Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jaridenv.2007.01.003 |
Physiological diversity in tolerance to water deprivation among species of South American desert rodents | |
Bozinovic, F.; Cruz-Neto, A. P.; Cortes, A.; Diaz, G. B.; Ojeda, R. A.; Giannoni, S. M. | |
通讯作者 | Bozinovic, F. |
来源期刊 | JOURNAL OF ARID ENVIRONMENTS
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ISSN | 0140-1963 |
EISSN | 1095-922X |
出版年 | 2007 |
卷号 | 70期号:3页码:427-442 |
英文摘要 | Rodents from and and semi-arid deserts are faced with the problem of water conservation. The physiological responses of small rodents to such conditions have been intensively investigated over broad geographically disjunct areas. Despite the presence of xeric habitats in South America since the late Tertiary, some studies suggest that sigmodontine South-American desert rodents do not display the same diversity of physiological responses at the species level as those observed in other desert-dwelling species of rodents. In this paper, we analyzed the physiological responses to water deprivation, at the interespecific and interindividual level, among eight species of sigmodontine desert-dwelling rodents from different geographical areas within South-American deserts. Using randomization tests, we found no significant phylogenetic signal for resistance to water deprivation or for individual variability in this response. Contrary to our initial predictions, we observed that sigmodontine rodents from arid/semi-arid habitats (Monte Desert) had significantly lower rates of body mass loss per day (higher tolerances to water deprivation) than species from the hyperarid deserts. We showed that sigmodontine rodents from South America showed a remarkable diversity of physiological mechanisms for coping with water shortage resulting from different evolutionary adaptive strategies. This diversity, however, displays a rather unexpected pattern in terms of its geographical distribution. (c) 2007 Elsevier Ltd. All rights reserved. |
英文关键词 | body mass balance geographic comparisons physiological tolerances water economy |
类型 | Article |
语种 | 英语 |
国家 | Chile ; Brazil ; Argentina |
收录类别 | SCI-E |
WOS记录号 | WOS:000247288900004 |
WOS关键词 | MONTE DESERT ; SMALL MAMMALS ; ECOLOGICAL IMPLICATIONS ; PHYLOGENETIC SIGNAL ; CLIMATIC ADAPTATION ; SYMPATRIC RODENTS ; METABOLIC-RATE ; ARGENTINA ; ECONOMY ; KIDNEY |
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/2XILL650/154804 |
作者单位 | (1)Pontificia Univ Catolica Chile, Fac Ciencias Biol, Ctr Adv Studies Ecol & Biodivers, Dept Ecol, Santiago 6513677, Chile;(2)UNESP, Inst Biociencias, Dept Zool, BR-13506900 Rio Claro, SP, Brazil;(3)Univ La Serena, Fac Ciencias, Ctr Estudios Avanzados Zonas Aridas, Dept Biol, La Serena, Chile;(4)Inst Argentino Invest Zonas Aridas, RA-5500 Mendoza, Argentina |
推荐引用方式 GB/T 7714 | Bozinovic, F.,Cruz-Neto, A. P.,Cortes, A.,et al. Physiological diversity in tolerance to water deprivation among species of South American desert rodents[J],2007,70(3):427-442. |
APA | Bozinovic, F.,Cruz-Neto, A. P.,Cortes, A.,Diaz, G. B.,Ojeda, R. A.,&Giannoni, S. M..(2007).Physiological diversity in tolerance to water deprivation among species of South American desert rodents.JOURNAL OF ARID ENVIRONMENTS,70(3),427-442. |
MLA | Bozinovic, F.,et al."Physiological diversity in tolerance to water deprivation among species of South American desert rodents".JOURNAL OF ARID ENVIRONMENTS 70.3(2007):427-442. |
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