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Heritage, Johannes Knudsen Jan 1978

Heritage, Johannes Knudsen

The Bridge

The term "heritage" brings up associations of "heredity" and this again reminds us of genes and the genetic code. Heritage in this sense is terribly important. We are programmed by our genes. Our appearance and condition are pre-determined in many ways, ranging from the color of our eyes to the state of our health and the potential of our mind, and including negative as well as positive features. Genetic heritage can be a blessing and it can be a burden. It has the greatest significance for the individual, but is also an important corporate factor. Ethnic groups have genetic features …

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Mormon Poor Relief: A Social Welfare Interlude, Betty L. Barton Jan 1978

Mormon Poor Relief: A Social Welfare Interlude, Betty L. Barton

BYU Studies

There has been considerable scholarship about the law of consecration in the early days of The Church of Jesus Christ of Latter-day Saints and about the more recent Church welfare plan, but there has been relatively little written about Mormon welfare in the period roughly between 1850 and 1930. Many of the early pioneers in the Salt Lake Valley faced starvation, so President Brigham Young created public works projects in order to give people jobs, acting under the belief that it is better to help people help themselves than to simply give them handouts. Unlike much of American society of …

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Bionomics Of A Subterranean Gall Midge (Diptera: Cecidomyiidae) From Artemisia Ludoviciana, M. A. S. K. Ranasinghe Dec 1977

Bionomics Of A Subterranean Gall Midge (Diptera: Cecidomyiidae) From Artemisia Ludoviciana, M. A. S. K. Ranasinghe

Great Basin Naturalist

Bionomics of a gall midge that emerged from nodulelike structures of herbaceous sage, Artemisia ludoviciana, was studied as a part of a larger investigation on possible nitrogen fixation by this plant. Infested plants collected from the field were regularly examined in the laboratory where some of them were grown in a liquid nutrient medium. In the laboratory, adult midges were reared from pupae and induction of infestation was attempted. Apparent nodulation of these plants is caused by the subterranean bud galls of a previously unknown gall midge, Rhopalomyia subhumilis Gagné. Life history of this midge is reported. These midges have …

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Nectar-Sugar Concentrations And Flower Visitors In The Western Great Basin, Larry J. Gut, Robert A. Schlising, Carol E. Stopher Dec 1977

Nectar-Sugar Concentrations And Flower Visitors In The Western Great Basin, Larry J. Gut, Robert A. Schlising, Carol E. Stopher

Great Basin Naturalist

Nectar-sugar concentrations and major flower visitors were determined for 15 species of plants in the Eagle Lake area of Northeastern California. Sugar concentrations for 12 of these are reported for the first time, with means ranging from a low of 10 percent in Mentzelia laevicaulis to a high of 63 percent in Ranunculus uncinatus. The utilization of the various nectar concentrations varied with the type of flower visitor as well as with the habitat and distributional ranges of the plant and/or animal. Hummingbirds and hawkmoths were not observed visiting the flowers they typically visit in other areas (e.g. Aquilegia and …

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Stilt Sandpiper And Hudsonian Godwit In Nevada, C. S. Lawson Dec 1977

Stilt Sandpiper And Hudsonian Godwit In Nevada, C. S. Lawson

Great Basin Naturalist

No abstract provided.

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Front Matter, Vol. 37 No. 4 Dec 1977

Front Matter, Vol. 37 No. 4

Great Basin Naturalist

No abstract provided.

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New Grass Distribution Records For New Mexico And The United States, Stephan L. Hatch Dec 1977

New Grass Distribution Records For New Mexico And The United States, Stephan L. Hatch

Great Basin Naturalist

New distribution records are given for 13 grasses now found in New Mexico. One of these, Urochloa panicoides Beauv., is a new distribution record for the United States.

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Index [And Table Of Contents] To Volume 37 Dec 1977

Index [And Table Of Contents] To Volume 37

Great Basin Naturalist

No abstract provided.

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Population Dynamics Of The Ferruginous Hawk During A Prey Decline, Neil D. Woffinden, Joseph R. Murphy Dec 1977

Population Dynamics Of The Ferruginous Hawk During A Prey Decline, Neil D. Woffinden, Joseph R. Murphy

Great Basin Naturalist

A nesting population of Ferruginous Hawks (Buteo regalis) at the eastern edge of the Great Basin in west-central Utah was studied for three nesting seasons, 1972–1974, during which time a significant decline in jackrabbit numbers occurred. The total number of hawks and nesting pairs varied throughout the study. In 1972, 16 pairs occupied territories and only 1 pair failed to nest. By 1974, however, only 5 pairs and 2 single birds occupied territories. The number of young fledged ranged from 31 in 1972 to 3 in 1974. The nesting phenology of the Ferruginous Hawk and the reproductive period …

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A New Species Of Rhopalomyia (Diptera: Cecidomyiidae) From Artemisia Ludoviciana Nuttall (Compositae) In Utah, Raymond J. Gagne Dec 1977

A New Species Of Rhopalomyia (Diptera: Cecidomyiidae) From Artemisia Ludoviciana Nuttall (Compositae) In Utah, Raymond J. Gagne

Great Basin Naturalist

Rhopalomyia (Diarthronomyia) subhumilis Gagné, a new species of Artemisia ludoviciana Nuttall (Compositae), is described and its taxonomically important structural features illustrated. The new species is compared to its most similar North American congeners.

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New Synonymy And New Species Of American Bark Beetles (Coleoptera: Scolytidae), Part Vi, Stephen L. Wood Dec 1977

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

Great Basin Naturalist

New synonymy of American Scolytidae is proposed as follows: Corthylus Erichson ( = Pseudocorthylus Ferrari), Hylesinus Fabricius ( = Leperisinus Reitter), Monarthrum Kirsch ( = Anchonocerus Eichhoff), Corthylus spinifer Schwarz ( = Metacorthylus affinis Fonseca, Corthylus affinis Fonseca), Cryphalus ruficollis Hopkins ( = Cryphalus amabilis Chamberlin, Cryphalus coloradensis Wood), Gnathotrichus retusus (LeConte) ( = Gnathotrichus alni Blackman), Gnathotrichus sulcatus (LeConte) ( = Gnathotrichus aciculatus Blackman), Hypothenemus eruditus Westwood ( = Hypothenemus germari Eichhoff, Stephanoderes myrmidon Eichhoff, Stephanoderes intersetosus Eggers), Hypothenemus seriatus Eichhoff ( = Stephanoderes nitidulus Hopkins, Stephanoderes subopacicollis Hopkins), Hypothenemus obscurus (Fabricius) ( = Stephanoderes asperulus Eichhoff, Stephanoderes cassiae …

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End Matter, Vol. 37 No. 4 Dec 1977

End Matter, Vol. 37 No. 4

Great Basin Naturalist

No abstract provided.

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Photosynthetic Fractionation Of Oxygen Isotopes, A Study With Elodea Canadensis, Glen E. Martin Dec 1977

Photosynthetic Fractionation Of Oxygen Isotopes, A Study With Elodea Canadensis, Glen E. Martin

Theses and Dissertations

Bubbles of oxygen from Elodea canadensis were collected and found 5 per mil enriched in 0-18. This confirms the results of both Dole and Vinogradov, who found 0-18 enrichment of photosynthetic oxygen relative to its source, i.e. water. Photosynthesis and respiration appear to have produced the Dole effect, i.e. the 22 per mil 0-18 enrichment of atmospheric oxygen relative to ocean water, its probable source. These results are contrary to findings for both UV photolysis and electrolysis of water both evolving oxygen found depleted in 0-18.

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Feeding Biology And Ecological Aspects Of A Cancroid Crab Cancer Oregonensis (Dana) Rathbun (Decapoda, Brachyura), Gary L. Child Dec 1977

Feeding Biology And Ecological Aspects Of A Cancroid Crab Cancer Oregonensis (Dana) Rathbun (Decapoda, Brachyura), Gary L. Child

Theses and Dissertations

In the San Juan Archipelago, cancer oregonensis (Dana) Rathbun (Fig. 1) is abundant and distributed from the low intertidal zone to -435 m subtidally (Rathbun, 1904). Ricketts and Calvin (1974) refer to c. oregonensis as the most common Cancer species in this area.

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Leaf Litter Processing In Aquatic Systems Two Variable Model, Boyd Jay Hanson Dec 1977

Leaf Litter Processing In Aquatic Systems Two Variable Model, Boyd Jay Hanson

Theses and Dissertations

The adequacy of the negative exponential model with one independent variable, days or accumulated time, as a descriptive equation for aquatic leaf litter processing was examined. The effect of adding a second independent variable, degree days or accumulated temperature, to the model was also examined. The two variable negative exponential model was shown to have at least two advantages over the single variable model. The two variable model adequately fits litter processing data for more cases than the single variable model. The expanded model also allows determination of rate coefficients for various temperature levels of the experiment rather than assuming …

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Algal Response To A Thermal Effluent : Study Of A Power Station On The Provo River, Utah, Usa, Lorin E. Squires Dec 1977

Algal Response To A Thermal Effluent : Study Of A Power Station On The Provo River, Utah, Usa, Lorin E. Squires

Theses and Dissertations

The effect of a thermal effluent on the attached algae of the Provo River, Utah, USA, was studied from 1975 to 1977. Data for macroscopic and microscopic algae were collected and analyzed. Diatoms, Cladophora glomerata, and Hydrurus foetidus dominated the flora. The thermal effluent significantly affected the algal flora in a section of river 100 to 135 meters long immediately below the discharge point. Cladophora growth was increased and Hydrurus was absent in this area. In addition, diatom production was often higher and diversity lower than in the rest of the river. Community structure was unique from all other adjacent …

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The Algal Flora Of The Campus Of Brigham Young University, Provo, Utah, Cheng Mou-Sheng, Samuel R. Rushforth Sep 1977

The Algal Flora Of The Campus Of Brigham Young University, Provo, Utah, Cheng Mou-Sheng, Samuel R. Rushforth

Great Basin Naturalist

The algal flora of the Brigham Young University campus is more diverse than previously thought. Sixty-eight genera containing 160 species of Chlorophyta, Euglenophyta, Chrysophyta, and Cyanophyta were collected and identified. The greatest number of species was obtained from a small pond in the arboretum, with progressively fewer species obtained in the irrigation canal partly surrounding the campus and in specialized habitats in the greenhouses.

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New Synonymy And New Species Of American Bark Beetles (Coleoptera: Scolytidae), Part V, Stephen L. Wood Sep 1977

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

Great Basin Naturalist

New synonymy of American Scolytidae is proposed as follows: Phloeoborus Erichson ( = Phloeotrupes Erichson), Phloeotribus Latreille ( = Eulytocerus Blandford), Scolytodes Ferrari ( = Epomadius Blandford), Carphoborus pinicolens Wood ( = Carphoborus tuberculatus Bright), Coccotrypes indicus (Eggers) ( = Dryocoetes subimpressus Eggers), Coccotrypes surinamensis Schedl ( = Coccotrypes brevipilosus Eggers), Conophthorus coniperda Schwarz ( = Conophthorus clunicus Hopkins, Conophthorus taedae Hopkins), Conophthorus ponderosae Hopkins ( = Conophthorus scopulorum Hopkins, Conophthorus contortae Hopkins, Conophthorus monticolae Hopkins, Conophthorus flexilis Hopkins, Conophthorus lambertianae Hopkins), Conophthorus resinosae Hopkins ( = Conophthorus virginianae Hopkins), Cryphalomorphus knabi (Hopkins) ( = Cryphalomorphus minutissimus Schedl), Ips grandicollis …

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End Matter, Vol. 37 No. 3 Sep 1977

End Matter, Vol. 37 No. 3

Great Basin Naturalist

No abstract provided.

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Biomass Of Fifty Conifer Forests And Nutrient Exports Associated With Their Harvest, T. Weaver, F. Forcella Sep 1977

Biomass Of Fifty Conifer Forests And Nutrient Exports Associated With Their Harvest, T. Weaver, F. Forcella

Great Basin Naturalist

Biomasses of climax Rocky Mountain forests studied ranged from less than 50 to more than 300 tons/ha. Total biomass was approximately 1.5 times the biomass of normally merchantable boles. When compared with conventional bole harvest, the nutrient exports associated with harvest of all aboveground parts in these stands would apparently be at least three times higher for nitrogen, six times higher for phosphorus, four times higher for potassium, and three times higher for calcium.

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Typhlodromus Mcgregori Chant (Acarina: Phytoseiidae) And Its Control Of Phytophagous Mites In Utah And Southern California Apple Orchards, B. A. Croft, C. D. Jorgensen Sep 1977

Typhlodromus Mcgregori Chant (Acarina: Phytoseiidae) And Its Control Of Phytophagous Mites In Utah And Southern California Apple Orchards, B. A. Croft, C. D. Jorgensen

Great Basin Naturalist

A review of published and unpublished data for the predatory mite Typhlodromus mcgregori in Utah and southern California apple growing areas is presented to summarize its role. Typhlodromus mcgregori was not found resistant to pesticides and, although usually present with Bryobia rubrioculus, only when Aculus schlechtendali was also present was there significant predation on B. rubrioculus. Aculus schlechtendali was considered the primary host and B. rubrioculus secondary for T. mcgregori. Typhlodromus occidentalis was always found associated with Tetranychus spp. and often with Eotetranychus and Pronematus ubiquitus in unsprayed orchards.

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The Accumulation And Metabolism Of Triphenyltin Hydroxide (Du-Ter) In Crayfish (Procambarus Clarkii) In A Model Ecosystem, John Gary Hollingshaus Aug 1977

The Accumulation And Metabolism Of Triphenyltin Hydroxide (Du-Ter) In Crayfish (Procambarus Clarkii) In A Model Ecosystem, John Gary Hollingshaus

Theses and Dissertations

Triphenyltin hydroxide (TPTH) appears to be relatively stable in soil. Only minor partitioning into water occurred because of the insolubility of TPTH in water and its adsorption to soil. Residues in the water were also relatively stable. The concentration. of TPTH in the tissues of crayfish exposed to 1.0 ppm of TPTH in the soil was 0.1 ppm or 10% that of the environment. Crayfish exposed to 0.01 ppm of TPTH in the soil had 0.005 ppm TPTH in their tissues or 50% that of the environment. Greater than 80% of the residue in the muscle tissue appeared to be …

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Ethionine-Resistant Mutants Of The Filamentous Blue-Green Alga Plectonema Boryanum /|Cby Wayne M. Hentsche, Wayne M. Hentschel Aug 1977

Ethionine-Resistant Mutants Of The Filamentous Blue-Green Alga Plectonema Boryanum /|Cby Wayne M. Hentsche, Wayne M. Hentschel

Theses and Dissertations

Ethionine-resistant mutans of Plectonema boryanum have been isolated and partially characterized. The mutant strains exhibit at least 100-fold increase in resistance to L-ethionine. The nature of the change which confers ethionine resistance is not known, but appears to result from the inability of the resistant strains to incorporate ethionine into acid-precipitable material. Initially, ethionine has no effect on the growth rate of the wild-type or the resistant strains, but several hours of exposure to the analog at a concentration greater than 0.5 μg/ml causes a marked inhibition of growth and bleaching in the wild-type cells. The onset of bleaching precedes …

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The Plant Communities Of Arches National Park, John Stevens Allan Aug 1977

The Plant Communities Of Arches National Park, John Stevens Allan

Theses and Dissertations

Arches National Park, located in southeastern Utah, lies in a transition zone between the southwestern hot desert and the western cold desert, but it is floristically most similar to the hot desert. The major plant communities are as follows: Juniper-pinyon, blackbrush, grasslands and sand dune association. Other community types occur but occupy very limited areas. All of the communities studied have a high degree of uniqueness and merit recognition as separate entities. Blackbrush showed the greatest overall similarity to other communities and was most similar to the sand dune communities. The hanging gardens were the most distinctive and covered the …

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The Sage Creek Mountain Local Fauna Of The Bridger Formation Near Lonetree, Wyoming, Steven W. Barker Aug 1977

The Sage Creek Mountain Local Fauna Of The Bridger Formation Near Lonetree, Wyoming, Steven W. Barker

Theses and Dissertations

The Bridger Formation in the Green River Basin has been divided into two members, the lower Black's Fork member and the upper Twin Buttes member. 'Ihe Black's Fork member is composed of' biostratigraphlc zones A and Band the Twin Buttes member is com-posed of biostratigraphic zones C, D and E. Recent workers have found that zones A and B contain the same fauna and therefore represent just one biostratigraphic zone (McGrew 1971, Robinson 1970). Future studies of the biostratigraphic zones of the Twin Buttes member are necessary to determine if the C, D and E zones are valid. Some are …

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High Pressure Liquid Chromatographic Methods For The Separations Of Derivatized Alpha-Keto Acids And Thiamine Phosphate Esters, Bruce Clark Hemming Aug 1977

High Pressure Liquid Chromatographic Methods For The Separations Of Derivatized Alpha-Keto Acids And Thiamine Phosphate Esters, Bruce Clark Hemming

Theses and Dissertations

Improved methods have been developed for separation of a-keto acid derivatives and for thiamine and its phosphate esters. Linear gradient reverse phase chromatography using ion-pair formation provides baseline resolution for a seven-component homologous series of a-keto acid dinitrophenylhydrazones having increasing carbon chain lengths. Branched-chain keto acids can also be separated. Aldehyde derivatives were examined as possible interfering compounds. Peak identification in biological material was confirmed for pyruvate by an enzymic peak shift technique. Monitoring near 365 nm permits low nanogram detection. Preliminary studies of keto acids in biological material illustrate the method's applicability. The same system with slight changes separates …

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Plant Dioecy, Ecology, Evolution And Sex Reversal, D. Carl Freeman Aug 1977

Plant Dioecy, Ecology, Evolution And Sex Reversal, D. Carl Freeman

Theses and Dissertations

The distribution of dioecious species among forty-four plant communities of western United States was examined. The dioecious habit is most prevalent in harsh environments. In many communities, over 20 percent of the species and 40 percent of the individuals are dioecious. Dioecy is most common among woody species which are pollinated by wind. It is concluded that inbreeding depression alone is insufficient to account for all known facts concerning dioecy. Disruptive selection acting upon differential success of gametes produced on sites of differing quality appears to have played a major role in producing separate sexed individuals. Dioecious species reported to …

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Bionomics Of A Subterranean Gall Midge (Diptera : Cecidomyiidae) From Artemisia Ludoviciana, Ranasinghe Aug 1977

Bionomics Of A Subterranean Gall Midge (Diptera : Cecidomyiidae) From Artemisia Ludoviciana, Ranasinghe

Theses and Dissertations

Bionomics of a gall midge that emerged from nodulelike structures of herbaceous sage, Artemisia ludoviciana Nutt., was studied as a part of a larger investigation on possible nitrogen fixation by this plant. Infested plants collected from the field were regularly examined in the laboratory where some of them were grown in a liquid nutrient medium. In the laboratory, adult midges were reared from the pupae and induction of infestation was attempted. Apparent nodulation on these plants is caused by the subterranean bud galls of a previously unknown gall midge species, Rhopalomyia subhumilis Gagne. The life history of this midge is …

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The Mammals Of Zion National Park With Emphasis On Ecology And Distribution Of Twelve Species Of Rodents, Paul A. Gardner Jul 1977

The Mammals Of Zion National Park With Emphasis On Ecology And Distribution Of Twelve Species Of Rodents, Paul A. Gardner

Theses and Dissertations

Information concerning the mammals of Zion National Park was needed for management purposes and general information. During the summers of 1975 and 1976, mammals observed throughout the park were recorded and habitat structure was measured for each animal at the immediate observation site. Ordinations based on stepwise discriminant analyses of the data on 12 rodent species were constructed and substantiated by Bray-Curtis analyses. The results showed that amounts of cover and boulders contrasted the habitats of Peromyscus eremicus, P. maniculatus, P. crinitus, P. boylii and P. truei. A second group of species--Eutamias minimus, E. umbrinus, Spermophilus variegatus, Tamiasciurus hudsonicus, Dipodomys …

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Behavior And Age Class Structure Of Wintering Northern Bald Eagles (Haliaeetus Leucocephalus Alascanus) In Western Utah, Ronald A. Joseph Jul 1977

Behavior And Age Class Structure Of Wintering Northern Bald Eagles (Haliaeetus Leucocephalus Alascanus) In Western Utah, Ronald A. Joseph

Theses and Dissertations

Bald Eagles in Cedar and Rush Valleys of western Utah were studied from 1975 to 1977. Arriving in mid-November, the eagles departed in mid-March. A statewide Bald Eagle census revealed 200 to 300 birds. Wintering eagle populations have remained stable for the past 10 years. Immatures comprised 35% of the population in 1975-76 and 33% in 1976-77. While Black-tailed jackrabbits are the primary food source of wintering eagles in western Utah, other mammalian carrion serve as supplementary food items. Eagles utilized 4 communal night roosts. Three day communal roosts were located on south facing slopes. The social existence of Bald …

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