsHolderAlliance Communications Group Division Allen Press
unesp.author.orcid0000-0002-4472-5447[2]
unesp.author.orcid0000-0002-0251-203X[3]
unesp.author.orcid0000-0001-7838-2393[3]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claropt

Arquivos

Licença do Pacote
Agora exibindo 1 - 2 de 2
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:

Coleções

Artigos - Ecologia - IBRC