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Effects Of Clear-Cutting On Nutrient Losses In Aspen Forests On Three Soil Types In Michigan, Curtis J. Richardson, Jeffrey A. Lund

Aspen Bibliography

The effects of clear-cutting on NO^-₃, NH⁺₄, PO^3-₄, K⁺, Ca²⁺, Na⁺, Fe²⁺, and Mg²⁺ losses were evaluated in three 60-year-old aspen stands in northern lower Michigan.

Odum's Ecosystem Attributes: Testing An Hypothesis, James A. Macmahon

Aspen Bibliography

No abstract provided.

Fishes Of The Fourche River In Northcentral Arkansas, Steve M. Bounds, John K. Beadles

Journal of the Arkansas Academy of Science

A survey of the fishes of Fourche River in northcentral Arkansas was made between June 1974 and March 1976. Field collections and literature records revealed that the river system was inhabited by 94 species of fish representing 21 families. The collected fishes represent both the Ozark and the lowland faunal groups. Fourteen species of Etheostoma and four species of Percina were collected. The records of Etheostoma asprigene and Elassoma zonatum represent extensions of the previously known ranges of these species within the state. Noturus gyrinus and Etheostoma histrio were recorded from the Black River system in Arkansas for the first …

Checklist Of The Coccinellidae Of Arkansas, E. Phil Rouse, Joan B. Chapin

Journal of the Arkansas Academy of Science

A checklist of 49 species of Coccinellidae in Arkansas is updated by the inclusion of species from the reference collection of the University of Arkansas and the collection in the Louisiana State University. This list extends the range of eight species. Distribution, ecological data if known, and references for their identification are included.

Preliminary Checklist Of Arkansas Acrasieae, Ron Rosen

Journal of the Arkansas Academy of Science

No abstract provided.

Emus On The Move : 1976, Michael T. Sexton

Journal of the Department of Agriculture, Western Australia, Series 4

The greatest migration of emus in recent times came out of the ZMurchison and Gascoyne pastoral areas during the winter of 1976. The emus were driven south-westerly by an instinctive search for food.

The Agriculture Protection Board's barrier fences stoped the wave of emus on the fringes of the wheatbelt, causing a congregation estimated in mid June to total 50,000 birds.

This article reviews the reason behind the emu migration and the policies employed to deal with such a situation.

Bounty Systems In Vermin Control, S J O Whitehouse

Journal of the Department of Agriculture, Western Australia, Series 4

For more than 3000 years man has tried to reduce the numbers of pest animals by payment of bounties. In general, the system has failed.

This article, by a research scientist who specalizes in the study of declared (pest) animals in Western Australia reviews some of the literature about bounties and comments on the situation in Australia.

Fishes Of The Cane Creek Watershed In Southeast Missouri And Northeast Arkansas, Bruce E. Yeager, John K. Beadles

Journal of the Arkansas Academy of Science

A survey of the fishes of Cane Creek in southeast Missouri and northeast Arkansas was made between 25 August 1974 and 16 July 1975. Field collections, literature records, fisherman reports, and museum specimens showed the fishes of Cane Creek to be composed of 90 species distributed among 20 families. Records of Lampetra aepyptera (Abbott), Hiodon alosoides (Rafinesque), Etheostoma histrio Jordan and Gilbert, and Percina uranidea (Jordan and Gilbert) were either the first records of these species in this stream or reaffirmed their presence. The fish collected were common to the Ozark, Ozark lowland, lowland, and wide-ranging faunal groups of Pflieger …

Cave Fauna Of Arkansas: Selected Invertebrate Taxa, V. Rick Mcdaniel, Kenneth L. Smith

Journal of the Arkansas Academy of Science

This report is the first in a series of reports describing the fauna of Arkansas caves. Included are notes accumulated during the past four years on nematomorphs, amphipods, isopods, diplopods, decapods, and a variety of insect taxa. In addition to indicated records of distribution, the ecological status of each species (as a cavernicole) is described as troglobitic, troglophilic, trogloxenic, or accidental. Several of the included species are reported for the first time from Arkansas.

Population Dynamics Of Microtus Ochrogaster In Eastern Kansas, Michael S. Gaines, Robert K. Rose

Biological Sciences Faculty Publications

Four eastern Kansas populations of the prairie vole, Microtus ochrogaster were live trapped from 1970—73 to gain insight into the population regulation of this species. All four populations exhibited a 2—yr cycle in numbers with peak densities generally occurring in June 1972. Peak densities were followed by a decline in numbers, a recovery, and a population crash in spring 1973. Reproductive parameters changed dramatically as density rose and fell. The summer breeding season in the crash year of 1973 was shortened by at least 3 mo. A reduction in breeding activity occurred during the summer of every year of the …

Anatomical Observations On Floating Leaves, Robert B. Kaul

School of Biological Sciences: Faculty Publications

An examination of 24 genera of aquatic plants having floating leaves and leaf-like thalli has been made. Functional stomata occur on the adaxial sides of floating leaves of angiosperms and some ferns, and in some floating leaves there are stomata on the abaxial surface as well. Most floating leaves have prominently chambered mesophyll, and in some instances the chambers are locally enlarged and form buoys.

Biological Inventory Of The Southern Nevada Water Project, Second Stage, W. Glen Bradley, J. Scott Miller

Publications (WR)

The present report is a biological inventory of the Southern Nevada Water Project, Second Stage. The boundaries of the project encompass sections of North Las Vegas, Las Vegas, East Las Vegas and areas along Las Vegas Wash extending to its drainage point in Las Vegas Bay in Lake Mead. Therefore, it encompasses a wide array of ecological situations and landscapes ranging from essentially natural to various stages of urban development.

This biological inventory presents basic ecological classifications, descriptions of vegetation, lists of vascular plants and vertebrates known to occur in the area. Each major group, i.e., plants, fish, amphibians, reptiles, …

The Effect Of Social Rank Of Male Swordtails (Xiphophorus Helleri) On Sexual Behavior, Janet N. Marum

Masters Theses

The relationship between social rank and sexual behavior of the male swordtail (Xiphophorus helleri) was studied. Initially three tanks were established with three males and two females in each. Social rank, aggressive and sexual levels were recorded by observation of the interactions which occurred in the tanks. A second series of observations were made with the fish regrouped according to their initial rank, that is, dominant males grouped together, middle ranking males together and the lowest ranking males together. Aggressive and sexual levels were the highest for the highest ranking males in all tanks and in both trials, …

An Ecological Study Of The Algal Potamoplankton Communities Upstream And Downstream From A Sanitary Landfill On Riley Creek, Coles County, Illinois, Larry W. Coutant

Masters Theses

No abstract provided.

An Attempt To Find Auditory Communication In The Squirrel Monkey Via Cooperative Conditioning, Michael T. Bardo

Masters Theses

No abstract provided.

Mammals Of The Bull Run, Edward M. Thatcher

Dissertations and Theses

This study of mammals of the Bull Run Planning Unit has a dual character. First, mammals of special scientific or natural history interest such as threatened or endangered species were sought. This was in conjunction with a Mt. Hood Bull Run Planning Unit. Second, a zoogeographical study of mammals of the Bull Run was performed. Abundance and distributional data was recorded for each species observed. This data was related to availability to moisture as indicated by plant associations trapped. Difference in habitat utilization along a moisture gradient was investigated as a possible coexistence mechanism for sympatric small mammals in the …

The Prairie Naturalist Vol. 7, No.4. December 1975

The Prairie Naturalist

COMPARISON OF FLOWERING RECORDS FROM KANSAS AND NORTH DAKOTA ▪ O. A. Stevens

REPAIRED BONE BREAK IN A HOUSE SPARROW ▪ C. L. Cink and T. K. Broschat

A LARGE RACOON LITTER ▪ E. K. Fritzell and J. W. Matthews

CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA –1975 ▪ R. N. Randall

BOOK REVIEW

Autumn Hawk Migrations ▪ P. B. Hofslund

A Chronological Comparison Of The Vegetation Of Vigo County, Indiana Presettlement (1814) Versus Contemporary (1974), Ellen Oliver Donselman

All-Inclusive List of Electronic Theses and Dissertations

A study of the vegetation of Vigo County was undertaken to categorize and map presettlement and contemporary vegetation patterns, and to relate these patterns to climate, topography, soil types and land-use changes. Vigo County was divided into four major topographic units according to geography and soil types. Ttese units served as the basis for this study. The General Land Office Survey of 1814 provided data for the presettlement forest distribution. Sixteen contemporary stands were sampled to obtain data for characterization of present-day vegetation patterns. Standattributes tables and size-class tables were constructed for four contemporary and four presettlement forest units. A …

Seasonal Distribution Of Higher Marine And Aquatic Fungi In The Back Bay National Wildlife Refuge, Scott Schatz

Biological Sciences Theses & Dissertations

Abstract unavailable.

The Prairie Naturalist Vol. 7 , Nos. 2 And 3. June-September, 1975

The Prairie Naturalist

VASCULAR FLORA OF EMMONS COUNTY, NORTH DAKOTA ▪ R. P Williams and W. T. Barker

NOTES

Unusual Nesting Site of Barn Swallows ▪ W. A. Buresh

Summer Tanager in Burleigh County, North Dakota ▪ W. A. Buresh

Additional Record of Summer Tanager in North Dakota ▪ J. F. Cassel

Snowy Owl in McHenry County, North Dakota, in May ▪ W. A. Buresh

Forestry Report, P. Sims, G. Steneker, K. Fronting, C. Kirby, P. Van Eck, H. Johnson, N. Walker, R. Bohning, L. Carlson, I. Bella, W. Johnstone, R. Waldron, L. Brace

Aspen Bibliography

No abstract provided.

Effect Of Salinity On Glycogen Content In The Brine Shrimp, Artemia Salinas, Of Great Salt Lake, Christon H. Merkley

Undergraduate Honors Capstone Projects

The brine shrimp, Artemia salinas, is one of the few organisms to be found in the hostile environment of the Great Salt Lake. Salt concentrations in the lake are found to exceed those in the oceans. In such an environment, the utilization of energy, even after it has been procured, presents a problem. The life inhabiting the lake has developed extraordinary adaptations to this and similar problems.

Electron micrographs produced by Dr. Nabil Youssef of Utah State University have revealed that unusual quantities of glycogen can be found in the muscle of brine shrimp taken from the Great Salt Lake. …

Notes On The Natural History Of Plecotus Rafinesquii, Clyde Jones, Royal D. Suttkus

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.

A New Species Of Eptesicus From Guadeloupe, Lesser Antilles (Chiroptera: Vespertilionidae), Hugh H. Genoways, Robert J. Baker

University of Nebraska State Museum: Mammalogy Papers

In the course of field studies on bats of the Antillean region, three specimens of the genus Eptesicus were obtained on the island of Guadeloupe in the Lesser Antilles. The nearest known populations of this genus are on Puerto Rico 500 kilometers to the west (E. fuscus wetmorei), on the northern coast of South America 850 kilometers to the southwest (E. fuscus miradorensis), and on Tobago 550 kilometers to the south (E. brasiliensis melanopterus). Study of the specimens from Guadeloupe reveals that they represent a distinct species that is most closely related to Eptesicus …

A Paleocene Flora From The Fort Union Formation Near Baggs, Carbon County, Wyoming, John L. Roth

Theses and Dissertations

A well-preserved Paleocene flora of 39 species from the Fort Union Formation near Baggs, Carbon County, Wyoming has been studied. This is the first study of the plant megafossils in this area. The most abundant species collected are: Carya antiquorum Platanus nobilis, Cercidiphyllum arcticum and Platanus raynoldsi. Together they represent 74% of the flora. The flora has been dated as Upper Middle Torrejonian. This report is also the first paleoecological study of any North American Paleocene flora. Two methods were used to determine the paleoclimatic conditions of the flora. The first was an analysis of leaf margin characteristics, comparing them …

Microbenthic Algal Production Of An Intertidal Sandflat In Little Creek Harbor, Virginia Beach, Virginia, Clayton Barry Shedrow

OES Theses and Dissertations

Estimated annual net microbenthic algal production of an intertidal sandflat on Little Creek Inlet, Virginia Beach, Virginia, was 105 g C/m². Seasonally, primary production was greatest during the summer and fall periods (38 and 49 g C/m², respectively). Productivity was found to vary directly with water temperature and standing crop of benthic diatoms, and inversely with incident solar radiation and standing crops of sedimentary chlorophyll 'a' and 'c'. Orthophosphate and nitrate-N appeared to be limiting factors, nitrate-N more so than orthophosphate. Mean annual net photosynthetic efficiency (based upon total light) for the microphytobenthic community was 0.09%. …

Genetic Studies Of Cave And Spring Populations Of The Freshwater Amphipod Crustacean Gammarus Minus Say, Steven Wolf Hetrick

Biological Sciences Theses & Dissertations

The amphipod Gammaru. minus has three morphotypes in its Appalachian range : (1) a spring form with well-developed eyes, (2) an intermediate cave form with slightly reduced eyes, and (3) an extreme cave form with greatly reduced eyes. This study compares the genetic structure of populations in two karst areas and analyzes the genetics of populations of the three morphotypes.

Genetic data were collected from populations in the Ward's Cove, Virginia and Greenbrier Valley, West Virginia karst areas using zone electrophoresis zymograms. One hundred percent of the Ward's Cove populations are polymorphic at both MDH-1 and PEP 1 loci …

The Distribution Of The Deer Mouse, Peromyscus Maniculatus, On The Oregon Side Of The Columbia River Gorge, Ronald P. Neilson

Dissertations and Theses

A study of the biogeography of Peromyscus maniculatus was undertaken in order to ascertain a few of the environmental parameters important in defining the distribution of this species and how the species in turn has adapted to these parameters. The Columbia Gorge was chosen as it presents a climatic gradient from maritime to continental with very little elevation gain. Changes along this gradient in topography, soils and vegetation community structure are discussed.

Seasonal And Spatial Variation In Primary Productivity In Boulder Basin, Lake Mead, Clark County, Nevada, Isamu Aoki

Publications (WR)

The ¹⁴C light and dark bottle technique for measurement of primary production was utilized as a means of assessing the amount of inorganic carbon being converted Into organic form by the photosynthesis of phytoplankton populations In the Boulder Basin of Lake Mead.

Spatial and time series changes of productivity levels observed at eight sampling locations within Boulder Basin Indicate that the Influence of treated municipal arts' industrial effluent flowing into Les Vegas Bay is contributing high levels of available nutrients at Las Vegas Wash Inlet to cause productivity to approximate those levels associated with polluted waters.

Productivity levels at …

Factors Influencing Germination And Seedling Survival Of Several Varieties Of Astragalus Lentiginosus Dougl., Paul Ziemkiewicz

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Astragalus lentiginosus, which consists of 36 varieties, is one of the principal locoweeds of western North America. The objectives of this study included identification of some of the major factors affecting germination of the seed and survival of the newly established seedlings for several of these varieties.

The seeds of the varieties studied exhibited two mechanisms for dormancy. One is a seed coat that is impermeable to water, and the other is a water-leachable inhibitor. The presence or absence of low-intensity incandescent light (in 14-hour day lengths) had no effect on germination. Of three temperature regimes studied, the regime …