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DOI: 10.1371/journal.pone.0150327
Title:
Turning Up the Heat on a Hotspot: DNA Barcodes Reveal 80% More Species of Geometrid Moths along an Andean Elevational Gradient
Author: Gunnar Brehm; Paul D. N. Hebert; Robert K. Colwell; Marc-Oliver Adams; Florian Bodner; Katrin Friedemann; Lars Möckel; Konrad Fiedler
Source Publication: PLOS ONE
ISSN: 1932-6203
Indexed By: SCI-E
Publishing Year: 2016
Date Published: 2016-3-9
Volume: 11, Issue:3
Language: 英语
Keyword: Species diversity ; Cryptic speciation ; Moths and butterflies ; DNA barcoding ; Phylogeography ; Species delimitation ; Shannon index ; Taxonomy
Subject in Chinese: 边界 ; 高温
Subject: BOUNDARIES ; HEAT
English Abstract: We sampled 14,603 geometrid moths along a forested elevational gradient from 1020–3021 m in the southern Ecuadorian Andes, and then employed DNA barcoding to refine decisions on species boundaries initially made by morphology. We compared the results with those from an earlier study on the same but slightly shorter gradient that relied solely on morphological criteria to discriminate species. The present analysis revealed 1857 putative species, an 80% increase in species richness from the earlier study that detected only 1010 species. Measures of species richness and diversity that are less dependent on sample size were more than twice as high as in the earlier study, even when analysis was restricted to an identical elevational range. The estimated total number of geometrid species (new dataset) in the sampled area is 2350. Species richness at single sites was 32–43% higher, and the beta diversity component rose by 43–51%. These impacts of DNA barcoding on measures of richness reflect its capacity to reveal cryptic species that were overlooked in the first study. The overall results confirmed unique diversity patterns reported in the first investigation. Species diversity was uniformly high along the gradient, declining only slightly above 2800 m. Species turnover also showed little variation along the gradient, reinforcing the lack of evidence for discrete faunal zones. By confirming these major biodiversity patterns, the present study establishes that incomplete species delineation does not necessarily conceal trends of biodiversity along ecological gradients, but it impedes determination of the true magnitude of diversity and species turnover.
Related Link: http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0150327&type=printable
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被引频次[WOS]:22   [查看WOS记录]     [查看WOS中相关记录]
Document Type: 期刊论文
Identifier: http://119.78.100.177/globalchange/handle/2HF3EXSE/24097
Appears in Collections:过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响

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Affiliation: Institut für Spezielle Zoologie und Evolutionsbiologie mit Phyletischem Museum, Friedrich-Schiller-Universität Jena, Jena, Germany;Centre for Biodiversity Genomics, Biodiversity Institute of Ontario, University of Guelph, Guelph, Ontario, Canada;Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT, United States of America;Departmento de Ecologia, Universidade Federal de Goiás, Goiânia, GO, Brasil;University of Colorado Museum of Natural History, Boulder, CO, 80309, United States of America;Department of Botany and Biodiversity Research, University of Vienna, Vienna, Austria;Department of Botany and Biodiversity Research, University of Vienna, Vienna, Austria;Hessisches Landesmuseum Darmstadt, Abteilung Naturgeschichte–Zoologie, Darmstadt, Germany;Institut für Spezielle Zoologie und Evolutionsbiologie mit Phyletischem Museum, Friedrich-Schiller-Universität Jena, Jena, Germany;Department of Botany and Biodiversity Research, University of Vienna, Vienna, Austria

Recommended Citation:
Gunnar Brehm,Paul D. N. Hebert,Robert K. Colwell,et al. Turning Up the Heat on a Hotspot: DNA Barcodes Reveal 80% More Species of Geometrid Moths along an Andean Elevational Gradient[J]. PLOS ONE,2016-01-01,11(3)
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