干旱区生态环境知识资源中心(Arid): Seasonal variation in the foraging activity of desert argali (Ovis ammon) in Mongolia

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DOI	10.1139/cjz-2018-0239
	Seasonal variation in the foraging activity of desert argali (Ovis ammon) in Mongolia
	Rosenbaum, Barry 1,7; Reading, Richard P.2,3; Tsogtjargal, Garam 4; Amgalanbaatar, Sukh 5; Comte, Sebastien 6
通讯作者	Rosenbaum, Barry
来源期刊	CANADIAN JOURNAL OF ZOOLOGY
ISSN	0008-4301
EISSN	1480-3283
出版年	2019
卷号	97 期号:10 页码:931-939
英文摘要	Debate remains whether energy maximization or time minimization strategies best explain foraging in ungulates. It has also been hypothesized that the capacity of an animal to dissipate body heat regulates animal activity. We investigated these hypotheses while measuring the daily activity of desert argali (Ovis ammon (Linnaeus,1758)) for 12 months and relating the activity pattern to environmental seasonality. We found significant seasonal cycles in argali activity, with the greatest proportion of daytime in winter spent foraging and the greatest proportion of daytime in summer spent bedding. Consistent with an energy maximization strategy, argali reduced all behaviors during the winter in favor of foraging, compensating for the increased energy demands of winter at a time of low forage quality. Consistent with a time minimization strategy, argali in summer significantly reduced foraging and spent more time bedding in shaded areas to avoid hyperthermia due to high ambient temperatures. Both optimal foraging and heat dissipation can be used to explain the observed foraging pattern. Foraging behavior in argali is best described by the extent to which the animals schedule their activities to meet their physiological demands, the way these demands are affected by environmental variables, and the time that is available to accomplish them.
英文关键词	argali Ovis ammon optimal foraging heat dissipation energy maximization activity budget
类型	Article
语种	英语
国家	USA ; Mongolia ; Australia
收录类别	SCI-E
WOS记录号	WOS:000489864900008
WOS关键词	DAILY ACTIVITY PATTERNS ; DIURNAL TIME BUDGET ; IBEX CAPRA-IBEX ; BODY-SIZE ; ENERGY-EXPENDITURE ; BIGHORN SHEEP ; HEAT-STRESS ; REPRODUCTIVE SUCCESS ; SEXUAL SEGREGATION ; DIET OPTIMIZATION
WOS类目	Zoology
WOS研究方向	Zoology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214779
作者单位	1.Denver Zool Fdn, 2300 Steele St, Denver, CO 80205 USA; 2.Butterfly Pavil,6252 West 104th Ave, Westminster, CO 80020 USA; 3.Coalit Int Conservat, Denver, CO 80220 USA; 4.Mongolian Acad Sci, Mammalian Ecol Lab, Inst Gen & Expt Biol, 54b Peace Ave, Ulaanbaatar 210351, Mongolia; 5.Ulaanbaatar State Univ, 13343 Peace Ave,Luvsantseveens St,5th Khoroo, Ulaanbaatar 210351, Mongolia; 6.Univ Tasmania, Sch Nat Sci, Coll Sci & Engn, Private Bag 55, Hobart, Tas 7001, Australia; 7.Altai Inst Res & Conservat, 2076 Oak Ave, Boulder, CO 80304 USA
推荐引用方式 GB/T 7714	Rosenbaum, Barry,Reading, Richard P.,Tsogtjargal, Garam,et al. Seasonal variation in the foraging activity of desert argali (Ovis ammon) in Mongolia[J],2019,97(10):931-939.
APA	Rosenbaum, Barry,Reading, Richard P.,Tsogtjargal, Garam,Amgalanbaatar, Sukh,&Comte, Sebastien.(2019).Seasonal variation in the foraging activity of desert argali (Ovis ammon) in Mongolia.CANADIAN JOURNAL OF ZOOLOGY,97(10),931-939.
MLA	Rosenbaum, Barry,et al."Seasonal variation in the foraging activity of desert argali (Ovis ammon) in Mongolia".CANADIAN JOURNAL OF ZOOLOGY 97.10(2019):931-939.