Dissertation Research: Feeding and Ranging by the White-Handed Gibbon (Hylobates Lar) in Northern Thailand

一夫一妻制在我们的灵长类近亲以及哺乳动物中相对罕见，其决定因素尚未明确确定。通常，一夫一妻制被认为是在某些生态限制的影响下产生的——在某些情况下，雄性可能无法垄断一个以上的雌性，最终，雄性可能无法控制足够的资源基础来支持一个以上的雌性和她依赖的后代。在旧大陆的大型物种中，尤其是长臂猿，人们普遍认为一夫一妻制是它们对小型分散资源的依赖的一种反应，这些资源可能无法支持更大的社会群体。然而，关于长臂猿觅食行为与资源可用性的关系的信息缺乏，部分原因是大部分数据是在赤道雨林中收集的，那里的资源季节性不强，植物多样性高。这项研究将在一个简单的栖息地进行，有明显的干湿季节，在那里食物供应的总体变化将更加明显，在那里监测食物资源的变化可以与长臂猿的范围和社会行为有关。它将允许对目前关于资源分配和社会结构之间相互关系的假设作出明确的评价。这项研究将得到富布赖特奖的部分资助。* * * P人类学\ jfried \ \ 9314804。腹肌 ~z_ | ~!!!!D ~ ~ (Times New Roman Symbol & Arial " h F eG e = Jonathan Friedlaender

ABSTRACT P.I. Robert Sussman/Thad Bartlett SBR - 9314804 Monogamy is relatively rare among our primate relatives, as well as mammals generally, and its determinants have not been clearly established. Typically, monogamy is argued to result when certain ecological constraints impinge - that in certain circumstances, males may be unable to monopolize more than one female, and ultimately, that males may not be able to control a sufficient resource base to support more than a single female and her dependent offspring. In larger Old World species, particularly gibbons, the argument has generally been that monogamy is a response to their dependence on small scattered resources that are presumably unbable to support larger social groups. However, there is a paucity of information on gibbon foraging behavior in relation to resouce availability, partially because most of the data have been collected in equatorial rain forests where there is little seasonality of resources, and plant diversity is high. This study will take place in a simpler habitat, with distinct wet and dry seasons, where gross changes in food availability will be more apparent, and where monitoring the variation in food resources can be related to ranging and social behaviors of the gibbons. It will permit a clear evaluation of current hypotheses concerning the interrelationship between resource distribution and social structure. This study will be supported partially by a Fulbright award. *** P\anthro\jfried\9314804.abs ~ Z _ | ~ ! ! ! ! D ~ ~ ( Times New Roman Symbol & Arial " h F eG e = Jonathan Friedlaender Jonathan Friedlaender