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

Article Abstract:

Research undertaken in managed, young-growth forests in northwestern California into the reproductive success of northern spotted owls has established that spotted owls in the area studied are positively linked with stands characterized by middle-aged and larger trees. Younger stands made up of smaller trees have fewer owls. It appears that 21 to 40-year-old forest stands are young enough to contain a large number of woodrats, but old enough to have a high enough canopy to allow maneuverability. Residual trees were found to offer clear benefit to spotted owl reproduction.

Author: Zabel, Cynthia J., Diller, Lowell V., Thome, Darrin M.
Habitats

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Discrete-choice modeling in wildlife studies exemplified by northern spotted owl nighttime habitat selection

Article Abstract:

Nighttime habitat selection of northern spotted owls is analyzed by implementing an altered discrete-choice modeling method.

Author: Manly, Bryan F.J., McDonald, Trent L., Neilson, Ryan M., Diller, Lowell V.
Science & research, Research, Food and nutrition

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Analysis of resource selection using utilization distributions

Article Abstract:

The animal resource selection functions (RSFs) are analyzed by using utilization distribution (UD) concepts.

Author: Hubbard, Michael W., Millspaugh, Joshua J., Gitzen, Robert A., Marzluff, John M., Nielson, Ryan M., McDonald, Lyman, Rittenhouse, Chadwick D., Sheriff, Steven L.
Evaluation, Resource partitioning (Ecology)

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Subjects list: Spotted owl, Spotted owls, United States, Analysis, Usage, Habitat selection, Animal models in research, Animal research models
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