Dissertation Research: Adaptive Radiation in an Alpine Great Lake: Phylogenetic and Biogeographic Study of the Andean Killifish Genus Orestias

9311727 Kornfield本研究对南美的的喀喀湖特有的鳉鱼进行了详细的系统发育和生物地理学研究。实验方法将需要在湖中进行广泛的收集，然后对物种内部和物种之间的线粒体DNA序列变化进行详细的遗传分析。这些遗传数据将用于构建这些特有鱼类的系统发育，并研究该南美湖泊中与这种不寻常的多样化相关的种群和历史过程。这项调查将详细评估导致的的喀喀湖特有（独特）鳉鱼多样性的各种过程（包括生物和非生物）。对孤立的鳉鱼种群的遗传独特性的调查将有助于制定保护政策，以优化保护这种稀有和不寻常的鱼类动物群的生物多样性。这一点很重要，因为整个安第斯高原生态系统正受到日益增加的人类活动的威胁。＊＊＊

9311727 Kornfield This research involves a detailed phylogenetic and biogeographic study of endemic killifishes of Lake Titicaca in South America. The experimental approach will entail extensive collecting in the lake followed by a detailed genetic analysis of mitochondrial DNA sequence variation within and among species. These genetic data will be used to both construct a phylogeny for the these endemic fishes and examine population and historical processes related to this unusual diversification in this South American lake. %%% This investigation will provide a detailed assessment of the various processes (both biotic and abiotic) responsible for the diversity of endemic (unique) killifishes seen in Lake Titicaca. Investigations of the genetic uniqueness of isolated populations of killifish will facilitate the formulation of conservation policies optimized for preservation of the biotic diversity of this rare and unusual fish fauna. This is important as the entire Andean Altiplano ecosystem is becoming threatened by increased human activities. ***