Primate Mating Systems in Relation to Environmental Resources and Reproductive Success

这笔赠款允许迪茨博士继续他的研究黄金 狮绒猴（Leontopithecus罗萨利亚）。 这只绒猴 一个濒危物种，仅限于孤立的片段， 巴西东南沿海沿着的一片狭长森林。 Poco das Antas保护区内有许多这种绒猴 部队 迪茨和他的团队将监测成分， 生产和规模、质量和领土重叠， 在20到30组之间。 生物学家对绒猴和绢毛猴特别感兴趣 因为他们有几种不同的社会群体。 有些部队是一夫一妻制的，有些则以男性为中心 伴随着几个女性;其他人是围绕一个组织 有几只雄性伴随的焦点雌性。 迪茨医生 检查这种变化，以确定其原因。 他 威尔还试图确定 每一种类型的群体中的个体。 他预测， 环境质量的差异导致不同类型的 一夫一妻制是对穷人的回应， 资源质量。 这项研究将验证这一想法。 这项研究很重要，原因有两个。 第一，金色 狮子绒猴是濒临灭绝的物种，努力正在进行中 在几个动物园里饲养它们。 收集的数据 迪茨博士将帮助实现这一目标。 第二，不同种类的 灵长类动物表现出不同的社会组织， 造成这些差异的原因尚不清楚。 因为这些 动物有如此广泛的社会行为， 物种，他们提供了一个特别宝贵的机会， 理解这个问题。

This grant permits Dr. Dietz to continue his study of the golden lion marmoset (Leontopithecus rosalia). This marmoset, which is an endangered species, is confined to isolated fragments of forest in a narrow strip along the southeast coast of Brazil. The Poco das Antas Reserve contains a number of these marmoset troops. Dietz and his team will monitor the composition, reproduction and size, quality and overlap of territories for between 20 and 30 groups. Marmosets and tamarins are of particular interest to biologists because they have several distinct kinds of social groupings. Some troops are monogamous; other are centered about a male accompanied by several females; others are organized around a focal female accompanied by several males. Dr. Dietz is examining this variability in order to determine its cause. He will also attempts to determine the relative reproductive fitness for individuals in each type of group. His prediction is that differences in environmental quality lead to different kinds of group composition, and that monogamy is a response to poor resource quality. This research will test that idea. This research is important for two reasons. First, the golden lion marmoset is an endangered species, and efforts are underway to breed them in several zoological parks. The data collected by Dr. Dietz will aid in this goal. Second, different species of primates exhibit different kinds of social organization and the reasons for these differences are not clear. Because these animals have such a wide range of social behavior within a single species, they offer a particularly valuable opportunity to understand this issue.