干旱区生态环境知识资源中心(Arid): Citizen scientists document long-term streamflow declines in intermittent rivers of the desert southwest, USA

Arid

DOI	10.1086/701483
	Citizen scientists document long-term streamflow declines in intermittent rivers of the desert southwest, USA
	Allen, Daniel C.1; Kopp, Darin A.1; Costigan, Katie H.2; Datry, Thibault 3; Hugueny, Bernard 4; Turner, Dale S.5; Bodner, Gita S.5; Flood, Timothy J.6
通讯作者	Allen, Daniel C.
来源期刊	FRESHWATER SCIENCE
ISSN	2161-9549
EISSN	2161-9565
出版年	2019
卷号	38 期号:2 页码:244-256
英文摘要	Intermittent rivers are spatially dynamic, expanding and contracting in response to changes in water availability, but studies that explicitly examine spatial drying patterns are scarce. We used long-term data produced by citizen scientists to map wet and dry reaches of 3 different river systems to investigate mechanisms producing temporal variation in drying patterns. We quantified the total wetted river length in each survey, and calculated ecologically scaled landscape indices that indicate the carrying capacity (population size) and habitat connectivity of large and small fish metapopulations in these systems. We found that the spatial extent of perennial water decreased over the study period in 2 of the 3 study rivers: similar to 26% in the Agua Fria River from 2008 to 2016, and similar to 14% in Cienega Creek from 2006 to 2016. We also observed an similar to 8% decline in habitat connectivity for large fish in the Agua Fria River. We used multivariate structural equation models to infer causal relationships between spatial drying patterns and temperature, precipitation, streamflow, and drought conditions. These models explained 85% of year-to-year variation in the total length of wet reaches, and 63 and 55% of year-to-year variation in habitat connectivity for large and small fish, respectively. With the US Southwest shifting to an even more arid climate, our results suggest that this may reduce habitat connectivity of fish populations in this region.
英文关键词	citizen science intermittent river drought streamflow river drying fish habitat connectivity climate change
类型	Article
语种	英语
国家	USA ; France
收录类别	SCI-E
WOS记录号	WOS:000474076400003
WOS关键词	SAN PEDRO RIVER ; CLIMATE-CHANGE ; GROUNDWATER ; ECOSYSTEM ; WATER ; ARIZONA ; VEGETATION ; EXPANSION ; DROUGHT ; FISHES
WOS类目	Ecology ; Marine & Freshwater Biology
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
来源机构	French National Research Institute for Sustainable Development
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215742
作者单位	1.Univ Oklahoma, Dept Biol, Ecol & Evolutionary Biol Grad Program, Norman, OK 73019 USA; 2.Univ Louisiana Lafayette, Sch Geosci, Lafayette, LA 70503 USA; 3.IRSTEA, Ctr Lyon Villeurbanne, UR MALY, F-69626 Villeurbanne, France; 4.Univ Toulouse Midi Pyrenees, Lab Evolut & Diversite Biol EDB UMR 5174, CNRS, IRD,UPS, 118 Route Narbonne,Bat 4R1, F-31062 Toulouse 9, France; 5.Nature Conservancy, Tucson, AZ 85719 USA; 6.Friends Agua Fria Natl Monument, Black Canyon City, AZ 85324 USA
推荐引用方式 GB/T 7714	Allen, Daniel C.,Kopp, Darin A.,Costigan, Katie H.,et al. Citizen scientists document long-term streamflow declines in intermittent rivers of the desert southwest, USA[J]. French National Research Institute for Sustainable Development,2019,38(2):244-256.
APA	Allen, Daniel C..,Kopp, Darin A..,Costigan, Katie H..,Datry, Thibault.,Hugueny, Bernard.,...&Flood, Timothy J..(2019).Citizen scientists document long-term streamflow declines in intermittent rivers of the desert southwest, USA.FRESHWATER SCIENCE,38(2),244-256.
MLA	Allen, Daniel C.,et al."Citizen scientists document long-term streamflow declines in intermittent rivers of the desert southwest, USA".FRESHWATER SCIENCE 38.2(2019):244-256.