干旱区生态环境知识资源中心(Arid): Combined climatic and anthropogenic stress threaten resilience of important wetland sites in an arid region

Arid

DOI	10.1016/j.scitotenv.2021.150806
	Combined climatic and anthropogenic stress threaten resilience of important wetland sites in an arid region
	Khelifa, Rassim; Mahdjoub, Hayat; Samways, Michael J.
通讯作者	Khelifa, R (corresponding author)，Univ British Columbia, Zool Dept, Vancouver, BC, Canada. ; Khelifa, R (corresponding author)，Univ British Columbia, Biodivers Res Ctr, Vancouver, BC, Canada.
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2022
卷号	806
英文摘要	Climate change and anthropogenic perturbation threaten resilience of wetlands globally, particularly in regions where environmental conditions are already hot and dry, and human impacts are rapidly intensifying and expanding. Here we assess the vulnerability of Ramsar wetlands of six North African countries (Western Sahara, Morocco, Algeria, Tunisia, Libya, and Egypt) by asking three questions: (1) what are the recent anthropogenic changes that the wetlands experienced? (2) what are the projected future climatic changes? (3) how wetlands with different conservation priorities and globally threatened species are impacted by anthropogenic pressures? We used climatic data (historical and future projections) from WorldClim 2, drought index (SPEI), and human footprint index (HFI for 2000 and 2019) to estimate anthropogenic pressures, as well as waterbird conservation value (WCV: a metric indicating conservation priority of sites) and the breeding distribution of three threatened waterbird species (Aythya nyroca, Marmaronetta angustirostris, and Oxyura leucocephala) to understand how biodiversity is impacted by anthropogenic pressure. We found that temperature, precipitation, drought, and human footprint index (HFI) increased during earlier decades. Interestingly, areas with high HFI are projected to encounter lower warming but more severe drought. We also found that WCV was positively correlated with the magnitude of current HFI, indicating that sites of high conservation value for waterbirds encounter higher levels of anthropogenic pressure. The breeding range of the three threatened species of waterbirds showed a marked increase in HFI and is projected to experience a severe increase in temperature by 2081-2100, especially under the high emission scenario (SSP8.5) where environmental temperature becomes closer to the species critical maxi- mum. Our results highlight the importance of integrating new conservation measures that increase the resilience of North African protected wetlands to reduce extinction risk to biodiversity. (c) 2021 Published by Elsevier B.V.
英文关键词	perturbation human in fluence North Africa Ramsar sites Drought Warming Human footprint index Wetlands
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000744155900010
WOS关键词	NORTH-AFRICA ; BODY-SIZE ; MIDDLE-EAST ; LONG-TERM ; WATERBIRDS ; POPULATION ; OCCUPANCY ; IMPACTS ; HABITAT ; ODONATA
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376939
作者单位	[Khelifa, Rassim] Univ British Columbia, Zool Dept, Vancouver, BC, Canada; [Khelifa, Rassim] Univ British Columbia, Biodivers Res Ctr, Vancouver, BC, Canada; [Mahdjoub, Hayat] Univ Zurich, Dept Evolutionary Biol & Environm Sci, Zurich, Switzerland; [Samways, Michael J.] Stellenbosch Univ, Dept Conservat Ecol & Entomol, Stellenbosch, South Africa
推荐引用方式 GB/T 7714	Khelifa, Rassim,Mahdjoub, Hayat,Samways, Michael J.. Combined climatic and anthropogenic stress threaten resilience of important wetland sites in an arid region[J],2022,806.
APA	Khelifa, Rassim,Mahdjoub, Hayat,&Samways, Michael J..(2022).Combined climatic and anthropogenic stress threaten resilience of important wetland sites in an arid region.SCIENCE OF THE TOTAL ENVIRONMENT,806.
MLA	Khelifa, Rassim,et al."Combined climatic and anthropogenic stress threaten resilience of important wetland sites in an arid region".SCIENCE OF THE TOTAL ENVIRONMENT 806(2022).