Group composition in wild and commensal hamadryas baboons: A comparative study in Saudi Arabia
Group composition in wild and commensal hamadryas baboons: A comparative study in Saudi Arabia
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野生和共生狒狒的群体组成：沙特阿拉伯的比较研究
DOI：
10.1007/bf02547831
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发表时间：
1992
影响因子：
2.5
通讯作者：
J. Gautier
中科院分区：
文献类型：
--
作者：
S. Biquand;Véronique Biquand;A. Boug;J. Gautier
在沙特阿拉伯境内的整个分布区对Papio hamadryas进行了调查，并在0至2 300米的高度进行了观测。野生种群沿着整个海拔范围出现，而野生种群仅在海拔850米以上发现。没有发现组大小随海拔高度的变化。野生和野生种群的比较表明如下。(1)他们在年龄和性别类别、总体成人性别比例和群体规模方面的组成没有显著差异。(2)这两个群体的群体以相似的比例包括三种类型的政党：一个男性单位（>70%），两个男性单位（>13%），以及一些其他组成可变的单位。(3)的平均大小的双头党是显着大于在野生种群，特别是一个男性单位是较大的双头种群由于大量的女性每男性。因此，雌性在野生种群中的分布比在野生种群中的分布更不公平。(4)最后，在两个男性单位的女性人数增加海拔。这些差异进行了讨论的食物供应和捕食者的压力，并与其他阿拉伯和埃塞俄比亚人口获得的结果进行比较。
Papio hamadryas was surveyed throughout its range in Saudi Arabia and was observed at altitudes ranging from 0 to 2300 m. Wild populations occur along the whole range of altitude, while commensal populations are only found above 850 m altitude. No variation in group size was found with altitude. Comparison of wild and commensal populations showed the following. (1) Their composition in terms of age and sex classes, overall adult sex ratios, and group size does not significantly differ. (2) Groups of both populations include, in similar proportions, three types of parties: one-male units (>70%), two-male units (>13%), and a few other units of variable composition. (3) The mean size of commensal parties is significantly larger than in the wild population; specifically one-male units are larger in the commensal population due to a larger number of females per male. Thus, female distribution in commensal groups is more inequitable than that in wild groups. (4) Finally, the number of females included in two-male units increases with altitude. These differences are discussed in terms of food availability and predator pressure and are compared with results obtained on other Arabian and Ethiopian populations.