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A Review Of The Literature On The Mountain Beaver
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Book Synopsis A Review of the Literature on the Mountain Beaver by : Alfred J. Godin
Download or read book A Review of the Literature on the Mountain Beaver written by Alfred J. Godin and published by . This book was released on 1964 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes the available knowledge about the mountain beaver, Aplodontia rufa, and lists some 260 literature references. Since the first account in 1805, from the Lewis and Clark expedition, a considerable literature has accumulated, much of which is no longer generally available. The mountain beaver, considered the most primitive of living rodents, is found only on the Pacific coast of North America. Type localities and ranges of the seven races are listed.
Book Synopsis A Review of the Literature on the Mountain Beaver by : Alfred J. Godin
Download or read book A Review of the Literature on the Mountain Beaver written by Alfred J. Godin and published by . This book was released on 1964 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Review of the Literature on the Mountain Beaver by :
Download or read book A Review of the Literature on the Mountain Beaver written by and published by . This book was released on 1964 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Review of Literature on Mountain Beaver [with Bibliography] by :
Download or read book Review of Literature on Mountain Beaver [with Bibliography] written by and published by . This book was released on 1964 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Capture-recapture Analysis of a Mountain Beaver Population in Western Oregon by : Bill Pertl Lovejoy
Download or read book A Capture-recapture Analysis of a Mountain Beaver Population in Western Oregon written by Bill Pertl Lovejoy and published by . This book was released on 1972 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes the results of a field study of a population of the Pacific mountain beaver, Aplodontia rufa pacifica, from August 1965 through August 1967. The study site consisted of a 13. 5- acre grid on a logged over area in the Coast Range Mountains of Benton County, Oregon. The report also includes new data on the postnatal development, growth, and behavior of two litters of mountain beavers born and raised in captivity. The field study involved the mark-release-and-recapture method using a rotational system of live-trapping on a weekly basis. A total of 5, 144 trap-nights yielded 872 captures of 181 individuals. Of this total, 109 were adult animals and 72 were juveniles Males outnumbered females 61.9 percent to 38. 2 percent. Population estimates were determined by direct enumeration and, ranged from a low of 41 in mid-winter to a high of 54 in July. Densities varied from 2.60 to 3.43 animals per acre. Transients made up a considerable portion of the catch. Longevity records of 5 to 6 years were estimated for wild mountain beavers. Adult males had an average home range size of 0.80 acres, adult females 0.42 acres. The home range of juveniles averaged 0.31 acres. Males made longer forays during the summer months when activity was also at a peak. Overlapping of home ranges was common. Male Aplodontia were in breeding condition throughout January, February, and March. Estrus females were available by about mid- February. Lactating females were observed from 8 April through 27 May. Young Aplodontia are weaned at 6-8 weeks of age and emerge from their burrows the following 2 weeks. The earliest date of capture of a young in the field was 3 June. The growth curve of the young was characterized by a rapid increase during the first 8 weeks, followed by a gradual decline, and eventually reached a plateau in 4 months at 69 percent of the adult weight. Animals were classed as juveniles, yearlings, or adults based on their body weights, character of pelage, and breeding condition. Aging of mountain beavers on the basis of weight alone was considered impossible due to the wide range of size within each age class. The average yearling weighed about 710 g, or 88 percent of the adult mean weight of 806 g. Adult males were consistently heavier than females. The largest male weighed 1130 g; the largest female weighed 1070 g. The body weights of adult Aplodontia were at a seasonal low during their reproductive period in the spring and at a high in mid-summer when food was most abundant. Attempts to breed Aplodontia in captivity were unsuccessful due primarily to the hostile behavior of the females.
Book Synopsis Point Arena Mountain Beaver (Aplodontia Rufa Nigra (Rafinesque)) Recovery Plan by : Dale T. Steele
Download or read book Point Arena Mountain Beaver (Aplodontia Rufa Nigra (Rafinesque)) Recovery Plan written by Dale T. Steele and published by . This book was released on 1998 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Mountain Beaver in Oregon by : Edward Frank Hooven
Download or read book The Mountain Beaver in Oregon written by Edward Frank Hooven and published by . This book was released on 1977 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mountain Beavers in the Pacific Northwest by : Theo. H. Scheffer
Download or read book Mountain Beavers in the Pacific Northwest written by Theo. H. Scheffer and published by . This book was released on 1929 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wildlife Abstracts by : U.S. Fish and Wildlife Service
Download or read book Wildlife Abstracts written by U.S. Fish and Wildlife Service and published by . This book was released on 1954 with total page 1020 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Forest Environment Pesticide Study Manual by : Donald P. Hanley
Download or read book Forest Environment Pesticide Study Manual written by Donald P. Hanley and published by . This book was released on 1996 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis California Wildlife and Their Habitats by :
Download or read book California Wildlife and Their Habitats written by and published by . This book was released on 1980 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Relationships between wildlife and their habitats are examined in a series of matrixes, species narratives, and distribution maps.
Book Synopsis USDA Forest Service General Technical Report PSW. by :
Download or read book USDA Forest Service General Technical Report PSW. written by and published by . This book was released on 1980 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book General Technical Report PSW. written by and published by . This book was released on 1978 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis General Technical Report PNW-GTR by :
Download or read book General Technical Report PNW-GTR written by and published by . This book was released on 1992 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Woodcock Status Report, 1963 written by and published by . This book was released on 1963 with total page 1182 pages. Available in PDF, EPUB and Kindle. Book excerpt: An index of woodcock reproductive success in 1961 and 1962 was obtained from age ratios in the hunting kill as determined from wings. For both seasons combined, hunters contributed 25,426 woodcock wings.
Book Synopsis Special Scientific Report--wildlife by :
Download or read book Special Scientific Report--wildlife written by and published by . This book was released on 1963 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Waterfowl Status Report, 1963 written by and published by . This book was released on 1963 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: