Fall water requirements for seasonal diked wetlands at Lower Klamath National Wildlife Refuge

Molt migration and migratory connectivity of the long‐billed dowitcher

“…No water was available to flood wetlands at Lower Klamath NWR from March to late‐September 2013, in part, because of an ongoing severe to extreme drought in central Oregon and northern California (http://droughtmonitor.unl.edu/, accessed 10 Nov 2014). Lower Klamath NWR is where Shuford et al () recorded the highest abundance of dowitchers in the Klamath Basin during August surveys, but the refuge currently relies on water diversions from the Klamath River or funding to import water from elsewhere (Mayer and Thomasson ). The paucity of water resulted in the drying of all wetlands in Lower Klamath NWR by August 2013 (e.g., Unit 12C; B.…”

A management-oriented valuation method to determine ecological water requirement for wetlands in the Yellow River Delta of China

“…These methods are generally divided into three major categories, based on similar principles and assumptions: historic record methods; hydraulic rating methods (Mayer & Thomasson 2004); and habitat simulated methods (Cui & Yang 2002a. The historic record methods define the ecological water requirement based on the recorded or estimated natural hydrological regime.…”

An evaluation and review of water-use estimates and flow data for the Lower Klamath and Tule Lake National Wildlife Refuges, Oregon and California

“…During the autumn floodup, when sufficient water deliveries are sent to the refuges, water levels are manipulated in each unit until the target level is reached (Tim Mayer, U.S. Fish and Wildlife Service, Portland, Oregon, written commun., 2005). Mayer and Thomasson (2004) measured the volume of water needed to fill three representative seasonal-wetland units in the Lower Klamath refuge. In their study, this volume of water was also partitioned into soil saturation requirements, surfacewater volume, and evapotranspiration losses.…”