Conservation priority of global Galliformes species based on phylogenetic diversity  

作　　者：Youhua CHEN 

机构地区：[1]Department of Zoology,University of British Columbia,Vancouver,BC,Canada [2]Department of Renewable Resources,University of Alberta,Edmonton,AB T6G 2H1,Canada

出　　处：《Integrative Zoology》2014年第3期340-348,共9页整合动物学（英文版）

摘　　要：In this study,based on phylogenetic diversity(PD),I develop a conservation strategy for Galliformes species around the world.A cladogram of 197 Galliformes species derived from a previous study was used for calculat­ing PD metrics.Branch length is an important aspect of the phylogenetic information a tree can convey,but 2 traditionally-used metrics,the number of phylogenetic groups to which a taxon belongs(I)and the proportion that each taxon contributes to the total diversity of the group(W),are fully node-based and do not take branch length into account.Therefore,to measure PD more appropriately,I combined a branch-related metric,pen­dant edge(P),in addition to I and W.A final combined rank for Galliformes species was obtained by summing the ranks of the 3 metrics.My results showed that the 5%top priority species for conserving evolutionary po­tential were Galloperdix lunulata,Haematortyx sanguiniceps,Margaroperdix madagarensis,Syrmaticus soem­merringii,Coturnix pectoralis,Polyplectron napoleonis,Alectoris melanocephala,Xenoperdix udzungwensis,Afropavo congensis and Syrmaticus reevesii.The current species priority ranking based on pylogenetic diversi­ty and the official International Union for Conservation of Nature(IUCN)ranking of Galliformes species was significantly correlated when considering the 5 categories of IUCN(critical endangered,endangered,vulnera­ble,near threatened and least concern).This indicated the feasibility of introducing the PD index into the net­work of IUCN regional Red List assessment.The 5%top priority countries selected using the complementarity principle possessing diversified Galliformes genetic resources were China,Indonesia,Mexico,India,Colombia,Australia,Brazil,Angola,Congo and Japan(in descending order).China,Indonesia,Mexico,Brazil,India and Colombia are consistently selected among the 4 top priority sets of richness,rarity,endemicity and PD.This re­sult indicated that the priority result from PD is highly congruent with conventional measures.Along with oth­er conventi

关 键 词：complementarity conservation priority evolutionary history IUCN Red List 

分 类 号：Q95[生物学—动物学]