Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s00442-011-2073-2 |
Elevated surface temperature depresses survival of banner-tailed kangaroo rats: will climate change cook a desert icon? | |
Moses, Martin R.1,2; Frey, Jennifer K.1; Roemer, Gary W.1 | |
通讯作者 | Roemer, Gary W. |
来源期刊 | OECOLOGIA
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ISSN | 0029-8549 |
出版年 | 2012 |
卷号 | 168期号:1页码:257-268 |
英文摘要 | Modest increases in global temperature have been implicated in causing population extirpations and range shifts in taxa inhabiting colder environs and in ectotherms whose thermoregulation is more closely tied to environmental conditions. Many arid-adapted endotherms already experience conditions at their physiological limits, so it is conceivable that they could be similarly affected by warming temperatures. We explored how climatic variables might influence the apparent survival of the banner-tailed kangaroo rat (Dipodomys spectabilis), a rodent endemic to the Chihuahuan Desert of North America and renowned for its behavioral and physiological adaptations to arid environments. Relative variable weight, strength of variable relationships, and other criteria indicated that summer, diurnal land surface temperature (SD_LST) was the primary environmental driver of apparent survival in these arid-adapted rodents. Higher temperatures had a negative effect on apparent survival, which ranged from 0.15 (SE = 0.04) for subadults to 0.50 (SE = 0.07) for adults. Elevated SD_LST may negatively influence survival through multiple pathways, including increased water loss and energy expenditure that could lead to chronic stress and/or hyperthermia that could cause direct mortality. Land surface temperatures are predicted to increase by as much 6.5A degrees C by 2099, reducing apparent survival of adults to similar to 0.15 in some regions of the species’ range, possibly causing a shift in their distribution. The relationship between SD_LST and survival suggests a mechanism whereby physiological tolerances are exceeded resulting in a reduction to individual fitness that may ultimately cause a shift in the species’ range over time. |
英文关键词 | Biogeography Capture-recapture Heteromyidae Information theory Physiological limits Range shift |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000299058100024 |
WOS关键词 | MODIS VEGETATION INDEXES ; DIPODOMYS-SPECTABILIS ; LONG-TERM ; AMPHIBIAN DECLINES ; FORAGING BEHAVIOR ; GLOBAL CLIMATE ; DYNAMICS ; RODENT ; POPULATIONS ; VALIDATION |
WOS类目 | Ecology |
WOS研究方向 | Environmental Sciences & Ecology |
来源机构 | New Mexico State University |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/174214 |
作者单位 | 1.New Mexico State Univ, Dept Fish Wildlife & Conservat Ecol, Las Cruces, NM 88003 USA; 2.Rocky Mt Bird Observ, Colorado Div Wildlife & Nat Resources, Conservat Serv Durango Field Off, Durango, CO 81301 USA |
推荐引用方式 GB/T 7714 | Moses, Martin R.,Frey, Jennifer K.,Roemer, Gary W.. Elevated surface temperature depresses survival of banner-tailed kangaroo rats: will climate change cook a desert icon?[J]. New Mexico State University,2012,168(1):257-268. |
APA | Moses, Martin R.,Frey, Jennifer K.,&Roemer, Gary W..(2012).Elevated surface temperature depresses survival of banner-tailed kangaroo rats: will climate change cook a desert icon?.OECOLOGIA,168(1),257-268. |
MLA | Moses, Martin R.,et al."Elevated surface temperature depresses survival of banner-tailed kangaroo rats: will climate change cook a desert icon?".OECOLOGIA 168.1(2012):257-268. |
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