Doctoral Dissertation Improvement: Alternative Mating Strategies: "Following" in Male Olive Baboons (Papio hamadryas anubis)

博士论文改进：替代交配策略：雄性橄榄狒狒（Papio hamadryas anubis）的“跟随”

• 批准号: 0850352
• 负责人: Ryne Palombit
• 金额: $ 1.5万
• 依托单位: Rutgers University New Brunswick
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-04-01 至 2011-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0850352&HistoricalAwards=false
• 关键词: Doctoral; Dissertation; Improvement; Alternative; Mating

Behavioral ecologists have developed theory arguing that alternative mating strategies allow individuals to maximize reproductive success by varying the expression of traits in light of the individual's condition (e.g., body size or dominance status) or environmental circumstances. Little is known, however, about how individuals may pursue different strategies that depend upon varying conditions. The primary mating strategy of olive baboon (Papio hamadryas anubis) males is the well known sexual consortship. Such consortships are characterized by close spatial proximity, male defense of his access to the female, and relatively high rates of copulation between a male and estrous (fertile) female. What is less often appreciated about this view of the olive baboon mating system is that such consorting pairs are typically accompanied by a retinue of one to eight 'follower' males. These males maintain variable proximity to the consorting pair, interacting with both other 'followers' and the consorting pair. The aim of this project is to examine the evolutionary significance of the 'following' strategy. The first objective is to determine the costs and benefits of alternative mating strategies for males. The second objective is to examine the impact of male condition on the expression of alternative mating strategies. The third objective is to determine if females influence these strategies. Behavioral data will be collected on two habituated groups of olive baboons in Laikipia District, Kenya for 18 months. Activity and social behavior will be recorded during ten minute focal samples of consorting pairs and any associated 'followers'. Synthesizing genetic paternity analysis with these behavioral data will examine the benefits of 'following'.Currently, there is a gap in our understanding of alternative strategies: nonmammalian taxa are well studied and provide the foundation of relevant theory. There are, however, very few relevant detailed data from nonhuman primates which are of particular interest as this taxon exhibits relatively greater degrees of behavioral flexibility than the nonmammalian taxa. Therefore, the expression of alternative strategies in nonhuman primates provides an opportunity to incorporate more meaningfully behaviorally flexible taxa. In addition, alternative strategies are thought to be important throughout human evolution and help explain variation in mating behavior in contemporary human populations. Thus, there are compelling reasons to scrutinize further the nonhuman primates, in order to expand a currently limited base of animal models that facilitates understanding of the evolution of such strategies.

行为生态学家已经发展出理论，认为替代性交配策略允许个体根据个体的状况通过改变性状的表达来最大限度地提高繁殖成功率（例如，身体大小或优势地位）或环境情况。 然而，人们对个体如何根据不同的条件采取不同的策略知之甚少。 雄性狒狒的主要交配策略是众所周知的性联合。 这种联盟的特点是空间接近，男性的防御，他接近女性，男性和发情（可育）女性之间的交配率相对较高。 关于这种橄榄狒狒交配系统的观点，人们不太了解的是，这种交配对通常由一到八个“追随者”雄性组成的随从伴随。 这些男性保持变量接近配偶对，与其他“追随者”和配偶对相互作用。 这个项目的目的是研究“跟随”策略的进化意义。 第一个目标是确定男性替代交配策略的成本和收益。第二个目标是研究男性状况对替代交配策略表达的影响。 第三个目标是确定女性是否影响这些策略。 将在肯尼亚莱基皮亚区收集两组习惯性橄榄狒狒的行为数据，为期18个月。 活动和社会行为将被记录在十分钟的焦点样本的配对和任何相关的“追随者”。 综合遗传亲子关系分析与这些行为数据将检查的好处“跟随”。目前，有一个差距，我们的理解替代策略：非哺乳动物类群研究得很好，并提供相关的理论基础。 然而，很少有相关的详细数据，从非人类灵长类动物是特别感兴趣的，因为这个分类群表现出相对较大程度的行为灵活性比非哺乳动物类群。 因此，在非人灵长类动物中表达替代策略提供了一个机会，将更有意义的行为灵活的类群。 此外，替代策略被认为在整个人类进化过程中很重要，有助于解释当代人类群体中交配行为的变化。 因此，有令人信服的理由进一步审查非人类灵长类动物，以扩大目前有限的动物模型基础，促进对这种策略的进化的理解。