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Book Review: Mammals Of The Northern Great Plains By J. K. Jones, Jr., D. M. Armstrong, R. S. Hoffmann, And C. Jones, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

Mammals of the Northern Great Plains is an attractive clothbound book that comes in a colored dust jacket showing a female pronghorn walking in the snow. The book is produced in a double-column format set in a 47½ by 32½ pica typebed (I personally do not like the unjustified right-hand margins on both columns). The book contains 206 figures most of which are set in a single column. Of the 206 figures, 80 are distribution maps, 104 are photographs mostly of living animals, 20 are drawings used to illustrate keys or points made in the text, and two are maps …

Molecular Genetic Characterization Of The Rd-114 Gene Family Of Endogenous Feline Retroviral Sequences, Roger H. Reeves, Stephen J. O'Brien

Biology Faculty Articles

RD-114 is a replication-competent, xenotropic retrovirus which is homologous to a family of moderately repetitive DNA sequences present at ca. 20 copies in the normal cellular genome of domestic cats. To examine the extent and character of genomic divergence of the RD-114 gene family as well as to assess their positional association within the cat genome, we have prepared a series of molecular clones of endogenous RD-114 DNA segments from a genomic library of cat cellular DNA. Their restriction endonuclease maps were compared with each other as well as to that of the prototype-inducible RD-114 which was molecularly cloned from …

Body Size And Food Size In Freshwater Zooplankton, Kenneth Bogdan, John Gilbert

Dartmouth Scholarship

We used double-label liquid scintilation techniques to measure the efficiencies with which eight different sized zooplankton species ingested four celtypes relative to a standard celtype(Chlamydomonas). Efficiency ratios (ERs:clearancerateonceltypeX . clearancerateonChlam- ydomonas) on the three ultraplankton (<5 Iam in diameter) cels (a coccoid bacterium and the algae Synechococcus and Nannochloris) varied greatly among zooplankton species but were not correlated with zooplankton bodylength. Variation in ERs on a muchlarger(17x 14 um) algalcel(Cryptomonas)was only partly explained by zooplankton body length.

Demographic Analysis And Microhabitat Relationships Of A Small Mammal Community In Clearings Of The Great Dismal Swamp, Jean Ferguson Stankavich

Biological Sciences Theses & Dissertations

Small mammals were trapped for 14 months on two grids located within a powerline right-of-way in the Great Dismal Swamp National Wildlife Refuge. During 12,354 trap nights, individuals of 10 different species were captured. They included, from highest to lowest density, Reithrodontomys humulis, Ochrotomys nuttalli, Peromyscus leucopus, Blarina brevicauda, Synaptomys cooperi, Microtus pennsylvanicus, Microtus pinetorum, Sigmodon hispidus, Mus musculus and Oryzomys palustris. The demography (densities, reproduction, home range and dispersal) of each species was analyzed when possible. Most of the species were present in relatively low densities, with a number being captured only during the latter months of the study. …

Catalog Of The Recent Scandentia And Primates In The Carnegie Museum Of Natural History, Suzanne B. Mclaren, Duane A. Schlitter, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

The Section of Mammals, Carnegie Museum of Natural History, houses six specimens of Recent tree shrews and 611 specimens of Recent primates. The only family in the Order Scandentia is Tupaiidae. Primate families represented are Lemuridae, Lorisidae, Cebidae, Callitrichidae, Cercopithecidae, Pongidae, and Hominidae. For each specimen the following data are recorded: locality; date collected; catalog number; sex; age; nature of specimen; condition of specimen and comments. The latter category gives information on the condition of the skin and skeletal material, and gives information on the availability of the specimen.

Ua66/6 Brigadoon Nature Preserve Survey Phase I, Wayne Mason, Jeff Jenkins, Kenneth Nicely, Herbert Shadowen

WKU Administration Documents

A preliminary report of an ongoing survey on the mammals, birds, vascular plants, and fungi that have been recorded at the Brigadoon Nature Preserve from November, 1983 - September, 1984.

Sexual Differentiation Of The Rat Hypothalamus: An Evaluation Of Sexual Behavior And Hypothalamic Morphology Following Neonatal Manipulation, Michael C. Stamper

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 Michael C. Stamper on August 24, 1984.

Kentucky Warbler (Vol. 60, No. 3), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.

Toxicological Studies On Aquatic Contaminants Originating From Coal Production And Utilization: The Induction Of Tolerance To Silver In Laboratory Populations Of Fish And The Chronic Toxicity Of Nickel To Fish Early Life Stages, Wesley J. Birge, Jeffrey A. Black, James F. Hobson, Albert G. Westerman

KWRRI Research Reports

Aquatic toxicity studies were performed on two important coal-derived contaminants, silver and nickel. Silver was investigated with regard to metal-induced tolerance in laboratory populations of the fathead minnow (Pimephales promelas). Fish were exposed to acute silver concentrations following acclimation to sublethal exposures of this metal. Based on median lethal times (LT50), animals which had received 14 days prior exposure to 1.5 and 15 μg Ag/L were three to four times more resistant to silver than were previously unexposed organisms. This metal-induced resistance was not a sustained response. After organisms which had been acclimated to 15 μg/L had been transferred to …

Results Of The Alcoa Foundation-Suriname Expeditions. Ix. Bats Of The Genus Tonatia (Mammalia: Chiroptera) In Suriname, Hugh H. Genoways, Stephen L. Williams

University of Nebraska State Museum: Mammalogy Papers

Five species of Tonatia (bidens, brasilense, carrikeri, schulzi, and silvicola) are known to occur in Suriname. Tonatia bidens and silvicola are the largest in overall size (forearm length over 50 mm and greatest length of skull over 27.0 mm). However, T. bidens has a broader postorbital region (5.0 mm or more) and narrower mastoid region (less than 13.0 mm). The lower incisors of T. bidens are also noticeably broader than those of T. silvicola. These two species were found throughout most of the forested areas of Suriname. T. bidens displayed no secondary sexual …

Alcataenia Pygmaeus Sp. N. (Cestoda: Dilepididae) From The Whiskered Auklet, Aethia Pygmaea, In The Western Aleutian Islands, Alaska, With A Comment On The Genera Alcataenia And Rissotaenia, Eric P. Hoberg

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Alcataenia pygmaeus sp. n. is described from whiskered auklets, Aethia pygmaea (Gmelin), from the western Aleutian Islands, Alaska. It is distinguished from its congeners by the overall small size of the strobila and a combination of other characters. The rostellum is armed with 34-38 hooks that measure 41-49 µm in length. The cirrus sac is relatively short, 101-174 µm in length, and reaches or just crosses the poral osmoregulatory canals. There are 36-50 testes located entirely posterior to the female organs. The scolex is deeply embedded in the mucosal tissue of the duodenum of the host. This is the first …

Activity Levels Of Arboreal Rodents Peromysus And Ochrotomys Evaluated With Nest Cans In Seasonally Flooded Forests, John W. Walke

Biological Sciences Theses & Dissertations

The diversity and density of small mammals in the Dismal Swamp are believed to be small. To test this, four 1.96 ha grids were established and operated in the Dismal Swamp National Wildlife Refuge, from September 1981 to November 1982. Number 10 metal cans covered with plastic lids were placed as nest boxes at 0.5 to 1.5 m height on trees. A 2.5 cm hole allowed access by arboreal rodents, to each nest can. The activity level of the two arboreal rodents, Peromyscus leucopus and Ochrotomys nuttalli, was evaluated by observing types of activity ranging from presence of mice to …

Determinants Of Variation In Avian Mobbing Behavior, Charles Ray Chandler Jr.

Biological Sciences Theses & Dissertations

Using three combinations of two experimental stimuli, I initiated mobbing behavior in various species of birds. The objectives of this research were to test the effects of stimuli on mobbing, the predictions of the hypothesis that mobbing functions to drive a predator away, and the effect of other species and individuals on the mobbing behavior of a bird. Mobbing experiments were conducted in a variety of habitats and locations from January 1983 through February 1984.

Only 6.5% of all trials with the mount-only stimulus were successful in attracting birds. Tape-only and mount-and-tape stimuli were equally effective in attracting birds, but …

The Spatial And Temporal Distribution Of The Larvae Of Sympatric Pagurid Hermit Crabs (Decapoda, Anomura) In Virginian Estaurine And Coastal Waters, Philip Wesley Sadler

OES Theses and Dissertations

Thirteen stations were occupied at two - week intervals from May through September 1980 within the York River, lower Chesapeake Bay depths encompassing the entire water column.

Three species of pagurids were identified: Pagurus longicarpus, P. pollicaris, and P. annulipes. The larvae of P. annulipes had not been previously identified from Virginian waters. The shapes of the antennae of P. pollicaris and P. annulipes weredistinctive, allowing rapid identification of these larvae. The shapes of the uropods were found to be useful in distinguishingthe glaucothoe· of P. longicarpus from P. annulipes. The larvae of these species …

Life History Aspects Of Reithrodontomys Humulis In Southeastern Virginia, Michelle Cawthorn Chandler

Biological Sciences Theses & Dissertations

Reithrodontomys humulis, the eastern harvest mouse, is a small cricetid rodent which is common in old field communities in the eastern U.S. A live-trapping study was conducted in Suffolk, Virginia from March 1983 through February 1984 in order to learn the details of its life history and the vegetational characteristics which best describe its microhabitat. Specifically, population densities, trap-revealed survival times, home ranges, plant species composition of the study area, and vegetational structure were examined. In order to trap as many Reithrodontomys as possible, special traps which excluded animals weighing over 20 g were constructed. Densities of harvest mice …

Birds Of Lake Mcconaughy And The North Platte River Valley, Oshkosh To Keystone, Richard C. Rasche, Paul A. Johnsgard

Nebraska Bird Review

Cedar Point Biological Station was established in 1975 at a site approximately one mile below Kingsley Dam in Keith County, Nebraska. Since that time, summer ornithology classes have been periodically offered beginning in 1977 when it was taught by Dr. Stephen Fretwell. A variety of ornithologists have kept records of the summer birds of the area. Beginning in 1970, when he first visited the area, the senior author has accumulated a large amount of data covering all seasons of the year, which form the primary basis for the seasonal information in this paper. In addition, much information was contributed by …

“Book Review” From Nebraska Bird Review (June 1984) 52(2)

Nebraska Bird Review

How Birds Work: A Guide to Bird Biology, Ron Freethy, 232 pp., 6 x 9¼, Blandford Press, England, Sterling Publishing Co., Inc., New York, bibliography, indexed, hardbound $19.95, paperback $8.95.

“How Birds Work is a straightforward introduction to the science of ornithology and provides basic information enabling the amateur birdwatcher to understand his ‘quarry’ more easily. As a direct result of reading this book, the behavior of birds will be more readily understood, and in particular the complexities of migration.” Which is a fair summary of the book, although it may over-stress migration. The chapter headings are The …

Nebraska Bird Review (June 1984) 52(2), Whole Issue

Nebraska Bird Review

Birds of Lake McConaughy and the North Platte River Valley, Oshkosh to Keystone … 26

Some 1983 Summer Birds of the Missouri National Recreation River, Nebraska … 36

The Eighty-third Annual Meeting … 41

Lesser Goldfinch Recorded in Nebraska … 42

Notes … 42

Book Review … 44

The Eighty-Third Annual Meeting

Nebraska Bird Review

Almost perfect weather greeted the 59 who registered for the eighty-third Annual Meeting, held at Camp Norwesca, near Chadron State Park, 19 and 20 May 1984. There was a slide show (including a bird identification quiz) Friday night. Saturday there were bird trips to Sowbelly Canyon and Gilbert-Baker Wildlife Area, north of Crawford, and on over to the Wyoming border; to Soldiers Creek, near Fort Robinson; to Beaver Valley, north of Hay Springs; and a shorter, morning only, visit to the Jeanne Dueker home, south of Chadron. At the paper session and Annual Meeting, Saturday afternoon, Mrs. Joyce Brashear read …

Functional Cranial Analysis Of Large Animalivorous Bats (Microchiroptera), Patricia W. Freeman

University of Nebraska State Museum: Mammalogy Papers

Large animalivorous bats include carnivorous, piscivorous and insectivorous microchiropterans. Skull proportions and tooth morphology are examined and interpreted functionally. Four wide-faced bats from four families are convergent in having wide skulls, large masseter muscle volumes and stout jaws, indicating a powerful bite. Three of the four also have long canine teeth relative to their maxillary toothrows. Carnivorous bats have more elongate skulls, larger brain volumes and larger pinnae. The wide-faced bats are all oral emitters and have heads positively tilted relative to the basicranial axis. The carnivorous species are nasal-emitting bats and have negatively tilted heads. The orientation of the …

Effects Of Intraperitoneal And Intracerebral Injections Of Triiodothyronine On Temperature Selection In Fish, Dennis A. Grahn

Dissertations and Theses

Goldfish (Carassius auratus) of 15-28g were maintained at 23 C and subsequently were intraperitoneally injected with saline (controls) and varying doses of Triiodothyronine (T₃). Following the injection, the fish were placed in a thermal gradient and temperature selection and activity monitored for 30 min. There was no- significant difference between the responses of the experimental fish to the 2 different doses of T₃. However, there was a significant difference in response between the experimental and control groups (P < 0.001). The decreased temperature selection occurred early in the test runs, while the increased activity began later. Larger goldfish (175-205g) received 0.5 μl intracerebral injections of 1.5-3.0 ng T₃ in the anterior brainstem via an indwelling cannula injection system. These fish responded to the injections by …

Kentucky Warbler (Vol. 60, No. 2), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.

The Hellbender, Cryptobranchus Alleganiensis, In Indiana, William H. Kern Jr.

All-Inclusive List of Electronic Theses and Dissertations

Very 1 ittle was previously known ubout the Hellbender, Crrp:t:£branchus alleganiensis alleganiensis, in Indiana. The purpose of this study was to determine its current range and status in Indiana and collect life history information. The hell benders were captured by hand from under rocks and 1d th hoopnets baited with cut fish. They were tagged, measured, wei~hed, examined for large external parasites, wounds, and reproductive cond:i - tion. Stoma ch contents were taken with a non-lethal, stomach-flushfog technique. The animals were then released at the site of capture. Al though they were originally found in the Ohio River, \\'hi tewater …

Relationships Among Measures Of Testicular Development And Endocrine Function In Boars, A. P. Schinckel, R. K. Johnson, R. J. Kittock

Department of Animal Science: Faculty Publications

Nine blood samples were taken at 30-min intervals from 36 Landrace x Large White boars at each of eight ages (42, 56, 70, 84, 98, 112, 126 and 140 d). Serum concentrations of luteinizing hormone (LH), follicle-stimulating hormone (FSH), testosterone (T) and estradiol- 17β (E_-2) were quantified by radioimmunoassay procedures. The maximum concentration of LH and the age at maximum concentration were predicted for each boar. Variability of LH samples was described for each boar by the pooled within age variance among LH samples and by the number of LH peaks. Measurements of testicular development taken at 140 …

Wpa News 5 (1984), World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Newsletters

WPA News (May 1984), number 5

Published by the World Pheasant Association

Testicular Development And Endocrine Characteristics Of Boars Selected For Either High Or Low Testis Size , A. P. Schinckel, R. K. Johnson, R. J. Kittock

Department of Animal Science: Faculty Publications

Thirty-six Landrace x Large White cross boars were selected from litters with either high or low estimated breeding values for 150-d paired testis weight. Blood samples were taken via jugular venipuncture at eight ages (42, 56, 70, 84, 98, 112, 126 and 140 d). At each sampling age, nine blood samples were taken at 30-min intervals. Luteinizing hormone (LH) was determined on the individual serum samples. Serum samples from each boar at each age were pooled and concentrations of follicle-stimulating hormone (FSH), estradiol-17β (E₂) and testosterone (T) were determined. Paired testis width, testis length and body weight were …

Seasonal And Spatial Heterogeneity In The Limnetic Zooplankton Community Of Lake Mead, Gene Robert Wilde

Publications (WR)

Zooplankton samples collected from throughout Lake Mead, in 1981-1982, demonstrate the presence of a statistically significant seasonal and spatial heterogeneity in zooplankton densities. Seasonally, the major zooplankton groups were most abundant in the spring and fall, coincident with maxima in chlorophyll-a concentrations. Successions among the various rotifers, cladocerans and copepods present in the reservoir were influenced by food availability, diapause, predation by planktivorous fish and, possibly, water temperatures. Spatial heterogeneity in zooplankton densities was unrelated to water temperature, pH, conductivity and dissolved oxygen concentrations, but was related to the abundance of phytoplankton (chlorophyll-a concentrations) and fish. Statistical analyses indicate that …

Detailed Description And Nomenclature Of High Resolution G-Banded Horse Chromosomes And Cytogenetic Analysis Of Hereditary Multiple Exostosis In Horses, Alma Maciulis

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A reliable technique for obtaining late prophase, prometaphase and greater numbers of metaphase chromosomes is presented. The increased number of mitoses and high resolution chromosomes were obtained using a modification of the typical three-day blood culture technique in which the cell cycle was temporarily blocked at the G₁-s border with methotrexate. A high resolution G-band idiogram is presented using a system similar to the standardization of human chromosomes. The use of this technique and system of nomenclature will facilitate routine analyses of horse chromosomes and provide a basis for the identification and recording of chromosome aberrations in this …

Range Beef Cattle Productivity In Southern Utah, Mouslim A. Maiga

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Twenty-six range beef cattle ranches in southern Utah were surveyed by personal interview to obtain production data. The data were used to characterize the level of production efficiency in terms of calving rate, weaning rate, weaning weight, and net weaning weight in these operations; and to identify factors associated with differences in productivity.

The data revealed that productive efficiency was generally lower than the potential.

Mean calving rate of cows exposed for breeding was 83.4%. Stepwise regression involving calf death losses at or shortly after birth and heifer replacement rate accounted for 98.3% of the variance in calving rate. Calving …

Chemical Composition And Acceptability Of Rain Damaged, Field Dried Alfalfa Hay, Cesar Augusto Araque H.

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Water was applied to swaths of cut alfalfa forage with oscillating sprinklers to stimulate rain damage to field drying alfalfa hay to determine the changes in chemical composition, loss of yield, and acceptability of rain damaged hay to sheep. An additional objective was to develop models to estimate yield losses form experimental hay. The experimental hay was prepared with a 2x2x4x4x2 factorial design. The factors were two different cuttings (July and September), two width of swath (3.05 m and 4.27 m), four times of applying artificial rain (3h, 8h, 13h, and 24h after cutting), four levels of artificial rain (no …