干旱区生态环境知识资源中心(Arid): Environmental DNA as a management tool for tracking artificial waterhole use in savanna ecosystems

Arid

DOI	10.1016/j.biocon.2022.109712
	Environmental DNA as a management tool for tracking artificial waterhole use in savanna ecosystems
	Farrell, Maxwell J.; Govender, Danny; Hajibabaei, Mehrdad; van der Bank, Michelle; Davies, T. Jonathan
通讯作者	Farrell, MJ
来源期刊	BIOLOGICAL CONSERVATION
ISSN	0006-3207
EISSN	1873-2917
出版年	2022
卷号	274
英文摘要	Game parks are the last preserve of many large mammals, and in savanna ecosystems, management of surface waters poses a conservation challenge. In arid and semi-arid regions, water can be a scarce resource during dry seasons and drought. Artificial waterholes are common in parks and reserves across Africa, but can alter mammal community composition by favoring drought intolerant species, with consequences for disease dynamics, and population viability of drought-tolerant species. Analysis of waterborne environmental DNA (eDNA) is increasingly used to inform conservation of rare and invasive species, and conduct large-scale biodiversity assessments. To explore the reliability of eDNA as an indicator of mammal waterhole use in savannas, we compare eDNA metabarcoding and camera traps for documenting artificial waterhole use in the Kruger National Park, South Africa, a global hotspot for mammal diversity. We show that eDNA metabarcoding can recover the majority of mammal species detected by camera traps, including a number of endangered species, but DNA signatures of mammal visitation are temporally limited, with best performance when tracking water-dependent large bodied mammals visiting within two days of sampling. Our results highlight limitation of eDNA based monitoring in these systems, including the lack of long-term eDNA persistence in small and highly utilized waterholes, and variability in detection rates among species. However, we demonstrate that eDNA-based approaches can be used to track mammals of conservation concern, and reflect patterns of recent waterhole use and co-occurrence across water-dependent species, both of which are crucial for making evidence-based decisions regarding water management and provisioning.
英文关键词	eDNA metabarcoding Biodiversity survey Camera trap Megafauna Water management
类型	Article
语种	英语
开放获取类型	Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000863345100004
WOS关键词	KRUGER-NATIONAL-PARK ; DROUGHTS ; SPREAD ; SAMPLE
WOS类目	Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/391976
推荐引用方式 GB/T 7714	Farrell, Maxwell J.,Govender, Danny,Hajibabaei, Mehrdad,et al. Environmental DNA as a management tool for tracking artificial waterhole use in savanna ecosystems[J],2022,274.
APA	Farrell, Maxwell J.,Govender, Danny,Hajibabaei, Mehrdad,van der Bank, Michelle,&Davies, T. Jonathan.(2022).Environmental DNA as a management tool for tracking artificial waterhole use in savanna ecosystems.BIOLOGICAL CONSERVATION,274.
MLA	Farrell, Maxwell J.,et al."Environmental DNA as a management tool for tracking artificial waterhole use in savanna ecosystems".BIOLOGICAL CONSERVATION 274(2022).