Sex-Specific Dispersal Patterns in Two Human Populations of Highland New Guinea
Sex-Specific Dispersal Patterns in Two Human Populations of Highland New Guinea
复制标题
新几内亚高原两个人群的性别特异性扩散模式
DOI：
10.1086/284378
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发表时间：
1985
期刊：
影响因子：
--
通讯作者：
J. Long
中科院分区：
文献类型：
--
作者：
J. W. Wood;P. Smouse;J. Long
我们提出了一个模型的因素潜在的男女差异在出生分散，以及最大似然程序的估计和测试。虽然该模型可以扩展到包括任何数量的额外预测变量，但特别注意的是地理距离、人口密度和地方性（philopatry）对扩散的影响。该模型被应用于巴布亚新几内亚高地的两个部落群体Gainj和Kalam收集的数据。分析表明，这些种群中的雄性比雌性更不容易分散，但当它们分散时，更有可能迁移到更远的地方。然而，两性的分散是负密度依赖的（即个体在繁殖之前离开密度较高的地区），密度对两性的影响程度大致相同。将该模型扩展到不同地区的语言差异，表明雄性动物的扩散比雌性动物的扩散更受语言的限制。
We present a model of the factors underlying male-female differences in natal dispersal, along with maximum-likelihood procedures for estimation and testing. Special attention is given the effects of geographic distance, population density, and endemicity (philopatry) on dispersal, although the model can be extended to include any number of additional predictor variables. The model is applied to data collected among the Gainj and Kalam, two tribal populations of highland Papua New Guinea. The analyses suggest that males in these populations are less likely to disperse than females, but more likely to move to more-distant locations when they do disperse. The dispersal of both sexes, however, is negatively density dependent (i.e., individuals move away from areas of higher density before they reproduce), with density affecting both sexes to about the same degree. Extension of the model to include linguistic differences among locations shows that male dispersal is more constrained by language than is female dispersal.