Between the 1940s and 1960sthe range and population size of this species declined inMongolia by 30% (Lkhagvasuren et al., 2001) and by the1990s, the population was estimated to consist of 60,000individuals (Amgalan, 1995). Exploitation is the primarycause for this population decline, but habitat degradation,competition for resources and human disturbance alsoconstitute threats to this species. Generation length hasbeen estimated as fi ve years based on data from Nowak (1991). The causes of decline areexpected to result in a population reduction of at least 30% over the next three generations,therefore Gazella subgutturosa qualifi es as Vulnerable under Criterion A3cde. The assessmentremains unchanged following application of regional criteria as there is no signifi cantimmigration from adjacent countries.