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首页> 外文期刊>American journal of primatology >Latitudinal Variation in Cranial Dimorphism in Macaca fascicularis
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Latitudinal Variation in Cranial Dimorphism in Macaca fascicularis

机译：猕猴的颅骨二态性的纬度变化

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This study examines latitudinal and insular variation in the expression of sexual dimorphism in cranial length in three geographical groupings of Macaca fascicularis. In addition, the relationship between cranial length dimorphism (CLD) and sex-specific size is examined. The results of the study identified a significant relationship between CLD and latitude for only one of the three geographic groupings. Sex-specific relationships between cranial length and CLD were detected. The pattern of these relationships varied by geographic grouping. This study is important because it demonstrates that despite very similar levels of CLD in a single primate species, there exists important geographic variability in the correlates of that dimorphism. I suggest that geographically varying ecological factors may influence sex-specific natural selection and the intensity of CLD in M. fascicularis. Gaining a better understanding of this geographical variability will require that future research examines morphological variation, including CLD, within its corresponding ecological and social contexts. Such research should be comparative, and incorporate multiple geographically separated populations with disparate environmental settings.
机译：这项研究检查了三个猕猴的地理分组在颅长上性二态性表达的纬度和经度变化。另外，检查了颅长二态性（CLD）和性别特异性大小之间的关系。研究结果确定了三种地理分组中只有一种的CLD与纬度之间存在显着关系。检测到颅长和CLD之间的性别特异性关系。这些关系的模式因地理分组而异。这项研究很重要，因为它表明尽管单个灵长类物种的CLD水平非常相似，但该双态性的相关性中仍存在重要的地理变异性。我建议，地理上变化的生态因素可能会影响按性别划分的自然选择和fascicularis的CLD强度。为了更好地了解这种地理变异性，需要未来的研究在其相应的生态和社会环境下研究包括CLD在内的形态变异。此类研究应具有可比性，并应将多个地理环境各异且环境不同的人群纳入研究范围。

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