Comparing flow regime, channel hydraulics, and biological communities to infer flow–ecology relationships in the Mara River of Kenya and Tanzania
Comparing flow regime, channel hydraulics, and biological communities to infer flow–ecology relationships in the Mara River of Kenya and Tanzania
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DOI：
10.1080/02626667.2013.853121
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发表时间：
2014-04
影响因子：
3.5
通讯作者：
M. McClain;A. Subalusky;E. Anderson;Shimelis B. Dessu;A. Melesse;P. Ndomba;J.O.D. Mtamba;R. Tamatamah;C. Mligo
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文献类型：
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作者：
M. McClain;A. Subalusky;E. Anderson;Shimelis B. Dessu;A. Melesse;P. Ndomba;J.O.D. Mtamba;R. Tamatamah;C. Mligo
东非赤道河流表现出异常复杂的季节和年际流动状况，水生和邻近的陆生生物已经适应了这种流量变化。这项研究检查了肯尼亚和坦桑尼亚马拉河上三个监测站过去40年的年流量状况。马拉河具有国际重要性，因为它是唯一一条穿越马拉-塞伦盖蒂生态区的多年生河流。选择的环境流量成分被量化并转换为生态相关的水力变量。在低流量和高流量期间，在目标研究地点收集并鉴定了植被、大型无脊椎动物和鱼类。将结果与现有的河流群落生活史和流量敏感性知识进行比较，以推断流量-生态关系。讨论了对管理的影响，包括需要保持一个动态的环境流动制度，以保护该地区的生态系统。马拉河的结果可以作为一个有用的模型，用于更广泛的赤道东非地区的河流流域。编辑z.w.k undzewicz；引用麦克莱恩，m.e.，苏巴鲁斯基，a.l.，安德森，e.p.，德苏，s.b.，梅莱斯，a.m.，恩东巴，p.m.，姆坦巴，j.o.d.，塔玛塔玛，r.a.，和Mligo， C., 2014。比较流动状态，渠道水力学和生物群落，以推断肯尼亚和坦桑尼亚马拉河的流动生态关系。水文学报，59(3),801-819。
Abstract Equatorial rivers of East Africa exhibit unusually complex seasonal and inter-annual flow regimes, and aquatic and adjacent terrestrial organisms have adapted to cope with this flow variability. This study examined the annual flow regime over the past 40 years for three gauging stations on the Mara River in Kenya and Tanzania, which is of international importance because it is the only perennial river traversing the Mara-Serengeti ecoregion. Select environmental flow components were quantified and converted to ecologically relevant hydraulic variables. Vegetation, macroinvertebrates, and fish were collected and identified at target study sites during low and high flows. The results were compared with available knowledge of the life histories and flow sensitivities of the riverine communities to infer flow–ecology relationships. Management implications are discussed, including the need to preserve a dynamic environmental flow regime to protect ecosystems in the region. The results for the Mara may serve as a useful model for river basins of the wider equatorial East Africa region. Editor Z.W. Kundzewicz; Guest editor M. Acreman Citation McClain, M.E., Subalusky, A.L., Anderson, E.P., Dessu, S.B., Melesse, A.M., Ndomba, P.M., Mtamba, J.O.D., Tamatamah, R.A., and Mligo, C., 2014. Comparing flow regime, channel hydraulics and biological communities to infer flow–ecology relationships in the Mara River of Kenya and Tanzania. Hydrological Sciences Journal, 59 (3–4), 801–819.