Aguilar César, Wood Perry L, Cusi Juan C, Guzmán Alfredo, Huari Frank, Lundberg Mikael, Mortensen Emma, Ramírez César, Robles Daniel, Suárez Juana, Ticona Andres, Vargas Víctor J, Venegas Pablo J, Sites Jack W
Department of Biology and Bean Life Science Museum, Brigham Young University (BYU), Provo, UT 84602, USA ; Departamento de Herpetología, Museo de Historia Natural de San Marcos (MUSM), Av. Arenales 1256, Jesús María, Lima, Peru ; Instituto de Ciencias Biológicas Antonio Raimondi, Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos, Lima, Peru.
Department of Biology and Bean Life Science Museum, Brigham Young University (BYU), Provo, UT 84602, USA.
Zookeys. 2013 Dec 18(364):47-91. doi: 10.3897/zookeys.364.6109.
Species delimitation studies based on integrative taxonomic approaches have received considerable attention in the last few years, and have provided the strongest hypotheses of species boundaries. We used three lines of evidence (molecular, morphological, and niche envelopes) to test for species boundaries in Peruvian populations of the Liolaemus walkeri complex. Our results show that different lines of evidence and analyses are congruent in different combinations, for unambiguous delimitation of three lineages that were "hidden" within known species, and now deserve species status. Our phylogenetic analysis shows that L. walkeri, L. tacnae and the three new species are strongly separated from other species assigned to the alticolor-bibronii group. Few conventional morphological characters distinguish the new species from closely related taxa and this highlights the need to integrate other sources of data to erect strong hypothesis of species limits. A taxonomic key for known Peruvian species of the subgenus Lioalemus is provided.
在过去几年中，基于综合分类学方法的物种界定研究受到了广泛关注，并提供了关于物种边界的最有力假设。我们使用了三条证据线（分子、形态和生态位包络）来检验秘鲁沃氏利奥蜥复合体种群中的物种边界。我们的结果表明，不同的证据线和分析在不同组合中是一致的，从而明确界定了隐藏在已知物种中的三个谱系，它们现在应被赋予物种地位。我们的系统发育分析表明，沃氏利奥蜥、塔克纳利奥蜥和这三个新物种与归入阿尔蒂科洛-比布罗尼组的其他物种有明显的分化。很少有传统形态特征能将新物种与近缘类群区分开来，这凸显了整合其他数据来源以建立强有力的物种界限假设的必要性。文中提供了秘鲁利奥蜥亚属已知物种的分类检索表。
