Download or read book Effects of Grazing on the Movements and Habitat Use of Western Toads Bufo Boreas on the Targhee National Forest written by Paul E. Bartelt and published by . This book was released on 1995 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Riparian Habitat Utilization by Western Toads Bufo Boreas and Spotted Frogs Rana Pretiosa on the Targhee National Forest written by Paul E. Bartelt and published by . This book was released on 1994 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bridger Teton National Forest N F Upper Green River Area Rangeland Project written by and published by . This book was released on 2004 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Western Toad Bufo Boreas Habitat Use Distribution and Conservation at Fort Lewis Washington written by Jim J. Lynch and published by . This book was released on 2006 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Caribou Targhee National Forest N F Caribou Travel Plan Revision written by and published by . This book was released on 2005 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Movements of Adult Western Toads Bufo Boreas in a Managed Forest Landscape and the Incidence of a Disease in Southwestern British Columbia written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Amphibians are declining dramatically around the globe, due primarily to two major threats: habitat destruction and emerging infectious diseases. The western toad, Bufo boreas, is an IUCN red-listed species thought to be affected by both these factors. The objectives of this thesis were to (1) determine how forest fragmentation affects western toad movement behaviour; and (2) determine if there is any evidence of the infectious disease, the chytrid fungus (Batrachochytrium dendrobatidis), in this species in British Columbia. I used radio-telemetry to follow daily movement patterns of 23 adult male toads in a fragmented landscape near Vancouver, BC, composed of forest patches and small, recent clear-cuts. Movement parameters were analyzed using a Geographic Information System (GIS) and mixed effects models. Results showed that toads in forests were able to perceive clear-cut edges from as far as 150 m. Greater than 60% of toads released in forest patches actively chose to enter the clear-cuts from adjacent forests, indicating high boundary permeability. In addition, toad movement parameters were not significantly reduced in these disturbed environments, suggesting that clear-cuts do not restrict movement. Although toads appear to favour these disturbed environments, further research is required in larger, more realistically sized clear-cuts. To investigate the prevalence of the chytrid fungus in southwestern British Columbia, I tested a breeding population of western toads in a protected area. Results showed a 28% infection rate, although no toads showed any visual signs of the disease. These results provide the first evidence of the chytrid fungus in western toads in British Columbia and suggest that the disease is potentially more widespread that currently documented. The results of my research suggest that the western toad may not be affected by small scale forest harvesting. In addition, my results support the hypothesis that western toads are reservoirs for the.
Download or read book Habitat Use and Movements of the Wyoming Toad Bufo Baxteri written by Joshua Michael Parker and published by . This book was released on 2000 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Biophysical Analysis of Habitat Selection in Western Toads Bufo Boreas in Southeastern Idaho written by Paul E. Bartelt and published by . This book was released on 2000 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conservation Plan and Agreement written by and published by . This book was released on 1998 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigating Habitat Loss as a Causal Factor in Western Toad Bufo Boreas Decline in the Lowland Puget Sound Ecoregion Using Field Surveys and GIS Analysis written by Sanders B. Freed and published by . This book was released on 2004 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Determining the Effects of Livestock Grazing on Yosemite Toads Anaxyrus Bufo Canorus and Their Habitat written by Amy J. Lind and published by . This book was released on 2011 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oregon Spotted Frog Rana Pretiosa Habitat Use and Herbage or Biomass Removal from Grazing at Jack Creek Klamath County Oregon written by Amie M. Shovlain and published by . This book was released on 2005 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: We evaluated the effects of herbage removal from livestock grazing on Oregon spotted frog (Rana pretiosa) habitat use by monitoring frog locations in grazed and matched ungrazed treatments across a range of grazing intensities at Jack Creek, Fremont-Winema National Forest, Oregon. Thirteen cattle exclosures were deployed along Jack Creek in the summer of 2003. Movements were monitored using radio telemetry on adult frogs (N = 24 frogs) within treatments sites from July through October 2004. Individual frogs were located 1 to 28 times ([mean]=11.7) and were tracked from 1 to 74 days [mean]=35.8 days). A 10-pinpoint intercept frame was used to estimate relative differences in removed vegetation cover. This difference between ungrazed treatments and paired grazed controls was used as a measure of grazing pressure at treatment sites, and examined in relation to frog habitat preference. Pin measurements ranged from an average monthly difference of -1.2 to 2.97 pin hits between an exclosure and its control. As pin differences increased by one unit, the odds of finding a frog in the exclosure increased by a factor of 1.62 (F1, 4 = 3.90, p = 0.05) with an approximate 95% confidence interval of 1.00 to 2.74. Based on the proportion of time frogs spent inside exclosures, there was evidence that as grazing pressure increased, frogs preferred ungrazed livestock exclosures. Secondary objectives of this study were to describe migration routes and identify overwintering sites of the R. pretiosa population on Jack Creek. From August to mid-December 2003, frogs (N = 36) were tracked from 5 to 92 days ([mean] = 49.5 days) and located 2 to 39 times ([mean] = 23.2 times). In mid-October, individuals were located in sheltered areas along the creek such as willow root complexes and abandoned beaver runs. Frogs also were found in deep (130 cm) pools associated with active springs and individuals in these areas were active within the pools under 5 cm of ice. Using mark-recapture techniques and deployment of cattle exclosures, we examined 1) frog migration and 2) grazing effects on frog habitat use for the Jack Creek R. pretiosa population in 2003-2004. Ultimately, a more complete understanding of the natural history of this species and how anthropogenic activities affect amphibians such as R. pretiosa will aid managers in mitigating potential adverse affects, especially in riparian systems, and contribute to recovery and restoration strategies.
Download or read book Responses of Western Toads Bufo Boreas to Changes in Terrest r ial Habitat Resulting from Wildfire written by Charles Gregory Guscio and published by . This book was released on 2007 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Feeding Ecology and Habitat Use of Juvenile Great Plains Toads Bufo Cognatus and Woodhouse s Toads B Woodhousei written by Matthew Alexis Flowers and published by . This book was released on 1994 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Some Neurochemical Correlates of Feeding Behavior in Western Toads Bufo Boreas written by Betty B. Rose and published by . This book was released on 1984 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Examination of the Distribution of Western Toad anaxyrus Boreas Across Modified Habitat in the CNC Research Forest written by Vanessa Uschenko and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Habitat Use of the Western Toad in North central Alberta and the Influence of Scale written by Constance L. Browne and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
