Density of northern spotted owls in northwest California

A. B. Franklin; J. P. Ward; R. J. Gutierrez; G. I. Gould

doi:10.2307/3808893

Density of northern spotted owls in northwest California

A. B. Franklin, J. P. Ward, R. J. Gutierrez, G. I. Gould

Fisheries, Wildlife, and Conservation Biology

Research output: Contribution to journal › Article › peer-review

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Abstract

For Strix occidentalis caurina, sampling yielded a crude density of 0.235 owls/km² (95% CI = 0.214-0.256) and ecological densities of 0.544 (0.495-0.592) and 0.660 (0.601-0.719) owls/km² of suitable habitat (2 definitions). Increases in density over 4 yr were attributed to population processes, such as immigration. Densities were relatively high when compared with other populations. Estimates from this study and the US Forest Service indicate a 60.0-82.5% reduction of current spotted owl populations on at least 1 National Forest under current management plans by the US Forest Service. -from Authors

Original language	English (US)
Pages (from-to)	1-10
Number of pages	10
Journal	Journal of Wildlife Management
Volume	54
Issue number	1
DOIs	https://doi.org/10.2307/3808893
State	Published - 1990

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abstract = "For Strix occidentalis caurina, sampling yielded a crude density of 0.235 owls/km2 (95% CI = 0.214-0.256) and ecological densities of 0.544 (0.495-0.592) and 0.660 (0.601-0.719) owls/km2 of suitable habitat (2 definitions). Increases in density over 4 yr were attributed to population processes, such as immigration. Densities were relatively high when compared with other populations. Estimates from this study and the US Forest Service indicate a 60.0-82.5% reduction of current spotted owl populations on at least 1 National Forest under current management plans by the US Forest Service. -from Authors",

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T1 - Density of northern spotted owls in northwest California

AU - Franklin, A. B.

AU - Ward, J. P.

AU - Gutierrez, R. J.

AU - Gould, G. I.

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N2 - For Strix occidentalis caurina, sampling yielded a crude density of 0.235 owls/km2 (95% CI = 0.214-0.256) and ecological densities of 0.544 (0.495-0.592) and 0.660 (0.601-0.719) owls/km2 of suitable habitat (2 definitions). Increases in density over 4 yr were attributed to population processes, such as immigration. Densities were relatively high when compared with other populations. Estimates from this study and the US Forest Service indicate a 60.0-82.5% reduction of current spotted owl populations on at least 1 National Forest under current management plans by the US Forest Service. -from Authors

AB - For Strix occidentalis caurina, sampling yielded a crude density of 0.235 owls/km2 (95% CI = 0.214-0.256) and ecological densities of 0.544 (0.495-0.592) and 0.660 (0.601-0.719) owls/km2 of suitable habitat (2 definitions). Increases in density over 4 yr were attributed to population processes, such as immigration. Densities were relatively high when compared with other populations. Estimates from this study and the US Forest Service indicate a 60.0-82.5% reduction of current spotted owl populations on at least 1 National Forest under current management plans by the US Forest Service. -from Authors

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Density of northern spotted owls in northwest California

Abstract

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