Download or read book Ecology of the Spotted Owl in the Central Sierra Nevada California written by Stephen A. Laymon and published by . This book was released on 1988 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study of the ecology of the spotted owl (Strix occidentalis) was conducted on the west slope of the Sierra Nevada, California from June 1982 to January 1985. Nine juvenile and 12 adult spotted owls were captured and fitted with radio transmitters. Tests of survey techniques showed an average response rate of 25% to nocturnal call surveys. Males responded more frequently than females and non-breeding owls responded more frequently than breeding owls. Reproductive success was low, with only 5 of 50 pairings producing young. Juvenile survival prior to dispersal (n = 12), was also low (33%). These results predict a rapidly declining population if not supplemented by immigration. Home ranges were determined by the minimum convex polygon method. The median summer-fall home range size for an individual spotted owl was 1210 ha (2988 acres); the median summer-fall home range size for a pair was 1660 ha (4100 acres). In November, the owls migrated downslope from mixed conifer forest above 1300 m (4265 feet) to oak-pine woodlands below 1300 m. Despite occupancy of the study area by spotted owls the site is believed to be marginal habitat based on the poor reproductive success and high mortality rates observed during the study. -- Adapted from abstract.

Download or read book Population Ecology of the Spotted Owl in the Central Sierra Nevada California written by Daryl W. Lutz and published by . This book was released on 1992 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Population Ecology of the California Spotted Owl in the Central Sierra Nevada written by Christine A Moen and published by . This book was released on 1993 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Population Ecology of the California Spotted Owl in the Central Sierra Nevada written by Christine A Moen and published by . This book was released on 1993 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Population Ecology of the California Spotted Owl in the Central Sierra Nevada written by Ralph J. Gutiérrez and published by . This book was released on 2002 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Population Ecology of the California Spotted Owl in the Central Sierra Nevada written by Michael A. Bias and published by . This book was released on 1988 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Population Ecology of the California Spotted Owl in the Central Sierra Nevada written by Daryl W. Lutz and published by . This book was released on 1989 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Population Biology of the California Spotted Owl in the Central Sierra Nevada written by Mark Evan Seamans and published by . This book was released on 2005 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The California Spotted Owl written by Jared Verner and published by DIANE Publishing. This book was released on 1994 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers: an assessment of the current status of the California spotted owl, its biology and habitat use, and forests where the subspecies occurs in the Sierra Nevada and southern California. Suggests the direction of future inventories and research, identifies projected trends in habitat, and offers guidelines and recommendations for management of the California spotted owl. Charts, tables, graphs and color photos.

Download or read book The California Spotted Owl written by Jared Verner and published by . This book was released on 1992 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The California Spotted Owl Current State of Knowledge written by Brandon M. Collins and published by . This book was released on 2017 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Population Ecology of the California Spotted Owl in the Central Sierra Nevada written by Christine A Moen and published by . This book was released on 1993 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The California Spotted Owl written by and published by . This book was released on 1992 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Juvenile Dispersal Ecology of California Spotted Owls in Southern Sierra Nevada California written by Robert Michael Tibstra and published by . This book was released on 1999 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effects of Fire on California Spotted Owls and Their Mammalian Prey in the Central Sierra Nevada California written by Susan Lynn Roberts and published by . This book was released on 2008 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Habitat Use by California Spotted Owls in the Central Sierra Nevada written by Michael A. Bias and published by . This book was released on 1989 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Home Range and Habitat Use by California Spotted Owls in the Central Sierra Nevada written by Douglas R. Call and published by . This book was released on 1990 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: