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Articles 9631 - 9660 of 10983
Full-Text Articles in Entire DC Network
Grass Spider Microhabitat Use In Organ Pipe Cactus National Monument, Arizona, Mark Robert Deutschman
Grass Spider Microhabitat Use In Organ Pipe Cactus National Monument, Arizona, Mark Robert Deutschman
Great Basin Naturalist
The grass spider (Agelena naevia), commonly found in Organ Pipe Cactus National Monument, Arizona, uses rodent burrows located under a shrub canopy more frequently for web construction than burrows located in the open. The average number of prey available in canopy microhabitat was greater than in open microhabitat, and unequal prey abundance may explain spider microhabitat use.
Poa L. In New Mexico, With A Key To Middle And Southern Rocky Mountain Species (Poaceae), Robert J. Soreng
Poa L. In New Mexico, With A Key To Middle And Southern Rocky Mountain Species (Poaceae), Robert J. Soreng
Great Basin Naturalist
The 23 species and subspecies of Poa that occur in New Mexico are described in detail. Collection locations of these species in New Mexico are given in dot distribution maps. A descriptive key to the species of Poa that occur in Arizona, Colorado, Utah, Wyoming, and New Mexico, including general distribution for species not in New Mexico, is provided. Three new nomenclatural combinations are proposed: Poa arctica subsp. aperta; P. fendleriana subsp. longiligula; P. f. subsp. albescens. Subgeneric affinities of species of the southern Rocky Mountain region are indicated. Of the 25 species that occur within the …
My Life, Hans Banziger
My Life, Hans Banziger
Swiss American Historical Society Newsletter
One of my very young students having gotten once the task to write on his short lifetime introduced his witty essay with the remark that curricula vitae reminded him always of necrologies. He went on, using the fiction of a minister's sermon, to describe his career: "A promising young life came abruptly to an end; Karl X had wanted to become a teacher, but his grades were not good enough ... ". Thus, you might understand, why I myself hesitated a little when Marianne Burkhard asked me to write about my life. Memoirs always sound a little bit sad. But …
Host-Parasite Studies Of Trichophrya Infesting Cutthroat Trout (Salmo Clarki) And Longnose Suckers (Catostomus Catostomus) From Yellowstone Lake, Wyoming, R. A. Heckmann, T. Carroll
Host-Parasite Studies Of Trichophrya Infesting Cutthroat Trout (Salmo Clarki) And Longnose Suckers (Catostomus Catostomus) From Yellowstone Lake, Wyoming, R. A. Heckmann, T. Carroll
Great Basin Naturalist
Trichophrya sp. (Protozoa) on the gills of cutthroat trout (Salmo clarki) and longnose suckers (Catostomus catostomus) was studied using light and electron microscopy and tracer techniques. All cutthroat trout, 14 cm in total length and above, from Yellowstone Lake, Yellowstone National Park, Wyoming, were infested with the suctorian. No trichophryans were found on fry or fingerling cutthroat trout. Sixty percent of the examined longnose suckers from the same location were infested. Light microscopy disclosed extensive pathology of gill epithelium in longnose suckers infested with Trichophrya that was not observed for infested cutthroat trout. Electron micrographs show …
Utah's Rare Plants Revisited, Stanley L. Welsh, L. Matthew Chatterley
Utah's Rare Plants Revisited, Stanley L. Welsh, L. Matthew Chatterley
Great Basin Naturalist
Presented is a current evaluation of the status and distribution of Utah's rare plant species, including those officially listed as endangered or threatened, those under review for listing, those recommended by the Utah Native Plant Society, and those which recently have been removed from consideration. Taxa are discussed alphabetically. Information on status, distribution, habitat, elevation, and specimens deposited at Brigham Young University are included in the discussion of each species. Maps showing the state distribution of each listed or candidate plant are also provided. New combinations include Dalea flavescens (Wats.) Welsh var. epica (Welsh) Welsh & Chatterley and Schoenerambe suffrutescens …
Pollinators Of Astragalus Monoensis Barneby (Fabaceae): New Host Records; Potential Impact Of Sheep Grazing, Evan A. Sugden
Pollinators Of Astragalus Monoensis Barneby (Fabaceae): New Host Records; Potential Impact Of Sheep Grazing, Evan A. Sugden
Great Basin Naturalist
Important bee species inhabiting the study area are listed, including those observed and collected foraging on Astragalus monoensis, a California rare plant. The significance of each species as a potential pollinator is assessed, based on frequency of occurrence in collecting, observed and published host plant records, and morphology. Three pollinator categories are proposed: observed and/or collected on the plant, probable visitors, and possible visitors. New host plant records for these species are listed. Current sheep grazing practices in the A. monoensis habitat endanger pollinators in four ways: (1) destruction of potential nest sites, (2) destruction of existing nests and …
Growth And Reproduction Of The Flannelmouth Sucker, Catostomus Latipinnis, In The Upper Colorado River Basin, 1975–76, Charles W. Mcada, Richard S. Wydoski
Growth And Reproduction Of The Flannelmouth Sucker, Catostomus Latipinnis, In The Upper Colorado River Basin, 1975–76, Charles W. Mcada, Richard S. Wydoski
Great Basin Naturalist
Growth rates estimated using the scale annuli of flannelmouth sucker, Catostomus latipinnis, did not differ between fish collected from the Gunnison and Colorado rivers, and the Green and Yampa rivers. However, body condition and fecundity were significantly greater in the former population. Age of first maturity for male and female fish from all rivers was IV; and most fish were mature by age VII. The smallest mature female collected was 405 mm, and the smallest mature male was 391 mm total length. Fecundity ranged from 4,000 ova in fish 450 mm long to 40,000 ova in a 500-mm fish: …
Nesting And Predatory Behavior Of Some Tachysphex From The Western United States (Hymenoptera: Sphecidae), Nancy B. Elliott, Frank E. Kurczewski
Nesting And Predatory Behavior Of Some Tachysphex From The Western United States (Hymenoptera: Sphecidae), Nancy B. Elliott, Frank E. Kurczewski
Great Basin Naturalist
The first published observations on the nesting and predatory behavior of Tachysphex antennatus Fox, T. occidentalis Pulawski, T. williamsi Bohart, T. yolo Pulawski, T. alpestris Rohwer, T. clarconis Viereck, T. apricus Pulawski, and T. cockerellae Rohwer are presented herein. Also included are host and behavioral data on T. tarsatus (Say), T. apicalis fusus Fox, T. similis Rohwer, T. ashmeadii Fox, and T. mundus exsectus Fox.
New Records And Comprehensive List Of The Algal Taxa Of Utah Lake, Utah, Usa, Samuel R. Rushforth, Lorin E. Squires
New Records And Comprehensive List Of The Algal Taxa Of Utah Lake, Utah, Usa, Samuel R. Rushforth, Lorin E. Squires
Great Basin Naturalist
Utah Lake is a slightly saline ecosystem containing more than 700 algal taxa. During the past decade a total of 106 algal taxa has been found that has not previously been reported in this water. These new records are reported herein, together with a comprehensive listing of all algal taxa reported from Utah Lake to date.
Aspects Of The Biology Of The Flathead Chub (Hybopsis Gracilis) In Montana, William Gould
Aspects Of The Biology Of The Flathead Chub (Hybopsis Gracilis) In Montana, William Gould
Great Basin Naturalist
Mature flathead chubs (Hybopsis gracilis) were present in mid-July and mid-August collections from the Musselshell River, Montana. The estimated numbers of mature eggs present in eight females were 360–753 per female. The smallest mature female and male collected were 113 and 123 mm in total length, respectively. The male to female sex ratio in collections was about 1:1. Only small differences were detected among the length–weight relationships of males and females and samples taken from various seasons and localities in Montana. Observations on size groups, fish associates, and habitat characteristics of flathead chubs are presented.
Size Selection Of Food By Cutthroat Trout, Salmo Clarki, In An Idaho Stream, William D. Skinner
Size Selection Of Food By Cutthroat Trout, Salmo Clarki, In An Idaho Stream, William D. Skinner
Great Basin Naturalist
The mean size of food and amount of food consumed by cutthroat trout from Palisades Creek in southeastern Idaho increased with trout length. Number of organisms of terrestrial origin, number of aquatic larvae, number of ants, and number of berries from redstem dogwood were related to trout length. The size range and number of taxa consumed increased with trout size, indicating that as trout get larger, they broaden their feeding menu. The minimum size of food consumed was relatively constant for all trout, but larger trout appeared to feed more from the stream bottom. Trout may have a minimum length …
Dealing With Infertility Problems, Robert Taylor, Jayne Edgren Taylor
Dealing With Infertility Problems, Robert Taylor, Jayne Edgren Taylor
Issues in Religion and Psychotherapy
Presented at the AMCAP Convention 5 October 1984.
Mormon Forms Of Psychopathology, Louis A. Moench
Mormon Forms Of Psychopathology, Louis A. Moench
Issues in Religion and Psychotherapy
Presented at the AMCAP Convention 5 October 1984.
Strategic Family Therapy And Mormon Thought, Marybeth Raynes
Strategic Family Therapy And Mormon Thought, Marybeth Raynes
Issues in Religion and Psychotherapy
Book review of Strategic Family Therapy and Behind the One-Way Mirror: Advances in the Practice of Strategic Therapy, by Cloe Madanes.
Presented at the AMCAP Convention 4 October 1984.
Heritage Of Nightmares: Therapy For The Adult Woman Molested In Childhood, Gerry Hanni
Heritage Of Nightmares: Therapy For The Adult Woman Molested In Childhood, Gerry Hanni
Issues in Religion and Psychotherapy
Presented at the AMCAP Convention 5 October 1984.
The Didactics Of Semantization In Historical Perspective, Wilfried Cecoo
The Didactics Of Semantization In Historical Perspective, Wilfried Cecoo
Deseret Language and Linguistic Society Symposium
No abstract provided.
An Information Theoretic Interpretation Of The Variable Rule, Matthew R. Sorenson
An Information Theoretic Interpretation Of The Variable Rule, Matthew R. Sorenson
Deseret Language and Linguistic Society Symposium
No abstract provided.
Analogical Descriptions Of Variation, Royal Skousen
Analogical Descriptions Of Variation, Royal Skousen
Deseret Language and Linguistic Society Symposium
No abstract provided.
Characteristics Of The Environment Surrounding Online Information Services In Japan, Kimio Hosono
Characteristics Of The Environment Surrounding Online Information Services In Japan, Kimio Hosono
Journal of East Asian Libraries
No abstract provided.
Nutrients In Carex Exserta Sod And Gravel In Sequoia National Park, California, Raymond D. Ratliff
Nutrients In Carex Exserta Sod And Gravel In Sequoia National Park, California, Raymond D. Ratliff
Great Basin Naturalist
Nutrients in soil covered by Carex exserta sod and in adjacent unvegetated gravel areas were compared at Siberian Outpost, Sequoia National Park, California. The comparisons were part of a study to learn if Carex exserta meadow can be reestablished and if herbaceous cover on gravel areas can be increased. Grazing capacity and aesthetic appeal of denuded areas would be improved by better vegetative cover. The sod had higher concentrations of calcium, copper, iron, magnesium, manganese, nitrogen, potassium, and zinc than did the gravel areas. And it had a higher soil pH and percent organic matter. Sod and gravel did not …
Factors Influencing Nesting Success Of Burrowing Owls In Southeastern Idaho, Richard S. Gleason, Donald R. Johnson
Factors Influencing Nesting Success Of Burrowing Owls In Southeastern Idaho, Richard S. Gleason, Donald R. Johnson
Great Basin Naturalist
A burrowing owl (Athene cunicularia) population nesting on the Idaho National Engineering Laboratory (INEL) in southeastern Idaho utilized burrows excavated by badgers (Taxidea taxus) or natural cavities in lava flows as nesting sites. The size of the population was small (N = 13–14 pairs) in relation to the number of available nesting sites, suggesting that factors other than burrow availability limited this population. Rodents and Jerusalem crickets (Stenopelmatus fuscus) represented the primary prey utilized during the nesting season. This population demonstrated both a numerical (brood size) and functional (dietary) response to a decrease in …
Mites (Excluding Chiggers) Of Mammals Of Oregon, John O. Whitaker Jr., Chris Maser
Mites (Excluding Chiggers) Of Mammals Of Oregon, John O. Whitaker Jr., Chris Maser
Great Basin Naturalist
New information on the ectoparasitic mites of the following species of mammals from Oregon is presented: (1) pika—Ochotona; (2) squirrels—Eutamias, Spermophilus, Tamiasciurus; (3) grasshopper mouse—Onychomys; (4) woodrats—Neotoma; (5) muskrat—Ondatra; (6) jumping mice—Zapus; and (7) weasels—Mustela, Spilogale. New records of species for the state and new host records are also given. Finally, a cross-referenced list of all known mites of wild mammals from Oregon is presented.
Insect Communities And Faunas Of A Rocky Mountain Subalpine Sere, David J. Schimpf, James A. Macmahon
Insect Communities And Faunas Of A Rocky Mountain Subalpine Sere, David J. Schimpf, James A. Macmahon
Great Basin Naturalist
Insect faunas and communities are characterized for herbaceous and tree canopy layers in meadow, aspen, and spruce/fir stages of a northern Utah sere. A greater percentage of species were in Thysanoptera in both aspen strata, and a greater percentage of individuals were in Lepidoptera in aspen canopy. Our sites were quite similar to a wide variety of other terrestrial sites in their distribution of species or individuals among orders or metamorphosis categories. Insects/m2 peaked in the aspen stage, but declined in the herbaceous layer with succession. Insects/plant biomass in the herbaceous layer increased with succession. Insects/m2 and insects/foliar …
Patterns Of Macroinvertebrate Colonization In An Intermittent Rocky Mountain Stream In Utah, J Vaun Mcarthur, James R. Barnes
Patterns Of Macroinvertebrate Colonization In An Intermittent Rocky Mountain Stream In Utah, J Vaun Mcarthur, James R. Barnes
Great Basin Naturalist
Colonization of macroinvertebrates in a headwater mountain stream was monitored using basket and Surber samplers. Taxa showed differences in colonization ability based both on dispersal ability and feeding strategy. Collector-gatherer feeding groups that could actively enter the water, i.e., Baetis mayflies, were the first organisms to colonize bare or new substrate. The slowest colonizers were heptageniid mayflies that colonized primarily from upstream migration. All organisms examined increased drifting behavior in response to decreases in discharge.
Checklist Of The Mosses Of Grand Teton National Park And Teton County, Wyoming, John R. Spence
Checklist Of The Mosses Of Grand Teton National Park And Teton County, Wyoming, John R. Spence
Great Basin Naturalist
A preliminary checklist of the mosses of Grand Teton National Park and Teton County, comprising 106 species, is presented. The following nine species are reported as new to Wyoming: Sphagnum squarrosum Crome, Atrichum undulatum (Hedw.) P.-Beauv., Tortella humilis (Hedw.) Jenn., Bryum bicolor Dicks., Pohlia obtusifolia (Brid.) L. Koch, Calliergon sarmentosum (Wahlenb.) Kindb., Eurhynchium oreganum (Sull.) Jaeg., Plagiothecium piliferum (Sw. ex C.J. Hartm.) B.S.G. and Lescuraea stenophylla (Ren. & Card.) Kindb.