Historia de la regresión del desmán ibérico Galemys pyrenaicus (É. Geoffroy Saint-Hilaire, 1811) en el Sistema Central (Península Ibérica)
Издание: In : Conservation and management of semi-aquatic mammals of southwestern Europe. Munibe Monogr. Nat. Ser. V. 3. P. 19–35.
The populations of the Iberian desman Galemys pyrenaicus (É. Geoffroy Saint-Hilaire, 1811) have suffered a decline in the Central System of the Iberian peninsula since 1960. Several factors have been involved in this process, all of them related to human activities. The first evidences of this decline were gathered in the southern border of its range, between 1995 and 1998. Systematic surveys have been conducted for 15 years in the Central System, from Ayllon to Serra da Estrela, in areas where the presence of the species was previously reported, and the environmental characteristics were apparently adequate. The results were negative in all cases, except in three isolated points. We estimate the decrease of the distribution of the species in the study area at 97%. Evidences suggest that this decline is mainly due to the expansion of the American mink, misuse of freshwater, and establishment of barriers that have contributed to the fragmentation of population.
Тэги: Galemys pyrenaicus, Decline, Central System.