干旱区生态环境知识资源中心(Arid): Physiological responses of wild zebra finches (Taeniopygia guttata) to heatwaves

Arid

DOI	10.1242/jeb.225524
	Physiological responses of wild zebra finches (Taeniopygia guttata) to heatwaves
	Cooper, Christine Elizabeth; Hurley, Laura Leilani; Deviche, Pierre; Griffith, Simon Charles
通讯作者	Cooper, CE
来源期刊	JOURNAL OF EXPERIMENTAL BIOLOGY
ISSN	0022-0949
EISSN	1477-9145
出版年	2020
卷号	223 期号:12
英文摘要	Desert birds inhabit hot, dry environments that are becoming hotter and drier as a consequence of dimate change. Extreme weather such as heatwaves can cause mass-mortality events that may significantly impact populations and species. There are currently insufficient data concerning physiological plasticity to inform models of species' response to extreme events and develop mitigation strategies. Consequently, we examine here the physiological plasticity of a small desert bird in response to hot (mean maximum ambient temperature=42.7 degrees C) and cooler (mean maximum ambient temperature=31.4 degrees C) periods during a single Austral summer. We measured body mass, metabolic rate, evaporative water loss and body temperature, along with blood parameters (corticosterone, glucose and uric acid) of wild zebra finches (Taeniopygia guttata) to assess their physiological state and determine the mechanisms by which they respond to heatwaves. Hot days were not significant stressors; they did not result in modification of baseline blood parameters or an inability to maintain body mass, provided drinking water was available. During heatwaves, finches shifted their thermoneutral zone to higher temperatures. They reduced metabolic heat production, evaporative water loss and wet thermal conductance, and increased hyperthermia, especially when exposed to high ambient temperature. A consideration of the significant physiological plasticity that we have demonstrated to achieve more favourable heat and water balance is essential for effectively modelling and planning for the impacts of climate change on biodiversity.
英文关键词	Blood parameters Climate change Evaporative water loss Metabolic rate Physiological stress Temperature
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000576692600025
WOS关键词	BASAL METABOLIC-RATE ; RUFOUS-COLLARED SPARROWS ; FORAGING BEHAVIOR ; BODY CONDITION ; CORTICOSTERONE RESPONSES ; PHENOTYPIC FLEXIBILITY ; THERMAL-ACCLIMATION ; HIGH-TEMPERATURES ; CLIMATE-CHANGE ; ACUTE STRESS
WOS类目	Biology
WOS研究方向	Life Sciences & Biomedicine - Other Topics
来源机构	Arizona State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326711
作者单位	[Cooper, Christine Elizabeth] Curtin Univ, Sch Mol & Life Sci, Perth, WA 3102, Australia; [Cooper, Christine Elizabeth; Hurley, Laura Leilani; Griffith, Simon Charles] Macquarie Univ, Dept Biol Sci, Sydney, NSW, Australia; [Deviche, Pierre] Arizona State Univ, Sch Life Sci, Tempe, AZ 85287 USA
推荐引用方式 GB/T 7714	Cooper, Christine Elizabeth,Hurley, Laura Leilani,Deviche, Pierre,et al. Physiological responses of wild zebra finches (Taeniopygia guttata) to heatwaves[J]. Arizona State University,2020,223(12).
APA	Cooper, Christine Elizabeth,Hurley, Laura Leilani,Deviche, Pierre,&Griffith, Simon Charles.(2020).Physiological responses of wild zebra finches (Taeniopygia guttata) to heatwaves.JOURNAL OF EXPERIMENTAL BIOLOGY,223(12).
MLA	Cooper, Christine Elizabeth,et al."Physiological responses of wild zebra finches (Taeniopygia guttata) to heatwaves".JOURNAL OF EXPERIMENTAL BIOLOGY 223.12(2020).