Swimming behavior and performance of the marsh rat Holochilus vulpinus (Brants, 1827) (Cricetidae, Sigmodontinae).

 

Título: Swimming behavior and performance of the
marsh rat Holochilus vulpinus (Brants, 1827)
(Cricetidae, Sigmodontinae).
Identificador de recurso:  
Fecha: 2020-01-01
Autor: Torres, Julio.
Otros colaboradores: Santori, Ricardo T. 

Rocha-Barbosa, Oscar.

Candela, Adriana M.

Pardiñas, Ulyses F.J.

Editorial: Mammalia
Derechos: Acceso abierto

 

Descripción Semiaquatic habits evolved in several Sigmodontinae rodent species, but this issue remains poorly studied. The marsh rat Holochilus vulpinus (Brants, 1827) has been associated with palustrine wetland environments
and exhibits several morphological traits related
to the semiaquatic habit. However, its swimming behavior and the way its morphological specializations contribute to it have not been evaluated so far in this species. This note focuses on describing and quantifying the swimming behavior and swimming performance of H. vulpinus. In order to address these issues, five individuals of H. vulpinus, four adults and one subadult, were filmed while swimming and their performance was quantified. The obtained results indicate that the swimming mode is bipedal paddling, alternating the stroke of the hind feet. The quantitative indicators also qualify H. vulpinus as a good swimmer compared to other terrestrial and semiaquatic
mammals.
Claves aquatic locomotion; locomotor behavior; Oryzomyini; semiaquatic mammals.
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Nombre de archivo 2020-01-01