What happens to the traditional taxonomy when a well-known tropical saturniid moth fauna is DNA barcoded?
What happens to the traditional taxonomy when a well-known tropical saturniid moth fauna is DNA barcoded?
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DOI：
10.1071/is12038
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发表时间：
2012-01-01
影响因子：
2.2
通讯作者：
Hebert, Paul D. N.
中科院分区：
文献类型：
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作者：
Janzen, Daniel H.;Hallwachs, Winnie;Hebert, Paul D. N.
通过传统描述和编目的物种来衡量热带土星科的生物多样性，存在将神秘物种集中在一个名称下的巨大风险。我们检查了来自哥斯达黎加西北部瓜纳卡斯特保护区 (ACG) 的 32 种“众所周知”的干燥森林天蛾的 DNA 条形码、形态、习性和生态学，发现它们含有多达 49 个可能是不同物种的生物实体。传统物种（Eacles Imperialis、Automeris zugana、Automeris tridens、Othorene verana、Hylesia dalina、Dirphia avia、Syssphinx molina、Syssphinx colla 和 Syssphinxquadrilineata）最显着的分裂是其中一个物种被认为在干燥森林和雨林中繁殖，但被发现是两个生物实体，可通过 DNA 条形码和形态、习性和/或微生态分布。这意味着关于每个传统物种的“标准”生物信息可能是种间信息的无意识混合，并需要更新DNA条形码，更加关注所谓的种内变异，并增加博物馆对来自更多个体和生态特征地点的标本的收藏和管理，以及最终更多的物种描述。同时，将同级物种作为个体实体纳入生物多样性研究，而不是集中在一个传统名称下，降低了观察者感知到的生态和进化概括程度。
Biodiversity of tropical Saturniidae, as measured through traditionally described and catalogued species, strongly risks pooling cryptic species under one name. We examined the DNA barcodes, morphology, habitus and ecology of 32 'well known' species of dry forest saturniid moths from Area de Conservacion Guanacaste (ACG) in north-western Costa Rica and found that they contain as many as 49 biological entities that are probably separate species. The most prominent splitting of traditional species - Eacles imperialis, Automeris zugana, Automeris tridens, Othorene verana, Hylesia dalina, Dirphia avia, Syssphinx molina, Syssphinx colla, and Syssphinx quadrilineata - is where one species was believed to breed in dry forest and rain forest, but is found to be two biological entities variously distinguishable by DNA barcodes and morphology, habitus, and/or microecological distribution. This implies that 'standard' biological information about each traditional species may be an unconscious mix of interspecific information, and begs renewed DNA barcoding, closer attention to so-called intraspecific variation, and increased museum collection and curation of specimens from more individual and ecologically characterised sites - as well as eventually more species descriptions. Simultaneously, this inclusion of sibling species as individual entities in biodiversity studies, rather than pooled under one traditional name, reduces the degree of ecological and evolutionary generalisation perceived by the observer.