Life Sciences Commons^™

Forest Canopies: Form And Functional Relationships, Steven B. Jack

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Forest canopy structure is strongly influenced by stand density due to changing competitive interactions among the individual trees and in turn directly influences stemwood volume production. The structure and dynamics of forest canopies, particularly in relation to the production of stemwood, were examined in unmanaged, even-aged stands of two dissimilar tree species, Pinus contorta var. latifolia Engelm. and Abies lasiocarpa (Hook.) Nutt. The analysis of structure-production relationships was guided by a conceptual model which generated hypotheses and led to examination of assumptions incorporated in the model.

Mean crown dimensions were related to stand density through a negative exponential function for …

Visitor Characteristics And Attitudes Toward Policies In The Irish Wilderness Of Southern Missouri, Debra Lynn Bumpus

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Questionnaires which assessed attitudes toward wilderness policies and behavioral norms were distributed to individuals at the Irish Wilderness, in the surrounding communities, and to conservation groups. Questions were designed to describe general wilderness policies and also those policies specific to the Irish Wilderness. The Irish Wilderness, located in southeastern Missouri, was designated as a national wilderness area in 1984. Prior to this 1986 study, no previous studies had been conducted in the area to describe visitor characteristics and attitudes toward wilderness management policies. A comparison was also made between the attitudes of the Irish Wilderness visitor and of Pacific Northwest …