Animal Sciences Commons^™

Intensification Of Cow/Calf Production: A History, John Maddux

Range Beef Cow Symposium

The Cow-Calf sector of the beef industry has undergone a period of increasing intensification and tremendous changes in productivity over the past 25 years. Improved technology, new production systems and changing economics have driven the Cow-Calf sector to higher and higher production levels. In this presentation I will lay out the underlying reasons for this increased production and intensification and why it will continue in the future.

“The Best And Worst Decisions I’Ve Made”, Bob Budd

Range Beef Cow Symposium

Given the amount of time I have driven around, or stood around thinking about this topic, I can now definitively say that it is one of the meanest assignments Professor Hixon has ever given out. The fact that he gave me several weeks to ruminate on the topic only makes it more distressing, and the loss of sleep has been severe. If the time frame were more strict, such as what is the worst or best decision you made yesterday, or last week, this would not be nearly as stressful, but to force me to think of every stupid thing …

A Cowboy’S Guide To Building Teams, Tom G. Field, Michael G. Hays

Range Beef Cow Symposium

One of the daunting challenges facing the cattle industry in the near term is the ability to attract and retain skilled and effective human resources to the ranching business. We currently have at our disposal vast amounts of information about marketing, health, reproduction, nutrition, genetics, forage management, and financial decision-making to create and sustain a viable cow-calf, stocker, or feedlot business. In fact, any of the existing enterprise managers in the industry likely excel in a majority of the aforementioned topics. However, one of the major obstacles to success in agriculture is a failure to recognize that human beings are …

Bulletin No. 37: Living Resources And Habitats Of The Lower Connecticut River, Glenn D. Dreyer, Marcianna Caplis

Bulletins

No abstract provided.

The History Of Life In Nebraska: A Time-Travel Adventure, Paul A. Johnsgard

Papers in Ornithology

It is difficult for humans, whose lives are measured in years and decades, to fathom the age of the Earth, whose history is patiently but inexorably written on thin pages of landscape, each lasting millions of years or more. As an exercise in Earth-time, let a single mile represent a million years. Thus .5 mile would represent 500,000 years, .10 mile equals 100,000 years, .01 mile (52 feet) equals 10,000 years; .001 mile (5.2 feet) equals 1,000 years, and about 6 inches equal 100 years. A decade would equal about half an inch. It is 450 miles from the 60th …

Nebraska Bird Review- Whole Issue December 2001 Volume 69 Number 4

Nebraska Bird Review

Table of Contents

Fall Field Report, August-November 2001 Compiled
by W. Ross Silcock ..........................158

Species Accounts.......................... 160

Bird Records of Sporting Editor Sandy Griswold on Fowl
Hunting Trips in the Sand Hills from 1887 to 1928
by J. E. Ducey ..........................190

Index for Volume 69, 1-4 ..........................212

A Cladistic Analysis And Taxonomic Revision Of The Plesiosauria (Reptilia: Sauropterygia), F. Robin O’Keefe

Biological Sciences Faculty Research

The Plesiosauria (Reptilia: Sauropterygia) is a group of Mesozoic marine reptiles known from abundant material, with specimens described from all continents. The group originated very near the Triassic–Jurassic boundary and persisted to the end- Cretaceous mass extinction. This study describes the results of a specimen-based cladistic study of the Plesiosauria, based on examination of 34 taxa scored for 166 morphological characters. The Pliosauroidea is found to by polyphyletic due to the inclusion of the Polycotylidae; this second clade is instead a member of the Plesiosauroidea, and thus more closely related to elasmosaurs than to other ‘pliosaurs’. Characters of body proportion …

Index From Nebraska Bird Review December 2001 Volume 69 Number 4

Nebraska Bird Review

INDEX (12 pages) A-Z

Adams, Betty 23

Alexander, Irene 23

Allen, Elizabeth 3, 47,159

Allison, Mary 22

American, Redstart 184

Amiotte, Sue 48

Andrews, Ron 5

Anhinga 161

Arizona 96

Avocet, American 37, 57, 94, 116, 140, 169, 204

Babbitt, Charles E. 133

Bachel, Elaine 47

Badura, Laurel 47, 160

Barth, Roland 48

Bedows, Elliott 23, 107, 159

Beede, Dillon 22

Benson, Joan 18

Bielenburg, Warren 23

Yellowlegs
Greater 37, 46, 57, 116, 142, 146,148,169
Lesser 38,46, 57, 116, 133, 136-137,140,142,147,169
sp. 204

Yellowthroat, Common 40, 73, 128, 151,158,185

Young, Kay 23

Masthead From Nebraska Bird Review December 2001 Volume 69 Number 4

Nebraska Bird Review

The Nebraska Bird Review (http://rip.physics.unk.eduINOU/) is published quarterly by the Nebraska Ornithologists' Union, Inc., as its official journal, and is sent to members not in arrears of dues. Annual subscription rates (on a calendar-year basis only): $14.00 in the United States; $18.00 for all foreign countries, payable in advance. Single copies are $4.00 each, postpaid, in the United States, and $5.00 elsewhere. Send orders for back issues to Mary Prichard, NOU Librarian, University of Nebraska State Museum, Lincoln, NE 68588-0514.

Memberships in NOU (on a calendar year basis only): Active, $15.00; Sustaining, $25.00; Student, $10.00; Family Active, $20.00; Family Sustaining, …

Fall Field Report, August-November 2001, W. Ross Silcock

Nebraska Bird Review

This Fall Report offers something for everybody. Leading off are significant breeding reports of Ruddy Duck in the Rainwater Basin and Snowy Plover at Lake McConaughy. As observers bird more regularly in late July to early August we are finding that many species begin to move earlier than often realized. There were many reports of birds such as failed breeders, molt migrants, and early-fledged juveniles wandering about. Some of these prove tough identification challenges, too. Early birds were mostly water-related; Eared Grebe, Red-necked Grebe, Double-crested Cormorant, and Osprey, but also Prairie Falcon in the east, and Rusty Blackbird too. Some …

Fisheries Research Report No. 136 - Assessment Of Gonad Staging Systems And Other Methods Used In The Study Of The Reproductive Biology Of Narrow-Barred Spanish Mackerel, Scomberomorus Commerson, In Western Australia, Michael C. Mackie, Paul Lewis

Fisheries Research Reports

Recent research by the Department of Fisheries in Western Australia into the reproductive biology of narrow-barred Spanish mackerel has required the use of various field and laboratory techniques. This report documents the procedures and adaptations of some of these techniques. Assessment and development of illustrated, relevant macroscopic and microscopic staging systems were of particular focus because both have been essential components of the research. The simplified and more reliable macroscopic staging system we developed allowed full use of all gonad samples and a more complete (albeit less distinct) overview of the seasonal pattern of gonad reproductive development. This macroscopic staging …

Kentucky Warbler (Vol. 77, No. 4), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.

Fisheries Research Report No. 130 - Environmental Requirements And Tolerances Of Rainbow Trout (Oncorhynchus Mykiss) And Brown Trout (Salmo Trutta) With Special Reference To Western Australia: A Review, Brett W. Molony

Fisheries Research Reports

Both Oncorhynchus mykiss (rainbow trout) and Salmo trutta (brown trout) have a long history of translocation and culture and a wide knowledge base exists. O.mykiss is being considered as a candidate for inland aquaculture in the salinity affected areas of southern Western Australia and this review aims, in part, at providing relevant information to those considering a trout-framing venture in Western Australia. Both species of trout can survive a wide range of environmental conditions, including temperature, salinity, pH, dissolved oxygen and ammonia, with O.mykiss having a higher temperature tolerance than S.trutta. However, within the ranges of environmental conditions, each species …

Fisheries Research Report No. 127 - A 12-Month Survey Of Recreational Fishing In The Peel-Harvey Estuary Of Western Australia During 1998-99, B E. Malseed, Neil R. Sumner

Fisheries Research Reports

A survey of recreational boat-based and shore-based fishing in the Peel-Harvey Estuary was conducted between August 1998 and July 1999. During the survey 1,996 interviews were conducted at boat ramps. Of these, 1,136 boats had been crabbing and 136 angling in the estuary (43 were both crabbing and angling). In addition to the interviews at boat ramps, 909 shore-based fishing parties were interviewed.

The survey estimated the total annual boat-based recreational fishing effort as 126,000 fisher days, with 88% of this effort targeting blue swimmer crabs. The total annual shore-based recreational fishing effort was estimated to be 191,000 fisher days, …

Fisheries Research Report No. 129 - Morphology And Incidence Of Yabby (Cherax Albidus) Burrows In Western Australia, Craig S. Lawrence

Fisheries Research Reports

Yabby (Cherax albidus) burrows were recorded from dams, channels and ponds in Western Australia. Twenty five sites were sampled during Spring, 1998 and the burrow morphology and density was described from six of these locations where burrows were present. To improve the sample size and address seasonal trends 49 commercially harvested yabby dams were sampled over the summer of 1999/2000 and the number and density of yabby burrows were recorded. Burrow incidence and morphology was also recorded from 25 research ponds at the Avondale Research Station between 1995-1997. Soil and water chemistry values are presented and their relationships with burrow …

Modeling Bighorn Sheep Habitat In Northwest Nebraska, Kyle M. Forbes

Department of Geography: Dissertations, Theses, and Student Research

In recent years geographic information system (GIS) and remote sensing technologies have been used extensively in habitat suitability modeling. By incorporating these technologies, scientists often gain the ability to formulate and implement a more detailed habitat suitability model with the addition of more detailed spatial information. A habitat suitability model was developed to quantify and describe the available suitable Rocky Mountain bighorn sheep (Ovis canadensis canadensis) habitat in the Pine Ridge of northwestern Nebraska and determine if a minimum viable population (MVP) of this species can be supported naturally in the region. The model included a strong spatial …

Wpa News 65 [66] (2001), World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Newsletters

WPA News (November 2001), number 65 [66]

Published by the World Pheasant Association

High Frequency Of Extra-Pair Paternity In Eastern Kingbirds, Diane L. Rowe, Michael T. Murphy, Robert C. Fleischer, Paul G. Wolf

Biology Faculty Publications and Presentations

Genetic parentage in the socially monogamous and territorial Eastern Kingbird( Tyrannust tyrannus) was examined in a central New York population by multilocus DNA fingerprinting. Extra-pair young were identified in 60% (12 of 20) of nests. Of the 64 nestlings profiled, 42% were sired by extra-pair males, but no cases of conspecific brood parasitism were detected. These results are markedly different from a previous electrophoretic study of the same species in a Michigan population, which reported 39% of nestlings were unrelated to one (typically the mother, quasiparasitismo)r both (conspecificb roodp arasitism) of the putative parents. In the New York population, extra-pairp …

High Frequency Of Extra-Pair Paternity In Eastern Kingbirds, Michael T. Murphy, Diane L. Rowe, Robert C. Fleischer, Paul G. Wolf

Biology Faculty Publications

Genetic parentage in the socially monogamous and territorial Eastern Kingbird( Tyrannust tyrannus) was examined in a central New York population by multilocus DNA fingerprinting. Extra-pair young were identified in 60% (12 of 20) of nests. Of the 64 nestlings profiled, 42% were sired by extra-pair males, but no cases of conspecific brood parasitism were detected. These results are markedly different from a previous electrophoretic study of the same species in a Michigan population, which reported 39% of nestlings were unrelated to one (typically the mother, quasiparasitismo)r both (conspecificb roodp arasitism) of the putative parents. In the New York population, extra-pairp …

Cheese Making With Bacteriophage Resistant Bacteria, Clair D. Hicks

Animal and Food Sciences Faculty Patents

A method is provided for reducing or preventing bacteriophage attack on bacteria used in a cheese making process. The method includes (a) treating a blocker peptide precursor with a protease enzyme that hydrolyzes the precursor to produce blocker peptides; (b) collecting the blocker peptides so produced; (c) formulating a starter media with the blocker peptides; (d) growing bulk cultures of cheese making bacteria in the inoculated starter media; and (e) adding bacteria grown in the inoculated starter media to a fermentation medium for producing cheese. The present invention also includes a method of making cheese and cheese produced by the …

Mammals Of Fort A. P. Hill, Caroline County, Virginia And Vicinity, A. Scott Bellows, Joseph C. Mitchell, John F. Pagels, Heather N. Mansfield

Virginia Journal of Science

Fort A.P. Hill (APH) is a 30,329 ha military training installation (U.S. Army) located in the upper Coastal Plain of Caroline County, Virginia. It was formed in 1941 and named in honor of Civil War Confederate Lt. General Ambrose Powell Hill. The current landscape includes a mosaic of habitats that range from old fields to hardwood forests. Forty species of mammals are known to exist on or near the installation. These include one marsupial, five insectivores, 9 chiropterans, one lagomorph, 12 rodents, 10 carnivores, and one cervid. We have studied many of the species on APH since 1997. In this …

Ua66/5 Department Of Agriculture Newsletter, Wku Agriculture

WKU Administration Documents

Newsletter created by WKU Agriculture Department re: faculty/staff, students/alumni, student organizations and clubs and donors.

Familiarity With The Test Environment Improves Escape Responses In The Crimson Spotted Rainbowfish, Melanotaenia Duboulayi, Culum Brown

Sentience Collection

Animals that are familiar with their environment have been reported to have greater survivorship for a number of reasons related to their knowledge of the terrain, which they recall from memory. In an initial experiment rainbowfish significantly improved their escape response towards a novel trawl apparatus over a sequence of five runs. Escape latencies were still low during a subsequent exposure 11 months after the initial exposure. While part of the improvement in escape success was certainly due to learning associated with the location of the escape route, it is likely that this was aided by habituation to the tank …

Recreational Fishing Management Strategy For The West Coast. Minister's Initial Responses To Final Report Of The West Coast Recreational Fishing Working Group (Fisheries Management Paper No. 153), Kim Chance

Fisheries Management Papers

To ensure recreational fishing in WA has a bright futre, a series of regional management stategies are being developed with have the following objectives: 1. Review the appropriateness of current controls, given the significant growth in recreational fishing. 2. Ensure that effective management is in place for the recreational fishing sector that contributes to the sustainability of WA's fish stocks. 3. Position recreational fishing so it can be incorporated into tan integrated management framework in which resource sharing issues can be addressed.

Guidelines For The Establishment Of A Fish Habitat Protection Area., Fisheries Western Australia

Fisheries Management Papers

These guidelines are designed to guide the Department of Fisheries staff and community groups (the proponent) on the process for developing a proposal for a Fish Habitat Protection Area (FHPA). The guidelines: 1. Describe the role and function of Fish Habitat Protection Areas; 2. Guide proponents in selecting a suitable site for an FHPA; 3. Describe the process to be used to develop a proposal for an FHPA; 4. Describe the methodology to be used to develop a management plan for an FHPA; 5. Ensure consistency between applications.

Fish & Wildlife News: October/November/December 2001

Fish and Wildlife News

Contents:

In Memoriam: Richard Guadagno 2
Special Agents Serve as Air Marshals 4
Two New Units for Refuge System 8
Agencies Cooperate for Rare Parrot 9
U.S. Fish & Wildlife Service Grant Program Forges “Pathways to Nature” 11
A Passion for Turtles 17
Interview: Spear Reflects on the Service 18
Refuge Combats Invasive Weeds 22
Racing to Save a Species on the Edge 24
Return of the River Natives 25
A Prologue to Pelican Island 31
Fish and Wildlife...In Brief 35

Intermediate Rings Between A Local Domain And Its Completion, Ii, William Heinzer, Christel Rotthaus, Sylvia Wiegand

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

We present results connecting flatness of extension rings to the Noetherian property for certain intermediate rings between an excellent normal local domain and its completion. We consider conditions for these rings to have Cohen-Macaulay formal fibers. We also present several examples illustrating these results.

Nebraska And South Dakota 2000 Missouri River Recreational Use Survey: Supplement Ii, Nebraska And South Dakota 2000 Missouri River Recreational Use Survey, Fort Randall Tailwater To Big Sioux River, Gerald Mestl, Gerald Wickstrom, Clifton Stone

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

The 2000 Missouri River recreational use survey ran 1 April 2000 through 31 December 2000 and covered the Fort Randall Dam to Big Sioux River reach. Recreational user data was collected from postage paid post cards left on vehicles and through personal interviews. Pressure data was collected during a roving survey from ground counts of vehicles, boat trailers, recreational users. Aerial counts were made to compare angling and recreational boating data with ground count data. Recreational users spent an estimated 745,303 hours on the Missouri River survey reach during 2000. Fishing accounted for an estimated 458,749 hours, or 62% of …

Winter Severity And Wolf Predation On A Formerly Wolf-Free Elk Herd, L. David Mech, Douglas W. Smith, Kerry M. Murphy, Daniel R. Macnulty

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

We studied wolf (Canis lupus) predation on elk (Cervus elaphus) in Yellowstone National Park from 17 March to 15 April 1997 (severe winter conditions) and from 2 to 31 March 1998 (mild winter conditions) 2-3 years after wolves were reintroduced to the park. Elk composed 91% of 117 kills. Data comparisons for 1997 versus 1998 were: hunting success rate, 26% versus 15%; kill rate, 17.1 kg/wolf/day versus 6.1; percent of kill consumed in first day, 7 versus 86; percent femur marrow fat of adult kills, 27 versus 70; calf:adult ratios of kills, 2:33 versus 17:23; sex …

Development Of An Electrotransformation Technique For Streptococcus Iniae And Preliminary Characterization Of The Hemolysin Associated With This Bacterium, Kimberly Ann Hahn

Biological Sciences Theses & Dissertations

Streptococcus iniae is a gram-positive organism responsible for causing disease in both freshwater as well as saltwater fish. Every year fisheries lose fish by the tons due to diseases caused by this organism. In 1991, the first reported human case of disease associated with this organism was described. Since this initial case, there have been numerous other reported cases of S. iniae infections. This organism is a catalase negative, facultatively anaerobic organism that produces a capsule and when plated onto blood agar demonstrates β-hemolytic activity.

In this study, the relationship between the hemolysin produced by S. iniae and the lactate …