Arid
DOI10.1073/pnas.1308721110
Evolutionary lag times and recent origin of the biota of an ancient desert (Atacama-Sechura)
Guerrero, Pablo C.1; Rosas, Marcelo2; Arroyo, Mary T. K.1; Wiens, John J.3
通讯作者Guerrero, Pablo C.
来源期刊PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
ISSN0027-8424
出版年2013
卷号110期号:28页码:11469-11474
英文摘要

The assembly of regional biotas and organismal responses to anthropogenic climate change both depend on the capacity of organisms to adapt to novel ecological conditions. Here we demonstrate the concept of evolutionary lag time, the time between when a climatic regime or habitat develops in a region and when it is colonized by a given clade. We analyzed the time of colonization of four clades (three plant genera and one lizard genus) into the Atacama-Sechura Desert of South America, one of Earth’s driest and oldest deserts. We reconstructed time-calibrated phylogenies for each clade and analyzed the timing of shifts in climatic distributions and biogeography and compared these estimates to independent geological estimates of the time of origin of these deserts. Chaetanthera and Malesherbia (plants) and Liolaemus (animal) invaded arid regions of the Atacama-Sechura Desert in the last 10 million years, some 20 million years after the initial onset of aridity in the region. There are also major lag times between when these clades colonized the region and when they invaded arid habitats within the region (typically 4-14 million years). Similarly, hyperarid climates developed similar to 8 million years ago, but the most diverse plant clade in these habitats (Nolana) only colonized them similar to 2 million years ago. Similar evolutionary lag times may occur in other organisms and habitats, but these results are important in suggesting that many lineages may require very long time scales to adapt to modern desertification and climatic change.


英文关键词niche conservatism niche evolution biodiversity evolutionary biogeography
类型Article
语种英语
国家Chile ; USA
收录类别SCI-E
WOS记录号WOS:000321827000064
WOS关键词CENOZOIC CLIMATE-CHANGE ; MOLECULAR PHYLOGENY ; NICHE CONSERVATISM ; NOLANA SOLANACEAE ; MIOCENE AGE ; PATTERNS ; ECOLOGY ; ARIDITY ; UPLIFT ; VARIABILITY
WOS类目Multidisciplinary Sciences
WOS研究方向Science & Technology - Other Topics
来源机构University of Arizona
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/179500
作者单位1.Univ Chile, Fac Sci, Inst Ecol & Biodivers, Santiago 7800024, Chile;
2.Inst Invest Agropecuarias, Banco Nacl Semillas, Vicuna 1760000, Chile;
3.Univ Arizona, Dept Ecol & Evolutionary Biol, Tucson, AZ 85721 USA
推荐引用方式
GB/T 7714
Guerrero, Pablo C.,Rosas, Marcelo,Arroyo, Mary T. K.,et al. Evolutionary lag times and recent origin of the biota of an ancient desert (Atacama-Sechura)[J]. University of Arizona,2013,110(28):11469-11474.
APA Guerrero, Pablo C.,Rosas, Marcelo,Arroyo, Mary T. K.,&Wiens, John J..(2013).Evolutionary lag times and recent origin of the biota of an ancient desert (Atacama-Sechura).PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,110(28),11469-11474.
MLA Guerrero, Pablo C.,et al."Evolutionary lag times and recent origin of the biota of an ancient desert (Atacama-Sechura)".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 110.28(2013):11469-11474.
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