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Endangered And Threatened Fishes Of The West, James E. Deacon

Great Basin Naturalist Memoirs

The endangered and threatened fish fauna of the United States exhibits problems resulting primarily from habitat modification by man. The evolutionary history of the fauna has left it especially sensitive to biotic interactions. In addition, many forms are of such restricted distribution that the entire taxon can be destroyed by very minor perturbations. The effects of habitat modification on woundfin and roundtail chub in the Virgin River of Utah, Arizona, and Nevada are discussed. Parasitism by Lernea on White River springfish is shown to coincide with population decline in some, but not all, cases. Population declines of Pahrump killifish are …

Endangered Species: Costs And Benefits, Edwin P. Pister

Great Basin Naturalist Memoirs

Biologists are often placed in the difficult position of defending a threatened habitat or animal with vague reasoning and faulty logic, simply because they have no better rationale at their immediate disposal. This places them at a distinct disadvantage and literally at the mercy of resource exploiters and their easily assignable dollar values. Although the initial dollar cost of delaying precluding "developing" may be significant, the long-term benefits of saving the biological entities which might otherwise be destroyed are likewise great and are measurable in concrete terms which society is only now beginning to appreciate. Case histories are presented, a …

Depression In Mormon Women -- And Men, And Non-Mormons, Too., Jed L. Ericksen

Issues in Religion and Psychotherapy

No abstract provided.

Amcap Journal Volume 5 Issue 3 1979, Issues In Religion And Psycotherapy

Issues in Religion and Psychotherapy

No abstract provided.

Bringing The Restoration To The Academic World: Clinical Psychology As A Test Case, Allen E. Bergin

BYU Studies

No abstract provided.

Happenstance Or Providence, Or How I Found All My Jobs, Fritz Marti

Swiss American Historical Society Newsletter

A man's life is shaped by decisions often not his own. Even before my conception it was decided what I was to be, and the date of my birth, too, was decisive.

End Matter, Vol. 39 No. 3

Great Basin Naturalist

No abstract provided.

Front Matter, Vol. 39 No. 3

Great Basin Naturalist

No abstract provided.

Potential Use Of Great Salt Lake Water For Lobster Culture, Roger W. Mickelsen, Richard A. Heckmann, Rex C. Infanger

Great Basin Naturalist

Three experiments were conducted to determine if water from the Great Salt Lake altered in chemical composition and dilution can be used successfully to sustain a species of hermit crab Pagarus sp. and the American Lobster (Homarus americanus). Great Salt Lake water altered by freshwater dilution will not sustain the hermit crab or the American lobster. Great Salt Lake water can be altered chemically by dilution to support growth of the American lobster.

American lobsters maintained in Instant Ocean synthetic sea water (control) grow at a more rapid rate than animals sustained in altered Great Salt Lake water. …

Response Of Reptile Populations To Different Land Management Practices On The Idaho National Engineering Laboratory Site, Timothy D. Reynolds

Great Basin Naturalist

Populations of reptiles were examined in grazed and ungrazed habitats dominated by sagebrush (Artemisia tridentata) or by crested wheatgrass (Agropyron cirstatum) on the Idaho National Engineering Laboratory (INEL) Site in southeastern Idaho. The sagebrush lizard (Sceloporus graciosus) and the short-horned lizard (Phrynosoma douglassi) were the only species of reptiles encountered in sufficient numbers to permit statistical analysis. Both of these species preferred sagebrush habitats to areas dominated by crested wheatgrass. The sagebrush lizard was most abundant in the native, ungrazed, sagebrush habitat, and the short-horned lizard was most plentiful in the sheep-grazed …

Vegetative And Edaphic Factors Affecting Abundance And Distribution Of Small Mammals In Southeast Oregon, George A. Feldhamer

Great Basin Naturalist

The relationships between vegetative and edaphic habitat factors and the local distribution and abundance of small mammals on Malheur National Wildlife Refuge, Harney County, Oregon, were examined between July 1973 and June 1975. Of 16 species of small mammals captured, deer mice (Peromyscus maniculatus), montane voles (Microtus montanus), Great Basin pocket mice (Perognathus parvus), and least chipmunks (Eutamias minimus) comprised 90.1 percent of the individuals. The physiognomy of the vegetation was a factor in the distribution of rodent species other than deer mice. Pocket mice and chipmunks were restricted to the communities …

Climates Of Fescue Grasslands Of Mountains In The Western United States, T. Weaver

Great Basin Naturalist

Climates of fescue grasslands were described by summarizing USDC Weather Bureau records of representative sites. Mean temperatures of the warmest month declined from 18 to 14 C, average annual precipitation increased from 40–50 to 170 cm, and the number of arid months in an arbitrarily defined dry year declined from 3 to 1–2 as one moves from Festuca arizonica (14 stations) to F. scabrella (15) to F. idahoensis (17) to F. thurberi (6) to F. viridula (9). Climates of the grasslands are sufficiently like those of the Pseudotsuga menziesii and Abies lasiocarpa zones of the northern Rocky Mountains to make …

Nearctic Stonefly Genera As Indicators Of Ecological Parameters (Plecoptera: Insecta), Richard W. Baumann

Great Basin Naturalist

Selected stonefly genera found in North America are classified as to their occurrence in: cold lotic, warm lotic, or lentic habitats. Most genera occur only in the cold lotic, but several occur both in cold and warm lotic systems. Few are found exclusively in warm lotic habitats and almost none in lentic. Lake or true lentic inhabits are found to usually be cold lotic species which have adapted to life in the wave-washed shores of cold mountain lakes.

Even though data at the specific level would be even more useful, especially where different faunal regions are involved, stoneflies are probably …

Heating-Effect Minimization In Dye Lasers, Kenneth Lee Matheson, James M. Thorne

Faculty Publications

Optical pumping of dye lasers deposits heat nonuniformly in the active medium. Because the refractive index of a liquid or gas is a function of temperature, gradients are created which refract the laser beam. This effect is sometimes serious enough to quench laser action. In this paper, we evaluate the effects caused by optical pumping with a coaxial flashlamp and suggest ultraviolet absorbers and wavelength shifters as materials for minimizing the problem

New Synonymy And New Species Of American Bark Beetles (Coleoptera: Scolytidae), Part Viii, Stephen L. Wood

Great Basin Naturalist

New synonymy of American Scolytidae is proposed as follows: Acacacis, Lea ( = Neodiamerus Schedl), Gnatholeptus panamensis Blackman ( = Pityophthorus epistomalis Schedl), Gnatholeptus shannoni (Blackman) ( = Gnatholeptus mandibularis Blackman, Pityophthorus gentilis Schedl), Gymnochilus reitteri Eichhoff ( = Problechilus striatus Eggers, Problechilus bicolor Eggers), Hylastes scabripennis (Zimmermann) ( = Hylastes salebrosus Eichhoff), Hylurgopinus opaculus (LeConte) ( = Hylastes rufipes Eichhoff), Ips perturbatus (Eichhoff) ( = Tomicus interpunctus Eichhoff), Monarthrum dimidiatum (Ferrari) ( = Pterocyclon moritzi Eichhoff), Pityophthorus subcribratus Schedl ( = Pityophthorus zeteki Blackman), Scolytodes trispinosus Eggers ( = Scolytodes elongatus Schedl), Xyleborus costaricensis Blandford ( = Xyleborus nevermanni …

Bee Visitation Of Phlox Bryoides (Polemoniaceae), V. J. Tepedino

Great Basin Naturalist

Collections of diurnal insects from a population of Phlox bryoides on shortgrass prairie in southeastern Wyoming showed the flowers to be visited predominantly by Synhalonia fulvitarsis, a long-tongued bee. Analysis of pollen loads carried by captured bees revealed that almost all individuals were collecting Phlox pollen. P. bryoides may be an exception to the generalization that the genus Phlox is exclusively pollinated by Lepidoptera.

Front Matter, Vol. 39 No. 2

Great Basin Naturalist

No abstract provided.

Chemical Composition Of Some Important Plants Of Southeastern Utah Summer Ranges Related To Mule Deer Reproduction, Jordan C. Pederson, K. T. Harper

Great Basin Naturalist

Chemical composition of some major forage plants of mountain summer ranges of southeastern Utah is reported. Grasses are shown to contain significantly less nitrogen, phosphorus, potassium, calcium, and magnesium than either forbs or shrubs. Forbs and shrubs are demonstrated to differ significantly only in potassium content; forbs tested contained more potassium than shrubs. The chemical composition of the forage plants is discussed in relation to mule deer reproductive rates. It is concluded that protein and mineral content of the forage of the two ranges considered (the LaSal and Henry mountains) is less likely to affect reproductive rates than is the …

End Matter, Vol. 39 No. 2

Great Basin Naturalist

No abstract provided.

Review Of Tularemia In Utah And The Great Basin, Harold E. Stark

Great Basin Naturalist

This is a compilation of tularemia research conducted in Utah, particularly at U.S. Army Dugway Proving Ground (DPG), Utah, and an evaluation of this information in relation to the current status of tularemia studies. A brief history of tularemia in Utah and a review of field and laboratory studies are included.

Human cases of tularemia occur throughout Utah during all seasons of the year. An analysis of recent human disease reveals a concentration of cases in rural areas, with a greater seasonal occurrence in late summer and early fall.

Vegetation Response To A Moisture Gradient On An Ephemeral Stream In Central Arizona, Deborah Ann Bloss, Jack D. Brotherson

Great Basin Naturalist

Ecological aspects of desert vegetation in relation to a moisture gradient along an ephemeral stream in central Arizona were investigated. The stream channel, flood plain, and north-, west-, south-, east-facing slopes represent a moisture gradient going from mesic to xeric conditions. Vegetation in some areas of the stream channel intergraded into flood plain vegetation, which in turn intergraded into slope vegetation types. In other areas there were sharp delineations between stream channel and flood plain and between flood plain and slope. Trees and legume species preferred midmoisture habitats, but forbs, shrubs, and succulents preferred dryer areas. Family groups like the …

Annual Energy Budgets For Three Common Rodent Species In The Northern Great Basin, R. Kent Schreiber

Great Basin Naturalist

Annual energy budgets were calculated for three species of small mammals (Peromyscus maniculatus, Onychomys leucogaster, Reithrodontomys megalotis) from the northern Great Basin, Benton County, Washington. Individual ingestion rates were based on species activity, microclimate regime, coefficient of digestibility, caloric diet, and the cost for reproduction. For males and females, the estimated energy expenditures were: P. maniculatus, 6080, 5891; O. leucogaster, 5714, 6587; and R. megalotis, 4057, 3791 kcal/yr. By comparison, each species on an individual basis processes more energy annually than the more abundant species in the community, Perognathus parvus, but their total contribution to community energy flow …

Ecological Distribution Of Rodents In Canyonlands National Park, Utah, David M. Armstrong

Great Basin Naturalist

Studies of microhabitat of 14 species of rodents by cluster analysis suggested that the diverse landscapes of Canyonlands National Park, Utah, include six broad "habitat-types": (1) rimrock; (2) desert shrublands; (3) saxicoline woodland and sagebrush; (4) oakbrush; (5) riparian deciduous woodland; and (6) grasslands. Perognathus parvus and Neotoma cinerea were the species most strongly associated with single "habitat-types," desert shrub and saxicoline woodland, respectively. Peromyscus maniculatus and P. truei were the species associated with the broadest ranges of habitats. The rodents with the most similar habitats were Neotoma mexicana and Peromyscus boylii; Eutamias quadrivittatus, P. truei, and P. crinitus; Ammospermophilus …

Subspecies Specificity Of Gall Forms On Chrysothamnus Nauseosus, E. Durant Mcarthur, Charles F. Tiernan, Bruce L. Welch

Great Basin Naturalist

Galls induced by tephritid flies (Diptera: Tephritidae) on Chrysothamnus nauseosus ssp. albicaulis, consimilis, graveolens, and salicifolius are useful in taxonomic identification of these subspecies in Utah. In this study, "callus" galls were found almost exclusively on ssp. albicaulis. "Cotton" galls were more frequent on ssp. consimilis and graveolens. "Mace" galls occurred on all four subspecies but were the only gall found on naturally occurring populations of ssp. salicifolius. Gall form specificity is not as well correlated with C. nauseosus subspecies in peripheral areas of the species range as in Utah. This decrease in specificity may be due to decreased competition …

Front Matter, Vol. 39 No. 1

Great Basin Naturalist

No abstract provided.

Phytoseiid Predators Of Mite Pests In Utah Apple Orchards, Clive D. Jorgensen, Vichitra Mongkolprasith

Great Basin Naturalist

Recent efforts to integrate phytoseiid predators in pest (mite) management programs for apples have been somewhat successful and economical in several fruit growing areas of North America. Convenient descriptions and reviews of the literature for species which have been collected from Utah are provided to stimulate further local work. Seven species of Amblyseius and five Typhlodromus are described (none new), with notes provided concerning their respective geographic distributions and biologies.

Full Issue, Vol. 39 No. 1

Great Basin Naturalist

No abstract provided.

End Matter, Vol. 39 No. 1

Great Basin Naturalist

No abstract provided.

Vegetational Response To Three Environmental Gradients In The Salt Playa Near Goshen, Utah County, Utah, Michael G. Skougard, Jack D. Brotherson

Great Basin Naturalist

The plant communities and individual plant species in and around a salt playa near Goshen, Utah County, Utah, were studied in relation to gradients for soluble salts, soil moisture, and pH. Forty-eight stands were sampled. Frequency data were taken for all plant species. Soil samples were collected from each site and analyzed to establish the environmental gradients.

Results indicate that the vegetational types respond differentially to the three gradients and can be segregated on the basis of one or more of the gradients. The total soluble salts gradient was found to be the most influential of the three sampled. Correlation …

Amcap Journal Volume 5 Issue 1 1979, Issues In Religion And Psycotherapy

Issues in Religion and Psychotherapy

No abstract provided.