Population size in Mongolia is estimated to consist of 463 mature individuals, ±92 (Adiya and Dovchindorj,2005). This taxon is currently threatened byhybridisation, disease, habitat loss, pollution, andextreme weather conditions. Generation lengthhas been estimated as 20 years based on data from Nowak (1991). Camelus bactrianus ferus qualifies as Endangered under Criterion C1 as the smallpopulation is estimated to decline by 20% over thenext two generations due to the impact of threats.The assessment remains unchanged following application of regional criteria as there is no significant immigration from adjacent countries.

No data on populationsizes are available at present, although it is knownthat threats, particularly exploitation is having a largeimpact upon this species, coupled with hybridisationand habitat degradation. Generation length has beenestimated as four years, based on data from Nowak(1991). As exploitation is known to be causing apopulation decline, when data becomes available thisspecies may be re-categorised as threatened under Criterion A. There is a small chance ofimmigration from adjacent populations of S. s. sibirica, although levels of hunting pressureon these populations are not known, therefore the assessment remains unchanged followingapplication of regional criteria.

In 2003, the population was estimated to consist of 19,000-20,000 individuals (B. Lkhagvasuren, pers. comm.), but is declining due to exploitation, a decline inreproductive rates, and habitat loss/degradation. Generation length has been estimated as tenyears, based on data from Nowak (1991). The off-take rate via illegal hunting may be as manyas 3,000 individuals per year (Wingard and Zahler, 2006). This would result in a 5% declineper year and over a 20 year period could result in a greater than 60% decline. The populationis known to have declined and a population reduction of at least 50% over the next threegenerations is inferred. Therefore this species is categorised as Endangered under CriterionA4abd. As the adjacent population in China does not appear to be expanding, the chance of any 'rescue' effect is small, so the assessment remains unchanged following application ofregional criteria.

Previously categorised as Extinct in the Wild from the 1960s untilthe most recent assessment in 1996. However, successful reintroductions at Hustai NationalPark, Tahiin Tal Nature Reserve, and Homiin Tal have qualifi ed this species for reassessment.The population now consists of greater than 250 mature individuals of which many have hadviable offspring. This species would qualify for Endangered if it were not for the fi ve yearrule which requires that a species must not meet any of the criteria of the higher category ofthreat for at least fi ve years before it can be listed in a lower category of threat. Therefore,Przewalski's horse is currently listed as Critically Endangered and if current trends continue itwill be listed as Endangered in the near future. This taxon is threatened by hybridisation withdomestic horses, loss of genetic diversity, and disease. The assessment remains unchangedfollowing application of regional criteria as there is no immigration from adjacent countries.

This taxon has a very small population, currently estimated to bebetween 25 and 40 individuals (Batsaikhan et al., 2004b). Population size is believed to haveremained relatively stable since the 1970s, but low reproductive rates, the potential effects ofinbreeding, and extreme environmental conditions continue to constitute severe threats. Asthe population consists of fewer than 50 mature individuals, this taxon qualifi es as CriticallyEndangered under Criterion D. The assessment remains unchanged following application ofregional criteria as this taxon is believed to be endemic to Mongolia.

Inadequateinformation on distribution, population sizeand trends, or the impact of threats.

Inadequate information ondistribution, population size and trends, or the impactof threats.

This species has a largepopulation size and a wide distribution. No decline inpopulation size has been detected.

This species has a largepopulation size and a wide distribution. No decline inpopulation size has been detected.

This species has a largepopulation size and a wide distribution. No decline inpopulation size has been detected.