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Evaluating the habitat requirements ...

Hammontree, Sarah.

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Evaluating the habitat requirements of the Golden Orb mussel (Quadrula aurea) for conservation purposes.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Evaluating the habitat requirements of the Golden Orb mussel (Quadrula aurea) for conservation purposes./
作者:	Hammontree, Sarah.
面頁冊數:	68 p.
附註:	Source: Masters Abstracts International, Volume: 52-05.
Contained By:	Masters Abstracts International52-05(E).
標題:	Ecology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1524969
ISBN:	9781303753701

Evaluating the habitat requirements of the Golden Orb mussel (Quadrula aurea) for conservation purposes.
Hammontree, Sarah.

Evaluating the habitat requirements of the Golden Orb mussel (Quadrula aurea) for conservation purposes. - 68 p.

Source: Masters Abstracts International, Volume: 52-05.

Thesis (M.S.)--University of North Texas, 2013.

Many freshwater mussels are imperiled, due to a number of interrelated factors such as habitat alteration, degradation of water quality, and impoundments. The Golden Orb mussel (Quadrula aurea, I. Lea, 1859) is endemic to the state of Texas and is currently a candidate for the endangered species list, as the number of known populations has been declining in recent years. Little is currently known about Q. aurea aside from basic distribution data. This study is focused on evaluating a combination of macro-habitat and micro-habitat variables to determine their influence on the distribution and density of this species. Macro-habitat variables, including dominant land cover, surface geology, and soil erodibility factor, did not have a significant relationship with mussel distributions. The best model of micro-habitat variables that impacts the Q. aurea distributions is comprised of relative substrate stability (RSS) at moderate flows and current velocity at low flows. For all mussel species in this study, current velocity at low flows is the primary variable that influences distribution. Q. aurea are associated with habitats where larger sediment particles (large gravel and cobble) help to stabilize the substrate in areas with higher current velocities. An understanding of the preferred habitats for Q. aurea can be used to help focus conservation efforts and practices.

ISBN: 9781303753701Subjects--Topical Terms:

516476
Ecology.

Evaluating the habitat requirements of the Golden Orb mussel (Quadrula aurea) for conservation purposes.
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