详细信息
野生朱鹮的种群数量和分布现状 被引量:26
The Current Population and Distribution of Wild Crested Ibis Nipponia nippon
文献类型:期刊文献
中文题名:野生朱鹮的种群数量和分布现状
英文题名:The Current Population and Distribution of Wild Crested Ibis Nipponia nippon
作者:王超[1] 刘冬平[2] 庆保平[1] 丁海华[1] 崔迎亚[3] 叶元兴[3] 路晋[1] 闫鲁[1] 柯立[1] 丁长青[3]
第一作者:王超
机构:[1]陕西汉中朱鹮国家级自然保护区管理局;[2]中国林业科学研究院森林生态环境与保护研究所国家林业局森林保护学重点实验室;[3]北京林业大学自然保护区学院
年份:2014
卷号:49
期号:5
起止页码:666-671
中文期刊名:动物学杂志
外文期刊名:Chinese Journal of Zoology
收录:CSTPCD;;北大核心:【北大核心2011】;CSCD:【CSCD2013_2014】;
基金:国家林业局第二次全国陆生野生动物资源调查专项;国家林业局朱鹮保护专项;中日合作朱鹮保护项目;国家自然科学基金项目(No.31372218)
语种:中文
中文关键词:朱鹮;野生种群;同步调查;夜宿地;扩散
外文关键词:Crested Ibis Nipponia nippon Wild population Simultaneous survey Roosting site Dispersal
分类号:Q958
摘要:2012年9~10月,我们对野生朱鹮(Nipponia nippon)的分布区和潜在分布区进行了调查,共发现其游荡期夜宿地23个,其中20个有朱鹮夜宿,分布在洋县(16个)、宁陕县(3个)和城固县(1个)。对这些夜宿地进行同步调查,共统计到野生朱鹮1 090只,其中97.2%分布在洋县境内。最大的夜宿集群数量为184只,集群数量超过40只的夜宿地共11个,累计停歇的朱鹮占总数的91.7%,表明野生朱鹮在游荡期有趋于集结较大群体夜宿的习性。朱鹮野生种群中当年出生的幼鸟占19.0%,据此估算,截至秋季朱鹮幼鸟的存活率约为67.2%。加强对保护区以外,尤其是野生朱鹮新扩散地区的保护管理,将促进野生朱鹮种群的扩散,进一步增加这一濒危物种抵御风险的能力。
With the 30-years conservation efforts,the wild population of Crested Ibis Nipponia nippon has been increased and the distribution has been expanded to more than ten counties around Yang County of Shaanxi Province in China. However,it is difficult to investigate the exact population size and distribution status of the wild Crested Ibis,although these data were important and needed to conservation and management. From September to October,2012,an integrative survey was conducted on the population size and distribution of wild Crested Ibis. Total of 23 roosting sites were located in 11 counties by field surveying,known sites visiting,community interview and information feedback. A 3-day simultaneous survey was conducted at the 23 roosting sites from 17 th to 19 th October,2012 to count the flocking size in each site. Twenty of 23 roosting sites wereused by 1 090 individuals of Crested Ibis and 97. 2% of them were found in 16 roosting sites that located in Yangxian County. Three roosting sites occurred in Ningshan County,and one in Chenggu County. More than 40 ibises were counted in 11 roosting sites among those used and the largest roosting population was with 184 individuals,which accounted for 91. 7% of the total wild population size( Table 1,Fig. 1). Among the ibis found in the roosting sites,19. 0% of them were fledglings,which indicated 67. 2% of the fledglings could survive to the autumn. To improve the conservation for the new expanded areas of ibis will benefit the wild population dispersal and decrease the survival threats for this endangered species.
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