Download or read book Updated Status Report on the Grizzly Bear Ursus Arctos Horribilis in Canada written by Vivian Banci and published by . This book was released on 1991 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Status Report on Grizzly Bear Ursus Arctos Horribilis in Canada written by Anne Macey and published by . This book was released on 1979 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Status Report on the Grizzly Bear Ursus Arctos Horribilis in Canada written by Macey, Anne and published by . This book was released on 1990* with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Status Report on the Grizzly Bear Ursus Arctos Horribilis written by Anne Macey and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Status Report on the Grizzly Bear Ursus Arctos Horribilis written by Banci, Vivian and published by . This book was released on 1991* with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Status of the Grizzly Bear Ursus Arctos Horribilis in Canada written by Anne Macey and published by . This book was released on 1979 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book COSEWIC Assessment and Update Status Report on the Grizzly Bear Ursus Arctos in Canada written by and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Status of the Grizzly Bear Ursus Arctos in Alberta written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Grizzly Bear written by and published by . This book was released on 1995 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Status of the Grizzly Bear Ursus Arctos in Alberta written by John L. Kansas and published by . This book was released on 2002 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book COSEWIC Assessment and Status Report on the Grizzly Bear Ursus Arctos in Canada written by and published by . This book was released on 2012 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Committee on the Status of Endangered Wildlife in Canada (COSEWIC) status reports are working documents used in assigning the status of wildlife species suspected of being at risk. This document includes both an assessment and status report on the western and Ungava populations of grizzly bear (Ursus arctos) in Canada. It includes species information, distribution, habitat, and biology information, as well as population sizes and trends, limiting factors and threats, special significance of the species, and existing protection or other status.--Includes text from document.

Download or read book Status of the Grizzly Bear Ursus Arctos in Alberta written by John L. Kansas and published by . This book was released on 2010 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The grizzly bear (Ursus arctos) in Alberta was recommended for Threatened designation in 2002, however this recommendation was not accepted by the Minister of Sustainable Resources Development. Federally, the grizzly bear in Canada was assessed as a species of Special Concern that same year, based mostly on its life-history characteristics, strong evidence of habitat loss, and population decline at the southern edge of its range. This status report was prepared to assist Alberta's Endangered Species Conservation Committee in its re-assessment of the status of grizzly bears. It updates the 2002 status report with new information on population estimates population dynamics and habitat trends. That new information includes a major DNA-based population estimate, cutting-edge research on habitat use and trends in habitat availability, and recent analysis of the population dynamics of grizzly bears in Alberta based on monitoring marked individuals and records or mortality. Sections of the 2002 report on the general biology and food habits of grizzly bear were updated only if relevant new information had become available.--Document.

Download or read book Human Impacts on Grizzly Bear Ursus Arctos Horribilis Habitat Demography and Trend at Variable Landscape Scales written by Richard D. Mace and published by . This book was released on 1999 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Status Report on the Grizzly Bear written by Canada. Committee on the Status of Endangered Wildlife in Canada and published by . This book was released on 1991 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Status of the Grizzly Bear Ursus Arctos in Alberta written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Species Status Report written by and published by . This book was released on 2017 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Analysis of Methodologies for Assessing Grizzly Bear Ursus Arctos Horribilis Populations written by Erin Sherry and published by . This book was released on 1996 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: ?Grizzly bears (Ursus arctos horribilis) are one of the largest terrestrial North American mammals. Once the most widespread bear species in the world, the grizzlies’ range and numbers have been reduced by fifty percent since 1890. These bears occur at low densities, are reproductively conservative, have large home ranges, and require a diversity of complex wilderness habitats where human activity is minimal. In the Banff National Park / Kananaskis Country region of southwestern Alberta, the grizzly bear has survived, albeit in reduced numbers and with continual loss of habitat. Current estimated grizzly bear numbers deviated significantly from current estimated population potential reflecting such human impacts as over-harvesting, illegal mortalities, habitat alienation, and habitat fragmentation. There is a pressing need for population inventory research. Managers lack baseline population information. Existing estimates of population parameters are unreliable, involving broad confidence limits and problems related to methods, sample sizes, and mark-recapture model biases. This study reviews methodologies for assessing grizzly bear populations and the difficulties encountered in these studies. Researchers interested in monitoring the status and trends of grizzly populations have used a variety of methods - secondhand reports, harvest data indices, bait and scent stations indices, surveys of bear sign, population modelling, direct counts, aerial surveys, and mark-recapture population studies. Each suffers from problems of assumptions, sample size, and uncontrolled variability. As Harris (1986) admits, none can be accepted unequivocally, but all approaches have some potential utility. This dissertation explores the development and application of DNA-based mark-recapture methods to evaluate a grizzly bear population in the eastern slopes of the Canadian Rocky Mountains. Forty scent station ‘hair traps’ were monitored for a total of 1328 site nights and produced 250 hair samples: 165 brown or grizzled hair samples; 74 glossy, jet black hair samples; and 11 non-bear hair samples. Of these 250 hair samples collected, 223 had intact follicles and produced DNA samples. DNA-based mark-recapture can be exploited at several levels of population monitoring resolution depending upon population investigation objectives, financial constraints, and logistical considerations. This technique can be used to provide a basic population inventory, to assess absolute abundance, to evaluate demographic processes, or to provide information on the genetic composition or biotoxin accumulation levels of a bear population. In mountainous, remote, forested regions, such as the Central Rockies ecosystem, DNA-based mark-recapture methods present a viable alternative to physical mark-recapture techniques and are superior to photographic-based mark-recapture methods. More research is required to conclusively show that DNA-based mark-recapture will provide objective and replicable estimates of grizzly bear population parameters banded by acceptable confidence limits. The problems of small sample sizes, and of mark-recapture model assumption violations due to unequal capture probabilities and lack of closure, remain intractable in this study.?--Leaf viii.