There are two subspecies of Great Bustards in China : Otis tarda tarda, a rare resident of in Kashi region,Tianshan Mountains and Turpan region in xinjiang Uygur Autonomous Region in northwestern China. The other is O...There are two subspecies of Great Bustards in China : Otis tarda tarda, a rare resident of in Kashi region,Tianshan Mountains and Turpan region in xinjiang Uygur Autonomous Region in northwestern China. The other is O. t. dybowskii found in northeastern China. In 840 km2 survey area 150 Great Bustards were found. The average density was 0.81birds/ km2. Reasons for the decline of Great Bustard were analyzed. Conservation measures for the Great Bustards are recommended.展开更多
There are two subspcies of Great Bustards in China. Otis tarda tarda. a rare resident of inKashi region. Tianshan Mountains and Turpan region in Xinjiang Uygur Autonomous Region innorth-- western China.The other is O....There are two subspcies of Great Bustards in China. Otis tarda tarda. a rare resident of inKashi region. Tianshan Mountains and Turpan region in Xinjiang Uygur Autonomous Region innorth-- western China.The other is O. t. dybowskii found in north--eastern China.In summer of 199: our team has surveyed Temeeji at Zhalait Qi and nearby the Horqin YouyiQianqi and Beidagang at Zhenlai County. In an area of about 840sq km were found 150 GreatBustards. The average density was 0. 18 birds/sq. km.Reasons for the decline of Great Bustard: l)Increase in human population and land reclamation. 2)Excess animal husbandry in the grassland. The breeding habitats of Great Bustards in transformingto unfavorable habitats. 3)Eggs and nests of Great Bustards may be trampled by sheep and cattle4）4)Collection of eggs by’ local people and foaching. 5)Medical herb collection and grass cutting. Suchactivities exposed the breeding sites of the Great Bustards.Conservation measures recommended: l)Establish nature in their main breeding and winteringareas. 2)Promotion of’ conservation education. Conservation should also be taught at schools. 3)Regulaie the increase of immigration in habitats impeortant to great Bustards. 4)Strengthening of lawenforcement to stop poaching and control of firearms. 5)Stop land reclamation at the Great Bustardssites and try to recover some degraded grasslands. 6)International cooperation on the conservationand research.展开更多
文摘There are two subspecies of Great Bustards in China : Otis tarda tarda, a rare resident of in Kashi region,Tianshan Mountains and Turpan region in xinjiang Uygur Autonomous Region in northwestern China. The other is O. t. dybowskii found in northeastern China. In 840 km2 survey area 150 Great Bustards were found. The average density was 0.81birds/ km2. Reasons for the decline of Great Bustard were analyzed. Conservation measures for the Great Bustards are recommended.
文摘There are two subspcies of Great Bustards in China. Otis tarda tarda. a rare resident of inKashi region. Tianshan Mountains and Turpan region in Xinjiang Uygur Autonomous Region innorth-- western China.The other is O. t. dybowskii found in north--eastern China.In summer of 199: our team has surveyed Temeeji at Zhalait Qi and nearby the Horqin YouyiQianqi and Beidagang at Zhenlai County. In an area of about 840sq km were found 150 GreatBustards. The average density was 0. 18 birds/sq. km.Reasons for the decline of Great Bustard: l)Increase in human population and land reclamation. 2)Excess animal husbandry in the grassland. The breeding habitats of Great Bustards in transformingto unfavorable habitats. 3)Eggs and nests of Great Bustards may be trampled by sheep and cattle4）4)Collection of eggs by’ local people and foaching. 5)Medical herb collection and grass cutting. Suchactivities exposed the breeding sites of the Great Bustards.Conservation measures recommended: l)Establish nature in their main breeding and winteringareas. 2)Promotion of’ conservation education. Conservation should also be taught at schools. 3)Regulaie the increase of immigration in habitats impeortant to great Bustards. 4)Strengthening of lawenforcement to stop poaching and control of firearms. 5)Stop land reclamation at the Great Bustardssites and try to recover some degraded grasslands. 6)International cooperation on the conservationand research.
