U.S.-Brazil Dissertation Enhancement: The Origin and Evolution of Army Ants

沃德99-04233这一美国-巴西奖支持加州大学的菲利普·S·沃德博士和他的合作者皮埃尔·肖恩·G·布雷迪和巴西圣保罗大学的卡洛斯·罗伯托·F·布兰道博士之间的论文增强合作研究。他们将对军蚁的起源和进化进行为期两年的学位论文增强研究。这项研究的主要目的是检验军蚁综合征在不同大陆上收敛进化的假设；测试多样化的模式是否与大陆碎裂和重新连接的序列相对应；以及分析军蚁觅食行为、迁徙和眼睛形态的进化模式和过程。

Ward 99-04233This US-Brazil award supports dissertation enhancement collaborative research between Dr. Philip S. Ward and his co-PI Sean G. Brady, University of CalIfornia and Dr. Carlos Roberto F. Brandao, University of San Paulo, San Paulo, Brazil. They will conduct a two-year dissertation enhancement study on the origin and evolution of army ants (hymenoptera formicidae). The principal goal of this research is to test the hypothesis that the army ant syndrome evolved convergently on separate continents; to test whether patterns of diversification correspond to sequences of continental fragmentation and reconnection; and to analyze evolutionary patterns and processes of army ant foraging behavior, migration and eye morphology.