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Annotated Checklist Of Mammals Of The Yucatán Peninsula, México. Ii. Rodentia, J. Knox Jones Jr., Hugh H. Genoways, Timothy E. Lawlor

University of Nebraska State Museum: Mammalogy Papers

The Yucatán Peninsula, as encompassed in this series of papers, includes the Mexican states of Campeche and Yucatán, and the Federal Territory of Quintana Roo. This region is a low-lying plain that rises gently in elevation from north to south. It is surrounded on three sides by water and bounded on the south by British Honduras (i.e. Belize), Guatemala, and the Mexican state of Tabasco. The vegetation of the peninsula increases in height from north to south and from the coast inland. Generally, forest to the north is xerophilic, but that of the southern part of the peninsula is tall, …

A Survey Of The Herpetofauna Of The Upper Lick Fork Watershed, Rowan County, Kentucky, Ronald A. Bertram

Morehead State Theses and Dissertations

A thesis presented to the faculty of the School of Sciences and Mathematics at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science in Biology by Ronald A. Bertram on April 3,1974.

End Matter, Vol. 19 No. 4

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Front Matter, Vol. 19 No. 4

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

End Matter, Vol. 19 No. 3

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Front Matter, Vol. 19 No. 3

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

A Comparison Of Meteorologic Measurements From Irrigated And Non-Irrigated Plots, Provo, Ut, 1970–1972, Ferron L. Andersen, Phil D. Wright, J. Carl Fox

Brigham Young University Science Bulletin, Biological Series

A comparative study of micrometeorologic conditions on irrigated and non-irrigated pasture plots was conducted at Provo, Utah, from 1970 to 1972. Daily measurements were taken of the following: precipitation cither as rain or snow, new snowfall and total snow depth during the winter; relative humidity in a standard weather shelter; number of hours at maximum relative humidity; cloud cover each morning; potential evaporation; total wind 1 m above ground level; temperature extremes in a standard weather shelter; and temperatures both on irrigated and non-irrigated plots with sensing devices located 5 cm beneath soil surface under grass cover, at soil surface …

A Taxonomic Study Of The Western Collared Lizards, Crotaphytus Collaris And Crotaphytus Insularis, Nathan M. Smith, Wilmer W. Tanner

Brigham Young University Science Bulletin, Biological Series

The heterogeneous nature of the collared lizards west of the Colorado River prompted this study. Samples from known populations of C. c. auriceps, C. c. baileyi, and C. c. fruscus were used as a base for defining the western populations. External morphology and cranial morphology were compared by cluster, canonical, and discriminant analyses.

Results of these analyses show a western complex of four populations which are distinct from the three base populations of the collaris complex. Members within the western complex are distinguishable with at least 90 percent reliability by discriminant analysis. Because of intergradation patterns seen in western Sonora, …

Oregon's Nutria Problem, Lee W. Kuhn, E. Paul Peloquin

Vertebrate Pest Conference Proceedings: 6th (1974)

The nutria or coypu, Myocastor coypus, is a large semi-aquatic rodent that superficially resembles an overgrown muskrat or a stunted beaver. They were introduced into Oregon from about 1930 to the 1950s. At one time Oregon had more than 600 fur farmers raising these animals for fur; now there are none. Some animals escaped and many others were released into the wild when it became apparent that pelt values were nonexistent and production costs greatly exceeded profits. Being prolific and quite mobile the nutria quickly spread through much of western Oregon. By the 1960s damage to agricultural crops was …

End Matter, Vol. 19 No. 2

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Taxonomy Of The Genus Chloris (Gramineae), Dennis E. Anderson

Brigham Young University Science Bulletin, Biological Series

This study is a worldwide taxonomic treatment utilizing endomorphic characters such as cytology, histology, and embryology, in addition to the traditional exomorphic features. New chromosome numbers and histological information are reported. Relationships between Chloris and other genera in the Chlorideae are discussed. A total of 56 species is recognized in the genus; each is described and illustrated. Complete synonymies are included as well as a list of unidentified or rejected names. Distributions and maps are given for each species, along with lists of specimens examined during studies at various herbaria. Reports of field studies involving introgression among certain species are …

Front Matter, Vol. 19 No. 2

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Quail Music: The Complex Calls Of A Bird Contain Clues To Its Evolution, Paul A. Johnsgard

Papers in Ornithology

Ethological research has revealed that the vocal communications of birds are highly specialized behavioral adaptations that can shed light on evolutionary processes. The calls of the quails of the New World are a good example. This group of birds includes some thirty species, about half of which are limited to the tropical forests of Central and northern South America. The other species are North American, ranging as far north as southern Canada. Morphological evidence favors the view that the most generalized, or “primitive,” of these species are the tree quails of Mexico’s moist mountain forests. The more open-country and arid-adapted …

A New Vespertilionine Bat From The Barstovian Deposits Of Montana, John F. Sutton, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

During the 1972 field season, a small collection of micromammals was obtained from the Anceney Local Fauna located 13 miles west of Bozeman, Gallatin County, Montana. The fauna is Barstovian in age (Upper Miocene) and is preserved in an ash-filled channel deposit in the Madison Valley Formation (Dorr, 1956). A single partial jaw of a chiropteran was recovered along with numerous bones and teeth of other mammals, birds, amphibians, and reptiles. The jaw is complete from incisors back to the level of the m2. Examination of the jaw and comparisons with Recent and fossil chiropterans has convinced us that it …

Kentucky Warbler (Vol. 50, No. 1), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.

Mayflies, Or Ephemeroptera, Of West Virginia With Emphasis On The Nymphal Stage, Gerald M. Faulkner

Theses, Dissertations and Capstones

This thesis presents the first detailed study of the Ephemeroptera of West Virginia. Eight hundred twelve cites were collected with five hundred eight yielding mayfly specimens. Twelve families are represented including twenty-seven genera and one hundred fifteen species. Four new species are reported along with seventy-seven state records and five hundred twelve county records. Distributional trends of species collected from four or more counties are proposed along with distributional maps on all species reported.

Quantitative Determination Of Trace Metals In Two Species Of Fish In The Cannon River, Robert E. Nesse, Jeff A. Elzinga

Journal of the Minnesota Academy of Science

ABSTRACT - Samples of fish were taken from three stations along the Cannon River and comparatively analyzed for concentrations of Copper and Mercury in their muscle tissue by atomic absorption spectrophotometry. Samples from different stations showed a difference in metal concentration.

Front Matter, Vol. 19 No. 1

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Ichthyofaunal Diversification And Distribution In Jane's Creek Watershed, Randolph County, Arkansas, Cheryl Lynn Fowler, George L. Harp

Journal of the Arkansas Academy of Science

The purposes of this study were to determine the qualitative and quantitative distribution of fishes in the Jane's Creek watershed. Jane's Creek is a clear, spring-fed Ozark stream in northeastern Arkansas. A knowledge of the ichthyofauna of this stream prior to a long-range impoundment is of significance to the natural history of Arkansas. Jane's Creek and its tributaries were found to be alkaline, with no measurable turbidity, and to have low levels of carbon dioxide. Dissolved oxygen values ranged from 6.1 to 16.0 ppm. Only slight differences in physicochemical conditions were noted among stations and between pool and riffle areas …

The Development Of The Eeg In The Gerbil, Susan Bonner

Theses Digitization Project

No abstract provided.

Fisheries Report No 15 - The Western Rock Lobster Fishery 1972 - 1973, G. R. Morgan, E H. Barker

Fisheries Research Reports

The fishery for the western rock lobster* is one of the most important single fisheries in Australia and an important export earner for the State. The fishery is governed by a complex set of regulations which have been reviewed by Bowen (1971) and which are designed to limit the total effort to acceptable levels and to enforce a legal minimum size. It is thus important to constantly monitor the state of the fishery both to ensure that the effort is remaining within the accepted limits and that the regulations are adequately performing their function of maintaining reasonably stable catches. Inherent …

Ua66/1/2 Scrapbook, Wku Ogden College Of Science & Engineering

WKU Administration Documents

Scrapbook of clippings, press releases, photographs and other items related to the history of Ogden College of Science & Technology from 1961 to 1974.

Review Of Curassows And Related Birds, Paul A. Johnsgard

Papers in Ornithology

To contemplate the appearance of a new book dealing for the first time with an exhaustive coverage of an entire avian family is to evoke an excitement that is all too rare an occurrence for most ornithologists. This excitement is enhanced when the bird group is one of the least studied and yet, evolutionarily speaking, most significant of the galliform families, and when the authors are as well known and highly respected as Delacour and Amadon. Anticipation reaches its apogee when the contributing artists are as competent as Albert E. Gilbert, George M. Sutton, and David Reid-Henry. After reading the …

Development Of A Selective Bait For Rabbits, A J. Oliver, S. H. Wheeler

Journal of the Department of Agriculture, Western Australia, Series 4

It has long been recognised that a means of killing rabbits selectively in the presence of stock would be a major advance in rabbit control. It would enable a whole farm to be treated for rabbit control at one time, saving operational costs and cutting down reinfestation of rabbits into treated areas from untreated areas.

A literature search and some pilot trials indicated that indandione derivatives were more toxic to rabbits than to ruminants.

Pindone (2- pivalyl-l,3-indandione) was selected for evaluation.

Annual ('Wimmera') Ryegrass Toxicity, Geoffrey A. Pearce, O. M. Goss, P. H. Berry, J. L. Wise

Journal of the Department of Agriculture, Western Australia, Series 4

Because annual ryegrass is one of the most widespread pasture plants in Western Australia, annual ryegrass toxicity is a threat to livestock in many agricultural areas—even though the area now affected is small.

The problem is being intensively studied by the Department of Agriculture and a working group has been set up to investigate potential control measures.

In this article the group reviews the problem and reports progress in its investigations to the end of 1973.

Effects Of Mississippi Delta Flooding On Spider Populations, Peggy Rae Dorris

Journal of the Arkansas Academy of Science

The Mississippi Delta flooded in the spring of 1973. Spider collections made in a Delta area of Mississippi in 1972 are compared with those made in 1973 during the flood and after it subsided. Because many egg cases and immature and mature spiders were destroyed by the flood, the spider population was diminished.

Effects Of Fungus-Fermented Soybeans On Broiler Growth And Life Cycle Performance Of Coturnix Quail, Cheong Choo Chah

Electronic Theses and Dissertations

Despite the extensive data that have accumulated on the detrimental effect of molds on the growth of farm animals, very little is known as to the beneficial role of fungi in animal feed. Recent studies at South Dakota State University research laboratories revealed, however, that only 164 of 392 strains of Aspergilli were found to be toxic. When the cultures were grown on sterile soybeans or wheat, some of the tested cultures exerted positive effects on growth of chicks and mice. Hence, the investigations reported herein were initiated to obtain further information on those cultures beneficial to chick performance and …

In Vitro And In Vivo Evaluation Of Protecting Whey Protein Concentrate For Ruminants, David Rodriguez Maltos

Electronic Theses and Dissertations

In experiment I a series of in vitro buffer and rumen fermentation studies were conducted to evaluate protein solubility at pH 6.8 and pH 2.5 (with pepsin) and ammonia production from whey protein concentrates (WPC, 55% protein) treated with 0, .25, .5, 1.0, and 3% formaldehyde; 1, .5, 1.0, 2.0, 3.0, and 6% tannic acid; and 0, 1, 2, and 3 hr of heat treatment at 104 C. Protein solubility and ammonia production from casein treated with 0, .5, 1.0, and 3% formaldehyde and 0, .5, 1.0, and 3% tannic acid were also studied. All levels of formaldehyde treatment of …

Light And Electron Microscope Study Of The Mitotic Apparatus Of The Ring-Legged Earwig, Euborellia Annulipes (Lucas), Vonnie R. Prentice, William L. Evans

Journal of the Arkansas Academy of Science

The mitotic apparatus in dividing cells of the ring-legged earwig is composed of the cell center or pole, chromosomal fibers, continuous fibers, and chromosomal and background structure. Parts from cellular elements such as Golgi membranes, endoplasmic reticulum, and nuclear envelope as well as whole mitochondria associate with the spindle microtubules to produce the diffraction pattern of the spindle fibers as seen with the light microscope. The microtubules of the chromosomal fibers attach independently and demonstrate the diffuse nature of the centromere or polycentric condition of the chromosomes.

New Species Of American Bark Beetles (Scolytidae, Coleoptera), Stephen L. Wood

Brigham Young University Science Bulletin, Biological Series

The following 156 species of American Scolytidae are described as new to science: Cnesinus reticulus (Venezuela), C. beaveri (Brazil), C. teretis (Venezuela), C. alienus (Venezuela), C. deperditus (Colombia), C. fulgens (Venezuela), C. fulgidus (Colombia), C. lucaris (Venezuela), C. triangularis (Colombia), C. brighti (Mexico), C. coracinus (Mexico), Bothrosternus lucidus (Brazil), Hylastes niger (Mexico), Xylechinus mexicanus (Mexico), Phloeotribus nanus (Brazil), Chramesus corniger (Mexico), Ch. disparilis (Mexico), Ch. variabilis (Mexico), Ch. microporosus (Mexico), Ch. aquilus (Mexico), Ch. wisteriae (Mississippi), Ch. marginatus (Mexico), Carphoborus piceae (Oregon), Carphobius cupressi (Guatemala), Cladoctonus atrocis (Brazil), Scolytodes canalis (Mexico), S. costabilis (Mexico), Pseudothysanoes contrarius (Mexico), P. recavus (Mexico), …