How much water does a river need
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Cites background from "How much water does a river need"
...…growing awareness that maintenance of natural variability in flows and water levels is essential to underpin conservation strategies for freshwater or water-associated biodiversity and their habitats (Poff et al., 1997; Richter et al., 1997, 2003; Pollard & Huxham, 1998; Arthington & Pusey, 2003)....
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Cites background or methods from "How much water does a river need"
...Such methodologies include the Texas method (Matthews and Bao, 1991) and basic flow method (Palau and Alcazar, 1996), used in at least four and two countries, respectively (Appendix I), as well as the range of variability approach (RVA; Richter et al., 1996, 1997) and flow translucency approach (Gippel, 2001)....
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...…include the Texas method (Matthews and Bao, 1991) and basic flow method (Palau and Alcazar, 1996), used in at least four and two countries, respectively (Appendix I), as well as the range of variability approach (RVA; Richter et al., 1996, 1997) and flow translucency approach (Gippel, 2001)....
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...These trends suggest that many countries have not yet recognized and embedded in water resources policy and management the critical importance of the hydrological regime as the primary driver of ecological processes in river–floodplain systems (Junk et al., 1989; Poff et al., 1997; Richter et al., 1997) and the role of environmental flows in the long-term maintenance and sustainability of such systems, or have not yet made such assessments a priority (Tharme, 1996)....
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...In recent years, more sophisticated hydrology-based methodologies, most notably RVA (Richter et al., 1996, 1997), have drawn interest outside of the countries in which they were developed, through their increased emphasis on flow variability and/or utilization of ecologically relevant, multiple hydrological indices in the determination of environmental flows....
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...In recent years, more sophisticated hydrology-based methodologies, most notably RVA (Richter et al., 1996, 1997), have drawn interest outside of the countries in which they were developed, through their increased emphasis on flow variability and/or utilization of ecologically relevant, multiple…...
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"How much water does a river need" refers background in this paper
...Increased frequency or duration of high flow levels may displace velocity-sensitive organisms, such as some periphyton, phytoplankton, macrophytes, macroinvertebrates, young fish and deposited eggs (Moog, 1993; Allan, 1995 )....
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...A myriad of environmental attributes are known to shape the habitat templates (sensu Southwood, 1977, 1988) that control aquatic and riparian species distributions, including flow depth and velocity, temperature, substrate size distributions, oxygen content, turbidity, soil moisture/saturation, and other physical and chemical conditions and biotic influences ( Allan, 1995 )....
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...First, as discussed previously, many other abiotic characteristics of riverine ecosystems vary with streamflow conditions, including dissolved oxygen levels, water temperature, suspended and bed-load sediment size distributions, and streambed stability (Ward & Stanford, 1983; Sparks, 1992; Nestler, Schneider & Latka, 1994; Allan, 1995; Richter et al., 1996)....
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