Birds of Indian Subcontinent

Biological Colonization of an Industrial Pond: Status After Two Decades

Publication Type:Journal Article
Year of Publication:1981
Authors:Rickard, WH, Fitzner, RE, Cushing, CE
Journal:Environmental Conservation
Date Published:1981
ISBN Number:0376-8929
Keywords:Fulica, Fulica americana, Fulica atra, Podicipedidae, Podilymbus, Podilymbus podiceps, Rallidae
Abstract:ABSTRACT The biological status of an isolated, man-made pond established in 1957 is described principally after its first 20 years of existence. The pond is located in the dry sagebrush region of south-central Washington (USA), and is colonized by Bulrushes, Cattails, and numerous Algae. Migratory waterfowl were the first vertebrate users of the pond; and with the establishment of shoreline plant communities and submerged macrophytes, the pond now provides nesting habitat for several duck species, American Coots, and Pied-billed Grebes. Use of the pond by large mammals is limited to visits by Mule Deer, Coyotes, and Raccoons. There are no Muskrats or Beavers in the pond. Turtles and Garter Snakes are not found in or around the pond but are present in the near-by Columbia and Yakima Rivers. The absence of these vertebrate animals is attributed to the isolation of the pond and the absence of connecting surface waterways between the pond and the regional watercourses. The only fish in the pond are Goldfishaquatic arthropods, crustaceans, and snailsespecially caesium-137. Radiocaesium is mostly confined to bottom sediments, but is readily assimilated by biota and so appears in all trophic levels. Some of the societal concerns and research potentials associated with the pond are discussed with special references to food-chain and biotic transport mechanisms.
Short Title:Environmental Conservation
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