Arid
DOI10.1016/j.jaridenv.2010.11.011
Body mass and water economy in the South American olivaceous field mouse along a latitudinal gradient: Implications for climate change
Bozinovic, F.1,2; Rojas, J. M.1,2; Gallardo, P. A.3; Palma, R. E.1,2; Gianoli, E.4,5
通讯作者Bozinovic, F.
来源期刊JOURNAL OF ARID ENVIRONMENTS
ISSN0140-1963
出版年2011
卷号75期号:5页码:411-415
英文摘要

We compared geographic trends in body mass in a number of populations of the olivaceous field mouse (Abrothrix olivaceus,) along a latitudinal gradient in Chile, and tested the expected neutral tendency resulting from the opposite influences of environmental temperature and aridity across the gradient. Also, we studied water economy through physiological measurements of total evaporative water loss and urine osmolality in individuals from populations inhabiting two contrasting habitats (northern semiarid shrubland and southern temperate rainforest) and acclimated during six months to the same conditions. No change in male body mass with latitude was found across 39 populations. Evaporative water loss in rodents from the semiarid shrubland was significantly lower than that of individuals from the temperate rainforest, and urine osmolality was significantly higher in rodents from the semiarid habitat. We found a better tolerance of water shortage in the rodent population from the xeric habitat, thus suggesting the occurrence of local adaptation to the prevailing habitat conditions. The mechanisms by which rodents regulate their water economy in face of spatial and temporal fluctuations in environmental conditions constitute an essential component of the physiological flexibility that is necessary to cope with challenging climate change scenarios. (C) 2010 Elsevier Ltd. All rights reserved.


英文关键词Body mass Climate change Desert adaptation Geographic variability Interpopulational comparisons Water economy
类型Article
语种英语
国家Chile
收录类别SCI-E
WOS记录号WOS:000288642300003
WOS关键词DESERT RODENTS ; SMALL MAMMALS ; EVOLUTIONARY SIGNIFICANCE ; PHYSIOLOGICAL ECOLOGY ; URINE OSMOLALITY ; FLEXIBILITY ; COUNTERGRADIENT ; ADAPTATION ; COMMUNITY ; RESPONSES
WOS类目Ecology ; Environmental Sciences
WOS研究方向Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/168869
作者单位1.Pontificia Univ Catolica Chile, Fac Ciencias Biol, Ctr Adv Studies Ecol & Biodivers, Santiago 6513677, Chile;
2.Pontificia Univ Catolica Chile, Fac Ciencias Biol, Dept Ecol, Santiago 6513677, Chile;
3.Univ Andres Bello, Fac Ciencias Biol, Dept Ciencias Biol, Santiago 8370146, Chile;
4.Univ La Serena, Dept Biol, La Serena, Chile;
5.Univ Concepcion, Dept Bot, Concepcion, Chile
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Bozinovic, F.,Rojas, J. M.,Gallardo, P. A.,et al. Body mass and water economy in the South American olivaceous field mouse along a latitudinal gradient: Implications for climate change[J],2011,75(5):411-415.
APA Bozinovic, F.,Rojas, J. M.,Gallardo, P. A.,Palma, R. E.,&Gianoli, E..(2011).Body mass and water economy in the South American olivaceous field mouse along a latitudinal gradient: Implications for climate change.JOURNAL OF ARID ENVIRONMENTS,75(5),411-415.
MLA Bozinovic, F.,et al."Body mass and water economy in the South American olivaceous field mouse along a latitudinal gradient: Implications for climate change".JOURNAL OF ARID ENVIRONMENTS 75.5(2011):411-415.
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