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A New Species And New Synonym In The Genus Psychoronia (Limnephilidae), With Significant Records For Caddisflies (Trichoptera) From Western North America, David E. Ruiter

Great Basin Naturalist

A new species of caddisfly, Psychoronia brooksi (Limnephilidae), is described from New Mexico, and Psychoronia brevipennis (Banks) 1904 is designated as a junior synonym of Psychoronia costalis Banks 1901. Additional distributional records and notes for 51 caddisfly species are also presented.

Helminths Of The Madrean Alligator Lizard, Elgaria Kingii (Sauria: Anguidae), From Arizona, Stephen R. Goldberg, Charles R. Bursey, Hay Cheam

Great Basin Naturalist

No abstract provided.

Helminths Of The Lowland Burrowing Treefrog, Ptyernohyla Fodiens (Hylidae), From Southern Arizona, Stephen R. Goldberg, Charles R. Bursey, Guillermo Galindo

Great Basin Naturalist

No abstract provided.

Effect Of Salinity On Seed Germination Of Triglochin Maritima Under Various Temperature Regimes, M. Ajmal Khan, Irwin A. Ungar

Great Basin Naturalist

Triglochin maritima L. (arrow grass), an herbaceous perennial in the family Juncaginaceae, is widely distributed in inland and coastal salt marshes of North America. Triglochin maritima seeds from a population growing in a salt marsh at Faust, Utah, were germinated at 4 temperature regimes (12-h night/12-h day, 5–15°C, 5–25°C, 10–20°C, and 15–25°C) and 5 salinities (0, 100, 200, 300, 400, and 500 mol m⁻³ NaCl) to determine optimal conditions for germination and level of salt tolerance. Ungerminated seeds were returned to distilled water after 20 d to determine whether seeds could recover from salinity treatments. Maximum germination occurred in …

Full Issue, Vol. 59 No. 2

Great Basin Naturalist

No abstract provided.

Reproductive Ecology Of Bison On Antelope Island, Utah, Michael L. Wolfe, Milan P. Shipka, John F. Kimball

Great Basin Naturalist

Autumn musters of bison (Bison bison) on Antelope Island State Park, Utah, conducted annually since 1987, provided data on temporal and age-specific reproductive patterns and a basis to evaluate the efficacy of management measures implemented to elevate reproductive performance in the herd. Pregnancy rates were variable and low (x̄ = 46.2%) in comparison to other free-ranging, noncommercial bison herds in North America. Cows in the 3- and >6-yr age classes exhibited lower-than-expected pregnancy rates (P < 0.05). Annual pregnancy rates showed a significant (r = 0.64, P = 0.047) linear decline of 2.5% per annum. Variance in distribution of fetal ages observed in 6 …

Stream Temperatures And The Elevational Distribution Of Redband Trout In Southwestern Idaho, Bruce W. Zoellick

Great Basin Naturalist

During July to September 1994–1996, I examined water temperatures at the lower end of the elevational distribution of redband trout (Oncorhynchus mykiss gairdneri) in 4 streams in the Owyhee Mountains in southwestern Idaho. Maximum water temperatures in Castle, Shoofly, Little Jacks, and Big Jacks creeks during low flows during a drought in 1994 ranged from 26.7°C to 29.0°C. Water temperatures fluctuated 9.5–11°C during the 24-h period maximum temperatures were observed. Stream flows at the lower end of Big Jacks and Little Jacks creeks in 1994 were <0.003 m³ s⁻¹ and subsided underground 50–130 m downstream of pools inhabited …

Assortative Mating In Soldier Beetles (Cantharidae, Chauliognathus): Test Of The Mate-Choice Hypothesis, Ruth Bernstein, Stephen Bernstein

Great Basin Naturalist

Soldier beetles of 2 species, Chauliognathus basalis and C. deceptus, were examined to test the Crespi hypothesis that positive assortative mating by size is caused by mate choice. Specifically, we tested the prediction that if mate choice involves choosing the largest mate available, then mating individuals will be larger than nonmating individuals. Four samples were taken, at different times during the mating season, from each of 2 sites. Each sample consisted of mating pairs, nonmating males, and nonmating females. Some of the samples contained beetles of both species; others contained beetles of a single species. For each gender elytron …

Competition And Niche Partitioning Among Pseudoroegneria Spicata, Hedysarum Boreale, And Centaurea Maculosa, James S. Jacobs, Roger L. Sheley

Great Basin Naturalist

Maximizing desired plant diversity has been suggested as a means of minimizing non-indigenous plant invasion on rangeland by maximizing niche occupation. Competition between 2 desired indigenous species, Pseudoroegneria spicata (Pursh.) Löve (bluebunch wheatgrass) and Hedysarum boreale Nutt. var. boreale (northern sweetvetch), and a non-indigenous invader, Centaurea maculosa Lam. (spotted knapweed), was quantified using growth of isolated individuals and 2 three-species addition series experiments. Seeding densities of P. spicata remained constant at 0, 200, 400, and 800 seeds m⁻² in both experiments. H. boreale and C. maculosa seeding densities were 0, 200, 400, and 800 seeds m⁻², respectively, …

An Irvingtonian Species Of Brachylagus (Mammalia: Lagomorpha) From Porcupine Cave, Park County, Colorado, Colleen N. Ramos

Great Basin Naturalist

Brachylagus is currently a monotypic genus of uncertain origins and known only from Holocene and late Rancholabrean. A new species of leporid is described from the early and middle Pleistocene (Irvingtonian) deposits of Porcupine Cave, Park County, Colorado. Stratified deposits of the Pit and the Velvet Room, 2 localities within Porcupine Cave, have been dated biochronologically and paleomagnetically from the middle Irvingtonian and early to middle Irvingtonian, respectively. Brachylagus coloradoensis sp. nov., is characterized by its conserved p3 enamel patterns which are intermediate between B. idahoensis and Hypolagus, and its size which is slightly larger than that of B. idahoensis …

Remarkable Waxing, Waning, And Wandering Of Populations Of Mimulus Guttatus: An Unexpected Example Of Global Warming, Robert K. Vickery Jr.

Great Basin Naturalist

The purpose of this study was to observe the dynamics of a meta-population of Mimulus guttatus. Changes in size and location of 16 original populations and the new populations established in their vicinities in Big Cottonwood Canyon, Salt Lake County, Utah, were observed for 25 yr. Twenty-three new populations appeared. Seven original populations and 13 new populations had become extinct by the end of the observation period in 1996. Many populations died out and were reestablished, often repeatedly, during the observation period. Altogether there were 54 population disappearances and 34 reappearances. Many populations changed sized as much as 100-fold …

The Spirit Of Truth In Personality: Implications For Counseling And Psychotherapy, P. Scott Richards

Issues in Religion and Psychotherapy

No abstract provided.

Hedonism, Suffering, And Redemption: The Challenge Of Christian Psychotherapy, Edwin E. Gantt

Issues in Religion and Psychotherapy

No abstract provided.

Beyond The Study Of The Natural Man: A Gospel Perspective On Human Nature, Timothy B. Smith, Matthew Draper

Issues in Religion and Psychotherapy

No abstract provided.

Gospel Law And Natural Law: Practicing Psychotherapy In A Spiritual Context, Stephen C. Yanchar, Amy Fisher Smith

Issues in Religion and Psychotherapy

No abstract provided.

Relationships: Philosophical And Spiritual Foundations For Counseling, Aaron P. Jackson

Issues in Religion and Psychotherapy

No abstract provided.

The Nature Of Change In Counseling: A Change Of Heart, Randy K. Moss

Issues in Religion and Psychotherapy

No abstract provided.

Agency: Philosophical And Spiritual Foundations For Applied Psychology, Richard Williams

Issues in Religion and Psychotherapy

No abstract provided.

S.J. De Laet (Ed.), A.H. Dani, J.L. Lorenso, R.B. Nunoo (Eds.) History Of Humanity, Vol. 1, Prehistory And The Beginning Of Civilization, Arthur S. Iberall

Comparative Civilizations Review

No abstract provided.

Thomas C. Patterson. Inventing Western Civlization., Laurence Grambow Wolf

Comparative Civilizations Review

No abstract provided.

Richard E. W. Adams. Prehistoric Mesoamerica. Revised Edition, Arthur S. Iberall

Comparative Civilizations Review

No abstract provided.

Stephen K. Sanderson. Social Evolutionism: A Critical History, Laurence Grambow Wolf

Comparative Civilizations Review

No abstract provided.

Interval Matching And Control For Hexahedral Mesh Generation Of Swept Volumes, Jason F. Shepherd

Theses and Dissertations

Surface meshing algorithms require certain relationships among the number of intervals on the curves that bound the surface. Assigning the number of intervals to all of the curves in the model such that all relationships are satisfied is called interval assignment. Volume meshing algorithms also require certain relationships among the numbers of intervals on each of the curves on the volume. These relationships are not always captured by surface meshing requirements. This thesis presents a news technique for automatically identifying volume constraints. In this technique, volume constraints are grouped with surface constraints and are solved simultaneously. A sweepable volume has …

Values Of Christian Families: Do They Come From Unrecognized Idols?, Brent D. Slife

BYU Studies

Family values among today's Christians show the popularity of modernist and postmodernist philosophies. Of the four more prevalent views, only one is truly compatible with Christianity.

Monte Carlo Study Of The Capacitance Of The Double Layer In A Model Molten Salt, Douglas Henderson, Dezso Boda, Kwong-Yu Chan

Faculty Publications

Monte Carlo simulations are reported for charged hard spheres at high density near a charged wall. This system is a simple model for a molten salt double layer. Unfortunately, the reduced temperatures that correspond to experiment are very small. This results in a large Boltzmann factor. As a result, we are unable to obtain meaningful results for such low values and report results only for moderately low values of the reduced temperature. Even so, our results should be a useful benchmark. Further, we are able to give a qualitative answer to an interesting question. We find that at low temperatures …

Combustion Properties Of Biomass, B. M. Jenkins, Larry Lin Baxter 8507091, T. R. Miles Jr, T. R. Miles

Faculty Publications

Properties of biomass relevant to combustion are briefly reviewed. The compositions of biomass among fuel types are variable, especially with respect to inorganic constituents important to the critical problems of fouling and slagging. Alkali and alkaline earth metals, in combination with other fuel elements such as silica and sulfur, and facilitated by the presence of chlorine, are responsible for many undesirable reactions in combustion furnaces and power boilers. Reductions in the concentrations of alkali metals and chlorine, created by leaching the elements from the fuel with water, yield remarkable improvements in ash fusion temperatures and confirm much of what is …

The Behavior Of Inorganic Material In Biomass-Fired Power Boilers: Field And Laboratory Experiences, Larry Lin Baxter 8507091, Thomas R. Miles, Thomas R. Miles Jr, Bryan M. Jenkins, Thomas Milne, David Dayton, Richard W. Bryers, Larry L. Oden

Faculty Publications

This paper highlights some of the major findings of the Alkali Deposits Investigation, a collaborative effort to understand the causes of unmanageable ash deposits in biomass-fired electric power boilers. A group of interested industrial institutions and the US DOE Energy Efficiency and Renewable Energy Office's Biomass Power Program through the National Renewable Energy Laboratory jointly sponsored the project. The industries contributed both funding and, in most cases, use of facilities to the project and included Mendota Biomass Power and Woodland Biomass Power (both associated with Thermo Electron Energy Systems), CMS Generation Operating (formerly Hydra-Co Operations), Wheelabrator, Shasta and Hudson Energy, …

Temporal Patterns Of Seedling Emergence And Early Survival Of Great Basin Perennial Plant Species, L. David Humphrey, Eugene W. Schupp

Great Basin Naturalist

We seeded Agropyron cristatum and 16 native Great Basin perennial species on Bromus tectorum–dominated sites to compare temporal patterns of seedling emergence and early survival among species. To indicate variability between sites and between years, plots were planted on 2 sites in western Utah in autumn 1994, and plantings were repeated near 1 site in autumn 1995. Two sites included burned and unburned seedbed treatments. We monitored seedling emergence and survival from early winter until July of the 1st year. Four seasonal patterns of emergence were evident, indicating considerable potential for different seasonal patterns of precipitation to favor recruitment …

Throughfall Volume And Chemistry As Affected By Precipitation Volume, Sapling Size, And Defoliation Intensity, T. D. Schowalter

Great Basin Naturalist

Throughfall and stemflow are important components of hydrologic processes in forests, but relative contributions of multiple factors, including precipitation volume, plant size, and folivory (leaf removal by defoliators), on throughfall/stemflow have not been reported. This paper reports the relative influences of precipitation volume (0–230 L m⁻²), sapling size (1.4–6.7 cm diameter at root collar; 0.07–0.45 kg calculated dry foliage mass), and manipulated folivory (0–20% foliage removal) on throughfall volume and N, K, and Ca fluxes as evaluated with stepwise multiple regression in a young Douglass-fir (Pseudotsuga menziesii [Mirb.] Franco) ecosystem.

Precipitation volume explained most variation in throughfall …

New Distributional Records For Spotted Bat (Euderma Maculatum) In Wyoming, John Priday, Bob Luce

Great Basin Naturalist

Before 1990 the spotted bat (Euderma maculatum) was known in Wyoming from only 2 records. Between June 1994 and May 1997 we documented habitat use and observations incidental to conducting a bat inventory of caves and abandoned mines. By monitoring audible echolocation calls, we observed bats at mist-netting sites. Spotted bats were heard or captured on 13 nights at 10 locations, all of which were near canyons or high cliff faces. No foraging habitat preferences were noted. E. maculatum occurrence appears to be related to roost structure, roost availability, and proximity to a permanent water source.