Effect of primate seed dispersal on the spatial genetic structure of a Neotropical tree species

灵长类种子传播对新热带树种空间遗传结构的影响

• 批准号: 265716004
• 负责人: Professorin Dr. Katrin Heer
• 金额: --
• 依托单位: Abteilung Verhaltensökologie und Soziobiologie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2014
• 资助国家: 德国
• 起止时间: 2013-12-31 至 2018-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/265716004?language=en
• 关键词: Effect; primate; seed; dispersal; spatial

The principal objective of the proposed project is to make a contribution to the understanding of the effect of zoochorous seed dispersal on the genetic population structure of the dispersed plant species. Specifically, we address will examine whether(a) there is a spatial genetic structure (SGS) at different age stages of the plant population;(b) the scale of the SGS can be linked to the dispersal distances generated by the dispersal vectors;(c) the SGS of the initial template (seed stage) translates into subsequent stages;(d) the long-term stability of the home ranges of dispersal vectors results in genetic sub-structuring of the plant population;(e) individual plant traits (amount of fruit production) affect visitation rates by the dispersal vectors and whether this transfers into differential seed dispersal.For the study we select a model system that is constituted of two sympatric primate species, the tamarins Saguinus mystax and Saguinus nigrifrons, and the tree species Leonia cymosa. This system is highly appropriate because at the study site in north-eastern Peruvian Amazonia this plant species is a major food resource for the tamarins and the tamarins are the only known seed dispersers of L. cymosa at this site.

该项目的主要目的是为理解动物传播种子对分散植物物种遗传种群结构的影响做出贡献。具体而言，我们将研究（a）植物种群在不同年龄阶段是否存在空间遗传结构（SGS）;（B）SGS的规模是否与传播载体产生的传播距离有关;（c）初始模板的SGS（种子阶段）转化为后续阶段;（d）传播媒介的家域的长期稳定性导致植物种群的遗传亚结构;（e）个别植物特征（水果产量）影响访问率的扩散矢量，以及这是否转移到差分种子扩散。为了研究，我们选择了一个模型系统，两种同域分布的灵长类动物，绢毛猴Saguinus mystax和Saguinus nigrifrons，以及树种莱奥尼亚cymosa。这个系统是非常合适的，因为在研究地点在东北部的秘鲁亚马逊，这种植物物种是一个主要的食物资源的绢毛猴和绢毛猴是唯一已知的种子传播L。cymosa在这个网站上。