干旱区生态环境知识资源中心(Arid): Triple Oxygen Isotope Measurements (delta'O-17) of Body Water Reflect Water Intake, Metabolism, and delta O-18 of Ingested Water in Passerines

Arid

DOI	10.3389/fphys.2021.710026
	Triple Oxygen Isotope Measurements (delta'O-17) of Body Water Reflect Water Intake, Metabolism, and delta O-18 of Ingested Water in Passerines
	Sabat, Pablo; Newsome, Seth D.; Pinochet, Stephanie; Nespolo, Roberto; Carlos Sanchez-Hernandez, Juan; Maldonado, Karin; Gerson, Alexander R.; Sharp, Zachary D.; Whiteman, John P.
通讯作者	Sabat, P (corresponding author), Univ Chile, Fac Ciencias, Dept Ciencias Ecol, Santiago, Chile. ; Sabat, P (corresponding author), Ctr Appl Ecol & Sustainabil CAPES, Santiago, Chile.
来源期刊	FRONTIERS IN PHYSIOLOGY
ISSN	1664-042X
出版年	2021
卷号	12
英文摘要	Understanding physiological traits and ecological conditions that influence a species reliance on metabolic water is critical to creating accurate physiological models that can assess their ability to adapt to environmental perturbations (e.g., drought) that impact water availability. However, relatively few studies have examined variation in the sources of water animals use to maintain water balance, and even fewer have focused on the role of metabolic water. A key reason is methodological limitations. Here, we applied a new method that measures the triple oxygen isotopic composition of a single blood sample to estimate the contribution of metabolic water to the body water pool of three passerine species. This approach relies on delta'O-17, defined as the residual from the tight linear correlation that naturally exists between delta O-17 and delta O-18 values. Importantly, delta'17O is relatively insensitive to key fractionation processes, such as Rayleigh distillation in the water cycle that have hindered previous isotope-based assessments of animal water balance. We evaluated the effects of changes in metabolic rate and water intake on delta'O-17 values of captive rufous-collared sparrows (Zonotrichia capensis) and two invertivorous passerine species in the genus Cinclodes from the field. As predicted, colder acclimation temperatures induced increases in metabolic rate, decreases in water intake, and increases in the contribution of metabolic water to the body water pool of Z. capensis, causing a consistent change in delta'O-17. Measurement of & UDelta;'O-17 also provides an estimate of the delta O-18 composition of ingested pre-formed (drinking/food) water. Estimated delta O-18 values of drinking/food water for captive Z. capensis were ~ -11(sic), which is consistent with that of tap water in Santiago, Chile. In contrast, delta O-18 values of drinking/food water ingested by wild-caught Cinclodes were similar to that of seawater, which is consistent with their reliance on marine resources. Our results confirm the utility of this method for quantifying the relative contribution of metabolic versus pre-formed drinking/food water to the body water pool in birds.
英文关键词	birds ?'O-17 evaporative water metabolic rate metabolic water stable isotopes
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000697890400001
WOS关键词	DOUBLY-LABELED WATER ; CLIMATE-CHANGE ; AVIAN THERMOREGULATION ; DESERT ; SPARROWS ; ECONOMY ; BIRDS ; LARKS ; FRACTIONATION ; CONSUMPTION
WOS类目	Physiology
WOS研究方向	Physiology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363336
作者单位	[Sabat, Pablo; Pinochet, Stephanie] Univ Chile, Fac Ciencias, Dept Ciencias Ecol, Santiago, Chile; [Sabat, Pablo; Nespolo, Roberto] Ctr Appl Ecol & Sustainabil CAPES, Santiago, Chile; [Newsome, Seth D.] Univ New Mexico, Dept Biol, Albuquerque, NM 87131 USA; [Nespolo, Roberto] Univ Austral Chile, Inst Ciencias Ambientales & Evolut, Valdivia, Chile; [Nespolo, Roberto] Millennium Inst Integrat Biol iBio, Santiago, Chile; [Carlos Sanchez-Hernandez, Juan] Univ Castilla La Mancha, Lab Ecotoxicol, Toledo, Spain; [Maldonado, Karin] Univ Adolfo Ibanez, Fac Artes Liberales, Dept Ciencias, Santiago, Chile; [Gerson, Alexander R.] Univ Massachusetts, Biol Dept, Amherst, MA 01003 USA; [Sharp, Zachary D.] Univ New Mexico, Dept Earth & Planetary Sci, Albuquerque, NM 87131 USA; [Whiteman, John P.] Old Dominion Univ, Dept Biol Sci, Norfolk, VA 23529 USA
推荐引用方式 GB/T 7714	Sabat, Pablo,Newsome, Seth D.,Pinochet, Stephanie,et al. Triple Oxygen Isotope Measurements (delta'O-17) of Body Water Reflect Water Intake, Metabolism, and delta O-18 of Ingested Water in Passerines[J],2021,12.
APA	Sabat, Pablo.,Newsome, Seth D..,Pinochet, Stephanie.,Nespolo, Roberto.,Carlos Sanchez-Hernandez, Juan.,...&Whiteman, John P..(2021).Triple Oxygen Isotope Measurements (delta'O-17) of Body Water Reflect Water Intake, Metabolism, and delta O-18 of Ingested Water in Passerines.FRONTIERS IN PHYSIOLOGY,12.
MLA	Sabat, Pablo,et al."Triple Oxygen Isotope Measurements (delta'O-17) of Body Water Reflect Water Intake, Metabolism, and delta O-18 of Ingested Water in Passerines".FRONTIERS IN PHYSIOLOGY 12(2021).