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Paleoclimatic Implications Of Pleistocene Herpetofaunas Of Eastern And Central North America, J. Alan Holman

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

A review of Pleistocene herpetofaunas of eastern and central North America does not support the classical concept of alternating cool-moist, warm-dry glacial and interglacial climates. On the contrary, herpetological evidence generally indicates Pleistocene climates south of the glacial boundaries were warmer or more equable than today until very Late Pleistocene time, when there is some evidence of cooling in the Ozark and Appalachian areas. On the other hand, there is evidence that climatic equability persisted in southern Texas, northeastern Mississippi, northwestern Georgia, and Florida, in very Late Pleistocene time. Since classical terms such as Nebraskan, Aftonian, Kansan, etc., reflect the …

Design Of Vegetative Filters For Feedlot Runoff Treatment In Humid Areas, D. H. Vanderholm, Elbert C. Dickey

Department of Agricultural and Biological Systems Engineering: Faculty Publications

The vegetative filter approach uses overland flow or shallow channelized flow to treat feedlot runoff by infiltration, dilution and filtration. Based on extensive monitoring of four field systems in Illinois over a two year period, acceptable performance standards were selected. Design criteria to meet the standards were developed for both the overland flow vegetative filters and the channelized or serpentine terrace filters. A major design criterion for both types of vegetative filters is the time required for applied runoff to flow the length of the filter.

An alternative to using zero-discharge treatment systems to control feedlot runoff is to replace …

Quantitative Demonstration Of Cell Surface Involvement In A Plant-Animal Symbiosis: Lectin Inhibition Of Reassociation, R. H. Meints, Rosevelt L. Pardy

School of Biological Sciences: Faculty Publications

The freshwater hydra, Hydra viridis is normally associated with Chlorella-like, algal symbionts which inhabit the host's digestive cells. Under experimental conditions bleached hydra will reassociate with algae harvested from green hydra, but not from our cultures of wild type Chlorella or strain NC64A which when originally isolated from Paramecium bursaria was symbiotically competent. Because of its demonstrated selectivity, the reassociation process is hypothesized to involve a recognition interface whose active participants are the algae cell wall and the digestive cell membrane. The data presented here confirm the hypothesis and suggest some potential molecular characteristics of the interacting partners. Concanavalin …

Absolute Requirement Of Glucocorticoid For Expression Of The Casein Gene In The Presence Of Prolactin, Ranjan Ganguly, Nivedita Ganguly, Nozer M. Mehta, M. R. Banerjee

School of Biological Sciences: Faculty Publications

Second thoracic mammary glands of immature BALB/c female mice were stimulated to pregnancy-like lobuloalveolar (LA) development after 6 days of incubation in a corticosteroid-free step I culture medium containing insulin, prolactin, estradiol, progesterone, and growth hormone. A low basal level (0.0009%) of casein mRNA (mRNA_csn) sequences was detectable in the LA glands by a specific cDNA probe. Subsequent incubation of the LA glands for 3 days in medium containing insulin and prolactin or insulin and cortisol failed to elicit mRNA_csn above the basal level, indicating that neither prolactin nor cortisol alone can support casein gene expression. However, …

Quantitative Demonstration Of Cell Surface Involvement In A Plant-Animal Symbiosis: Lectin Inhibition Of Reassociation, R. H. Meints, R. L. Pardy

School of Biological Sciences: Faculty Publications

The freshwater hydra, Hydra viridis is normally associated with Chlorella-like, algal symbionts which inhabit the host's digestive cells. Under experimental conditions bleached hydra will reassociate with algae harvested from green hydra, but not from our cultures of wild type Chlorella or strain NC6₄A which when originally isolated from Paramecium bursaria was symbiotically competent. Because of its demonstrated selectivity, the reassociation process is hypothesized to involve a recognition interface whose active participants are the algae cell wall and the digestive cell membrane. The data presented here confirm the hypothesis and suggest some potential molecular characteristics of the interacting …

Copulatory Behavior Of The American Bittern [Short Communications], Paul A. Johnsgard

Papers in Ornithology

Describes the copulatory behavior of the American bittern, Botaurus lentiginosus, with line-drawings.

Arapaho Prairie, Arthur County, Nebraska: Approximate Ap Grid For Gis, Kathleen H. Keeler, A. T. Harrison, L. S. Vescio

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Grid map of field sites at Arapaho Prairie in Arthur County, Nebraska. Scale 1 5/16" = 1/4 mile. Shows permanently marked vegetation quadrats, blowouts and ravine washouts, roads, and 100' contour intervals. Part of the map was destroyed by mice. What remains of the map as of 2013 is shown.

Cestodes In Four Species Of Euryhaline Stingrays From Colombia, Daniel R. Brooks, Monte A. Mayers

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Seven species of cestodes are reported from coastal stingrays in the vicinity of Cartagena, Colombia, Acanthobothrium colombianum sp,n. from Aetobatis narinari resembles A . paulum and A. mathiasi but differs by having relatively shorter, more squared proglottids at the end of the strobila, a pre-equatorial genital pore, relatively less elongate ovarian lobes in terminal proglottids, and less prominent apical suckers and pads. Acanthobothrium urotrygoni sp.n. from Urotrygon venezuelae most closely resembles A . olseni in bothridial hook length but differs in cirrus sac size, resembles A. southwelli in cirrus sac size but differs in bothridial hook length, and differs from …

Occurrence Of Quadrigyrus Torquatus Van Cleave, 1920 (Acanthocephala) In North-Central Colombia, South America, Richard L. Buckner, Daniel R. Brooks

Harold W. Manter Laboratory of Parasitology: Faculty Publications

During June and July of 1975 and 1976, fish of the Magdalena River basin in Colombia, South America, were examined for acanthocephalans, A total of 16 species of fish were collected from the departments of Caldas and Bolivar. Worms were fixed in AFA and stained in Mayer's carmalum,

Redescription Of Diandrya Composita Darrah, 1930 (Cestoda: Anoplocephalidae) From Nearctic Marmots (Rodentia: Sciuridae) And The Relationships Of The Genus Diandrya Emend., Robert L. Rausch

Harold W. Manter Laboratory of Parasitology: Faculty Publications

According to the original description of Diandrya composita Darrah, 1930 (the type and only species of the Nearctic genus Diandrya Darrah, 1930) , this cestode would possess a combination of organs, the "interproglottidal glands" and "pedunculated prostate glands," otherwise unknown in any member of the Anoplocephalidae. Neither of these organs is present in D. composita . This species is redescribed and the generic diagnosis is emended accordingly. Diandrya composita has its closest affinities with cestodes of the genus Andrya Railliet, 1893, from which it differs significantly only in reduplication of the reproductive organs.

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.

Cephalic Papillae Of Giant Kidney Nematode Dioctophyma Renale (Goeze, 1782) And Comparison With Eustrongylides Spp., J. R. Lichtenfels, P. A. Madden

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Cephalic papillae of third- and fifth-stage Dioctophyma renale and fourth- and fifth-stage Eustrongylides spp. were found to be of three kinds in addition to the amphids. In all the stages of both genera studied, six papillae were in an internal circle, six in an external circle, and eight to 10 in two lateral fields of four or five each between the internal and external circles. Amphids were closely associated with the externolateral papillae. Another porelike papilla was found between the ventroventral papillae in all but fifth-stage D. renale. In third-stage D. renale, lateral rows of somatic papillae were …

Relationship Of Daylength And Prolactin To Resumption Of Reproductive Activity In Anestrous Ewes, Bruce Schanbacher

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Concentrations of prolactin were measured in serum from three groups of Rambouillet ewes for 8 weeks to determine whether changes in prolactin concentrations were important during the transition from anestrus to seasonal breeding. Group I (control ewes) was maintained under conditions of natural daylength;group II (short-day ewes) was exposed abruptly on the longest day of the year to artificially shortened daylengths (8 hr light and 16 hr darkness); group III (CB 154 ewes) was maintained similar to control ewes except each ewe received twice daily im injections of 2-bromo-α-ergocryptine (CB 154). A fertile ram was kept with each group of …

Androgen Secretion And Characteristics Of Testicular Hcg Binding In Cryptorchid Rats, B. D. Schanbacher

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Response of the cryptorchid testis to gonadotrophic stimulation was assessed by comparison of the androgen production capability in vivo and in vitro with that of the normal scrotal testis. Serum androgen concentrations in cryptorchid rats were similar to those in normal rats, and the incremental increase 60 min after 50 i.u. hCG (i.v.) was about 7-fold for both groups. Basal and hCG-stimulated androgen production in vitro was higher for abdominal testes (557 and 3286 ng/pair) than for scrotal tests (157 and 504 ng/pair). Specific binding of hCG by testicular homogenates was slightly higher (P < 0·05)for cryptorchid testes when expressed per unit weight, but Scatchard analysis indicated that although hCG binding affinities did not differ (Ka = 2×10¹⁰ M^-1), hCG binding …

Pheasants In Asia 1979: Proceedings Of The First International Symposium On Pheasants In Asia (November 21-23, 1979 : Kathmandu, Nepal), Keith Howman, Christopher Savage

Galliformes Specialist Group and Affiliated Societies: Conference Proceedings

Message from His Majesty King Birendra Bir Bikram Shah Dev

Inaugural Address by the Rt. Hon. Prime Minister

Welcome Address by the Chief Conservator of Forests

Reply by Keith Howman, Chairman of the Conference

Keynote Papers

Forestry, National Parks and Conservation in Nepal, B. N. Upreti

Pheasant Conservation: A Minimum Programme? Christopher D.W. Savage

Reports on the Status of Pheasants

Nepal (1) Introductory Paper, Karna Sarkya

Nepal (2) Status of the Pheasants of Nepal, J. O. M. Roberts

Status of the Pheasants in Pakistan, Z. B. Mirza

Status of the Pheasants, Malaysia and Indonesia, G. W. H. Davison

The Himalayas: …

Proceedings Of Perdix Ii: Gray Partridge Workshop, Forest, Wildlife And Range Experiment Station, University Of Idaho, The Wildlife Society, Idaho Cahpter, Wildlife Management Institute

Galliformes Specialist Group and Affiliated Societies: Conference Proceedings

Proceedings of Perdix II: Gray Partridge Workshop (March 18-20, 1980, Moscow, Idaho, United States)

The proceedings for this symposium have been divided into three parts: professional papers, a continent-wide management/research plan, and a bibliography. All of the papers were refereed by two or three people working in the field.

Papers Presented

The Distribution and Density of Gray Partridge in Northern New York, David E. Austin

Habitat Utilization by Gray Partridge (Perdix perdix L.) Prenesting Pairs in East-Central Wisconsin, Kevin E. Church, Hallett J. Harris, and Richard B. Stiehl

An Evaluation of Gray Partridge (Perdix perdix) Aging Criteria, …

Tort Recovery For Invasion Of Privacy: L.B. 394 (Neb. Rev. Stat. §§ 20-201 To -211, 25-804.01 (Supp. 1979)), Steven P. Amen

Nebraska Law Review

I. Introduction

II. The Protection of Privacy under L.B. 394 … A. The Original Goal … B. Protection against Appropriation of Name or Likeness … C. Protection of Solitude and Seclusion … D. False Light

III. Conclusion

Cultural Ecology: A Brief Overview, Michael C. Gunn

Nebraska Anthropologist

Cultural ecology is based on the interaction of culture, man and environment. To the understanding of this relationship the present paper discusses the origin and development of cultural ecology, the various applications and techniques of cultural ecology by the anthropological discipline, and finally, criticisms and future goals of an ecological anthropology.

Ecology is not an anthropological subdiscipline, nor is it even a standardized approach in anthropology. Ecology may be defined as the science dealing with the study of entire assemblages of living organisms and their physical milieus, which together constitute integrated systems. More simply, ecology is the study of the …

Human And Cultural Ecology: A Partial Bibliography, Michael C. Gunn

Nebraska Anthropologist

The following bibliography represents a partial listing of books and articles dealing with human and cultural ecology. Central to this bibliography are titles dealing with the conceptual and methodological aspects of human/cultural ecology as applicable to the broad field of anthropology. Also of primary importance are titles dealing with the anthropological use of population demography. Topics of related interest (general ecology, human adaption, bioenergetics, etc.) are represented by selected titles. While the bibliography falls far short of total citation of all articles dealing with the aforementioned topics, it should provide a firm base upon which the student or researcher may …

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.

Update Of Federally Registered Vertebrate Pesticides, Raymond W. Matheny

Great Plains Wildlife Damage Control Workshop Proceedings

The Environmental Protection Agency is charged by Congress under the Federal Insecticide, Fungicide and Rodenticide Act (FIFRA) to regulate the use of pesticides in the United States. Section 3 of FIFRA requires that all interstate pesticides be federally registered. In this process applicants must submit data to support registration of their products. These data encompass the safety, basic chemistry, environmental chemistry, human toxicity and fish and wildlife toxicity of the product. Admittedly, registration of pesticides can be both costly and time-consuming. The objective is to protect the environment, both plant and animal, from adverse effects. Pesticides may also be used,experimentally …

The Status Of Prairie Dogs In The Great Plains, F. Robert Henderson

Great Plains Wildlife Damage Control Workshop Proceedings

The data used in this report was acquired during an investigation conducted for the Development Planning and Research Associates Incorporated located here in Manhattan, Kansas: This is a private consulting firm. Their permission to use this information is greatly appreciated. There are four species of prairie dogs in the United States. These are the black-tailed prairie dog (Cynomys ludovicianus), white-tailed prairie dog (Cynomys leucurus), Utah prairie dog (Cynomys parvidens) and Gunnison's prairie dog (Cynomys gunnisoni) (Jones et al, 1975).

Extension Program Planning For Predator Damage Control, Dale A. Wade

Great Plains Wildlife Damage Control Workshop Proceedings

Program planning for reduction of predator damage through the Extension approach normally involves producers, the county Extension agent and the Extension specialist in animal damage control. Please note that I will use the term "animal damage" rather than "wildlife damage", since free-ranging and feral dogs are frequently responsible for predator-caused losses and reducing these losses is equally as important as limiting losses to wild species.

How To Evaluate Wildlife Damage Control Programs - Rodents, Robert M. Timm

Great Plains Wildlife Damage Control Workshop Proceedings

Wildlife damage control programs, whether they be directed at rodents or other species, exist because of particular needs. The first criterion in evaluating any such program is: does the program meet an existing need, i.e. does it effectively reduce damage? To answer this question, it is necessary to define the need. Need can be described in terms of the extent and severity of damage caused by rodents, or potential damage (which may occur, if no action is taken). Actual damage is measured most accurately by an on-site survey or inspection. This may involve measurement of a resource loss (for example, …

The Challenge Of Cost-Benefit Determinations In Bird Damage Control Programs, Richard A. Dolbeer

Great Plains Wildlife Damage Control Workshop Proceedings

Birds cause damage to a variety of crops in North America and, at least for blackbirds feeding on corn, there are fairly accurate estimates of the amount of damage that occurs (Stone et al. 1972, Stickley et al. 1979). To combat these depredation problems, a variety of management tools (cultural methods, mechanical scare devices, chemical toxicants, and repellents)have been developed and are routinely recommended to farmers. Unfortunately, little effort has gone into examing the anticipated or actual losses in relation to the effectiveness and costs of the recommended damage control programs.

Solving Urban Problems Associated With Small Animals, Sharon Whitten

Great Plains Wildlife Damage Control Workshop Proceedings

Small animals have been drawn into the urban setting, and as a consequence of their contact with man their populations are growing. The result of this growth is damage to man's property. We must take steps to reduce damage caused by wildlife in urban areas.

Political And Sociological Aspects Of Wildlife Damage Control, Walter E. Howard

Great Plains Wildlife Damage Control Workshop Proceedings

I greatly appreciate being invited to the 1979 Great Plains Wildlife Damage Control workshop - especially being your dinner speaker. The climate of public opinion developed from the ecology movement in the western world implies that everything chemical is unnatural and bad, while anything biological is intrinsically desirable. Vertebrate pest control faces a very emotional climate, thanks to government actions and many organizations seeking to profit fran keeping it that way. Unfortunately Americans have been indoctrinated to think that the present vertebrate pest control methodology is archaic and inhumane, that the field attracts those who are killers at heart, and …

New Approaches To Alleviating Migratory Bird Damage, Orvis C. Gustad

Great Plains Wildlife Damage Control Workshop Proceedings

The title of "New Approaches to Alleviating Migratory Bird Damage" does not encompass the broad array of efforts being made through research, but rather is limited to new efforts being made through our Animal Damage Control operational program. My primary emphasis will be on the "Lure Crop" approach. The standard Service approach to resolving migratory bird depredation problems has been to conduct field demonstrations and provide information and materials for moving the birds away from the damage site.