摘要
云贵高原有黑颈鹤的两个越冬区 :( 1 )云南西部 ;( 2 )云南东北部和贵州西北部。这两个地区的黑颈鹤数量占全球种群的 1 4至 1 3。国际鹤类基金会与云南省林业厅于 2 0 0 1 2 0 0 2年冬季在云贵高原联合对黑颈鹤进行了一次同步计数 ,本次调查覆盖了 1 7个已知或潜在的黑颈鹤越冬地点 ,其中 1 5个地点有黑颈鹤分布。在 2 0 0 2年 1月 1 8日和 1 9日 ,分别记录到 32 61和 31 82只黑颈鹤。本调查还统计了灰鹤、斑头雁和赤麻鸭 ,数量分别为 :灰鹤 80 4和 1 1 5 8只 ;斑头雁 1 75 9和 2 978只 ;赤麻鸭 34 42和 5 4 44只。与 1 991 1 992年冬季进行的调查结果相比 ,黑颈鹤在这一地区的数量增加了 90 %以上。
Yungui Gaoyuan Plateau contains two wintering regions for Black-necked cranes Grus nigricollis:(1)western Yunnan,and (2) northeastern Yunnan and northwestern Guizhou.The two regions support 1/4 to 1/3 of the world's populatin of Black-necked cranes. In the winter of 2001/2002,the International Crane Foundation collaborated with the Yunnan Forestry Bureau to conduct a survey of Black-necked cranes on the Yungui Gaoyuan Plateau.17 known or potential wintering areas of Black-necked cranes were surveyed.In total 3?261 and 3?182 Black-necked cranes,804 and 1?158 Common cranes Grus grus,1?759 and 2?978 Bar-headed geese Anser indicus,and 3?442 and 5?444 Ruddy shelducks Tadorna ferruginea were recorded on the 18?th and 19?th of January 2002 respectively.Black-necked crane numbers have increased by more than 90% over the past decade inthis region.
出处
《动物学杂志》
CAS
CSCD
北大核心
2003年第3期43-46,共4页
Chinese Journal of Zoology
基金
国际鹤类基金会资助
关键词
黑颈鹤
种群
分布
云贵高原
Black-necked crane
Population
Distribution
Yungui Gaoyuan Plateau
