Arid
DOI10.1371/journal.pone.0132130
Regional Extinctions and Quaternary Shifts in the Geographic Range of Lestodelphys halli, the Southernmost Living Marsupial: Clues for Its Conservation
Formoso, Anahi E.1; Martin, Gabriel M.2; Teta, Pablo3; Carbajo, Anbal E.4; Sauthier, Daniel E. Udrizar5,6; Pardinas, Ulyses F. J.1
通讯作者Formoso, Anahi E.
来源期刊PLOS ONE
ISSN1932-6203
出版年2015
卷号10期号:7
英文摘要

The Patagonian opossum (Lestodelphys halli), the southernmost living marsupial, inhabits dry and open environments, mainly in the Patagonian steppe (between similar to 32 degrees S and similar to 49 degrees S). Its rich fossil record shows its occurrence further north in Central Argentina during the Quaternary. The paleoenvironmental meaning of the past distribution of L. halli has been mostly addressed in a subjective framework without an explicit connection with the climatic "space" currently occupied by this animal. Here, we assessed the potential distribution of this species and the changes occurred in its geographic range during late Pleistocene-Holocene times and linked the results obtained with conservation issues. To this end, we generated three potential distribution models with fossil records and three with current ones, using MaxEnt software. These models showed a decrease in the suitable habitat conditions for the species, highlighting a range shift from Central-Eastern to South-Western Argentina. Our results support that the presence of L. halli in the Pampean region during the Pleistocene-Holocene can be related to precipitation and temperature variables and that its current presence in Patagonia is more related to temperature and dominant soils. The models obtained suggest that the species has been experiencing a reduction in its geographic range since the middle Holocene, a process that is in accordance with a general increase in moisture and temperature in Central Argentina. Considering the findings of our work and the future scenario of global warming projected for Patagonia, we might expect a harsh impact on the distribution range of this opossum in the near future.


类型Article
语种英语
国家Argentina
收录类别SCI-E
WOS记录号WOS:000358621000007
WOS关键词BUENOS-AIRES PROVINCE ; SMALL MAMMALS DIDELPHIMORPHIA ; LATE-HOLOCENE ; SIGMODONTINE RODENTS ; LATE PLEISTOCENE ; MONTE DESERT ; ARGENTINA ; PATAGONIA ; CLIMATE ; HISTORY
WOS类目Multidisciplinary Sciences
WOS研究方向Science & Technology - Other Topics
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/189816
作者单位1.Consejo Nacl Invest Cient & Tecn, Inst Diversidad & Evoluc Austral, Puerto Madryn, Chubut, Argentina;
2.Univ Nacl Patagonia San Juan Bosco, Fac Ciencias Nat, Lab Invest Evoluc & Biodiversidad, Sede Esquel, Esquel, Chubut, Argentina;
3.Museo Argentino Ciencias Nat Bernardino Rivadavia, Div Mastozool, Buenos Aires, DF, Argentina;
4.Univ Nacl San Martin, Inst Invest & Ingn Ambiental, Ecol Enfermedades Transmitidas Vectores, Buenos Aires, DF, Argentina;
5.Univ Nacl Patagonia San Juan Bosco, Inst Patagon Estudio Ecosistemas Continentales IP, Puerto Madryn, Chubut, Argentina;
6.Univ Nacl Patagonia San Juan Bosco, Fac Ciencias Nat, Puerto Madryn, Chubut, Argentina
推荐引用方式
GB/T 7714
Formoso, Anahi E.,Martin, Gabriel M.,Teta, Pablo,et al. Regional Extinctions and Quaternary Shifts in the Geographic Range of Lestodelphys halli, the Southernmost Living Marsupial: Clues for Its Conservation[J],2015,10(7).
APA Formoso, Anahi E.,Martin, Gabriel M.,Teta, Pablo,Carbajo, Anbal E.,Sauthier, Daniel E. Udrizar,&Pardinas, Ulyses F. J..(2015).Regional Extinctions and Quaternary Shifts in the Geographic Range of Lestodelphys halli, the Southernmost Living Marsupial: Clues for Its Conservation.PLOS ONE,10(7).
MLA Formoso, Anahi E.,et al."Regional Extinctions and Quaternary Shifts in the Geographic Range of Lestodelphys halli, the Southernmost Living Marsupial: Clues for Its Conservation".PLOS ONE 10.7(2015).
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