Simultaneous visual and oceanographic surveys were conducted in the lower Bay of Fundy and in Roseway Basin of the SW Scotian Shelf during the summers of 1999 to 2001 to investigate the physical and biological oceanographic factors associated with North Atlantic right whale occurrence. Sightings of right whales were recorded...
North Atlantic right whales (Eubalaena glacialis) were found in an important nineteenth century whaling area east of southern Greenland, from which they were once thought to have been extirpated. In 2007–2008, a 1-year passive acoustic survey was conducted at five sites in and near the ‘Cape Farewell Ground’, the former...
To increase our understanding of the timber harvesting behavior of family forest owners, I developed theoretical and empirical timber harvesting models for family forest owners in the southeastern United States. An individual-choice model was the basis for the models. Family forest owners were modeled as utility-maximizers who made harvesting decisions...
In order to synthesize polyethylene by the microreactor with a catalyst, this thesis prepares the chemical coating layers for the reactor channel. There are two layers in the channel: the Phillips catalysts and an antimony-doped tin oxide layer on glass substrate. The Phillips catalyst help to synthesize polyethylene in the...
Regression equations applicable to biomass components of standsof western hemlock [Tsuga heterophylla (Raf.) Sarg.} were developedby destructive sampling of a thinned and an unthinned stand ofwestern hemlock near Seaside, Oregon. Equations predicted more live-branchbiomass and less dead-branch biomass per tree for the thinnedstand, but equations for biomass of foliage, twigs,...
I developed a conceptual model of Douglas-fir bark beetle dynamics and associated host mortality across spatial and temporal scales. I proposed that a hierarchy of factors influence host resistance to attack at different spatial scales. I then tested this model by measuring the association between the occurrence of beetle-kill and...
Shrub-steppe ecosystems of western North America provide habitat for many wildlife species, are important components of public and private rangelands, and offer recreational opportunities for millions of people. They are some of the most vulnerable ecosystems in the United States and have been altered by human activities such as livestock...
Eighty-seven brachiopod species are described and illustrated from a brachiopod fauna of the Cape Phillips Formation of Baillie Hamilton Island, Arctic Canada. Two new
families, Wangyuiidae and Rhynchotretidae, are proposed. Six new genera and forty-five
new species are recognized. New genera comprise: Flabellitesia, Wangyuia,
Pseudomendacella, Eoplectodonta (Paranisopleurella), Johnsonatrypa, and
Dicoelospirifer....
The objective of this study was to determine the internal consistency
rating for the Film Test for Understanding Behavior (FUB)
and the three subscales within the test. An estimation formula which
contrasts sums of squares generated from an analysis of variance
was used to compute the internal consistency reliability coefficients...
Adolescent pregnancy is a serious problem which creates social and
emotional consequences for 1 in 10 teenaged girls and their families.
Although the severity of the problem has been well documented in the
literature, few empirical investigations have been conducted to expand
information or to aid in the understanding of...
