U.S.-Brazil Dissertation Enhancement: Effect of Habitat Fragmentation on the Reproduction and Population Dynamics of a Neotropical Herb (Heliconia Acuminata)

小行星9806351 这个美国-巴西奖将支持一个论文增强项目，涉及埃米利奥M。加州大学戴维斯分校的布鲁娜在苏珊·哈里森和莎伦·Y·卡耐基博士的指导下，施特劳斯 该项目的题目是“生境破碎化对新热带区草本植物（Heliconia acuminata）繁殖和种群动态的影响”。“实地工作将在由史密森学会和亚马逊国家研究所管理的森林碎片生物动力学项目（BDFFP）中进行。 BDFFP是一个大规模的实验性项目，专门用于研究热带地区碎片化的影响。 Bruna先生将检验一个假设，即观察到的新热带区草本植物Heliconia acuminata栖息地碎片密度降低的模式是栖息地碎片人口增长率较低的结果，这是由于授粉、种子生产和幼苗建立水平降低。他将通过一系列的操纵实验来确定H. 通过监测连续森林和生境片段中的长期人口统计图，并将这些数据纳入矩阵模型以预测种群动态，acuminata的种群数量各不相同。 ***

9806351 Harrison This U.S.-Brazil award will support a dissertation enhancement project involving Mr. Emilio M. Bruna of the University of California, Davis, under the supervision of Drs. Susan Harrison and Sharon Y. Strauss. The title of this project is "Effect of Habitat Fragmentation on the Reproduction and Population Dynamics of a Neotropical Herb (Heliconia acuminata)." Fieldwork will be done at the Biological Dynamics of Forest Fragments Project (BDFFP), administered by the Smithsonian Institution and the National Institute of Amazonian Research (INPA). The BDFFP is a large scale, experimental project designed specifically to study the effects of fragmentation in the tropics. Mr. Bruna will test the hypothesis that an observed pattern of reduced density in habitat fragments of the neotropical herb Heliconia acuminata is the result of lower population growth rate in habitat fragments, due to reduced levels of pollination, seed production, and seedling establishment. He will test this by determining, via a series of manipulative experiments, how and why reproductive success in H. acuminata varies, by monitoring long-term demographic plots in continuous forest and habitat fragments and, by incorporating these data into a matrix model to predict population dynamics. ***