干旱区生态环境知识资源中心(Arid): Effects of artificial light at night on the foraging behavior of an endangered nocturnal mammal

Arid

DOI	10.1016/j.envpol.2020.114566
	Effects of artificial light at night on the foraging behavior of an endangered nocturnal mammal
	Shier, Debra M.; Bird, Alicia K.; Wang, Thea B.
通讯作者	Shier, DM
来源期刊	ENVIRONMENTAL POLLUTION
ISSN	0269-7491
EISSN	1873-6424
出版年	2020
卷号	263
英文摘要	Modification of nighttime light levels by artificial illumination (artificial light at night; ALAN) is a rapidly increasing form of human disturbance that affects natural environments worldwide. Light in natural environments influences a variety of physiological and ecological processes directly and indirectly and, as a result, the effects of light pollution on species, communities and ecosystems are emerging as significant. Small prey species may be particularly susceptible to ALAN as it makes them more conspicuous and thus more vulnerable to predation by visually oriented predators. Understanding the effects of disturbance like ALAN is especially important for threatened or endangered species as impacts have the potential to impede recovery, but due to low population numbers inherent to at-risk species, disturbance is rarely studied. The endangered Stephens' kangaroo rat (SKR), Dipodomys stephensi, is a nocturnal rodent threatened by habitat destruction from urban expansion. The degree to which ALAN impacts their recovery is unknown. In this study, we examined the effects of ALAN on SKR foraging decisions across a gradient of light intensity for two types of ALAN, flood and bug lights (756 vs 300 lumen, respectfully) during full and new moon conditions. We found that ALAN decreased probability of resource patch depletion compared to controls. Moreover, lunar illumination, distance from the light source and light type interacted to alter SKR foraging. Under the new moon, SKR were consistently more likely to deplete patches under control conditions, but there was an increasing probability of patch depletion with distance from the source of artificial light. The full moon dampened SKR foraging activity and the effect of artificial lights. Our study underscores that ALAN reduces habitat suitability, and raises the possibility that ALAN may impede the recovery of at-risk nocturnal rodents. (c) 2020 Elsevier Ltd. All rights reserved.
英文关键词	ALAN Habitat suitability Foraging Stephens' kangaroo rat Conservation
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000539426400045
WOS关键词	PREDATOR-PREY INTERACTIONS ; RAT DIPODOMYS-STEPHENSI ; KANGAROO RATS ; POPULATION CONSEQUENCES ; MOONLIGHT AVOIDANCE ; ACTIVITY PATTERNS ; DESERT RODENT ; DIM LIGHT ; RISK ; POLLUTION
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	University of California, Davis ; University of California, Los Angeles
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324715
作者单位	[Shier, Debra M.; Bird, Alicia K.; Wang, Thea B.] San Diego Zoo Global, Beckman Ctr Conservat Res, Recovery Ecol, 15600 San Pasqual Valley Rd, Escondido, CA 92027 USA; [Shier, Debra M.] Univ Calif Los Angeles, Dept Ecol & Evolutionary Biol, 621 Charles E Young Dr South, Los Angeles, CA 90095 USA; [Bird, Alicia K.] Univ Calif Davis, Dept Ecol & Evolut, 1 Shields Ave, Davis, CA 95616 USA
推荐引用方式 GB/T 7714	Shier, Debra M.,Bird, Alicia K.,Wang, Thea B.. Effects of artificial light at night on the foraging behavior of an endangered nocturnal mammal[J]. University of California, Davis, University of California, Los Angeles,2020,263.
APA	Shier, Debra M.,Bird, Alicia K.,&Wang, Thea B..(2020).Effects of artificial light at night on the foraging behavior of an endangered nocturnal mammal.ENVIRONMENTAL POLLUTION,263.
MLA	Shier, Debra M.,et al."Effects of artificial light at night on the foraging behavior of an endangered nocturnal mammal".ENVIRONMENTAL POLLUTION 263(2020).