Global changes explain the long-term demographic trend of the Eurasian common lizard (Squamata: Lacertidae)  

作　　者：Jose L.HORREO Patrick S.FITZE 

机构地区：[1]Department of Genetics,Physiology and Microbiology,Complutense University of Madrid,C/Jose Antonio Novais 12,Madrid 28040,Spain [2]Department of Biodiversity and Evolutionary Biology,National Museum of Natural Sciences(CSIC),C/Jose Gutierrez Abascal 2,Madrid 28006,Spain

出　　处：《Current Zoology》2022年第2期221-228,共8页动物学报（英文版）

基　　金：J.L.H.was supported by a Spanish MINECO grant IJCI-2015-23618;Project funds were provided by the Spanish Ministry of Education and Science[CGL2012-32459,CGL2016-76918 AEI/FEDER,UE to P.S.F.].

摘　　要：The demographic trend of a species depends on the dynamics of its local populations,which can be compromised by local or by global phenomena.However,the relevance of local and global phenomena has rarely been investigated simultaneously.Here,we tested whether local phenomena compromised a species'demographic trend using the Eurasian common lizard Zootoca vivipara,the terrestrial reptile exhibiting the widest geographic distribution,as a model species.We analyzed the species'ancient demographic trend using genetic data from its 6 allopatric genetic clades and tested whether its demographic trend mainly depended on single clades or on global phenomena.Zootoca vivipara's effective population size increased since 2.3 million years ago and started to increase steeply and continuously from 0.531 million years ago.Population growth rate exhibited 2 maxima,both occurring during global climatic changes and important vegetation changes on the northern hemisphere.Effective population size and growth rate were negatively correlated with global surface temperatures,in line with global parameters driving long-term demographic trends.Zootoca vivipara's ancient demography was neither driven by a single clade,nor by the 2 clades that colonized huge geographic areas after the last glaciation.The low importance of local phenomena,suggests that the experimentally demonstrated high sensitivity of this species to short-term ecological changes is a response in order to cope with short-term and local changes.This suggests that what affected its long-term demographic trend the most,were not these local changes/responses,but rather the important and prolonged global climatic changes and important vegetation changes on the northern hemisphere,including the opening up of the forest by humans.

关 键 词：ancient demographic trend anthropological activity Bayesian Skyline Plots early humans Eemian interglacial Eurasian common lizard mid-Brunhes event 

分 类 号：Q958.15[生物学—动物学]