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Research In National Parks, Robert J. Baker, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

This was our first involvement with research in the National Parks and we would like to make some observations concerning interactions among basic researchers, park personnel, and the philosophy on which our park systems are based. Our conclusions are not based only on our own experiences, but also on conversations with other basic researchers (especially those who contributed to this symposium) and with park personnel who have aided and worked with other researchers who were not employed by the National Park Service.

Small Mammal Survey In Two Geographically Separated Aspen Areas, Apichart Thammaruxs

Theses and Dissertations

Small mammal surveys were conducted in two geographically separated aspen areas, in the Chicken Creek Watershed Management Unit, Utah, and Break Neck Flat, Wyoming. Four small mammal species, Peromyscus maniculatus, Clethrionomys gapperi, Zapus princeps and Eutamias minimus were caught most often in both areas of the aspen ecosystem. Peromyscus maniculatus was usually the most abundant animal trapped at all locations indicating the success of this species in aspen communities. The proportion of each species trapped, however, fluctuated, likely in accordance with responses to periodic biotic and abiotic factors. This data will serve as baseline information for the U.S. Forest Service …

Ecology Of The Ferruginous Hawk (Buteo Regalis) In Central Utah Population Dynamics And Nest Site Selection, Neil D. Woffinden

Theses and Dissertations

Research was conducted to determine the effect of prey numbers on the nesting success of the Ferruginous Hawk (Buteo regalis). Conditions associated with nest site selection were also established. Frequent visits were made to active nests to determine clutch sizes, hatching dates and fledging success. Prey remains were collected from nests and analyzed. Kilometer square transects were made throughout the study area in 1974 to determine jackrabbit densities. A drastic decline in numbers of Ferruginous Hawks occurred. The number of young fledged also declined throughout the study while nestling mortality increased. Jackrabbit numbers were high in 1972 and then declined …

A Comparative Study Of Some Population Characteristics Of Calyptraea Fastigiata Gould, Crepidula Lingulata Gould, And Crepidula Nummaria Gould (Gastropoda, Prosobranchia), Roger Harold Goodwill

Theses and Dissertations

A comparative study of the field populations of Crepidula lingulata, Crepidula nurnmaria, and Calyptraea fastigiata indicated all three preferred a rocky substrate but favored different size rocks. Their positions on the rocks varied but the greatest numbers were found attached to the undersides. Crepidula lingulata and C. nummaria preferred larger rocks and were found in intraspecific associations more often than C. fastigiata which preferred smaller rocks. These associations occurred with a 1:1 sex ratio; however, the overall population did not. Crepidula lingulata had a high female count and C. fastigiata a high male count. Males, of all three species, were …

Territory And Mating System In The Bobolink, Dolichonyx Oryzivorus, Arlo J. Raim

Masters Theses

No abstract provided.

1975 Little International Agricultural Exposition Catalog, Department Of South Dakota State University

Little International "Little I" Agricultural Exposition Catalogs

No abstract provided.

Erratic Residents Purple Finches Cause 'Pink Sparrow' Winter, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Revised Checklist Of North American Mammals North Of Mexico, 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 two years ago of our "Checklist of North American mammals north of Mexico" (Jones et al., 1973), demand for that list has exceeded the supply set aside for general distribution; additionally, published systematic studies in the interval necessitate several changes in the list. Principally for these reasons, we here present a revised checklist of mammalian species occurring in the Nearctic to the north of Mexico. As in this and similar earlier compilations, …

Whole Issue Nebraska Bird Review (March 1975) 43(1)

Nebraska Bird Review

Table of Contents

1974 Treasurer's Report ...................................................... ................... 2

The Song Sparrow as a Nebraska Breeding Bird .................................... 3

1974 Christmas Count .................................................................. 8

1974 Nebraska Nesting Survey ................................................... 13

Virginia Rail Nesting in Lancaster County ................................. 19

Notes .................. ..................................... 20

Kentucky Warbler (Vol. 51, No. 1), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.

Annotated Checklist Of Mammals Of The Yucatán Peninsula, México. Iv. Carnivora, Sirenia, Perissodactyla, Artiodactyla, Hugh H. Genoways, Robert J. Baker

University of Nebraska State Museum: Mammalogy Papers

This is the fourth in a series of papers by Jones, et al., dealing with the systematics and distributional status of mammals on the Yucatán Peninsula of México. The present contribution lists 24 native species belonging to the orders Carnivora (18 species), Sirenia (one), Perissodactyla (one), and Artiodactyla (four). Among the carnivores there are one canid, six procyonids, six mustelids, and five felids, whereas the Artiodactyla is represented by two families (Tayassuidae and Cervidae), each with two species.

The Yucatán Peninsula as treated in this series of papers includes the Mexican states of Campeche and Yucatan, and the Federal Territory …

Comparison Of Artificial Substrates In Bottom Fauna Studies On A Large River, David R. Mcconville

Journal of the Minnesota Academy of Science

During the summer of 1974, five types of artificial substrates and grab sampling were evaluated for sampling efficiency in pool No. 3 of the Upper Mississippi River. A total of 35 taxa of organisms were collected by the different techniques. Ponar grab sampling collected representatives of only eight taxa, whereas concrete block samplers collected 22 taxa . Intermediate in taxonomic collection were the Hester-Dendy samplers with 21 taxa, the barbecue basket samplers with 20 taxa, the Miller samplers with 17 taxa, and conservation webbing with 12 taxa. The barbecue basket samplers were the most productive, yielding at least five times …

Studies On Schistosome Dermatitis ('Swimmer's Itch") In Minnesota, Donald E. Gilbertson, Richard Wedlund

Journal of the Minnesota Academy of Science

A preliminary study was conducted to determine the causative agents of schistosome dermatitis ( "swimmer's itch") in Minnesota and to determine the incidence schistosome infection in vector snails. A total of 1180 snails were collected from ten different localities, eight of which were sites of known schistosome activity . The incidence of schistosome infection in snails from individual areas was always less than 10 percent. Cercariae of Trichobilharzia ocellata from Lymnaea stagnalis were the most frequently-found schistosomes in our study.

Herpesvirus Disease Of Salmonids, Ken Wolf, Tokuo Sano, Takahisa Kimura

United States Fish and Wildlife Service: Publications

A newly recognized virus, lethal for fry and fingerlings, has been isolated from brood stock rainbow trout (Salmo gairdneri) at the Winthrop National Fish Hatchery, Washington. A similar if not identical virus has been found in natural epizootics occurring annually since 1970 among fry of landlocked sockeye salmon (Oncorhynchus nerka) on Honshu Island, Japan. More recently, this agent was isolated from moribund and dead adult O. nerka on Hokkaido Island; Japan, but it remains to be determined whether or not the virus causes death in adult salmonids. The purpose of this leaflet is to bring the …

Fisheries Report No 19 - The Western Rock Lobster Fishery 1973 - 1974, 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 …

Calcium And Phosphorus Requirements In Lupin Seed Rations For Pigs, N W. Godfrey, A. R. Mercy

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

Seed of lupin varieties now available can be combined with wheat or barley to produce a balanced diet for growing/finishing pigs, and lupin seed has become a popular ingredient of pig rations.

As a protein concentrate, lupin seed is a satisfactory alternative to meatmeal, provided adequate amounts of calcium and phosphorus are added as supplements. Without the addition of these elements to rations of lupin seed and grain, a number of problems are likely to arise.

Trials at the Medina Pig Research Station have shown that Christmas Island rock phosphate is the cheapest and most convenient source of supplementary calcium …

The Behaviour Of Swine, J. P. Signoret, B. A. Baldwin, D. Fraser, E. S. E. Hafez

Mammalogy Collection

The pig was a forest-dwelling animal from the beginning of its history. In some parts of the world it has been domesticated for at least 7000 years. The European breeds of domestic swine were derived from the local wild pig, Sus scrofa. Herds ranged in pastures and forests and kept indoors only for fattening. The breeds in the Far East were derived from another wild pig, Sus vittatus, a smaller animal with shorter legs and a higher reproductive ability (Mohr 1960; Zeuner 1963). The two types interbred readily. The modem breeds of pig evolved from different crossings between the two …

Special Report On Controlling America's Pet Population

Special Reports

HSUS estimates that public and private animal control programs cost the nation as much as $500 million a year. Much of this expense is required for the feeding and care of unwanted animals during the 5 to 10 days they are held for adoption, killing the 80% that are not adopted or redeemed, and disposing of the carcasses. The result is both an unconscionable waste of life and a needless drain on public and private money.

A large part of the blame for people undertaking pet ownership without having made a total commitment to the animal lies with the pet …

The Communication Of Play Intention: Are Play Signals Functional?, Marc Bekoff

Sentience Collection

No abstract provided.

Fisheries Report No 18 - Tuna Survey In Waters Off The Western Australian Coast During The Period August 1973 To August 1974, J. P. Robins

Fisheries Research Reports

In September 1972, Markwell Ross Fisheries Pty Ltd (a subsidiary fishing division of Q.U.F. Industries Ltd) approached the Western Australian Department of Fisheries and Fauna (now Department of Fisheries and Wildlife) for assistance in the development and carrying out of a purse seining programme using the 25m rock lob­ster vessel F.B. Western Star.

Negotiation and agreement was reached, with the objective to under­take and carry out an investigation into the feasibility of developing a purse seine fishery for tuna in Western Australian waters. The Department of Fisheries and Wildlife (Development Section) supplied, on loan, capital fishing equipment (purse seine net, …

Fisheries Report No 16 - Notes On The Wildlife Of A Proposed Nature Reserve Around Lake Grace And Lake Chinokup, Western Australia, N. L. Mckenzie, W. K. Youngson

Fisheries Research Reports

During 1972 and 1973 plants and vertebrate animals were collected and recorded from a proposed 22 000 ha nature reserve centred on a chain of salt lakes in south-western Western Australia (33° 10' S - 33° 35' 8 and 118° 19' B - 118° 29' E).

The dominant plant species were collected, the structural formations desert bed and a vegetation map produced. Seven species of native terrestrial mammal and three species of bat were recorded.

Three of the terrestrial species are endemic to southwestern Western Australia, and two of these - Pseudomys occidentalis and Sminthopsis granulipes - are regarded as …

Fisheries Report No 17 - Some Aspects Of Tuna And Its Potential In The Oceanic Waters Off Western Australia, J. P. Robins

Fisheries Research Reports

In this report an endeavour has been made to describe very briefly the growth of the tuna fishery in Australia, world production, utilisation, price and future demand, tuna species descriptions, species occurrence around the Australian coast and the results of two aerial surveys for tuna off. the west and north-west coasts of Western Australia.

Ec75-219 Nebraska Swine Report, William Ahlschwede, T. E. Socha, Alfonso Torres-Medina, A. J. Lewis, P. J. Cunningham, Dwane R. Zimmerman, E. R. Peo Jr., Larry K. Mcmullen, Bobby D. Moser, D. L. Ferguson, Phillip H. Grabouski, Murray Danielson, Charles W. Francis, L. F. Elliott, J. A. Deshazer, Roger W. Mandigo, W. J. Goldner, R. D. Fritschen, Gary Zoubek

University of Nebraska-Lincoln Extension: Historical Materials

This 1975 Nebraska Swine Report was prepared by the staff in Animal Science and cooperating departments for use in the Extension and Teaching programs at the University of Nebraska-Lincoln. Authors from the following areas contributed to this publication: Swine Nutrition, swine diseases, pathology, economics, engineering, swine breeding, meats, agronomy, and diagnostic laboratory. It covers the following areas: breeding, disease control, feeding, nutrition, economics, housing and meats.

A Unit For Trapping Clean Pollen, S R. Chambers

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

Pollen, the fine particles formed in plant life and carrying the male germ cell responsible for fruit fertilisation and plant embryo formation, has been the subject of continual study over many years.

Original attempts to trap pollen loads from the honeybees were made with the object of feeding back pollen to colonies in times of short supply or over periods of pollen dearth.

With improved trapping methods, harvesting of pollen has developed to the extent that beekeepers can now produce a surplus to their needs.

In a time of world shortage of protein food substances it is not surprising that …

Lupinosis, M R. Gardiner

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

In spite of many years of intensive investigation lupinosis remains a remarkably complex and baffling problem. Current research is throwing new light on the disease and it is now much better understood— although far from beaten.

Lupinosis research is co-ordinated by the Department of Agriculture's Lupinosis Committee, on which are represented all groups working on the disease. These include veterinary surgeons and pathologists, chemists, plant pathologists and animal husbandry specialists.

Chairman of the Committee is Dr M. R. Gardiner, Chief of the Department's Animal Division and a veteran of lupinosis research.

In this article Dr Gardiner summarises the current state …

The Sheep Measles Control Programme, J B. White

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

In the first seven months of 1968 Australia exported to the United States 17 747 tons of boned mutton; of this 2 198 tons, or 12.4 per cent, was condemned on arrival in that country.

The main cause of rejection was the presence of Cystkercus ovis cysts, the intermediate stage of the tapeworm Taenia ovis, of which the definitive host is the dog.

In 1969 the Western Australian Department of Agriculture decided to study the epidemiology of this disease.

This was the beginning of the work which would evolve into the 'Three Shire Control Programme'

Lupinosis And Rates Of Stocking Of Lupin Stubbles, K P. Croker, J. G. Allen, C. R. Lester, R. B. Guthrie

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

Lupin stubbles provide valuable summer sheep feed but under some conditions the fungus Phomopsis rossiana (for which lupins are the host plant) produces a toxin that causes lupinosis. Results from research at Badaingarra Research Station over the 1973-74 and 1974- 75 summers have shown that sheep liver damage associated with lupin stubble grazing is likely to be more severe at high than low stocking rates.

Influence Of Exercise On Performance And Carcass Parameters Of Confinement Reared Swine, G. M. Weiss, E. R. Peo, Jr., R. W. Mandingo, B. D. Moser

Department of Animal Science: Faculty Publications

Fifty-six crossbred growing and finishing swine were used to determine the effect of treadmill exercise on several performance and carcass parameters When housed in confinement on 100% slatted floors. The exercised swine were subjected to walking 1.6 km/hr for 1 hr 5 days per week. The mean experimental duration was 71 days. Jugular vein blood samples and gracilus muscle biopsy samples were obtained prior and following completion of exercise. Exercise had no major influence on average daily gain, daily feed intake or gain/feed ratio. Bone breaking strength of the left fourth metatarsal was significantly (P <.01) greater for exercised pigs than non exercised. However, right third and fourth metatarsal and left third metatarsal bone breaking strengths were not influenced by exercise.

Block And Bridle Annual, 1975

Block and Bridle Annual (1933–2021)

Table of Contents:

Purpose and Emblem
Animal Science Dep’t Chairmen Addresses
Block and Bridle President Address
Animal Science Faculty
N.U. Graduate Students
Block and Bridle Officers
Block and Bridle Executive Committee
Block and Bridle Members
Block and Bridle Advisors
Animal Science Seniors
Honor’s Banquet
Senior Merit Award
Junior Scholarship Award
Portrait Presentation
Activities and Program Calendar
Quarter Horse Show (1974)
Steer Show (1974)
Spring picnic and Livestock Judging Contest
Summer Meeting and Sticker Sales
Fall Steak Fry and Kid's Day
State Fair Presentations
Presentation Page
Little Ak-Sar-Ben
Ham Sales
National B & B Meeting
Christmas Coffee
Queen Coronation
Regional Meeting …

Maternal Heterosis In Swine: Reproductive Performance And Dam Productivity, R. K. Johnson, I. T. Omtvedt

Department of Animal Science: Faculty Publications

The objectives of this study were to estimate the heterosis of crossbred gilts for ovulation rate and the maternal heterosis of crossbred gilts for dam productivity. A total of 470 gilts were saved for breeding of which 72 were considered reproductive failures. Estimates of heterosis were made from 193 pregnant gilts slaughtered 30 days postbreeding (106 crossbred and 87 purebred)and 192 litters farrowed (98 three-breed and 94 two-breed cross).

The reproductive failure rate for all gilts was 15.3% with there being very little difference~ between purebred and crossbred gilts. Estimates of heterosis for ovulation rate were not significantly different from …