干旱区生态环境知识资源中心(Arid): Behavioral response to high temperatures in a desert grassland bird: use of shrubs as thermal refugia

Arid

DOI	10.3398/064.080.0215
	Behavioral response to high temperatures in a desert grassland bird: use of shrubs as thermal refugia
	Ruth, Janet M.; Talbot, William A.; Smith, Eric Krabbe
通讯作者	Ruth, JM
来源期刊	WESTERN NORTH AMERICAN NATURALIST
ISSN	1527-0904
EISSN	1944-8341
出版年	2020
卷号	80 期号:2 页码:265-275
英文摘要	Birds inhabiting hot, arid ecosystems contend with trade-offs between heat dissipation and water conservation. As temperatures increase, passerines engage in various behaviors to reduce exposure to heat, solar radiation and insolation, and reradiation of heat from the ground. These responses to rising temperatures may result in subordination of reproductive urgency or nutrient acquisition to the need for thermoregulation. During studies on Arizona Grasshopper Sparrow (Ammodramus savannarum ammolegus) life history and ecology, we noted that these sparrows abandoned territoriality and foraging behaviors under certain circumstances in favor of cooler microsites. In this paper we document the extreme temperatures to which these and other ground-foraging and ground-nesting birds are exposed in southwestern desert grasslands, and we present evidence that A. s. ammolegus avoids exposure to extreme air and ground temperatures by using shrubs as thermal refugia. Our observations have implications for Arizona Grasshopper Sparrows and other desert grassland passerines in the southwestern United States, where the climate is projected to become hotter and drier. We provide some of the only behavioral data, and associated temperature data, associated with the use of thermal refugia by desert grassland birds. We encourage further studies that use more robust methods to supplement our observational data.
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000558735400015
WOS关键词	EVAPORATIVE COOLING CAPACITY ; HEAT RESTING METABOLISM ; AVIAN THERMOREGULATION ; GRASSHOPPER SPARROWS ; FORAGING BEHAVIOR ; BODY CONDITION ; CLIMATE-CHANGE ; TOLERANCE ; PATTERNS ; HABITAT
WOS类目	Biodiversity Conservation ; Ecology
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
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/2XILL650/325570
作者单位	[Ruth, Janet M.] US Geol Survey, Ft Collins Sci Ctr, New Mexico Landscapes Field Stn, Albuquerque, NM 87131 USA; [Talbot, William A.; Smith, Eric Krabbe] Univ New Mexico, Biol Dept, Albuquerque, NM 87131 USA
推荐引用方式 GB/T 7714	Ruth, Janet M.,Talbot, William A.,Smith, Eric Krabbe. Behavioral response to high temperatures in a desert grassland bird: use of shrubs as thermal refugia[J]. United States Geological Survey,2020,80(2):265-275.
APA	Ruth, Janet M.,Talbot, William A.,&Smith, Eric Krabbe.(2020).Behavioral response to high temperatures in a desert grassland bird: use of shrubs as thermal refugia.WESTERN NORTH AMERICAN NATURALIST,80(2),265-275.
MLA	Ruth, Janet M.,et al."Behavioral response to high temperatures in a desert grassland bird: use of shrubs as thermal refugia".WESTERN NORTH AMERICAN NATURALIST 80.2(2020):265-275.