Comparative study of Bechstein's bats in contrasting climates

ISBN-13: 9783847317043 / Angielski / Miękka / 2013 / 172 str.

Napal Fraile María

Opis

Myotis bechsteinii is a European forest bat species. Its considered rare and only locally abundant over its wide distribution range. Current rareness- in strong contrast to the abundance in the fossil register- and its distribution restricted to large masses of well preserved deciduous forest, suggest that Myotis bechsteinii is retreating, as a consequence of climatic factors, deforestation or both. The comparative study we conducted does not support the vision of the Mediterranean area as suboptimal for the species, but rather the opposite. Thus, the reported scarcity of this bat in the area seems to be more related to degradation and rarefaction of preferred habitats- deciduous forests- than to bioclimatic conditionings. Genetic structure also reflects the prolonged isolation of populations, related to deforestation and to low altitude mountains acting as corridors promoting connectivity. Given the slow and limited responsiveness of Myotis bechsteinii to perturbations to their habitat or populations, the present distribution- smaller than the potential habitat- may reflect the history of fragmentation and degradation of forests, even at finer spatial scales.

O autorze

The author, María Napal, earned her Degree in Biology in 2006, before she started working in the Behavioural ecology and Evolution of Bats Research group (University of the Basque Country). In 2011 she was awarded a PhD in Biology for her work in the ecology of the Bechstein s bat Myotis bechsteinii.