干旱区生态环境知识资源中心(Arid): The Field Metabolic Rate, Water Turnover, and Feeding and Drinking Behavior of a Small Avian Desert Granivore During a Summer Heatwave

Arid

DOI	10.3389/fphys.2019.01405
	The Field Metabolic Rate, Water Turnover, and Feeding and Drinking Behavior of a Small Avian Desert Granivore During a Summer Heatwave
	Cooper, Christine Elizabeth 1,2,3; Withers, Philip Carew 1,3; Hurley, Laura Leilani 2; Griffith, Simon Charles 2,4
通讯作者	Cooper, Christine Elizabeth
来源期刊	FRONTIERS IN PHYSIOLOGY
ISSN	1664-042X
出版年	2019
卷号	10
英文摘要	Global environmental change is leading to an increase in the frequency, intensity, and duration of extreme weather events, so effective environmental management requires an understanding not only of the physiological response of organisms to increased mean temperatures, but also to extreme environmental conditions. To determine the physiological consequences of heatwaves on energy and water balance of arid-adapted zebra finches (Taeniopygia guttata), we measured field metabolic rate and water turnover rate of wild, free-living finches during a heatwave (consecutive days of maximum ambient temperature of 40-45 degrees C) and during a cooler period (maximum ambient temperature of 28 degrees C) during a summer drought. To understand how birds accommodated their energy and water requirements, we also monitored feeding and drinking behavior of zebra finches at the study site on hot and cold days over 2.5 months during the same summer. Zebra finches can accommodate heatwaves without major impacts on field energy or water turnover, even when the heatwave is superimposed on high summer temperatures and long-term drought, so long as drinking water is available. In fact, cooler periods may pose a greater energetic challenge than heatwaves during drought, when food availability is limited, due to the increased thermoregulatory cost of maintaining a high body temperature against a thermal gradient. Zebra finches avoided or limited activity during the most thermally challenging periods of the day. Their pre-emptive feeding and drinking in preparation for hours of relative inactivity at high ambient temperature, together with a high body water content and reduced midday activity and metabolic heat production, enabled zebra finches to maintain body mass during a heatwave. Predicting upcoming periods of unfavorably high ambient temperature, together with a high body water content, may be essential for survival by desert birds of extreme ambient temperature during heatwaves.
英文关键词	bird climate change field metabolic rate field water turnover rate heatwave foraging temperature zebra finch
类型	Article
语种	英语
国家	Australia
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000501238000001
WOS关键词	TOTAL-BODY WATER ; CLIMATE-CHANGE ; FORAGING BEHAVIOR ; HIGH-TEMPERATURES ; BIRDS ; ENERGY ; BASAL ; ECONOMY ; RESPONSES ; EVENTS
WOS类目	Physiology
WOS研究方向	Physiology
EI主题词	2019-11-20
来源机构	University of Western Australia
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310951
作者单位	1.Curtin Univ, Sch Mol & Life Sci, Perth, WA, Australia; 2.Macquarie Univ, Dept Biol Sci, Sydney, NSW, Australia; 3.Univ Western Australia, Sch Biol Sci, Perth, WA, Australia; 4.Univ New South Wales Sydney, Sch Biol Earth & Environm Sci, Sydney, NSW, Australia
推荐引用方式 GB/T 7714	Cooper, Christine Elizabeth,Withers, Philip Carew,Hurley, Laura Leilani,et al. The Field Metabolic Rate, Water Turnover, and Feeding and Drinking Behavior of a Small Avian Desert Granivore During a Summer Heatwave[J]. University of Western Australia,2019,10.
APA	Cooper, Christine Elizabeth,Withers, Philip Carew,Hurley, Laura Leilani,&Griffith, Simon Charles.(2019).The Field Metabolic Rate, Water Turnover, and Feeding and Drinking Behavior of a Small Avian Desert Granivore During a Summer Heatwave.FRONTIERS IN PHYSIOLOGY,10.
MLA	Cooper, Christine Elizabeth,et al."The Field Metabolic Rate, Water Turnover, and Feeding and Drinking Behavior of a Small Avian Desert Granivore During a Summer Heatwave".FRONTIERS IN PHYSIOLOGY 10(2019).