Endemism, speciation and adaptive radiation in great lakes.

摘要: Evolution in great lakes has often been both quantitative (many endemic species of distantly related taxa being present) and qualitative (outstanding levels adaptive radiation having sometimes achieved). These situations pose many questions, such as why there are so endemics superspecialists (and at the same time sibling species), well presenting problems relating to matters convergent evolution different lakes, possible role key innovations, nature isolating mechanisms, competition co-existence complex communities, roles diverse mutualistic associations, others. rich faunas also provide particularly favourable opportunities for studying patterns speciation, while attempts elucidate phylogenies groups African cichlid fishes, that have radiated several can be pursued on a broad scale intralacustrine level using recently developed techniques time-honoured methods. Rates evolution, which differ widely between ecologically equivalent extremely rapid, attested by molecular data evidence from field studies. Notwithstanding their evolutionary exuberance, these fragile demonstrated dramatically appalling tragedy befallen haplochromine flock Lake Victoria.