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首页> 外文期刊>Auk >A new species of tapaculo (Rhinocryptidae: Scytalopus) from the Serrania de Perija of Colombia and Venezuela
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A new species of tapaculo (Rhinocryptidae: Scytalopus) from the Serrania de Perija of Colombia and Venezuela

机译：来自哥伦比亚和委内瑞拉的Serrania de Perija的一种新的Tapaculo（Rhinocryptidae：Scytalopus）

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摘要

We describe Scytalopus perijanus (Perija Tapaculo), a new species in the family Rhinocryptidae (suborder Tyranni) found in humid montane and elfin forests (1,600-3,225 m elevation) in the Serrania de Perija of Colombia and Venezuela. Although specimens of this taxon have been available in museums since 1941, they were not carefully studied and were ascribed to different taxa of the latebricola and atratus groups. We obtained a modern series of specimens that, coupled with analysis of vocal and genetic data, clarified this taxonomic puzzle. The new Scytalopus exhibits distinctive morphological and vocal traits with respect to all other known species and represents a differentiated evolutionary lineage within a clade of northern species, including S. meridanus, S. caracae, and S. latebricola. The new species has not been recorded in sympatry with any other Scytalopus, but it may overlap at lower elevations with S. atratus nigricans, although each uses different microhabitats. Ecological niche modeling indicates that the new species currently has a restricted geographic range within the Serrania de Perija, where large extents of natural habitat have been cleared and fragmented, particularly on the Colombian slopes. Scytalopus perijanus, however, is uncommon to fairly common in forest fragments, tall secondary forest patches, elfin forest, and paramo vegetation at the treeline.
机译：我们描述了Scytalopus perijanus（Perija Tapaculo），这是犀牛科（Tyranni亚目）的一个新物种，发现于哥伦比亚和委内瑞拉Serrania de Perija的湿润山地和矮林中（海拔1,600-3,225 m）。尽管此分类单元的标本自1941年以来就已在博物馆中提供，但并未对其进行仔细研究，并且将其归因于Latebricola和Atratus组的不同分类单元。我们获得了一系列现代标本，再加上对语音和遗传数据的分析，澄清了这一分类难题。新的Scytalopus相对于所有其他已知物种均表现出独特的形态和声音特征，并代表北部物种（包括子午链球菌，加拉加斯拉虫和latebricola）中的分化进化谱系。尚未记录到新物种与任何其他Scytalopus交配的情况，但它可能在较低高度与黑曲霉重叠，尽管每种物种都使用不同的微生境。生态位模型表明，新物种目前在Serrania de Perija内的地理范围有限，那里的大部分自然栖息地已被清理和破碎，特别是在哥伦比亚的山坡上。然而，Scytalopus perjanus在森林碎片，高大的次生森林斑块，小精灵森林和林线中的准植被中很少见。

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