McShea and colleagues concluded that thamin can only survive in the larger patches of
habitat (indaing or dry forest) large enough to escape the impact of villages on the
forests. Of six landscape variables measured, only core area size was a significant
predictor for the presence of thamin: there were no cases of populations of thamin in
forest areas less than 100 km2 in size (McShea et al., 1999).
Disturbance by humans seems to be the most important force contributing to the decline
of thamin populations. The largest reservoir of thamin resides in Chatthin Wildlife
Sanctuary. However, there are about 19 villages surrounding the Sanctuary and three
villages contained within the sanctuary boundaries (Myint Aung, pers. comm.).
Populations in all the villages are increasing at a rate of approximately 3% per year
(Myint Aung, pers. comm.). Combined, the three villages within CWS contain 269
households consisting of 724 individuals (Myint Aung, pers. comm.); the largest has
about 500 people.
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