Darwinian principles of diversification and the current biodiversity crisis  

作　　者：Marvalee H.WAKE 

机构地区：[1]Department of Integrative Biology and Museum of Vertebrate Zoology,University of California,Berkeley,California,USA

出　　处：《Integrative Zoology》2020年第6期624-625,共2页整合动物学（英文版）

摘　　要：Ongoing consideration of the“biodiversity crisis”indicates that reaffirmation of Darwinian principles of selection and diversification,coupled with a longer view of the available and emerging data on biodiversity and the past,present,and future pressures on its maintenance,would benefit research principles,practices,goals and policies.Darwin’s principles of diversification and natural selection,coupled with extinction,articulate a clear appreciation of the way that species form,diversify,further speciate,or become extinct.Contrary to many analyses presented in the late twentieth century(Kohn 2008;Mallet 2008),biologists have begun to see that Darwin’s conception of variation,what he called“incipient species,”and his relative lack of concern about“levels”and taxonomic names is close to the appreciation of species,given genetic and ecological information,now being presented.Fundamental is Darwin’s conception of lineages and their evolution as continua,with“varieties,”“species,”etc.,as sometimes indistinguishable components of lineage diversification.Further,Darwin(1859)clearly stated that natural selection operates on variation,and survival and diversification continue as long as the environment(“country”)does not change at a rate that exceeds the lineage’s capacity for adaptation.

关 键 词：BIODIVERSITY stated EXTINCTION 

分 类 号：Q95[生物学—动物学]