We defined the calibration area as equivalent to M based on previous
knowledge on the species and its dispersal potential (Barve et al.,
2011), as follows. First, we used a proposed map of the historical
range of U. thibetanus as a proxy of the geographic areas where the species
was known or believed to have resided in the past (Garshelis and
Steinmetz, 2008). Then, as an estimation of the minimumdispersal potential
of the species inmainland,we measured thewidth of the narrow
area of the species' range in the Himalayan Mountains corridor
(Garshelis and Steinmetz, 2008). The resulting distance, 250 km, was
used as a buffer around the historical range of U. thibetanus. The
known historical range buffered by our hypothesis of the movement capacity
of the species was the final M area used for model calibration