Noninvasive genetic tracking of the endangered Pyrenean brown bear population.

摘要: Pyrenean brown bears Ursus arctos are threatened with extinction. Management efforts to preserve this population require a comprehensive knowledge of the number and sex remaining individuals their respective home ranges. This goal has been achieved using combination noninvasive genetic sampling hair faeces collected in field corresponding track size data. Genotypic data were at 24 microsatellite loci rigorous multiple-tubes approach avoid genotyping errors associated low quantities DNA. Based on data, was shown be composed least one yearling, three adult males, female. These indicate that extinction bear is imminent without augmentation. To gene pool increase diversity, we suggest managers consider augmentation only females. study demonstrates endangered small populations mammals can obtained sampling.