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Assessing Distribution Habitat Suitability And Site Occupancy Of Great Gray Owls Strix Nebulosa In California
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Book Synopsis Assessing Distribution, Habitat Suitability, and Site Occupancy of Great Gray Owls (Strix Nebulosa) in California by : Carie L. Sears
Download or read book Assessing Distribution, Habitat Suitability, and Site Occupancy of Great Gray Owls (Strix Nebulosa) in California written by Carie L. Sears and published by . This book was released on 2006 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Winter Distribution, Habitat Use, and Conservation Status of the Sierra Nevada Great Gray Owl (Strix Nebulosa) by : Eric Paludan Bulow Jepsen
Download or read book Winter Distribution, Habitat Use, and Conservation Status of the Sierra Nevada Great Gray Owl (Strix Nebulosa) written by Eric Paludan Bulow Jepsen and published by . This book was released on 2009 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Central Sierra Nevada great gray owls are facultative, elevational, winter migrants. Access to winter habitat is important to their ecology. Winter observations and remotely sensed habitat variables informed a predictive model of the environmental requirements and geographic distribution of this owl population. Using the modeled distribution map we analyzed habitat variables, ownership, development footprint, and projected development across 20% probability classes. The high probability class (80-100%) was only 0.2% of the total study area. High-probability areas were characterized by Sierran Yellow Pine forest surrounding relatively small, flat areas of grassland, wet meadow, and riparian habitats, within the mid-elevation range. Winter great gray owls preferred undeveloped, wildland areas. The major landowners of the high probability class were United States Forest Service (23%), National Park Service (43%), private landowners (32%), and miscellaneous agencies (2%). Less than 1% of preferred habitat on agency-owned lands was developed, while 38% of preferred habitat on private lands was developed past a rural density. Similarly, projected development involved only private lands, with 44% and 60% of high- and medium-to-high (40-100%) suitability areas respectively developed beyond rural by the year 2040. Our findings indicate that there is a strong overlap in winter areas preferred by great gray owls in the central Sierra Nevada and areas that are currently and projected to be developed in the near future. To ensure population viability of the central Sierra Nevada great gray owl, conservation efforts should prioritize habitat preservation in areas of private ownership that overlap with preferred great gray owl winter habitat.
Book Synopsis Status, Distribution and Ecology of the Great Gray Owl (Strix Nebulosa) in California by : Jon Winter
Download or read book Status, Distribution and Ecology of the Great Gray Owl (Strix Nebulosa) in California written by Jon Winter and published by . This book was released on 1986 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Status and Distribution of the Great Gray Owl in California by : Jon Winter
Download or read book Status and Distribution of the Great Gray Owl in California written by Jon Winter and published by . This book was released on 1980 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Owls of North America and the Caribbean by : Scott Weidensaul
Download or read book Owls of North America and the Caribbean written by Scott Weidensaul and published by Houghton Mifflin Harcourt. This book was released on 2015 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: "With detailed information about identification, calls, habitat, breeding, nesting, and behavior, this reference guide has the most up-to-date information about natural history, taxonomy, biology, ecology, migration and conservation status."--Book jacket.
Book Synopsis Flammulated, Boreal, and Great Gray Owls in the United States by : Gregory Dale Hayward
Download or read book Flammulated, Boreal, and Great Gray Owls in the United States written by Gregory Dale Hayward and published by . This book was released on 1994 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Birds of the Sierra Nevada by : Ted Beedy
Download or read book Birds of the Sierra Nevada written by Ted Beedy and published by Univ of California Press. This book was released on 2013-06-17 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: This beautifully illustrated and user-friendly book presents the most up-to-date information available about the natural histories of birds of the Sierra Nevada, the origins of their names, the habitats they prefer, how they communicate and interact with one another, their relative abundance, and where they occur within the region. Each species account features original illustrations by Keith Hansen. In addition to characterizing individual species, Birds of the Sierra Nevada also describes ecological zones and bird habitats, recent trends in populations and ranges, conservation efforts, and more than 160 rare species. It also includes a glossary of terms, detailed maps, and an extensive bibliography with over 500 citations.
Book Synopsis Habitat Suitability Index and Capability Models for the Great Gray Owl in California by : Thomas W. Beck
Download or read book Habitat Suitability Index and Capability Models for the Great Gray Owl in California written by Thomas W. Beck and published by . This book was released on 1986 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Lake Tahoe Basin Management Unit, South Shore Fuel Reduction and Healthy Forest Restoration by :
Download or read book Lake Tahoe Basin Management Unit, South Shore Fuel Reduction and Healthy Forest Restoration written by and published by . This book was released on 2011 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Updated Status Report on the Great Gray Owl, Strix Nebulosa, in Canada by : David A. Kirk
Download or read book Updated Status Report on the Great Gray Owl, Strix Nebulosa, in Canada written by David A. Kirk and published by . This book was released on 1996 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides an update on the status of Strix nebulosa, the great gray owl, since its designation as a vulnerable species in 1979. Information is included on the bird's geographic distribution, population size and trends, forest habitat, and factors limiting the owl population. Concludes with discussion of the status of the species and a proposed conservation designation, with the rationale for such a status.
Book Synopsis Non-invasive Bioacoustic Techniques for Detecting and Monitoring the Sierra Nevada Great Gray Owl (Strix Nebulosa) by : Joseph Robert Rowley Medley
Download or read book Non-invasive Bioacoustic Techniques for Detecting and Monitoring the Sierra Nevada Great Gray Owl (Strix Nebulosa) written by Joseph Robert Rowley Medley and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: California great gray owls are rare, nocturnal, secretive, and have a limited geographic distribution in the Central Sierra Nevada, rendering them a difficult species to study. Current survey methods are time and cost intensive, and require the use of nocturnal broadcast surveys to elicit territorial responses. Using autonomous recording units (ARUs) and acoustic editing software, we investigated the utility of bioacoustic technology as an alternative survey methodology for great gray owls. We conducted ARU sampling at a total of 50 meadow sites divided evenly between Yosemite National Park and Stanislaus National Forest. Half of these sites within each category consisted of sites historically occupied by great gray owls, while the other half consisted of randomly selected but suitable habitat during the spring and summer of 2009. Specifically, our goals were to estimate probabilities of detection for great gray owls using ARUs and compare those estimates with those afforded by the broadcast survey methodology. Additionally, we aimed to quantify sampling design tradeoffs of ARU spacing and recording duration, describe great gray owl vocalization behaviors, and conduct a comparative cost estimation between survey methods. We used a maximum likelihood-based modeling approach to estimate probabilities of detection and occupancy. Estimates of single visit probability of detection for ARUs (0.708) were similar or favorable to those afforded by the broadcast method, with the exception of Stanislaus National Forest random sites, where estimates of probability of detection for ARUs were slightly lower than those from the broadcast method. Under our ARU sampling strategy, and multiple reduced sampling strategies that we analyzed, very high overall probabilities of detection >0.90 could be achieved after two to five nights of sampling. We detected a total of 63,612 great gray owl vocalization events across 24 sample sites. 88% of all vocalization events were detected during the twelve-hour period between 1900 and 0700 hours. Our comparative cost estimate suggests that ARU surveys are more cost effective than broadcast protocol strategies when the number of annual sampling sites exceeds 20, especially in multi-year studies, as the annual cost for ARU sampling decreases significantly once the units have been acquired. Our results indicate that ARUs provide a non-invasive, cost-effective alternative method with comparable estimates of probability of detection to broadcast survey techniques for monitoring the rare and elusive California great gray owl. Additionally, our methods have broader management implications, as they can be applied to monitoring multiple species of birds or other terrestrial vertebrates. We suggest that land managers tasked with monitoring great gray owls and other rare species consider ARUs as a non-invasive monitoring alternative or supplement to methodologies currently in use.
Book Synopsis The Structures and Syntheses of Rhizocarpic Acid and Epanorin by : Robert L. Frank
Download or read book The Structures and Syntheses of Rhizocarpic Acid and Epanorin written by Robert L. Frank and published by . This book was released on 1950 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Habitat Relationships of Great Gray Owl Prey in Meadows of the Sierra Nevada Mountains by : Ryan S. Kalinowski
Download or read book Habitat Relationships of Great Gray Owl Prey in Meadows of the Sierra Nevada Mountains written by Ryan S. Kalinowski and published by . This book was released on 2012 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flammulated, Boreal, and Great Gray Owls in the United States by : Gregory D. Hayward
Download or read book Flammulated, Boreal, and Great Gray Owls in the United States written by Gregory D. Hayward and published by Wildlife Research Group. This book was released on 1997-06-01 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: A conservation assessment on three species of forest owls that occur on national forest lands in the U.S.: Flammulated Owls, Boreal Owls, and Great Gray Owls. Contents: methods and terminology used with studies of habitat associations; current management situation of the 3 species: review of technical knowledge of the 3 species; dynamics of Ponderosa and Jeffrey Pine forests; conservation status of the 3 species of Owls in the U.S.; information needs of the 3 species of Owls; dynamics of Subalpine Forests. Extensive references. Photos, charts and tables.
Book Synopsis Flammulated, Boreal, and Great Gray Owls in the United States by : Gregory Dale Hayward
Download or read book Flammulated, Boreal, and Great Gray Owls in the United States written by Gregory Dale Hayward and published by . This book was released on 1994 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bioacoustic Techniques to Monitor Great Gray Owls (Strix Nebulosa) in the Sierra Nevada by : Cameron B. Rognan
Download or read book Bioacoustic Techniques to Monitor Great Gray Owls (Strix Nebulosa) in the Sierra Nevada written by Cameron B. Rognan and published by . This book was released on 2007 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Summer Habitat Use by the Great Gray Owl (Strix Nebulosa) in Southeastern Manitoba by : Maria C. Servos
Download or read book Summer Habitat Use by the Great Gray Owl (Strix Nebulosa) in Southeastern Manitoba written by Maria C. Servos and published by . This book was released on 1987 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: