Digital Commons Network^™

Turkey Vultures Decline At A Traditional Roosting Site, Daniel M. Taylor

Great Basin Naturalist

A population decline of about 50% from 1974 to 1981 for Turkey Vultures (Cathartes aura) was found at a traditional roosting site at Malheur National Wildlife Refuge in Oregon. This decline may have been due to a region-wide reduction in this species, to the possible but improbable formation of a new but undiscovered roost, or to a reduction in feeding opportunities caused by the decreased use of the refuge by cattle.

New Species Of Mentzelia (Loasaceae) From Grand County, Utah, Barry A. Prigge

Great Basin Naturalist

A new species, Mentzelia (Section Bartonia) shultziorum, of the Loasaceae (Mentzelioideae) is described. A close relationship with M. multicaulis (Osterh.) Darl. and M. argillosa Darl. is suggested based on the morphology of the flowers, leaves, and seeds.

Genus Paralidia With Descriptions Of New Species (Homoptera: Cicadellidae: Coelidiinae), M. W. Nielson

Great Basin Naturalist

The generic concept of Paralidia Nielson, type-species, Coelidia plaumanni Linnavuori, is reelucidated after five additional new species were found in South America. These are described and illustrated. Four species, all from Brazil, include spinata, retrorsa, denticulata, and bispinosa. One species, singularis, is from Ecuador. A key to males of the six known species is also presented.

Three-Year Surveillance For Cestode Infections In Sheep Dogs In Central Utah, Ferron L. Andersen, Lauritz A. Jensen, H. Dennis Mccurdy, Craig R. Nichols

Great Basin Naturalist

During the summers of 1982, 1983, and 1984, 269 sheep dogs from an area endemic for hydatid disease were examined for cestodes (Echinococcus granulosus and Taenia spp.). Each dog was given an oral purge of arecoline hydrobromide and then following purgation received a subcutaneous injection of praziquantel (Droncit^®). During the three-year study period, 205 dogs were examined one time only, 48 dogs were examined two of the three years, and 16 dogs were examined each of the three years (= 349 separate examinations). In 1982, 45 of 91 dogs examined (49.5%) harbored at least one species of …

Subspecific Identity Of The Amargosa Pupfish, Cyprinodon Nevadensis, From Crystal Spring, Ash Meadows, Nevada, Jack E. Williams, James E. Deacon

Great Basin Naturalist

Samples of pupfish from Crystal, Marsh, and Point of Rocks springs, Ash Meadows, Nevada, were examined to determine the subspecific identity of Cyprinodon nevadensis presently inhabiting Crystal Spring. Meristic and morphometric analyses indicate that Crystal Spring is inhabited by C. n. mionectes. The presence of this subspecies is most likely explained by their precarious survival in the spring's outflow after they were eliminated by transplanted largemouth bass in the spring pool, and their subsequent reestablishment throughout the spring system after the extirpation of the bass.

Two Aberrant Karyotypes In The Sagebrush Lizard (Sceloporus Graciosus): Triploidy And A "Supernumerary" Oddity, Pamela Thompson, Jack W. Sites Jr.

Great Basin Naturalist

Widespread karyotypic sampling in the lizard Sceloporus graciosus Baird & Girard has confirmed previous reports of chromosomal monotypy. Most individuals throughout the range have a diploid karyotype of 2N = 30 consisting of 12 biarmed macrochromosomes and 18 microchromosomes. A single female karyotyped from the vicinity of Riverside, California, was unmistakably triploid, showing 3N = 45 with 18 macrochromosomes and 27 microchromosomes. This female appeared phenotypically normal but appeared reproductively incompetent. A male from Zion National Park, Utah, showed an extra bivalent in some diakinesis arrays, which apparently represents a supernumerary chromosome.

New Thagriine Leafhoppers From The Oriental Region, With A Key To 30 Species (Homoptera: Cicadellidae: Coelidiinae), M. W. Nielson

Great Basin Naturalist

Five new species of Thagria from the Oriental region are described and illustrated. These include melichari from Thailand, unidentata from Indonesia, marissae from southern China, bifida from Nepal, and insolentis from an undetermined locality in the Oriental region. There are presently 166 species in this large and unique genus. A key to males of 30 species is included.

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

Great Basin Naturalist

The following new generic synonymy is proposed: Coptodryas Hopkins (=Microperus Wood), Cyrtogenius Strohmeyer (=Carpophloeus Schedl, Taphroborus Nunberg), Glostatus Schedl (=Ctonocryphus Schedl, Rhopalocryphus Nunberg), Hylurgops LeConte (=Hylescerites Schedl), Hypothenemus Westwood (=Ernophloeus Nunberg), Monarthrum Kirsch (=Eupteroxylon Eggers), Terminalinus Hopkins (=Kelantanius Nunberg), Xylechinus Chapuis (=Pruniphagus Murayama), Xylocleptes Ferrari (=Hylonius Nunberg). New combinations include: Pityophthorus anticus Schedl is transferred to Araptus; Hylesinus machilus Schedl is transferred to Phloeosinus; Phloeophthorus acaciae Lea is transferred to Phloeotribus; Blastophagus squamosus Schedl is transferred to Polygraphus; Chramesus semibrunneus Eggers is transferred to Pseudochramesus; Dacryophthorus capensis Schedl is transferred to …

End Matter, Vol. 46 No. 2

Great Basin Naturalist

No abstract provided.

Full Issue, Vol. 46 No. 2

Great Basin Naturalist

No abstract provided.

Coleoptera Of The Idaho National Engineering Laboratory: An Annotated Checklist, Michael P. Stafford, William F. Barr, James B. Johnson

Great Basin Naturalist

An insect survey was conducted on the Idaho National Engineering Laboratory during the summers of 1981–1983. This site is on the Snake River Plains in southeastern Idaho. Presented here is an annotated checklist of the Coleoptera collected. Successful collecting methods, dates of adult occurrence, and relative abundance are given for each species. Relevant biological information is also presented for some species.

Mormon Bibliography 1985, Scott H. Duvall

BYU Studies

No abstract provided.

Baxtin: The "Disputed" Texts, Susan Bennett-Matteo

Deseret Language and Linguistic Society Symposium

No abstract provided.

Language As "Always Already" Metaphor: The Primacy Of Writing In Vico, Derrida, And Said, Sante Matteo

Deseret Language and Linguistic Society Symposium

No abstract provided.

Seasonal Phenology And Possible Migration Of The Mourning Cloak Butterfly, Nymphalis Antiopa (Lepidoptera: Nymphalidae) In California, Arthur M. Shapiro

Great Basin Naturalist

Circumstantial evidence is presented that suggests the Mourning Cloak undergoes regular seasonal up- and downslope movements in northern California. The species breeds at low elevations in spring and then disappears until autumn; its disappearance coincides with the appearance of fresh individuals in the Sierra Nevada alongside obvious hibernators.

Response Of Winterfat (Ceratoides Lanata) Communities To Release From Grazing Pressure, Lars L. Rasmussen, Jack D. Brotherson

Great Basin Naturalist

Sixteen study sites were established in grazed and ungrazed stands of winterfat in Kane County, Utah. The area is located within the winter range of cattle and along U.S. Highway 89 between Kanab, Utah, and Page, Arizona. Road construction in 1957 dissected several winterfat communities, and following fencing part of the communities were released from grazing. Differences in species composition, vegetation, and soil characteristics between grazed and ungrazed sites were assessed. Major differences in site characteristics appeared due to the influence of winter grazing by cattle. Winterfat and Indian ricegrass showed increased cover on the nongrazed sites following release from …

Apple Maggot (Rhagoletis Pomonella) Adaptation For Cherries In Utah, Clive D. Jorgensen, Darin B. Allred, Richard L. Westcott

Great Basin Naturalist

The apple maggot, Rhagoletis pomonella (Walsh) is reported from Utah County, Utah, where it has adapted to sour cherries. It has been taken repeatedly from pheromone traps in the vicinity of hawthorn (Crataegus douglassii), but there are no Utah data that suggest it has adapted to apples.

Isozymes Of An Autopolyploid Shrub, Atriplex Canescens (Chenopodiaceae), E. Durant Mcarthur, Stewart C. Sanderson, D. Carl Freeman

Great Basin Naturalist

Diploid, tetraploid, and hexaploid populations of Atriplex canescens (x=9) were examined for 18 isozyme systems. Of 24 interpretable loci, only one locus (Per₁) was polymorphic. Another locus (Per₂) showed a dosage effect. Genetic distance values, D, ranged from near 0 to 0.05, which are in the normal range for local species races. Results from clonal ramets gave identical results. The data and analyses support an essentially autopolyploid origin for the polyploid populations examined.

Effects Of Suspended Sediment On Leaf Processing By Hesperophylax Occidentalis (Trichoptera: Limnephilidae) And Pteronarcys Californica (Plecoptera: Pteronarcidae), C. Evan Hornig, Merlyn A. Brusven

Great Basin Naturalist

The effects of suspended sediments on stream invertebrate detrital processing were investigated under replicated conditions in light and temperature-controlled chambers in the laboratory. The leaf-shredding insects Pteronarcys californica and Hesperophylax occidentalis were studied. Mean daily ingestion rates were lower among insects subjected to suspended sediments (1.5 and 3.0 g/l) than insects held in suspended sediment-free environments for seven of the eight trials. In five of the eight trials, mean ingestion rates were suppressed by ≥41% when compared to insects held in suspended sediment-free environments. Feeding inhibition was typically greater at the end of the feeding trials (14 days) than at …

Floristic Analysis Of The Southwestern United States, Steven P. Mclaughlin

Great Basin Naturalist

A study was made of the distributions of native, terrestrial, vascular plants occurring in 50 local floras from throughout the Basin and Range and Colorado Plateau physiographic provinces of the southwestern United States. The objectives of the study were to objectively define and describe the floristic elements-assemblages of species with roughly coincident geographic distribution-occurring in the southwestern United States and to determine what such assemblages reveal about the floristic history of the region.

The total flora (native, terrestrial species only) of the Southwest is estimated at 5,458 species, 77% of which were recorded in 1 or more of the local …

Quercus (Fagaceae) In The Utah Flora, Stanley L. Welsh

Great Basin Naturalist

Reviewed are the oak taxa as they are presently understood in Utah. Keys and descriptions are included, occurrences are cited, and problems of hybridization are discussed. Named as new varieties from Utah are Quercus gambelii Nutt. var. bonina Welsh and Quercus havardii Rydb. var. tuckeri Welsh. Both varieties occur in southeastern Utah. Quercus eastwoodiae Rydb. is proposed as a hybrid.

Winter Nutritive Content Of Black Sagebrush (Artemisia Nova) Grown In A Uniform Garden, Barbara Behan, Bruce L. Welch

Great Basin Naturalist

Winter crude protein content, in vitro digestibility, and productivity were determined for seven accessions of black sagebrush (Artemisia nova) grown in a uniform garden. No significant differences were detected among the accessions for any of these attributes. Mean crude protein was 6.8% of dry matter. Accessional range was from 5.8% to 7.3%. Mean in vitro digestion was 54.8% of dry matter; accessional range, 51.9% to 57.2%. Mean current year's growth (a measurement of productivity) was 4.3 cm; accessional range, from 3.7 to 5.1 cm. In comparison to other winter forages, black sagebrush ranks high for winter levels of …

End Matter, Vol. 46 No. 1

Great Basin Naturalist

No abstract provided.

Dynamic Landforms And Plant Communities In A Pluvial Lake Basin, James A. Young, Raymond A. Evans, Bruce A. Roundy, John A. Brown

Great Basin Naturalist

Mapping units were developed based on landform, soils, and plant communities for the 40,000 ha of salt desert vegetation located below the maximum level of pluvial Lake Gilbert in Grass Valley, Nevada. Lake plain, beach, and bar features of the pluvial lake provide the dominant landforms. Fine textured lake sediments have produced salt- and Na-affected soils. The distribution and structure of plant communities are related to depth of the groundwater table, fluctuations in this depth, and the salt content of the groundwater. Wind and water erosion combine to continually evolve new environments for colonization by plants in this ecosystem.

Effects Of Watershed Alteration On The Brook Trout Population Of A Small Black Hills Stream, Timothy Modde, Henry G. Drewes, Mark A. Rumble

Great Basin Naturalist

The impacts of adjacent landscaping activity and livestock presence on the brook trout (Salvelinus fontinalis) population of a small Black Hills stream were evaluated. Moderate changes in temperature, turbidity, and fecal coliform numbers did not influence brook trout densities. Stream morphometry, particularly factors affecting stream cover, appeared to have the greatest impact on numbers of trout. Brook trout were poor indicators of moderate changes in water quality, but they were adequate indicators of the physical perturbations within the stream.

Winter Food Habits Of The Pine Marten In Colorado, Christine C. Gordon

Great Basin Naturalist

Eighteen pine marten (Martes americana) stomachs and 29 intestinal tracts, collected between October 1983 and March 1984 from northern Colorado, were examined for food items. Voles (Microtus spp.) occurred most frequently, followed by shrews (Sorex spp.), insects, and vegetative matter.

Front Matter, Vol. 46 No. 1

Great Basin Naturalist

No abstract provided.

Toward A Social Science Of Contemporary Mormondom, Howard M. Bahr, Renata Tonks Forste

BYU Studies

No abstract provided.

Healing Problems Of Intimacy By Clients' Use Of Gospel-Based Values And Role Definitions, Victor L. Brown Jr.

BYU Studies

No abstract provided.

What We Are, C. Terry Warner

BYU Studies

No abstract provided.