Thesis (M.S.)--University of Wisconsin--Madison. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

A random sample of forty high altitude block vertical aerial photographs was drawn from two extensive districts of the south Cariboo region of British Columbia. The five hundred square miles of sample area so obtained was cover-typed through interpretation of the aerial photographs. Both mature and seral forest stages constituting moose habitat were identified primarily through the use of criteria which permitted the recognition of individual tree species and secondarily through the recognition of characteristics peculiar to the aspect of each forest type when viewed as a unit. Stereoscoptic examination permitted delimination of the types on the aerial photographs. Planimetric measurement of these areas followed. Sub—sampling of these areas resulted in the establishment of sixty—four permanent plots. Twelve thousand feet of line-interception transect data were obtained from the plots. Browse species were classified both for amount of available food and for degree of utilization by moose. Availability was largely determined by standards derived from shrub height and D.B.H., while utilization was categorized into four degrees on the basis of the amounts or the previous years twigs that had been removed from the shrub by the browsing of moose. Analysis of the ground shrub and tree layers resulted in distinctive floral compositions being obtained for seven forest types which constitute moose habitat. Characteristic intensities of browse utilization were also evident in each forest type—the more dense, mature forests receiving heavier usage than the open forest stands. Index ratings were established both for the density of available browse and for the degree or utilization of browse in each of the seven forest types, Application of these indices to the areas of each forest type indicated relative food productivity and usage of browse in the two sample districts. With the establishment of the indices, moose ranges in the remainder of the sample district may be assessed solely from aerial photographs thereby eliminating extensive ground survey, Extension of this method to other forest areas will permit similar assessment of moose habitat in these regions, once any new forest types are identified and valuated through limited ground subsampling. Severe browsing of unpalatable species, not generally consumed, indicated overuse of many moose winter ranges. Controlled burning of certain severely overbrowsed ranges and further reductions in the moose population through either-sex seasons are suggested. / Science, Faculty of / Zoology, Department of / Graduate

A study of the history, numbers, distribution, utilization, habitat, and economic importance of moose in Manitoba north of the 53rd parallel, was commenced in the spring of 1951 and continued for three of the following four years. In the past 200 years moose have advanced their range from the 55th parallel and 97th meridian to the northern and eastern limits of the boreal forest. The advance is considered to have been part of a "normal" post-glacial movement accelerated by the concurrent extension of range of the Cree Indians which increased the number of fire-produced openings in the forest. Limited aerial censuses and ground counts by trappers showed few areas with more than 1 moose per square mile, but a number of isolated blocks with up to 1 moose per five square miles. Adult sex ratios approached 1:1 in most areas where both sexes were hunted. Calf:cow ratios approached 1:1 in the trappers' censuses and .5:1 in the aerial censuses. It is believed that the true ratio probably lies near .75:1. Utilization by man varied between 6 percent and 20 percent of the reported populations in the Indian sections and between 2 percent and 12 percent in other areas. In most areas the human kill was not excessive but was poorly distributed in time and space, and took too many calves. Wolf predation has probably been a limiting factor in the recent past but a government poisoning program has now eliminated the significance of this factor. Accidental death through drowning takes a fairly large annual toll. Parasitism, and disease are not considered significant. Good habitat is mainly dependent upon fire-produced openings in the coniferous forests and study of the practicability of controlled burning and clear-cutting is suggested. A major limiting factor for moose is believed to be lack of variety of browse species. The economic value of moose is placed at $384,000 annually, divided between Indians and non-Indians in the proportion of 3.8:1. Suggestions for the management of moose in remote and accessible areas are given. / Science, Faculty of / Zoology, Department of / Graduate

The pro-Vitamin A and Vitamin C contents of the nine main species of moose browse have been surveyed. Three species of conifers have also been surveyed. Four feeding areas of the moose, chosen to represent a series of stages in the development of a forest from its youngest to its climax stage, have been studied and compared as a source of carotene and ascorbic acid. A burned over area whose present forest approximates twenty years was found to have the highest content. A seasonal variation in vitamin content has been established. The deciduous species have a summer maximum and a winter minimum. The conifers have a winter maximum and a summer minimum. A comparison of palatability rating and vitamin content of individual species is discussed. During freezing and cold storage the loss of carotene and Vitamin C was found to be very slight. / Science, Faculty of / Zoology, Department of / Graduate

Thesis (M.S.)--University of Wyoming, 2008. / Title from PDF title page (viewed on Dec. 4, 2009). Includes bibliographical references (p. 154-163).

Thesis (Ph. D.)--University of Wisconsin--Madison, 1958. / Typescript. Abstracted in Dissertation abstracts, v. 19 (1959) no. 12, p. 3075-3076. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

Thesis (M.S.)--University of Wyoming, 2008. / Title from PDF title page (viewed on Nov. 19, 2009). Includes bibliographical references.

Thesis (M.S.)--University of Wisconsin--Madison, 1980. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

Thesis (M.S.) in Ecology and Environmental Science--University of Maine, 2006. / Includes vita. Includes bibliographical references (leaves 96-106).

Thesis (M. Sc.), Memorial University of Newfoundland, 1998. / Restricted until June 1999. Bibliography: leaves 67-76.