Craniometrics of the orange mouse opossum Marmosa xerophila [Didelphimorphia: Didelphidae] in Venezuela

• Autorzy: Lopez-Fuster M. J. , Salazar M. , Perez-Hernandez R. , Ventura J.
• Języki publikacji: EN

Abstrakty

EN

Skull size variation in the orange mouse opossum Marmosa xerophila Handley and Gordon, 1979 in Venezuela was analysed by sex and geographic location. Morphometric relationships between the species and the closely related M. robinsoni Bangs, 1898 were also studied. Results showed that M. xerophila is a sexually dimorphic and geo­graphically homogeneous species. Males had larger skulls than females, although dimorphism was mainly related to length, height, and some dental parameters. Inter­specific comparisons revealed that M. xerophila has a smaller skull than M. robinsoni, even in the sympatric area where the smallest specimens of M. robinsoni occur. Dis­criminant function analyses between these species, for males and females separately, provided accurate classification functions that allowed correct specific determination. In Venezuela, M. xerophila lives in arid lands with xerophilous thorny woodland and scrub, up to 90 m above see level.

Słowa kluczowe

EN

Marmosa xerophila; Didelphidae; Marmosa robinsoni; craniometry; Didelphimorphia; orange mouse opossum; Venezuela

• Wydawca: -
• Czasopismo: Acta Theriologica
• Rocznik: 2002
• Tom: 47
• Numer: 2
• Opis fizyczny: p.201-209,fig.,ref.

Twórcy

autor

Lopez-Fuster M. J.

• Universitat de Barcelona, Avgda. Diagonal 645, 08028-Barcelona, Spain

autor

Salazar M.

autor

Perez-Hernandez R.

autor

Ventura J.

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