Factors affecting the distribution of Sorex samniticus, an endemic Italian shrew, in an heterogeneous landscape

摘要: We studied the factors affecting distribution of an endemic shrewSorex samniticus Altobello, 1926 in Province Siena, central Italy. Distribution data were obtained by examining pellets from 31 barn owlTyto alba sites (roosts) over a period spanning 1974 to 2005. constructed model using logistic regression analysis on presence/absence data. Results show that increase forest dominated byQuercus cerris andCastanea sativa led local extinction this species. confirmed through examination one box, with 3044 prey items deposited layers, documents expansion species area following increased logging ofQuercus forests. Cessation has again absence area. discuss these results perspective ecological network planning, showing utilisation non-detailed maps, such as Corine Land Cover, do not distinguish between various kind broadleaved forests is inadequate describe finer grade habitat selection small mammal.