干旱区生态环境知识资源中心(Arid): Thermal performance curves based on field movements reveal context-dependence of thermal traits in a desert ectotherm

Arid

DOI	10.1007/s10980-020-00986-x
	Thermal performance curves based on field movements reveal context-dependence of thermal traits in a desert ectotherm
	Nowakowski, A. Justin 1,2,3; Peaden, J. Mark 4; Tuberville, Tracey D.5; Buhlmann, Kurt A.5; Todd, Brian D.1
通讯作者	Nowakowski, A. Justin
来源期刊	LANDSCAPE ECOLOGY
ISSN	0921-2973
EISSN	1572-9761
出版年	2020
卷号	35 期号:4 页码:893-906
英文摘要	Context Thermal traits likely mediate organismal responses to changing thermal environments. As temperatures increase, predicting species responses will depend on understanding how thermal traits vary within and among individuals and across time and space. Objectives We evaluated variation in thermal traits within and among individual Mojave Desert Tortoises, using GPS telemetry to quantify movement performance and animal-mounted sensors to measure carapace temperatures. Methods We constructed thermal performance curves (TPCs) based on movement velocity and assessed variation in associated thermal traits by sex, season, and proximity to roads. We also examined the temperature-dependence of monthly home ranges and the frequency of high-displacement movements. Results Individuals exhibited lower variation in upper critical temperatures (CTmaxE) than in other traits, such as optimum temperatures and lower critical temperatures for movement. All thermal traits varied within individuals, either by season or proximity to roads. We also found that monthly home range size and the frequency of high-displacement movements increased with the time individuals spent within their optimal temperature range; however, this effect was only apparent during months with greater rainfall. Conclusions Low standing variation in CTmaxE suggests that this trait may be constrained, limiting potential changes through acclimation or selection in warming environments. Our results demonstrate the modifying effect of rainfall on temperature-space use relationships and highlight the dependence of thermal traits on ecological and landscape contexts. Field-based TPCs derived from GPS movement tracks provided ecologically-relevant estimates of thermal traits and suggest an informative framework for unifying elements of thermal biology and spatial ecology.
英文关键词	Thermal ecology Mojave desert tortoise GPS telemetry Thermal optimum CTmax Body temperature Space use Roads
类型	Article
语种	英语
国家	USA
收录类别	SCI-E
WOS记录号	WOS:000519412600001
WOS关键词	TROPICAL AMPHIBIANS ; SPRINT PERFORMANCE ; CLIMATE-CHANGE ; ECOLOGY ; TEMPERATURE ; PHYSIOLOGY ; NICHE ; FOREST ; DIVERGENCE ; RESISTANCE
WOS类目	Ecology ; Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Environmental Sciences & Ecology ; Physical Geography ; Geology
来源机构	University of California, Davis
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315140
作者单位	1.Univ Calif Davis, Dept Wildlife Fish & Conservat Biol, One Shields Ave, Davis, CA 95616 USA; 2.Smithsonian Inst, Working Land & Seascapes, Conservat Commons, Washington, DC 20013 USA; 3.Conservat Int, Arlington, VA 22202 USA; 4.Rogers State Univ, Dept Biol, 1701 W Will Rogers Blvd, Claremore, OK 74017 USA; 5.Univ Georgia, Savannah River Ecol Lab, Aiken, SC 29802 USA
推荐引用方式 GB/T 7714	Nowakowski, A. Justin,Peaden, J. Mark,Tuberville, Tracey D.,et al. Thermal performance curves based on field movements reveal context-dependence of thermal traits in a desert ectotherm[J]. University of California, Davis,2020,35(4):893-906.
APA	Nowakowski, A. Justin,Peaden, J. Mark,Tuberville, Tracey D.,Buhlmann, Kurt A.,&Todd, Brian D..(2020).Thermal performance curves based on field movements reveal context-dependence of thermal traits in a desert ectotherm.LANDSCAPE ECOLOGY,35(4),893-906.
MLA	Nowakowski, A. Justin,et al."Thermal performance curves based on field movements reveal context-dependence of thermal traits in a desert ectotherm".LANDSCAPE ECOLOGY 35.4(2020):893-906.