Dissertation Enhancement: Effect of the Landscape Matrix on the Composition and Conservation of Forest Bird Communities

这份美洲项目的论文强化奖将支持Luis M. Renjifo先生和他的导师Bette A. Loiselle博士前往哥伦比亚，研究森林破碎化和周围景观基质的组成对森林鸟类种群的影响。主要目标是解决以下主要假设：1)嵌入森林的景观基质影响小型林区的鸟类物种组成，其他方面相似；2)鸟类亚群对不同周围景观基质的数值响应存在差异。将采用一种实验方法来测试这些假设，利用不同土地利用所创造的当前景观条件。采样单位为人为基质内的森林片段和连续森林内的样地。第三个目标是研究破碎化后研究区鸟类组合的历史变化。这将通过比较该区域森林目前的物种组成与破碎化之前的物种组成，以及与非破碎化研究区域的物种组成来完成。＊＊＊

9521077 Loiselle This Dissertation Enhancement award from the Americas Program, will support travel to Colombia by Mr. Luis M. Renjifo and his advisor, Dr. Bette A. Loiselle, to study the impact of forest fragmentation and the composition of the surrounding landscape matrix on populations of forest bird species. The primary objectives are to address the following major hypotheses: 1) the landscape matrix in which forests are embedded affect bird species composition of small, otherwise similar, forest areas; and 2) bird subgroups differ in their numerical responses to distinct surrounding landscape matrices. An experimental approach will be followed to test these hypotheses, taking advantage of current landscape conditions created by different land uses. Sampling units will be forest fragments within anthropogenic matrices and plots within continuous forests. A third objective will be to examine the historical change of bird assemblages in the study area following fragmentation. This will be done by comparing current species composition of the region's forest to species composition in the region prior to fragmentation, and with the non-fragmented area of study. ***