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4 Acta Theriologica

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Diet of Sorex coronatus in the western Pyrenees

100%

Castien E. , Gosalbez J.

Acta Theriologica

1995

tom 40

nr 2

The diet of Sorex coronatus (Millet, 1828) was studied by the analysis of digestive tracts from 178 individuals collected in Quinto Real Massif, western Pyrenees (north of the Iberian Peninsula). In total, 28 different types of food were determined. The most important prey species, as determined by numerical presence (N) and Simpson's dominance index (D"), were Chilopoda (%N = 12.8; D" = 21.4), Diptera larvae (%N = 22.0; D"= 17.7), Oligochaeta: Opistopora (%N = 11.3; D" = 12.2), Gastropoda (%N = 7.0; D" = 8.7), adult Coleoptera (%N = 6.9; D" = 8.0) and Hemiptera (%N = 6.0; D" = 5.3). Diets of both sexes were similar. The diet of S. coronatus in the study area was similar to the diet of S. araneus described in the literature.

Craniometrical characteristics of Neomys fodiens (Pennant, 1771) (Mammalia, Insectivora) from the northeastern Iberian Peninsula

80%

Lopez-Fuster M. J. , Ventura J. , Miralles M. , Castien E.

Acta Theriologica

1990

tom 35

nr 3-4

Sexual identification of Galemys pyrenaicus

80%

Gonzalez-Esteban J. , Villate I. , Castien E.

Acta Theriologica

2003

tom 48

nr 4

The absence of sexual dimorphism in Pyrenean desman Galemys pyrenaicus (E. Geoffroy, 1811) makes it difficult to sex live animals. This paper presents a method of sexing desmans observing their external genitals. Based in a sampling of 49 animals from the north of Spain, it was possible to identify the penis of males, independently of the age or season.

Age determination of Galemys pyrenaicus

70%

Gonzales-Esteban J. , Villate I. , Castien E. , Rey I. , Gosalbez J.

nr 1

This paper provides a criterion to determine the age of live Pyrenean desmans Galemys pyrenaicus (E. Geoffroy, 1811) by observing dental wear. The criterion is based on the comparison of the estimated age by examining the growth rings on dental sections and the wear observed on the upper canine tooth. Bone matter from different areas in the north of Spain was studied. This species has a high life expectancy. In its natural environment, the desman may live to be over 5 years old.