Seasonal variation in the diet of South African Galagos
Seasonal variation in the diet of South African Galagos
复制标题
南非加拉戈斯饮食的季节性变化
DOI：
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发表时间：
1986
影响因子：
2.5
通讯作者：
C. Harcourt
中科院分区：
文献类型：
--
作者：
C. Harcourt
本文研究了南非两种乳鼠（Galago senegalensis和Galago crassicaudatus）的摄食行为和食性与气候季节变化的关系。研究的人群是异地的，但都主要以Acaciagum和无脊椎动物为食。通过直接观察每个物种的放射性项圈雌性动物和分析粪便样本收集有关其饮食的数据。在饮食的差异，发现物种之间的季节内和物种之间的季节。两个人在冬天比夏天花更多的时间喂口香糖。猎物的大小和类型不同的物种在夏季，但在冬季收敛。各季节的取食量基本一致。塞内加尔则显著下降。在冬天的时候会有厚尾龙这些观察结果被解释在饲养策略，这被认为是一个函数的两个galago物种的身体大小的差异种间差异。
The feeding behavior and diet of two species of bushbaby, Galago senegalensisand Galago crassicaudatus,in South Africa were examined in relation to seasonal changes in climate. The populations studied were allopatric, but both fed predominantly on Acaciagum and invertebrates. Data on their diet were collected by direct observation of a radiocollared female of each species and by analysis of fecal samples. Differences in diet were found between the species within seasons and within species between the seasons. Both spent more time gum-feeding in winter than in summer. Prey size and type differed between the species in summer but converged in winter. The quantity of insects taken was fairly similar between seasons for G. senegalensisbut dropped considerably for G. crassicaudatusin winter. These observations are interpreted in terms of interspecific differences in feeding strategies, which are considered to be a function of the difference in body size of the two galago species.