Arid
Comparative physiology of heat production in rodents under increasing salinity : The effects of habits and habitat
Haim, Abraham; Shanas, Uri; Scantlebury, Michael
通讯作者Haim, Abraham
来源期刊BELGIAN JOURNAL OF ZOOLOGY
ISSN0777-6276
出版年2005
卷号135页码:57-61
英文摘要

Small mammals inhabiting environments that are either seasonally or perpetually dry, such as Mediterranean or desert ecosystems respectively, commonly have physiological capabilities that enable them to deal with water shortage. We compared results of thermoregulatory responses of rodent species inhabiting different habitats and having varying activity periods, when salinity increases in their water source, as often Occurs in their natural habitats during the dry period.


Experimental animals were maintained on a diet of dry soy-beans and an increased salinity of their water source (2% agar gel), from 0.9% to 3.5% NaCl in mesic species and up to 7% in xeric species. While desert species Could cope with high salinities in their water source, mesic species could not. Desert-adapted species depending on their preferred micro-habitats differ in their thermoregulatory responses. Rock dwellers, such as the golden spiny mouse Acomys russatus and the bushy tailed gerbil Sekeetamys calurus, reduce their resting metabolic rates (RMR) and increase nonshivering thermogenesis (NST) capacity in response to increasing salinity. In contrast, the deep burrowing fat jird Meriones crassus, increases RMR and only slightly increases NST-capacity.


Our study suggests that species occupying different habitats vary their thermoregulatory capabilities, in relation to dehydration and increasing salinity in the water source. This may be a consequence of adaptation from the original ecosystem to the current environment in which a species inhabits.


英文关键词nonshivering thermogenesis resting metabolic rate aridity thermoregulation kidney function
类型Article
语种英语
国家Israel
收录类别SCI-E
WOS记录号WOS:000203706900010
WOS类目Zoology
WOS研究方向Zoology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/148572
作者单位Univ Haifa, Dept Biol, IL-36006 Oranim, Kiryat Tivon, Israel
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GB/T 7714
Haim, Abraham,Shanas, Uri,Scantlebury, Michael. Comparative physiology of heat production in rodents under increasing salinity : The effects of habits and habitat[J],2005,135:57-61.
APA Haim, Abraham,Shanas, Uri,&Scantlebury, Michael.(2005).Comparative physiology of heat production in rodents under increasing salinity : The effects of habits and habitat.BELGIAN JOURNAL OF ZOOLOGY,135,57-61.
MLA Haim, Abraham,et al."Comparative physiology of heat production in rodents under increasing salinity : The effects of habits and habitat".BELGIAN JOURNAL OF ZOOLOGY 135(2005):57-61.
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