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Zoology and wildlife conservation

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California spotted owl habitat selection in the central Sierra Nevada

Article Abstract:

California spotted owls associate closely with old forests, but habitat conservation is difficult as their large home ranges encompass valuable areas of forestry. Conflict has arisen when attempts have been made to maintain spotted owl populations by limiting logging on federal land. A new study looks at the habitat selection of spotted owls in central Sierra Nevada. The study examines the landscape characteristics surrounding 25 owl activity centers and shows that roosts and nest stands contain more residual trees, which are an important habitat for spotted owls.

Author: Gutierrez, R.J., Moen, Christine A.
Publisher: Wildlife Society
Publication Name: The Journal of Wildlife Management
Subject: Zoology and wildlife conservation
ISSN: 0022-541X
Year: 1997
Observations, Sierra Nevada (United States), Habitat selection

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Forest stand characteristics and reproduction of northern spotted owls in managed north-coastal California forests

Article Abstract:

There is a positive relationship between spotted owls on Simpson Timber Company (STC)'s young-growth timberlands and stands characterized by middle-aged and larger trees. It is believed that these associations were due to high prey availability in those stands. This was gleaned from a study of the reproductive success of northern spotted owls at 51 sites on STC's managed young-growth forests in California from 1991 to 1995. Meanwhile, spotted owls were found to be negatively associated with stands that were younger and consisting of smaller trees.

Author: Zabel, Cynthia J., Diller, Lowell V., Thome, Darrin M.
Publisher: Wildlife Society
Publication Name: The Journal of Wildlife Management
Subject: Zoology and wildlife conservation
ISSN: 0022-541X
Year: 1999
Research, California, Habitat (Ecology), Reproduction (Biology), Reproduction, Animal reproduction

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Subjects list: Natural history, Habitats, Birds, Spotted owl, Spotted owls
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