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Relationship Of Macrophyte Detritus To The Salt Marsh Periwinkle, Littorina Irrorata Say., Steve Kenneth Alexander

LSU Historical Dissertations and Theses

No abstract provided.

Physioecological Studies Of Louisiana Callianassidae (Crustacea, Decapoda, Thalassinidea)., Darryl Lambert Felder

LSU Historical Dissertations and Theses

No abstract provided.

Winter Plant - Water Relations With Special Reference To Alpine Treeline, Peter J. Marchand

Doctoral Dissertations

No abstract provided.

Studies On The Ecology Of Psammonyx Nobilis (Stimpson), 1853 (Crustacea: Amphipoda) I Life History And General Ecology Ii Associated Community Structure, Kenneth John Scott

Doctoral Dissertations

No abstract provided.

Theoretical Aspects Of Vegetational Change: Historical Effects In Ecological Succession, Hulst Robert Van

Digitized Theses

No abstract provided.

A Taxonomic And Ecologic Study Of The Riverbottom Forest On St. Mary River, Lee Creek And Belly River In Southwest Alberta, Canada, Robert Keith Shaw

Theses and Dissertations

The riverbottom forest community of St. Mary River, Lee Creek and Belly River in southwest Alberta, Canada is a unique ecological entity characterized by poplar species having their major Alberta distribution along these streams. Stands in the community are dominated by three tree species, six shrub species and nine herb species. Establishment of the community is dependent on climate and substrate; destruction is the result of progressive lateral stream-flow erosion. Soils are sandy loams above gravel, with pH values of 7.7 to 8.0 and soluble salt concentration of 176 to 458 parts per million. Trees in mature stands averaged 23.0 …

Systems Analysis Of Ecosystem Stability., Anand Janardan Apte

LSU Historical Dissertations and Theses

No abstract provided.

The Impact Of Chromium Accumulation In An Estuarine Environment, Judith Mcdowell Capuzzo

Doctoral Dissertations

No abstract provided.

Foraging Strategies And Predation Effects Of Asterias Rubens And Nucella Lapillus, John Henry Annala

Doctoral Dissertations

No abstract provided.

An Autecological Study Of Blackbrush (Coleogyne Ramosissima Torr.) In Southwestern Utah, James E. Bowns

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to provide basic ecological information on an important but little studied major vegetation type through autecological investigations of the dominant species. Data include climate and soils where this species occurs, root distribution, phenology and growth, seed germination requirements and seedling survival. Percent ground cover provided by blackbrush and other dominant plants as well as the composition of herbaceous understory vegetation was presented. Leaf and stem anatomy of blackbrush revealed features typical of desert shrub species with stem splitting appearing to be a characteristic of this species.

Blackbrush is characterized as a poor forage species …

Ethics, Ecology, And Economic Growth,, Patricia Marie Nesbitt

Graduate Theses and Dissertations

No abstract provided.

Seasonal Biomass, Abundance, And Distribution Of Estuarine Dependent Fishes In The Caminada Bay System Of Louisiana., Paul Robert Wagner

LSU Historical Dissertations and Theses

No abstract provided.

Utilization Of Louisiana Estuarine Sediments As A Source Of Nutrition For The Brown Shrimp Penaeus Aztecus., Ralph Russell Jones Jr

LSU Historical Dissertations and Theses

No abstract provided.

Population Dynamics Of Two Weedy Perennials, Plantago Major (L) And Plantago Rugelii (Decne), Wayne Rothan Hawthorn

Digitized Theses

No abstract provided.

Ecology Of Aroga Websteri Clarke In Curlew Valley, Utah-Idaho, Reed L. Kirkland

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The ecology, life history, and population dynamics of the sagebrush defoliator, Aroga websteri Clarke, were studied in the field and laboratory. The defoliator has one generation a year at the Curlew Valley site. It overwintered in the egg stage and passed through five larval instars. Ten parasite species attacked the defoliator at the study site. Four species, Orgilus ferus, Phaeogenes sp., Spilochalcis leptis, and Apanteles cacoeciae, contributed over 75 percent of the total incidence of parasitism. Parasitism ranged from 20 to 76 percent in 1971, but only ranged from 6 to 29 percent in 1972. This decrease …

Blue Grouse Ecology And Habitat Requirements In North Central Utah, David A. Weber

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The ecology and habitat requirements of a population of blue grouse were studied during 1970 and 1971 on the Cache National Forest 25 miles south of Logan, Utah.

Baseline data concerning numbers of blue grouse, vegetative composition, and insect abundance on the study area were gathered. These data were to be compared to similar measurements made following a herbicidal spraying of the area during 1972.

Information concerning the breeding, nesting, brood rearing, and wintering habits of the grouse was also collected. Male blue grouse migrated to the study area in early April to set up territories. These were located on …

Population Ecology Of Uinta Ground Squirrels, Norman A. Slade

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The behavior and ecology of Uinta ground squirrels (Spermophilus armatus) at the Utah State University Forestry Field Station northeast of Logan, Utah were studied from 1964-1971 to determine the role of behavior in population regulation. From 1965 to 1968, data were collected to establish population norms. In 1968, the population density was reduced experimentally to help elucidate regulatory processes. This paper compares the dynamics of the population before and after the population reduction.

Before the density reduction, juvenile survival was lower than that of yearlings and adults. The disappearance of juveniles was associated with their tendency to disperse …

The Salt Marsh Amphipod Gammarus Palustris, Bousfield, 1969, At The Northern Limit Of Its Distribution: I Ecology Ii Temperature-Salinity Tolerance, Michael F. Gable

Doctoral Dissertations

No abstract provided.

A Comparative Study Of The Use Of Habitat By Arctic Loons And Red-Throated Loons, Rolph Aubrey Davis

Digitized Theses

No abstract provided.

The Riparian Vegetation Of Swauk Creek, Edward L. Schneider

All Master's Theses

An investigation was made to document the structure and composition of the flora along Swauk Creek, a riparian transect into Central Washington's Cascade Range. Distributions of the major species are discussed and a key has been constructed to facilitate identification of the riparian associations.

A Comparative Investigation Of Understanding Of Ecological Content Between Eighth And Tenth Grade Pupils, David Lee Herbenson

All Master's Theses

The study had two major purposes. One purpose was to determine if Covington Junior High School eighth grade pupils understood the basic ecological ideas and facts presented to them in a teacher-designed one semester course entitled Environmental Concepts Orientation (ECO). The second purpose was to find out the degree of competence attained by the eighth grade pupils as compared to tenth grade pupils taking a one year ecologically oriented course in the nationally developed Green Version BSCS biology series at Camas, Washington.

Ecology Of Badgers In Curlew Valley, Utah And Idaho With Emphasis On Movement And Activity Patterns, Frederick G. Lindzey

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Between March, 1969 and July, 1970, 16 badgers (Taxidea taxus) were caught and fitted with radio transmitters in the southern part of Curlew Valley. The animals were followed telemetrically; seven animals contributed sufficient data from which home-range, movement and activity patterns could be discerned. The aver age annual home-range size of five females was 664 acres (± s.d. 99 .5 acres). Female home-range sizes were approximately the same within crested wheat-grass (Agropyron aristatum) and sagebrush (Artemisia tridentata) vegetation types, with greater distances traveled each night by females in the crested wheat-grass. Both home-range size and total movement were less …

The Microclimate, Ion And Water Balance Of Larval And Adult Ascaphus Truei Stejneger, Terry L. Mullen

All Master's Theses

The purpose of this paper is first to describe the microclimate occupied by larval and adult Ascaphus. This microclimate presents certain osmo- and iono- regulatory problems. The second purpose of this paper is to show how Ascaphus meets these osmo- and iono- regulatory problems.

Biogeography Of The Blue Crab Fishery, Barataria Estuary, Louisiana., Eugene Jaworski

LSU Historical Dissertations and Theses

No abstract provided.

Use Of Natural, And Semi-Impounded, Louisiana Tidal Marshes As Nurseries For Fishes And Crustaceans., William H. Herke

LSU Historical Dissertations and Theses

No abstract provided.

Some Ecological Effects Of Artificial Circulation On A Small Eutrophic New Hampshire Lake, Robert Chester Haynes

Doctoral Dissertations

No abstract provided.

A Theology Of Ecology And Its Relation To The Pesticidal Exploitation Of The Environment, Norbert Firnhaber

Bachelor of Divinity

The purpose of this paper, then, is to make an attempt to review the stance toward the environment in both biblical and church history, formulate a skeletal theology of ecology, and examine man’s responsibility toward nature with particular focus on the use of pesticides in the environment.

the scope of this paper is limited to the study of the threat of an unbalanced ecology and its resulting theological implications for the church. The methodology consists of extensive use of bibliography, personal correspondence, government monographs, and several unpublished articles. All of these are contained in the bibliography.

An Annotated Check List Of The Land Mammals Of Curry County, Oregon, Paul Emerson Sherrell

All Master's Theses

Curry County merits study for several reasons. Very little work has been done on its mammalian fauna resulting in a limited number of specimens. In turn there is a sparsity of literature; that written is chiefly concerned with the genera Arborimus and Phenacomys. The location of the county places it in an area of scrambled geological history resulting in a diverse mixture of faunal and floral elements. Logging, agriculture, and grazing activities have altered and continue to alter the natural habitats. These interests have permanently changed both the floristic and faunistic composition of the county.

The aims of this study …

Subalpine Cover Ecology Of Eutamias Amoenus, Eutamias Townsendii And Other Small Mammals In Huckleberry Park, Mount Rainier National Park, Don H. Meredith

All Master's Theses

Little work has been done on the ecology of alpine and subalpine small mammals. They are included in faunal surveys, but little is known of their habits. In the summer of 1969 this study was undertaken in subalpine Huckleberry Park, Mount Rainier National Park, to determine the species of small mammals in the area and some of their relationships with the environment and each other. The relationships between E. amoenus and E. townsendii were of special interest.

Ecological Studies Of Native Green River Fishes Below Flaming Gorge Dam, 1964-1966, Charles David Vanicek

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Investigations to study (1) the species composition and distribution of Green River fishes between Flaming Gorge Dam and Ouray, Utah and (2) the ecology and life history of selected native species (Colorado squafish, Ptychocheilus lucius; Colorad chub, Gila robusta; bluehead sucker, Pantosteus delphinus; and humpback sucker, Xyrauchen texanus) in Dinosaur National Monument were conducted from May, 1964, to October, 1966. A total of 23,735 fish consisting of 9 indigenous and 11 exotic species, were taken in 639 collections by electrofishing gear, gill nets, seines, and fry gear. Flaming Gorge Dam has caused a major change in …