生物多样性 ›› 1997, Vol. 05 ›› Issue (2): 84-89.  DOI: 10.17520/biods.1997014  cstr: 32101.14.biods.1997014

所属专题： 青藏高原生物多样性与生态安全

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黑颈鹤(Grus nigricollus)种群生态及濒危等级评估*

李来兴   

  1. (中国科学院西北高原生物研究所, 　西宁　810001)
  • 收稿日期:1995-12-20 修回日期:1996-08-13 出版日期:1997-05-20 发布日期:1997-05-20

Population ecology and endangered categories evaluation of the Black-necked crane (Grus nigricollus)

Li Laixin   

  1. Northwest Plateau Institute of Biology ,Academia Sinica ,Xining 810001
  • Received:1995-12-20 Revised:1996-08-13 Online:1997-05-20 Published:1997-05-20

PDF (PC)

8578

被引次数

Baidu 3 | CSCD 4

摘要：

黑颈鹤的种群总量有5000～6000只个体，主要分布在青藏高原和云贵高原，分布区约22×105 km2，占有面积约5400 km2。青藏高原北部和西部为其繁殖区，越冬区主要在雅鲁藏布江河谷中段、喜马拉雅山脉南坡及云贵高原部分区域，青藏高原东部为其迁徙途径之地。越冬时以家族、同种群及混合群(主要与灰鹤Grus grus和斑头雁Anser indicus)形式集群活动。繁殖期分化为非繁殖群和繁殖对(Breeding pair)两种类型。繁殖对能否成功地占有领域是繁殖成败的关键。笔者认为该物种依IUCN(1994)标准应列为易危级(Vulnerable,VU)

关键词: 红树林潮沟, 鱼类, 季节数量分布, 相似性, 生物多样性

Abstract

According to field investigation,the population of the black-necked crane (Grus nigricollus )is determined of 5000～6000 individuals distributed mainly through Qinghai-Xizang (Tibet) Plateau and Yunnan-Guizhou Plateau.Its extent of occurrence is more than 22×105 Km2 and area of occupancy is more than 5400 Km2.Breeding area has been found in northern and west Tibet Plateau and wintering area in the middle valley of Tsangpo,parts of Yunnan-Guizhou Plateau and southern slope of Himalaya.The migratory routes are over the southeast Tibet Plateau.In wintering area,the Black-necked crane acts with family,same species group and mixed species group such as Common crane (Grus grus) and Bar-headed geese (Anser indicus).In breeding area,the Black-necked crane are separated  into no-breeding group and breeding pairs.Territory occupied by breeding pair may be a key to breeding successfully.This species is evaluated as a vulnerable (VU) species according to the endangred categories of IUCN (1994).

Key words: mangrove creek, fish, seasonal numerical distribution, similarity, species diversity

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