干旱区生态环境知识资源中心(Arid): Intensity of giraffe locomotor activity is shaped by solar and lunar zeitgebers

Arid

DOI	10.1016/j.beproc.2020.104178
	Intensity of giraffe locomotor activity is shaped by solar and lunar zeitgebers
	Hart, Emma E.; Fennessy, Julian; Hauenstein, Severin; Ciuti, Simone
通讯作者	Hart, EE
来源期刊	BEHAVIOURAL PROCESSES
ISSN	0376-6357
EISSN	1872-8308
出版年	2020
卷号	178
英文摘要	Natural cycles of light and darkness shift the balance of risks and gains for animals across space and time. Entrainment to photic cycles allows animals to spatiotemporally adapt their behavioural and physiological processes in line with interplaying ecological factors, such as temperature, foraging efficiency and predation risk. Until recently, our understanding of these chronobiological processes was limited by the difficulties of 24 h observations. Technological advances in GPS biotelemetry however are now allowing us unprecedented access to long-term, fine-scale activity data. Here we use data derived from frontline technology to present the first large-scale investigation into the effects of natural fluctuations of light and darkness on the locomotor activity patterns of a threatened African mega-herbivore, the giraffe (Giraffa spp.). Using data from a remote population of Angolan giraffe (G. g. angolensis) in the northern Namib Desert, Namibia, we reveal the first full picture of giraffe chronobiology in a landscape of fear. Furthermore, we present clear evidence of the effect of moonlight on the nocturnal activity patterns of large ungulates. Our results are in line with recent research demonstrating that, rather than a fixed internal representation of time (circadian clock), many surface-dwelling ungulates have plastic activity patterns that are vulnerable to modification by external factors including light and temperature. Relatedly, we highlight important conservation management implications of rising temperatures and increasing light pollution on the chronobiology of surface-dwelling mammals.
英文关键词	Chronobiology GPS biotelemetry locomotor activity lunarphilia circadian rhythms giraffa giraffa angolensis arid environments
类型	Article
语种	英语
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000555776300016
WOS关键词	EQUUS-FERUS-PRZEWALSKII ; ACTIVITY PATTERNS ; PREDATION RISK ; SEASONAL-VARIATION ; NOCTURNAL ACTIVITY ; ULTRADIAN RHYTHMS ; HUNTING SUCCESS ; HERD-SIZE ; UNGULATE ; RESPONSES
WOS类目	Psychology, Biological ; Behavioral Sciences ; Zoology
WOS研究方向	Psychology ; Behavioral Sciences ; Zoology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325404
作者单位	[Hart, Emma E.; Ciuti, Simone] Univ Coll Dublin, Sch Biol & Environm Sci, Lab Wildlife Ecol & Behav, Dublin 4, Ireland; [Hart, Emma E.; Fennessy, Julian] Giraffe Conservat Fdn, Windhoek, Namibia; [Fennessy, Julian] Univ New South Wales, Fac Sci, Sch Biol Earth & Environm Sci, Sydney, NSW, Australia; [Hauenstein, Severin] Univ Freiburg, Dept Biometry & Environm Syst Anal, D-79106 Freiburg, Germany; [Hauenstein, Severin] Univ York, Dept Biol, York YO10 5DD, N Yorkshire, England
推荐引用方式 GB/T 7714	Hart, Emma E.,Fennessy, Julian,Hauenstein, Severin,et al. Intensity of giraffe locomotor activity is shaped by solar and lunar zeitgebers[J],2020,178.
APA	Hart, Emma E.,Fennessy, Julian,Hauenstein, Severin,&Ciuti, Simone.(2020).Intensity of giraffe locomotor activity is shaped by solar and lunar zeitgebers.BEHAVIOURAL PROCESSES,178.
MLA	Hart, Emma E.,et al."Intensity of giraffe locomotor activity is shaped by solar and lunar zeitgebers".BEHAVIOURAL PROCESSES 178(2020).