干旱区生态环境知识资源中心(Arid): Water Temperature and Availability Shape the Spatial Ecology of a Hot Springs Endemic Toad (Anaxyrus williamsi)

Arid

DOI	10.1655/HERPETOLOGICA-D-20-00047
	Water Temperature and Availability Shape the Spatial Ecology of a Hot Springs Endemic Toad (Anaxyrus williamsi)
	Halstead, Brian J.; Kleeman, Patrick M.; Rose, Jonathan P.; Fouts, Kristen J.
通讯作者	Halstead, BJ (corresponding author), US Geol Survey, Western Ecol Res Ctr, Dixon Field Stn, 800 Business Pk Dr,Suite D, Dixon, CA 95620 USA.
来源期刊	HERPETOLOGICA
ISSN	0018-0831
EISSN	1938-5099
出版年	2021
卷号	77 期号:1 页码:24-36
英文摘要	Desert amphibians are limited to exploiting ephemeral resources and aestivating or to inhabiting scarce refuges of permanent water, such as springs. Understanding how amphibians use these resources is essential for their conservation. Dixie Valley Toads (Anaxyrus williamsi) are precinctive to a small system of cold and hot springs in the Dixie Valley, Nevada, USA. The toads have been petitioned for listing under the US Endangered Species Act, and information about how they use terrestrial and aquatic resources will help managers to conserve the toads and identify threats like geothermal energy development that might affect these toads. We used radiotelemetry to study the seasonal home ranges, movements, and habitat associations of Dixie Valley Toads in autumn 2018 and spring 2019. We found that toads were very closely associated with water in both seasons, with most observations occurring in water, especially for males in spring and all toads in the autumn. Even when found in terrestrial habitat, toads were a median distance of 4.2 m (95% credible interval = 3.3-5.3) from water; 95% of the time in sprin g and autumn, toads were within 14 m of water. Dixie Valley Toad habitat selection indicated a similar pattern, with selection in both spring an autumn for locations closer to water and for warmer water and substrates than at nearby available locations. In autumn, toads also avoided bare ground and terrestrial graminoids. Dixie Valley Toads selected brumation sites in, over (within dense vegetation), or near water, often near springs where water depths and temperatures are likely stable through the winter. The reliance of Dixie Valley Toads on water in spring, autumn, and during brumation suggests that alteration to historical flows and water temperatures are likely to affect the toads. Changes to the hydrothermal environment when toads are brumating could be particularly detrimental, potentially killing inactive toads.
英文关键词	Desert spring Dixie Valley Toads Great Basin Habitat selection Home range Movement Nevada
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000634509000003
WOS关键词	HABITAT USE ; SEXUAL DIFFERENCES ; BUFO-BOREAS ; SELECTION ; MOVEMENTS
WOS类目	Zoology
WOS研究方向	Zoology
来源机构	United States Geological Survey
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350469
作者单位	[Halstead, Brian J.; Fouts, Kristen J.] US Geol Survey, Western Ecol Res Ctr, Dixon Field Stn, 800 Business Pk Dr,Suite D, Dixon, CA 95620 USA; [Kleeman, Patrick M.] US Geol Survey, Western Ecol Res Ctr, Point Reyes Field Stn, Point Reyes Stn, CA 94956 USA; [Rose, Jonathan P.] US Geol Survey, Santa Cruz Field Stn, Western Ecol Res Ctr, Santa Cruz, CA 95060 USA
推荐引用方式 GB/T 7714	Halstead, Brian J.,Kleeman, Patrick M.,Rose, Jonathan P.,et al. Water Temperature and Availability Shape the Spatial Ecology of a Hot Springs Endemic Toad (Anaxyrus williamsi)[J]. United States Geological Survey,2021,77(1):24-36.
APA	Halstead, Brian J.,Kleeman, Patrick M.,Rose, Jonathan P.,&Fouts, Kristen J..(2021).Water Temperature and Availability Shape the Spatial Ecology of a Hot Springs Endemic Toad (Anaxyrus williamsi).HERPETOLOGICA,77(1),24-36.
MLA	Halstead, Brian J.,et al."Water Temperature and Availability Shape the Spatial Ecology of a Hot Springs Endemic Toad (Anaxyrus williamsi)".HERPETOLOGICA 77.1(2021):24-36.