Arid
DOI10.1016/j.gecco.2018.e00456
The effect of dewatering on freshwater mussel (Unionidae) community structure and the implications for conservation and water policy: A case study from a spring-fed stream in the southwestern United States
Randklev, Charles R.1; Tsakris, Eric T.2; Johnson, Matthew S.3; Popejoy, Traci4,5; Hart, Michael A.1; Khan, Jennifer1; Geeslin, Dakus6; Robertson, Clinton R.7
通讯作者Randklev, Charles R.
来源期刊GLOBAL ECOLOGY AND CONSERVATION
ISSN2351-9894
出版年2018
卷号16
英文摘要

The availability of freshwater to meet human and natural ecosystem needs remains the ultimate challenge of ecologically sustainable water management. This issue is particularly true in the southwestern United States, such as Texas, where water resources are already over allocated. The San Saba River, located in central Texas, exemplifies this issue as excessive water withdrawal has resulted in intermittency for as much as two-thirds of its length. The effect of this dewatering on aquatic species such as mussels is not well known, which is problematic because five species of high conservation concern occur in this river. The goal of this study was to examine how dewatering may have affected the distribution of these species and to identify options for mitigating this threat. Comparing species-per-unit-effort (SPUE) and catch-per-unit-effort (CPUE) between these reaches, we found SPUE and CPUE were 3.7 and 7.9 times lower, respectively, in intermittent reaches than in perennial reaches. Using fuzzy ordination, we found that mussel assemblage structure differed between intermittent and perennial reaches despite both historically sharing similar fauna. Evaluating habitat, we found differences in mussel-mesohabitat associations between perennial and intermittent reaches. Current water policy and regulatory tools to mitigate this issue are insufficient, which raises serious questions about how states like Texas, located in arid and semi-arid regions, will be able to protect aquatic ecosystems under the specter of ever increasing population growth and climate change. (C) 2018 The Authors. Published by Elsevier B.V.


英文关键词Human impacts Dewatering Southwestern United States Biodiversity Imperiled species Unionid mussels
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000454994500016
WOS关键词MITCHELLI BIVALVIA UNIONIDAE ; FUZZY-SET ORDINATION ; EXTINCT 1ST ACCOUNT ; EDWARDS PLATEAU ; FALSE SPIKE ; TEXAS ; RIVER ; CLASSIFICATION ; ASSEMBLAGES ; RECAPTURE
WOS类目Biodiversity Conservation ; Ecology
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
来源机构Arizona State University
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/209768
作者单位1.Texas A&M Nat Resources Inst, Texas A&M AgriLife Res Ctr Dallas, Dallas, TX 77843 USA;
2.US Fish & Wildlife Serv, Natl Conservat Training Ctr, Shepherdstown, WV USA;
3.EnviroSci Inc, 1722 Gen George Patton Dr,Suite,B100, Brentwood, TN USA;
4.Univ Oklahoma, Oklahoma Biol Survey, Norman, OK 73019 USA;
5.Univ Oklahoma, Dept Biol, Norman, OK 73019 USA;
6.Texas Parks & Wildlife Dept, Coastal Fisheries, Austin, TX USA;
7.Texas Parks & Wildlife Dept, Rivers Studies Program, Austin, TX USA
推荐引用方式
GB/T 7714
Randklev, Charles R.,Tsakris, Eric T.,Johnson, Matthew S.,et al. The effect of dewatering on freshwater mussel (Unionidae) community structure and the implications for conservation and water policy: A case study from a spring-fed stream in the southwestern United States[J]. Arizona State University,2018,16.
APA Randklev, Charles R..,Tsakris, Eric T..,Johnson, Matthew S..,Popejoy, Traci.,Hart, Michael A..,...&Robertson, Clinton R..(2018).The effect of dewatering on freshwater mussel (Unionidae) community structure and the implications for conservation and water policy: A case study from a spring-fed stream in the southwestern United States.GLOBAL ECOLOGY AND CONSERVATION,16.
MLA Randklev, Charles R.,et al."The effect of dewatering on freshwater mussel (Unionidae) community structure and the implications for conservation and water policy: A case study from a spring-fed stream in the southwestern United States".GLOBAL ECOLOGY AND CONSERVATION 16(2018).
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