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贵州大沙河国家级自然保护区黑叶猴种群数量与分布

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贵州大沙河国家级自然保护区是黑叶猴(Trachypithecus francoisi)野生种群的重要集中分布地之一,为查清当前该区域黑叶猴的种群数量与分布,于2021年7月—2022年12月采用访问调查、直接观察猴群计数和夜宿地调查法对保护区及周边的黑叶猴种群数量和分布进行调查研究.结果表明:大沙河国家级自然保护区及周边共有黑叶猴27群166只,群体密度为0.10群/km2,种群密度为0.62只/km2,最小群仅2只,最大群为16只,猴群平均为(6±4)只,成年个体总体雌雄性比约为2∶1.黑叶猴集中分布于保护区内的梅江—水翠河—铁厂河片区(22群154只),97.00%的群体分布于自然保护区管辖范围内,其中所调查猴群中86.75%分布在距河流轴线缓冲距1 km的区域内.研究结果可为该区域后续黑叶猴的长期监测和保护管理提供数据基础.
A Preliminary Field Survey on the Population and Distribution of Fran?ois'Langur in Dashahe National Nature Reserve,Guizhou Province,China
Guizhou Dashahe National Nature Reserve(DNNR)is one of the important inhabiting areas of François'lan-gurs(Trachypithecus francoisi)in the world.In order to investigate the status of the current population and distribution of François'langurs in this area,we conducted a year-around field survey by means of randomized sampling questionnaire,direct observation counting,and night caves survey in whole reserve and its surrounding area,from July 2021 to December 2022.The results showed that:27 groups including 166 individuals were recorded in the DNNR,the population density of François'langurs in the whole reserve was 0.62 individuals/km2,and the group density was 0.10 groups/km2,group size:Min:2,Max:16,mean±SD:(6±4),the overall sex ratio among adult individuals is about 2∶1(female/male).The François'langurs mainly distributed on both sides of the valley regions where from Meijiang River to Shuicui River and to the Tiechang River(22 groups,154 individuals)within the reserve,and 97.00%of the individuals inhabited within the range of DNNR,of which about 86.75%of the individuals distributed within the buffer area within the distance of 1 km from the river axis.Our study can provide basic information for the subsequent long-term population monitoring and for better conservation management of François'langurs in DNNR.

François'langur(Trachyp-ithecus francoisi)Population quantityPopulation distributionField surveyGuizhou Dashahe National Nature Reserve

胡淋正、勾伟、王万海、冯育才、杨雄威、粟海军

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贵州大学林学院,贵阳,550025

贵州大学生物多样性与自然保护研究中心,贵阳,550025

贵州喀斯特环境生态系统教育部野外科学观测研究站,贵阳,550025

贵州大沙河国家级自然保护区管理局,道真,563500

贵阳阿哈湖国家湿地公园管理处,贵阳,550002

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黑叶猴 种群数量 种群分布 野外调查 贵州大沙河国家级自然保护区

国家级自然保护区中央林业补助资金项目(2021)贵州省林业科研项目贵州省科技计划

黔林科合[2023]15号黔科中引地[2022]4022

2024

10.12375/ysdwxb.20240101

野生动物学报
东北林业大学 中国动物园协会

野生动物学报

北大核心
影响因子：0.271
ISSN：1000-0127
年,卷(期)：2024.45(1)
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