Intraspecific Variation in the Vocalizations and Hand Pad Morphology of Southern Lesser Bush Babies (Galago moholi): A Comparison with G. senegalensis
Intraspecific Variation in the Vocalizations and Hand Pad Morphology of Southern Lesser Bush Babies (Galago moholi): A Comparison with G. senegalensis
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南方小灌木宝宝 (Galago moholi) 发声和手垫形态的种内变异：与塞内加尔 G. senegalensis 的比较
DOI：
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发表时间：
2000
影响因子：
2.5
通讯作者：
S. Pullen
中科院分区：
文献类型：
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作者：
M. Anderson;L. Ambrose;S. Bearder;A. Dixson;S. Pullen
以往的研究表明，在分类的秘密夜间灵长类动物，如丛林婴儿的发声剧目和手（掌）垫特征的分类价值。然而，没有任何研究包括任何一个物种的地理范围内的定量比较。我们调查了种内变化的调用和手垫的南部小灌木宝宝（Galago moholi）的特点，使用北方小灌木宝宝（Galago senegalensis）种间比较。通过对非洲南部沿着1500 km样带不同地区的鸣声进行分析，发现莫霍氏原羚的种内变异程度较低，而与毛额原羚的同源鸣声类型进行比较，发现毛额原羚的种内变异程度较低。塞内加尔人发现它们有很大的不同。两个物种的范围内的掌垫测量也显示出低水平的种内变异和相对较高的种间变异。这些研究结果表明，声音和掌垫的特点可以作为一致的措施之间的差异，看起来几乎相同的物种。这些方法提供了一个实用的方法来区分隐种，无论是在外地，在圈养，或在掌垫的情况下，保存标本。
Previous studies have shown the taxonomic value of vocal repertoires and hand (volar) pad characteristics in the classification of cryptic nocturnal primates such as bush babies. However, no study included quantitative comparisons within the geographical range of any one species. We investigated levels of intraspecific variation in calls and hand pad characteristics of the southern lesser bush baby (Galago moholi), using the northern lesser bush baby (Galago senegalensis) for interspecific comparisons. Examination of calls recorded from different regions along a transect of 1500 km across southern Africa revealed low levels of intraspecific variation in Galago moholi, whereas comparisons with homologous call-types in G. senegalensis revealed them to be significantly different. Volar pad measurements across the ranges of both species also showed low levels of intraspecific variation and relatively high interspecific variation. These findings demonstrate that vocal and volar pad characteristics can be used as consistent measures of difference between species that look almost identical. These methods provide a practical means of distinguishing between cryptic species, whether in the field, in captivity, or, in the case of volar pads, of preserved specimens.