An Integrated Approach to Delimit Species in the Puzzling Atractus emmeli Complex (Serpentes: Dipsadidae)

IF 1.1 2区生物学 Q3 ZOOLOGY

Herpetological Monographs Pub Date : 2019-10-09 DOI:10.1655/0733-1347-33.1.1

Paulo Passos, J. Azevedo, C. Nogueira, R. Fernandes, R. J. Sawaya

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引用次数: 4

Abstract

Abstract: We evaluated the taxonomic status of snakes from the Atractus emmeli species complex (composed by A. boettgeri, A. emmeli, A. paravertebralis, and A. taeniatus) on the basis of concordance between quantitative (meristics and morphometrics) and qualitative (pholidosis, color pattern, and hemipenis) analyses of morphological characters, in combination with ecological niche modeling and niche overlapping. We synonymize A. boettgeri, A. paravertebralis, and A. taeniatus with A. emmeli based on the congruent analytical results. We also describe a new species to accommodate the Brazilian populations from the state of Mato Grosso mainly based upon some unique states of morphological characters, including hemipenial morphology, color pattern, and meristics. We found that the new species has a distinct ecological niche compared with A. emmeli and some level of niche overlapping with A. albuquerquei. We found great differences in ecological niches of species occurring in the Cerrado versus those occurring in the Western Amazon–Andean foothills, suggesting a putative niche evolution in this group.

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一种综合性的方法来界定令人困惑的艾梅里巨怪复合体中的物种（蛇科：双科）

摘要：我们根据形态特征的定量（分生组织学和形态计量学）和定性（光镜、颜色模式和半阴茎）分析之间的一致性，评估了由A.boettgeri、A.emmeli、A.paraspinalis和A.taeniatus组成的Atractus emmeli物种复合体中蛇的分类地位，结合生态位建模和生态位重叠。根据一致的分析结果，我们将A.boettgeri、A.parasebitalis和A.taeniatus与A.emmeli同义。我们还描述了一个新物种，以适应马托格罗索州的巴西种群，主要基于一些独特的形态特征，包括半阴茎形态、颜色模式和分生组织。我们发现，该新物种与埃梅里a.emmeli相比具有明显的生态位，并且与阿尔伯克基a.albuquerquei有一定程度的生态位重叠。我们发现，塞拉多与西亚马逊-安第斯山麓的物种生态位存在巨大差异，这表明该群体存在假定的生态位进化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Herpetological Monographs 生物-动物学

CiteScore

5.40

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Since 1982, Herpetological Monographs has been dedicated to original research about the biology, diversity, systematics and evolution of amphibians and reptiles. Herpetological Monographs is published annually as a supplement to Herpetologica and contains long research papers, manuscripts and special symposia that synthesize the latest scientific discoveries.