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 California Spotted Owl Habitat Study written by Stephen A. Laymon and published by . This book was released on 1982 with total page 38 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 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 Of Spotted Owls Old Growth and New Policies written by Bruce G. Marcot and published by . This book was released on 1997 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Population Demography of Northern Spotted Owls written by Eric D. Forsman and published by Univ of California Press. This book was released on 2011-07-21 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conclusions, and Recommendations P.75

Download or read book Estimating the Occupancy of Spotted Owl Habitat Areas by Sampling and Adjusting for Bias written by David L. Azuma and published by . This book was released on 1990 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: A basic sampling scheme is proposed to estimate the proportion of sampled units (Spotted Owl Habitat Areas (SOHAs) or randomly sampled 1000-acre polygon areas (RSAs)) occupied by spotted owl pairs. A bias adjustment for the possibility of missing a pair given its presence on a SOHA or RSA is suggested. The sampling scheme is based on a fixed number of visits to a sample unit (a SOHA or RSA) in which the occupancy is to be determined. Once occupancy is determined, or the maximum number of visits is reached, the sampling is completed for that unit. The resulting data are summarized as a set of independent Bernoulli trials; a zero (no occupancy) or one (occupancy) is recorded for each unit. The occupancy proportion is the sum of these Bernoulli trials divided by the sample size. The bias adjustment estimates this occupancy proportion for the estimated number of units on which a pair of owls was present but not detected. The bias adjustment requires the recording of the number of the visit during which occupancy was first detected. The distributional assumptions are checked with five different sets of data.

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 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 Questions and Answers on A Conservation Strategy for the Northern Spotted Owl written by and published by . This book was released on 1991 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Optimal Sampling for Radiotelemetry Studies of Spotted Owl Habitat and Home Range written by Andrew B. Carey and published by . This book was released on 1989 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Habitat Characteristics of Northern Spotted Owls in Eastern Washington written by Gina Marie King and published by . This book was released on 1993 with total page 200 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 Spatial Distribution of an Insular Spotted Owl Population in Relation to Habitat Type and Availability in Southern California written by Richard B. Smith and published by . This book was released on 1995 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Spotted Owl Strix Occidentalis written by Mark Zarn and published by . This book was released on 1974 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Using Terrestrial Ecosystem Survey Data to Identify Potential Habitat for the Mexican Spotted Owl on National Forest System Lands written by Joseph L. Ganey and published by . This book was released on 2002 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book California Spotted Owl Recovery Plan written by United States. Congress. House. Committee on Resources. Subcommittee on National Parks, Forests, and Lands and published by . This book was released on 1995 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: