Dissertation Research: Lifetime Reproductive Success and Dispersal Patterns in Male Baboons (Papio cynocephalus)

本研究的目标是：首先，测量雄性狒狒个体终生生殖成功（LRS）的组成部分，将LRS的差异归因于LRS的不同组成部分，并确定个体的特定特征作为这种差异的来源。第二，检验以下假设：(1)雄性狒狒从有雌性亲属的群体中分散的可能性是分散成本和避免近亲繁殖抑制的好处的函数；(2)雄性狒狒通过改变分散模式来降低与分散相关的死亡成本；（三）雄性通过改变散布模式来增加繁殖力。研究对象是肯尼亚安博塞利国家公园的野生雄性狒狒。它们的生活史和分布模式正以两种方式进行调查，一种是详细的横截面行为研究，另一种是长期人口统计数据分析。将从这两类数据中估计LRS的组成部分。

The goals of the proposed study are: first, to measure components of lifetime reproductive success (LRS) for individual male baboons, to attribute variance in LRS to the different components of LRS, and to identify particular traits of individuals as the sources of this variance. Second, to test the following hypotheses: (i) likelihood that a male baboon will disperse from groups in which he has female relatives is a function of the costs of dispersal and the benefits of avoiding inbreeding depression, (ii) males decrease mortality costs associated with dispersal by altering dispersal patterns, and (iii) males increase fecundity by altering dispersal patterns. The subjects are wild male baboons (Papio cycynocephalus) in Amboseli National Park, Kenya. Their life histories and dispersal patterns are being investigated in two ways, through a detailed cross-sectional behavioral study and through analysis of long-term demographic data. From these two types of data components of LRS will be estimated.