Intrinsic and extrinsic correlates of range change in mammals

The global conservation status of all mammals has been evaluated for the first time in 2008, and in 2010 Hoffman et al. (2010) made a retrospective assessment related to the year 1996. A recent study by Di Marco et al. (2014) assigned species to a threat category in 1970, based on information in the published literature. Despite the great efforts made in understanding the situation of mammals in the recent past, most of the existing studies lack information on changes in the spatial distribution of the species. In this study we aimed at filling this gap by collecting data on the distribution of mammals in the 1970s, when this information was available and reliable, and we then compared the …