![]() It is concluded that the pronghorn will continue to be endangered despite these translocation programmes. Competition with cattle for grazing would occur under drought conditions. Births averaged 0.17 +/- 0.075 and 4 and 3 deaths were recorded in 19, respectively. Of the total diet consumed by the pronghorns, forbs ranked highest (75 %) while grasses and shrubs were consumed in almost similar quantities (12.5 % of each). ![]() Fifty-nine vegetation species were identified in the pronghorn diet and the poisonous plants: Solanum rostratum and Solanum eleagnifolium were determined in the pronghorn diet all-year round, though percentages consumed varied with season (0.96 % in wet season versus 11.2 % in dry season). ![]() Greatest diversity was obtained in the natural grass community (0.77), followed by halophyte grass community (0.74) and rosetophyll shrubs (0.53). One hundred and seventeen vegetation species belonging to 32 different species were identified. Vegetation characteristics, botanical composition of the pronghorn diet and birth and mortality rates were monitored. This study covering three years (1995-1998) was conducted to evaluate the factors determining the success of the reintroduction of pronghorn in the Mexican state of Coahuila. The pronghorn (Antilocapra americana mexicana), an endemic ruminant species of North America is classified as an endangered species.
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