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Kesterson National Wildlife Refuge was established in 1986. It was created to provide habitat for migratory birds and other wildlife in the San Joaquin Valley of California. The refuge gained attention due to environmental issues related to agricultural runoff and its impact on wildlife.
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When was Lorna Kesterson born?
Lorna Kesterson was born on 1925-12-30.
When did Lorna Kesterson die?
Lorna Kesterson died on 2012-01-16.
When was Tensas River National Wildlife Refuge created?
Emiquon National Wildlife Refuge was created in 2000.
What is the national range?
National range is a National Wildlife Refuge. The National Wildlife Refuge is located in Western Montana.
When was Matlacha Pass National Wildlife Refuge created?
Matlacha Pass National Wildlife Refuge was created on 1908-09-26.
When was Sayville National Wildlife Refuge created?
Mark Twain National Wildlife Refuge Complex was created in 1958.
What is the chemical reaction that how is how the bacteria make Se0 using hydrogen sulfide H2S and selenate?
Case History: Kesterson National Wildlife Refuge Background Kesterson National Wildlife Refuge, California. In the San Joaquin Valley, irrigation water wasn't draining properly, and crops were dying in the water-logged soil. In 1981, a drainage system was built that would channel irrigation runoff into shallow ponds called Kesterson Reservoir. In addition to receiving field runoff, the new reservoir was to be a waterfowl habitat. In 1983, an unusually large number of dead birds was found, indicating that something was wrong with the water. Selenium from the soil (in the form of selenate, SeO42-) was dissolving in the irrigation water and being carried to Kesterson Reservoir, where it stayed. The concentration of selenium in Kesterson rose to 29 times higher than that which was considered safe. For now, to prevent the killing of more birds, Kesterson Reservoir is being filled with soil. But the selenium remains. A number of bacteria, including Bacillus, Acinetobacter, and Pseudomonas, can convert selenate (SeO42-) to nontoxic elemental selenium. The bacteria do this for their own survival-to prevent the accumulation of toxic levels in their cells. QuestionWhat is the chemical reaction that shows how the bacteria make Se0, using hydrogen sulfide (H2S) and selenate?
When was Desecheo National Wildlife Refuge created?
Desecheo National Wildlife Refuge was created in 1976.
When was Catahoula National Wildlife Refuge created?
Catahoula National Wildlife Refuge was created in 1958.
When was Tetlin National Wildlife Refuge created?
Tetlin National Wildlife Refuge was created in 1980.
When was Nisqually National Wildlife Refuge created?
Nisqually National Wildlife Refuge was created in 1974.
When was Toppenish National Wildlife Refuge created?
Toppenish National Wildlife Refuge was created in 1964.
