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The Determination Of Thiamin And Its Derivatives In Brain Tissue Of Control, Thiamin-Deficient, Oxythiamin- And Pyrithiamin-Treated Rats, David S. Murdock

Theses and Dissertations

The determination of total thiamin, free thiamin, thiamin di phosphate (TDP) plus thiamin triphosphate (TTP), and total α- hydroxyethylthiamin (HET) levels in rat brain in control, deficient, oxythiamin- (OTH) and pyrithiamin- (PTH) treated rats was accomplished. It was found that the TDP + TTP/thiamin ratio observed in the thiamin-deficient, OTH- and PTH-treated rats was constant and did not differ from the ratio observed in the control rat brains. The brain levels of TDP + TTP decreased to 39% and 12% of the control thiamin levels in deficient and PTH-treated rats respectively. The brain HET and TDP + TTP levels of …

Helminths Of Sceloporus Lizards In The Great Basin And Upper Colorado Plateau Of Utah, Richard C. Pearce, Wilmer W. Tanner

Great Basin Naturalist

Fifty-five Sceloporus lizards representing the four species occurring in Utah were dissected. For each lizard specimen and species, helminth parasites were tabulated and classified. New host and locality records were recorded. An appendix containing literature citations of reptilian parasitology for the American Southwest is provided.

An Unusual Population Of Spiders In Utah, Dorald M. Allred

Great Basin Naturalist

No abstract provided.

Front Matter, Vol. 33 No. 1

Great Basin Naturalist

No abstract provided.

Two New Species Of Gymnodamaeus From Colorado (Acarina: Cryptostigmata, Gymnodamaeidae), Tyler A. Woolley, Harold G. Higgins

Great Basin Naturalist

Gymnodamaeus plokosus and G. leurolomasus, n. spp., are described from soil at an ecological study site near Hayden, Colorado. Their relationship to allied species is discussed.

Miscellaneous Chromosome Counts Of Western American Plants—Ii, James L. Reveal, Eloise L. Styler

Great Basin Naturalist

Chromosome numbers are reported for 19 species of western American plants. Reports for previously uncounted species include Nitrophila mohavensis Munz and Roos, n = 18; Eriogonum contiguum (Reveal) Reveal, n = 16; Mentzelia leucophylla Brandeg., n = 18, and M. torreyi A. Gray, n = 12; Prunus virginiana L. var. melanocarpa (A. Nels.) Sarg., n = 8; Astragalus beatleyae Barneby, n = 11; Angelica kingii (S. Wats.) Coult. and Rose, n = 22; Gilia nyensis Reveal, n = 9; and Arnica parryi A. Gray var. sonnei (Greene) Cronq. in Ferris n = 19. New ploidy levels are reported in Oxystylis …

Some Helminths From Mink In Southwestern Montana, With A Checklist Of Their Internal Parasites, Delbert L. Barber, Lawrence L. Lockard

Great Basin Naturalist

Thirty-four percent of 100 mink examined from Gallatin and Madison counties, Montana, revealed the presence of Perostrongylus pridhami Anderson, 1962 (Anderson, 1963), in the lungs. This is the first report of P. pridhami in the United States. Thirteen percent of the mink were infected with Taenia mustelae Gmelin, 1790. This is the first report of T. mustelae in southwestern Montana. A checklist of internal parasites of Mustela vison is included.

Neartic Desert Decticidae (Orthoptera). Part Ii. A New Genus And Species From Arizona, Ernest R. Tinkham

Great Basin Naturalist

Platyoplus, n. gen., is erected for P. gilaensis, n. sp., from the Gila Mountains, Yuma Co., Arizona. The method of preservation for these large, soft-bodied insects is described.

Remarks About This Newsletter, Heinz K. Meier

Swiss American Historical Society Newsletter

Due to necessity as well as a series of unforeseeable circumstances, I was the only officer of the Swiss American Historical Society to attend our annual meeting in New Orleans. This is the reason why the report about the meeting is written by me rather than the secretary or another officer.

Full Issue

Swiss American Historical Society Newsletter

No abstract provided.

The History Of Medical Relations Between Switzerland And The Usa, Erwin H. Ackerknecht

Swiss American Historical Society Newsletter

When in a symposium concerning the medical relations of Switzerland to other countries reports are given on the relations of Swiss medicine to German, French, Italian, English and Austrian medicine, the reasons are obvious. But it might be at first sight surprising that the USA are added to this traditional list of neighbors. This surprise is partly a consequence of outdated technological and geographical thought. Actually, through the airplane, New York is as close to Zurich as by railroad are Hamburg or Paris. We should become conscious of this new situation. But partly doubts remain legitimate. Have the relations between …

A New Species Of Soil Mite From Western Colorado (Acari: Cryptostigmata, Pelopidae), Harold G. Higgins, Tyler A. Woolley

Great Basin Naturalist

A new species of soil mite from Hayden, Colorado, is described. This species, Peloptulus tanytrichosus, is the first representative of the genus in North America. The species is described, figured, and compared with P. foveolatus Hammer, 1961. Eight specimens were taken from different habitats, including aspen litter, scrub oak litter, and beneath greasewood and pepper grass.

A Checklist Of The Macroinvertebrates Of The Provo River, Utah, Parley V. Winger, Edward J. Peters, Michael J. Donahoo, James R. Barnes

Great Basin Naturalist

A checklist of the aquatic macroinvertebrate species from the Provo River, Utah, was compiled from field collections and from literature sources.

Seasonal Food Habits Of Barn Owls In Utah, Dwight G. Smith, Charles R. Wilson, Herbert H. Frost

Great Basin Naturalist

The food habits of a small colony of Barn Owls in central Utah were investigated from 30 January 1969 to 30 January 1970 to determine seasonal trends in prey species composition and abundance. An analysis of 783 pellets yielded 1845 prey individuals, of which mammals, primarily Microtus, were the most abundant during all seasons of the year. A wide variety of avian prey species revealed an opportunistic aspect of Barn Owl prey selection.

Germination Of Pinus Aristata Engelm., William H. Reid

Great Basin Naturalist

Seeds of Pinus aristata Engelm., bristlecone pine, from the type locality at the headwaters of Clear Creek in Colorado have a germination of 80 percent. Germination occurs within 10 days with or without vernalization. Scarified seeds are invaded by fungus and less than 10 percent germinate. Seedlings 10 and 180 days old do not survive exposure to −10C (14F) even when exposed to gradually decreasing temperatures to −4C (25F) for five weeks before treatment. Rapid germination, scarification mortality, and lack of cold hardness in seedlings work against the reproduction of bristlecone pine.

Aquatic Phycomycetes Of Lily Lake, Utah, Hugh M. Rooney, Kent H. Mcknight

Great Basin Naturalist

During the ice-free period from May to November on two successive summers water molds were collected on 14 different substrata placed in Lily Lake, a subalpine bog lake in the Uinta Mountains of Utah. Twenty-five collections yielded thirty-four species in 20 genera, 11 families, and 6 orders of aquatic Phycomycetes. Correlation of frequency presence of the species reported with physical and chemical characteristics of the lake showed that the number of species collected increased with an increase in water temperature and a decrease in oxygen content during June to August, reaching a peak in late July. Rhipidium americanum Thaxter (100 …

End Matter, Vol. 32 No. 4

Great Basin Naturalist

No abstract provided.

Flights Of The Western Thatching Ant, Formica Obscuripes Forel, In Nevada (Hymenoptera: Formicidae), William H. Clark, Peter L. Comanor

Great Basin Naturalist

Observations indicate that Formica obscuripes flies earlier in Nevada than in other parts of the country where the flights have been recorded. The alate males are the first to emerge from the nest. These are eventually succeeded by alate females, and finally only females are seen. F. obscuripes flew during periods when air temperatures were 20.5–26.5 C, when relative humidities were about 18%, and when solar input was about 1.35 langleys. Slight winds approaching 3 mph did not keep the ants from flying but may have influenced their direction of flight.

The nests of F. obscuripes observed near Reno differ …

Front Matter, Vol. 32 No. 4

Great Basin Naturalist

No abstract provided.

Notice Of A New Report Entitled "Systematics Collections: A National Plan . . .", J. C. Dickinson

Great Basin Naturalist

No abstract provided.

Nearctic Desert Sand Dune Orthoptera, Part Xiv. A New Eremopedes (Decticidae), Ernest R. Tinkham

Great Basin Naturalist

A new species, Eremopedes kelsoensis, is described from the Kelso Sand Dunes, San Bernardino Co., California, with notes on its biology, song, host plants, desert distribution, orthopteran associates, and a key to species in the genus.

Index [And Table Of Contents] To Volume 32

Great Basin Naturalist

No abstract provided.

The Effect Of Insect Damage On Indian Ricegrass (Oryzopsis Hymenoides) In Western Utah, Luis S. Guerra

Theses and Dissertations

Indian ricegrass at the Desert Range Experiment Station forty-seven miles west of Milford, Utah, is damaged by the larvae of Coenchroa illibella, Diatrae sp. and Typoceris ceraticornis, the latter being the most destructive. The biology of the insects and the extent of damage inflicted are discussed. Uninfested plants produced more new stems than infested plants. Plants having a basal diameter of 4 to 6.9 cm and 7 to 9.9 cm were the most frequently infested and, consequently, the most severely damaged.

On Improved Wkb (Uniform Asymptotic) Quantum Conditions, Dunham Corrections, The Langer Modification, And Rkr Potentials, Russell T. Pack

Faculty Publications

An improvement to the WKB quantum condition for the rotation-vibration levels of diatomic molecules, known empirically to give RKR potentials of increased accuracy and to account for the Dunham correction Y00, is derived using uniform asymptotic methods. The role of the Langer transformation in this problem is also discussed.

Nearctic Desert Decticidae (Orthoptera), Part I. A New Genus From California, Ernest R. Tinkham

Great Basin Naturalist

No abstract provided.

Front Matter, Vol. 32 No. 3

Great Basin Naturalist

No abstract provided.

End Matter, Vol. 32 No. 3

Great Basin Naturalist

No abstract provided.

Notes Concerning Mexican Saldidae, Including The Description Of Two Species (Hemiptera), John T. Polhemus

Great Basin Naturalist

A complete description and discussion of the genus Enalosalda Polhemus is given, and the males of E. Mexicana Van Duzee and Saldula hispida are described. Saldula saxicola and Saldula durangoana are described as new. Saldula suttoni Drake and Hussey is transferred to loscytus (n. comb.); Salda hispida Hodgden is considered a subspecies (n. comb.) of Saldula sulcicollis Champion.

Front Matter, Vol. 17 No. 3

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Fleas Of Venezuela, Vernon J. Tipton, Carlos E. Machado-Allison

Brigham Young University Science Bulletin, Biological Series

Forty-three species of fleas were collected in Venezuela by personnel of the Smithsonian Venezuelan Project. Currently there are fifty-two species of fleas known from Venezuela. Four new taxa are described: Hormopsylla cryptica, Ctenidiosomus perplexus, Adoratopsylla antiquorum rara and Adoratopsylla antiquorum recta. The females of Adoratopsylla antiquorum discreta Jordan and Rothschildopsylla noctilionis (Costa Lima) are described. The families Stephanocircidae (Cleopsylla, Craneopsylla, Plocopsylla, Sphinctopsylla) and Pygiopsyllidae (Ctenidiosomus) are reported from Venezuela for the first time. Two male specimens of the genus Orchopeas constitute the first record of this genus in South America and records of species of the …