Tana river red colobus and crested mangabey: Results of recent censuses
Tana river red colobus and crested mangabey: Results of recent censuses
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塔纳河红疣猴和冠白眉：最近的人口普查结果
DOI：
10.1002/ajp.1350260108
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发表时间：
1992
影响因子：
2.4
通讯作者：
M. Kinnaird
中科院分区：
文献类型：
--
作者：
B. S. Decker;M. Kinnaird
对肯尼亚东部塔纳河下游河流森林特有的灵长类动物——塔纳河红疣猴（colbus badius rufomitratus）和凤头白眉猴（Cercocebus galeritus galeritus）的普查显示，这两种物种的数量在20世纪70年代中期至80年代之间显著下降。红疣虫的群大小和群数均呈下降趋势；白眉猴的数量减少的只是每片森林的种群数量。两种物种的平均年龄/性别组成在两个时间段之间没有显著变化。这两个物种在摄食和分布生态上的差异可能解释了为什么白眉猴种群数量的下降没有红疣猴严重。20世纪80年代后期3年的普查结果的相似性表明，灵长类动物的数量不再减少。
Censuses of the Tana River red colobus (Colobus badius rufomitratus) and crested mangabey (Cercocebus galeritus galeritus), primate species endemic to riverine forests of the lower Tana River in eastern Kenya, showed significant population declines for both species between the mid‐1970s and 1980s. Red colobus declined in terms of group size and number of groups per forest; the mangabey population declined only in numbers of groups per forest. There was no significant change in mean group age/sex composition between the two time periods for either species. Differences in the feeding and ranging ecology of the two species may explain why the mangabey population suffered a less severe decline than the red colobus. Similarities in census results over 3 years in the late 1980s suggest that the primate populations are no longer decreasing.