Download or read book An Apparent Case of Long distance Breeding Dispersal by a Mexican Spotted Owl in New Mexico written by Joseph L. Ganey and published by . This book was released on 2013 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dispersal and Habitat Use of Mexican Spotted Owls in New Mexico final Report written by A. Hodgson and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dispersal and Habitat Use of Mexican Spotted Owls in New Mexico written by Angela Hodgson and published by . This book was released on 1996 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book General Technical Report RMRS written by and published by . This book was released on 1998 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preliminary Risk Assessment of the Mexican Spotted Owl Under a Spatially weighted Foraging Regime at the Los Alamos National Laboratory written by and published by . This book was released on 1997 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Breeding Habitat Ecology of the Mexican Spotted Owl in the Tularosa Mountains New Mexico written by Mark E. Seamans and published by . This book was released on 1994 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Feasibility of a Random Quadrat Study Design to Estimate Changes in Density of Mexican Spotted Owls written by Christopher A. May and published by . This book was released on 1996 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dietary Overlap Between Sympatric Mexican Spotted and Great Horned Owls in Arizona written by Joseph L. Ganey and published by . This book was released on 2005 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: We estimated diet composition of sympatric Mexican spotted (Strix occidentalis lucida, n = 7 pairs of owls) and great horned owls (Bubo virginianus, n = 4 pairs) in ponderosa pine (Pinus ponderosa) - Gambel oak (Quercus gambelii) forest, northern Arizona. Both species preyed on mammals, birds, and insects; great horned owls also ate lizards. Mammals dominated the diet of both species. Mammals comprised 63 and 62% of all prey items identified in diets of spotted and great horned owls, respectively, and 94 and 95% of prey biomass. Both species primarily preyed on a few groups of small mammals. Observed overlap in diet composition between species (0.95) was greater than expected based on null models of diet overlap, and the size range of prey taken overlapped entirely. Mean prey mass was similar for both species (great horned owl, 47.0 ± 7.4 g [SE], n = 94 items; spotted owl, 40.1 ± 1.8 g, n = 1,125 items). Great horned owls consumed larger proportions of diurnally active prey than spotted owls, which primarily consumed nocturnally active mammals. Our results, coupled with a previous analysis showing that these owls foraged in the same general areas (Ganey and others 1997), suggests that they could compete for food resources, which are assumed to be limiting in at least some years. They may minimize the potential for resource competition, however, by concentrating foraging activities in different habitats (Ganey and others 1997) and by foraging at different times, when different suites of prey species are active.
Download or read book Natal and Breeding Dispersal of Northern Spotted Owls written by and published by . This book was released on 2002 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mexican Spotted Owl Reproduction Home Range and Habitat Associations in Grand Canyon National Park written by Timothy Scott Bowden and published by . This book was released on 2008 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mexican spotted owls (Strix occidentalis lucida) are nocturnal avian predators that are widely distributed in the southwest U.S. and northern Mexico. In 1993, the lucida subspecies was listed as threatened in response to concern over the loss of forest habitats to which the owl is widely associated. However, in the northwestern corner of their range spotted owls primarily inhabit steep-walled rocky canyons. Owl populations inhabiting this region have received less attention than populations using forests, although, canyon populations are important to the persistence of the subspecies, and are subject to different environmental pressures. I investigated the breeding ecology and home range characteristics of Mexican spotted owls within Grand Canyon which supports both forest and rocky canyon habitat. During the study from 2004 - 2006, female fecundity (mean = 0.86), calculated as the number of female fledglings per paired female, was relatively high compared to values reported previously for Mexican spotted owls. Five adult male owls were radio-tracked during the breeding season. I used minimum convex polygons and fixed kernel estimates to describe home range size (mean = 356 ha and 372 ha, respectively) and generated adaptive kernels to describe areas of concentrated use within home ranges. I used GIS to describe vegetation and geology cover types associated with owl use areas. This information was used to determine if spotted owls used landscape cover types disproportionately to their availability. At a landscape level, spotted owl telemetry locations were positively correlated with piñyon-juniper vegetation that occurred within canyons as well as with the Redwall and Muav geologic layers (p
Download or read book Home Range and Habitat Use Characteristics of the Mexican Spotted Owl in the Southern Sacramento Mountains New Mexico written by Kenneth Walter Kroel and published by . This book was released on 1991 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Raptors of New Mexico written by Jean-Luc E. Cartron and published by University of New Mexico Press. This book was released on 2010 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt: This beautifully illustrated study is the first book to focus on the birds of prey of New Mexico.
Download or read book Mexican Spotted Owl written by New Mexico. Department of Game and Fish and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Fire on Mexican Spotted Owls in Arizona and New Mexico written by Jeffrey S. Jenness and published by . This book was released on 2000 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Winter Movements and Range Use of Radio marked Mexican Spotted Owl written by Joseph L. Ganey and published by . This book was released on 2005 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: "We summarized existing knowledge on winter movements and range and habitat use of radio-marked Mexican spotted owls. In light of that information, we evaluated the adequacy of current management guidelines. Seasonal movement or "migration" appears to be a regular feature of the winter ecology of Mexican spotted owls. Most radio-marked owls studied were resident in and around their breeding areas year-round, but some owls migrated in most populations studied. Owls that were year-round residents generally expanded their home range during the non-breeding season, and many exhibited spatial shifts in area used. Despite these shifts, however, overlap between seasonal ranges was relatively great for most individuals. For these owls, current guidelines aimed at conserving nesting habitat also would conserve areas used during the non-breeding season. Additional recovery plan guidelines aimed at protecting habitats with structure similar to nesting areas should be useful in protecting other areas used by resident owls expanding their range during winter. In contrast, migrating owls typically moved to lower elevations and into open habitats not used by breeding owls. Current guidelines do not protect these habitats. However, we currently have (1) no evidence that such habitats are limiting, (2) no evidence that special protection is necessary in these areas and/or habitats, (3) little information on which to base such protective measures if they are necessary, and (4) no objective way to identify important wintering areas used by migrating owls. Until better information is available, we see no compelling reason to develop specific guidelines for protection of wintering areas."
Download or read book A Mexican Spotted Owl Habitat Model from the Jemez Mountains of Northern New Mexico written by Charles Dean Hathcock and published by . This book was released on 2003 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Southwestern Region Amendment of Forest Plans to Include Northern Goshawk and Mexican Spotted Owl Direction AZ NM written by and published by . This book was released on 1995 with total page 878 pages. Available in PDF, EPUB and Kindle. Book excerpt:
