Zoology Commons^™

Comparative Reproduction Of The Red-Eared Turtle, Pseudemys Scripta Elegans, In Heated And Natural Lakes, Gary Marshal Thornhill

Masters Theses

The effect of heating on aquatic ecosystems by energy producing power plants has not been fully determined. A comparative study of the reproduction of Pseudemys scripta was conducted in heated and natural lakes in southwestern Illinois from 30 March to 10 July, 1979. Lakes used were the same as those used for comparative growth studies of P. scripta by another researcher. Lake Baldwin (heated) has had a reduction in vegetation since that researcher's work. Temperatures were taken of air, water surface, and one meter deep.

Turtles were caught by hand, trammel nets, and in carp-baited hoop nets. Captured turtles were …

Nebraska Trapping, George Schildman, Frank Andelt, Jim Brunner

Nebraska Game and Parks Commission: Publications

Fur bearers and trapping played an important role in the exploration and development of Nebraska. The harvest of our fur-bearer resource is part of every Nebraskan's heritage. Wise use of the resource and consideration for other people's property and personal rights can insure that trapping will remain a part of the heritage of future generations. The purpose of this publication is to help insure this heritage ... through the educational process. Knowledge of and respect for the resource, as well as consideration for other people, are the keys to perpetuating trapping as an outdoor activity. While primarily designed to assist …

Winter Sampling Of Benthic Stream Fishes In Minnesota With A One-Man Net, James E. Erickson

Journal of the Minnesota Academy of Science

Newly designed one-man nets were used extensively between 1973 and 1977 to collect fishes in a variety of stream habitats in southeastern Minnesota. They proved to be especially effective In winter sampling of benthic stream fishes such as Etheostome zonale, Etheostome ceeruleum, Percina phoxocephala, Percina shumardi, Percina caprodes, Rhinichthyes cataractae, and Noturus flavus. Effectiveness and potential importance of these one-man nets as winter sampling devices was demonstrated during three consecutive winters of use In the Cannon River at Welch, Goodhue County, Minnesota.

Hemogregarines In The Red-Eared Slider, Chrysemys Scripta Elegans (Wied) From Arkansas, Chris T. Mcallister, Anthony W. King

Journal of the Arkansas Academy of Science

No abstract provided.

Glycoprotein Proteinase In Agkistrodon Bilineatus Venom, John D. Ruff, Bob D. Johnson, Dewey H. Sifford

Journal of the Arkansas Academy of Science

No abstract provided.

Isolation Of Phospholipase A2 From Agkistrodon Bilineatus Venom, Karl H. Landberg, Bob D. Johnson, Dewey H. Sifford

Journal of the Arkansas Academy of Science

No abstract provided.

Analysis Of Sonagrams Of American Bison (Bison Bison), Harvey L. Gunderson, Brian R. Mahan

University of Nebraska State Museum: Mammalogy Papers

The sound made by adult male American bison (Bison bison) during agonistic behavior has been described as a "roar" because of its similarity to the roar of an African lion (Shult, 1972). Bulls roar any time of the year, but more commonly and most intensively during the rut when there are many agonistic confrontations between competing males. McHugh (1958), Shult (1972), and Petersburg (1973) have described this roaring and under what circumstances it occurs.

While the bull is roaring, its tongue is protruded and the sound is produced by forceful expiration of air over the vocal cords. In …

Apparent Chromosomal Heterosis In A Fossorial Mammal, John C. Patton, Robert J. Baker, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

For the past decade, numerous investigators have attempted to explain the plethora of genetic polymorphism found in nature (see Ayala 1976). However, few researchers have been able to document how polymorphisms have been maintained, whether the polymorphisms were genic or chromosomal. Our investigations into the maintenance of a Robertsonian chromosomal polymorphism in the plains pocket goher, Geomys bursarius major, have revealed evidence that this polymorphism is maintained by differential viabilities of the three chromosomal morphs, with the heterozygote being favored.

Dirofilaria Immitis In The Wild Canids Of Illinois, Thomas J. Kick

Masters Theses

The heartworm, Dirofilaria immitis, is widespread in dogs in North America and has been reported in wild canids in many states. This is a report of this parasite in hearts removed from coyote, red fox and gray fox carcasses collected in Illinois. A total of 415 coyotes had a significantly higher infection rate (23.6%) than 225 red foxes (3.6%) and 99 gray foxes (3.0%). Infection rates in red foxes and coyotes were significantly higher in or near the Wabash Border Natural Division along the eastern side of the state, suggesting a relationship between infection rates and this region. The …

A Diet And Reproductive Study For Selected Species Of Malaysian Turtles, Colleen E. Kimmel

Masters Theses

Batagur baska, Callagur borneoensis, Cuora amboinensis, Cyclemys dentata, Orlitia borneensis, Siebenrockiella crassicollis, and Trionyx cartilagineus are suggested to be omnivorous by diet analysis. Cyclemys and Orlitia are the more herbivorous of the seven species examined. Batagur and Callagur are two closely related sympatric species that appear to have diverged sufficiently to eliminate competition for food resourses, as indicated by Morista's Index of Niche Overlap. Along the Perak River and it's tributaries in West Malaysia, Batagur and Callagur feed primarily upon the fruit of the berembang tree. In Trengganu (eastern Malaysia), the berembang is absent …

Revised Checklist Of North American Mammals North Of Mexico, 1979, J. Knox Jones Jr., Dilford C. Carter, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

Faunal checklists provide useful ready references for many kinds of endeavors, both in the laboratory and in the field, and are particularly helpful to students. Since publication more than four years ago of a "Revised checklist of North American mammals north of Mexico" (Jones et al., 1975), demand for that list has exceeded the supply set aside for general distribution; additionally, systematic studies of mammals published since 1974 necessitate changes in the list. Primarily for these reasons, a newly revised checklist of mammalian species occurring in the Nearctic to the north of Mexico is here presented. As in this and …

Variation In Pappogeomys Castanops (Geomyidae) On The Llano Estacado Of Texas And New Mexico, Robert C. Dowler, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

Nongeographic and geographic variation in the yellow-cheeked pocket gopher, Pappogeomys castanops, were analyzed in specimens collected in northwestern Texas and eastern New Mexico. Univariate and multivariate methods of analysis were utilized to assess variation in morphometric characters among 12 samples of P. castanops. Because of significant variation with age, only adult specimens were used in analyses. Adult males were significantly larger than females in all 13 characters studied. Our analyses of geographic variation reveal that those specimens previously assigned to the subspecies P. c. simulans are not sufficiently distinct to warrant subspecific designation.

End Matter, Vol. 3

Great Basin Naturalist Memoirs

No abstract provided.

Whole Issue Nebraska Bird Review (December 1979) 47(4)

Nebraska Bird Review

Table of Contents

Great Gray Owl Distribution, Winter 1977-78 ....................................... 62

Book Reviews .................................................................. 65

Notes ......................................................................... 66

Index of Volume 47 ............................................................. 70

End Matter, Vol. 3, Index

Great Basin Naturalist Memoirs

No abstract provided.

Full Issue, Vol. 3

Great Basin Naturalist Memoirs

No abstract provided.

Front Matter, Vol. 3

Great Basin Naturalist Memoirs

No abstract provided.

Concurrent Drinking By Pigeons On Fixed-Interval Reinforcement Schedules, Robert H.I. Dale

Scholarship and Professional Work - LAS

Three experienced pigeons were exposed to at least ten consecutive 100-min sessions on each of three food-reinforced fixed-interval (FI) schedules: FI 50-sec, FI 100-sec and FI 200-sec. Water was freely available. Drinking was largely confined to the first third of each fixed interval, and the mean sessional water intake was directly related to the food-reinforcement rate for each animal. The animals drank very quickly, i.e., 3-4 ml/sec, but the drinking bouts were brief, i.e., 0.8-1.4 sec, and infrequent, i.e., 2-5/hr. The parameters describing concurrent drinking in the pigeon are strikingly different from those describing rats’ drinking under similar reinforcement schedules, …

Records Of Bats (Mammalia: Chiroptera) From Suriname, Hugh H. Genoways, Stephen L. Williams

University of Nebraska State Museum: Mammalogy Papers

Ten species are added to the 60 species of bats already known to occur in Suriname. The species added include Micronycteris minuta, M. nicefori, Phylloderma stenops, Tonatia bidens, T. brasiliense, Carollia brevicauda, Chiroderma trinitatum, Vampyressa bidens, Promops centralis, and P. nasutus. Additional information is presented on five species previously recorded from Suriname, including Pteronotus parnellii, Mimon crenulatum, Artibeus concolor, Chiroderma villosum, and Sturnira tildae.

Whole Issue Nebraska Bird Review (September 1979) 47(3)

Nebraska Bird Review

Table of Contents

1979 (Fifty-fourth) Spring Migration and Occurrence Report .......................... 42

The Seventy-eight Annual Meeting ................................................ 54

1979 Fall Field Day................................. 55

Book Reviews.............................................................. 56

Successful Golden Eagle Nest in Southwest Nebraska ............................... 57

Notes ......................................................................... 57

Distribution And Natural History Of Amphibians And Reptiles In Western Nebraska With Ecological Notes On The Herpetiles Of Arapaho Prairie, Royce E. Ballinger, John D. Lynch, Patrick H. Cole

Papers in Herpetology

Introduction: The distribution and natural history of amphibians and reptiles have been little studied in the northern states of the great plains. Relative to other vertebrate groups, the herpetofauna of grasslands is depauperate particularly at higher latitudes where temperature becomes a limiting factor to poikilotherms. Nevertheless, certain species of amphibians and reptiles are common in specific habitats and thus form a conspicuous component of the prairie fauna. The purposes of the present study were to document the distributions of herpetiles in a specified region of western Nebraska and to describe general aspects of their natural history. We hope such information …

Specialized Insectivory: Beetle-Eatinga Nd Moth-Eating Molossid Bats, Patricia W. Freeman

University of Nebraska State Museum: Mammalogy Papers

The structure and mechanics of insectivores have been little studied. An effort is made here to compare and contrast jaw characteristics of insectivorous bats with those of herbivores and carnivores. Further, in one particular family of bats (Molossidae) jaw modifications are such that animals that take hard-shelled insect prey can be distinguished from those that take soft-shelled insect prey. Beetle-eaters generally have thick jaws, well-developed cranial crests, and fewer but bigger teeth, whereas moth-eaters have thin jaws, little crest build-up, and more but smaller teeth.

Swimming As A Determinate To Immigration For Two Small Mammals In Coastal Virginia, Jeffrey Lewis Carter

Biological Sciences Theses & Dissertations

Small mammals were live trapped on the mainland and on an island located in the southeast corner of Virginia. The area was characterized by a mid-Atlantic coastal climate. White-footed mice (Perompsous fsucopus) were trapped on the mainland but not on the island, whereas meadow voles (Microtus psnnsylvimious) inhabited only the island. A series of swimming tests were performed in both the field and in the laboratory on both of these species to determine if swimming abilities could be the factor preventing Pszomysous from colonizing the island.

Both species of small mammals showed good swimming endurance in …

Seasonal Feeding Habits Of The River Otter (Lutra Canadensis) In Ditches Of The Great Dismal Swamp, Ronnie M. Pierce

Biological Sciences Theses & Dissertations

To determine the seasonal feeding habits of the river otter (Lutra canadensis) in the Great Dismal Swamp 209 scats were collected, from May 1977 to May 1978, and analyzed for content. Remains of crayfish were found with a frequency of occurrence of 82% while fish remains occurred in 62% of the scat. This is in direct contrast to previous studies (from other areas) which found fish with a greater frequency than crayfish. Fish consumption was believed to increase during periods of low water or low temperatures. Sunfish were represented most frequently and may be the preferred fish. Amphiuma remains …

Whole Issue Nebraska Bird Review (June 1979) 47(2)

Nebraska Bird Review

Table of Contents

1978 (Twenty-first) Fall Occurrence Report ........................................ 22

Addition to 1978 Spring Migration Report .......................................... 33

1978 Christmas Count........................................................... 33

Some Comments on "The Breeding Birds of Nebraska”............................. 38

A Second Nesting Record for Merlins in Nebraska .................................. 39

Great Black-backed Gull near Omaha............................................. 39

Front Matter, Elephant Editors

Elephant

Table of Contents and Cover credits

Observations In Tsavo National Park, Kenya, Evans E. Mgaah

Elephant

Personal observations from four years as a game ranger in Tsavo National Park, Kenya.

Captive Elephant Population Of North America: 1979 Update, Elephant Editors

Elephant

Survey of elephants in captivity, 1979.

Observations Of Elephants In East And Southern Africa, Jeheskel Shoshani

Elephant

Selected short observations on African elephants (Loxodonta africana) made during 1978 in East and Southern Africa.

Iucn/Wwf Help Wanted, Elephant Editors

Elephant

A published plea from the IUCN/World Wildlife Fund Conservation Programme in Indonesia asking for information regarding endangered elephants in Sumatra.