DELIBES DE CASTRO , Miguel

Las Ginetas de Ibiza habían sido consideradas hasta ahora como G. g. balearica. El estudio de 50 cráneos y 38 pieles (Cuadro 1) permite, sin embargo, caracterizarlas como una nueva subespecie, Genetta genetta isabelae n. ssp., debido fundamentalmente a su pequeño tamaño. Se consideran caracteres con valor diagnóstico LCB (longitud...

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Eighty-one skulls of Spanish Genetta genetta with adult teeth were studied, of which only 45 (19 females and 26 males) had been determined as to their sexo. In general, the male skulls and dentition tend to be larger than those of the female, although their respective measurements overlap. After having tried various methods (figures 2, 3 and...

Up to date the lberian common vole, Microtus arvalis asturianus, it was considered as an exclusive inhabitant of some mountainous chains of Central and Northern Spain. However it has been found in pellets of Tyío alba from different localities of the Duero Plain (Tab. 1 and Fig. 1), where the annual rainfall is under 400 mm. and biological...

En el presente trabajo, tras exponer diversas teorías sobre la significación del tamaño de la puesta en las aves, y abordar el problema de la eclosión asincrónica y la mortalidad entre los pollos de las Rapaces, se proporciona información acerca del tamaño de la puesta y el promedio de jóvenes volanderos por nido con éxito entre las Aguilas...

Se estudia un ídolo-espátula de hueso, sobre radio humano, que procede de una tumba colectiva neolítica de la provincia de Valladolid (España). Los autores formulan diversas hipótesis sobre su significado

Comisión Asesora de Investigación Científica y Técnica de España (CAICYT)

La valutazione della consistenza di una popolazione di Volpe, mediante censimenti assoluti o relativi, è di difficile soluzione. Tra i diversi metodi di conteggio impiegati, nessuno si è rivelato ottimale e universale. Tuttavia nessuno è stato utilizzato per popolazioni di consistenza nota. Qui esaminiamo la validità di 14 metodi impiegati per...

Food habits of four species of foxes iVulpes vulp es, Canis culp aeus, Canis griseus and Urocyon cinereoargenteus) in mediterranean areas of Spain, France. Italy, Australia, Chile and United States of America were compared. The Iberian and Australian foxes appear as insectivores, while the Italian foxes eat fruit and insects and the French ones...

Data are presented on mortality rates of the Iberian lynx Felis pardina in Doñana National Park and the surrounding area in southwestern Spain, collected from 1983 to 1989. Data from radio-tagged lynxes and records of lynx mortality were used to assess causes of death. Annual mortality rate, estimated by using the Heisey and Fuller methodology,...

Analysed are 1537 scats of lynxes and 24 carcasses of deer killed by lynxes from 1973 to 1984 at the Doñana Biological Reserve. Lynx predation upon deer is low (0%-8% of the prey). and concentrates in Autumn-Winter, when rabbit supply and doe-fawn relationships decrease. Fallow deer are statistically chosen as prey more often than red deer, and...

Consejo Superior de Investigaciones Científicas de España (CSIC) y Dirección General de Investigación Científica y Técnica de España (DGICTYT) PB87-0405, PB90-1018 y PB92-0101

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