Effects of helicopter noise on Mexican spotted owls
Article Abstract:
No difference in reproductive success or the number of young fledged was found in an evaluation of the responses to helicopter noise of nesting and nonnesting spotted owls within the Sacramento Ranger District of the Lincoln National Forest in southcentral New Mexico. Notwithstanding stimulus type or season, spotted owl flush frequency increased as stimulus distance decreased. Within 10 to 15 minutes following a stimulus event, spotted owls reverted to their behavior prior to the disturbance. All adult flushes during the nesting season took place after juveniles had left the nest.
Publication Name: The Journal of Wildlife Management
Subject: Zoology and wildlife conservation
ISSN: 0022-541X
Year: 1999
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Dispersal of juvenile cougars in fragmented habitat
Article Abstract:
The dispersal of juvenile cougars in an environment with three habitat corridors was investigated via radio tagging. The study, which was conducted in the Santa Ana Mountains, CA, found that mothers pushed their cubs to disperse by abandoning them close to the edge of her home range. It also showed that the mean age of dispersing cubs was 18 months and their routes usually natural tracks without artificial outdoor lighting.
Publication Name: The Journal of Wildlife Management
Subject: Zoology and wildlife conservation
ISSN: 0022-541X
Year: 1995
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Influence of vegetation, topography, and roads on cougar movement in southern California
Article Abstract:
The movements of 10 female and 7 male cougars at 15-min intervals during 44 nocturnal between the years1988 and 1992 are examined. One of the conclusions made is that the empirical frequency distributions of distances and turning angles, along with cougar responses to vegetation, topography, and roads could help parameterize an individually based movement model for cougars in human-altered landscapes.
Publication Name: The Journal of Wildlife Management
Subject: Zoology and wildlife conservation
ISSN: 0022-541X
Year: 2005
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- Abstracts: Effects of Climate Change on Population Persistence of Desert-Dwelling Mountain Sheep in California. Holocene climate in the Western Great Lakes national parks and lakeshores: implications for future climate change
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