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2003

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Articles 91 - 120 of 604

Full-Text Articles in Animal Sciences

Terrestrial Natural Communities Of Nebraska (Version Iii - June 30, 2005), Gerry Steinauer, Steven B. Rolfsmeier Jun 2003

Terrestrial Natural Communities Of Nebraska (Version Iii - June 30, 2005), Gerry Steinauer, Steven B. Rolfsmeier

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

For more than a decade, The Nature Conservancy (TNC) and state natural heritage programs, including the Nebraska Natural Heritage Program (NNHP), have used a “coarse filter/fine filter” approach to preserving biological diversity (The Nature Conservancy, 1994). This approach involves identification and protection of natural communities (coarse filter) as well as rare species (fine filter). Identifying and protecting representative examples of natural communities ensures conservation of most species, biotic interactions and ecological processes. Those species that “fall through” the community filters are generally the rare species. Identification and protection of viable occurrences of rare species serves as the fine filter for …


State Of The Fisheries Report 2002/2003, Jim W. Penn, F Head Jun 2003

State Of The Fisheries Report 2002/2003, Jim W. Penn, F Head

Status Reports of the Fisheries and Aquatic Resources

The State of the Fisheries document is designed as an essential supplement to the Annual Report to Parliament and provides a more detailed level of information to support the Department of Fisheries' non-financial performance measures. By summarising management changes, compliance activities and research data including stock assessments and breeding stock levels, this document provides a valuable reference point for Western Australian fisheries of major importance to the commercial and recreational sectors. Information relevant to the State's developing aquaculture industries and the Department's Fish and Fish Habitat Protection Program is also provided. This year's report follows the ecologically sustainable development (ESD) …


Developmental Toxicity Of Atrazine And Copper Sulfate Using The Frog Embryo Teratogenesis Assay-Xenopus (Fetax), Misty D. Hamilton Jun 2003

Developmental Toxicity Of Atrazine And Copper Sulfate Using The Frog Embryo Teratogenesis Assay-Xenopus (Fetax), Misty D. Hamilton

Morehead State Theses and Dissertations

A thesis presented to the faculty of the College of Science and Technology at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science by Misty D. Hamilton on June 25, 2003.


West Indian Mammals From The Albert Schwartz Collection: Biological And Historical Information, Robert M. Timm, Hugh H. Genoways Jun 2003

West Indian Mammals From The Albert Schwartz Collection: Biological And Historical Information, Robert M. Timm, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

In the period 1954-1976, Albert Schwartz and several students working with him made extensive collections of mammals (ca. 2,000 specimens), reptiles and amphibians, birds, and butterflies in the West Indies. Schwartz's private collection of mammals from the West Indies is among the most comprehensive and important mammal collections from the region, yet much of it has never been reported in the scientific literature. Schwartz's original intent was to fully document all of the terrestrial mammals of the West Indies. In 1989, Schwartz transferred his mammal collection of some 6,500 specimens to the University of Kansas, and included in that collection …


Do Fishes Have Nociceptors? Evidence For The Evolution Of A Vertebrate Sensory System, Lynne U. Sneddon, Victoria A. Braithwaite, Michael J. Gentle Jun 2003

Do Fishes Have Nociceptors? Evidence For The Evolution Of A Vertebrate Sensory System, Lynne U. Sneddon, Victoria A. Braithwaite, Michael J. Gentle

Veterinary Science and Medicine Collection

Nociception is the detection of a noxious tissue-damaging stimulus and is sometimes accompanied by a reflex response such as withdrawal. Pain perception, as distinct from nociception, has been demonstrated in birds and mammals but has not been systematically studied in lower vertebrates. We assessed whether a fish possessed cutaneous nociceptors capable of detecting noxious stimuli and whether its behavior was sufficiently adversely affected by the administration of a noxious stimulus. Electrophysiological recordings from trigeminal nerves identified polymodal nociceptors on the head of the trout with physiological properties similar to those described in higher vertebrates. These receptors responded to mechanical pressure, …


Considering Animals—Not “Higher” Primates, Marc Bekoff Jun 2003

Considering Animals—Not “Higher” Primates, Marc Bekoff

Sentience Collection

In this essay I argue that many nonhuman animal beings are conscious and have some sense of self. Rather than ask whether they are conscious, I adopt an evolutionary perspective and ask why consciousness and a sense of self evolved—what are they good for? Comparative studies of animal cognition, ethological investigations that explore what it is like to be a certain animal, are useful for answering this question. Charles Darwin argued that the differences in cognitive abilities and emotions among animals are differences in degree rather than differences in kind, and his view cautions against the unyielding claim that humans, …


Fisheries Occasional Publications No. 4 - Research Project Assessment - A Decision Framework, W. J. Fletcher, J. W. Penn, H. G. Brayford Jun 2003

Fisheries Occasional Publications No. 4 - Research Project Assessment - A Decision Framework, W. J. Fletcher, J. W. Penn, H. G. Brayford

Fisheries Occasional Publications

Determining the relative priority for research proposals within an agency such as the Department of Fisheries, particularly when they are from different program areas, is a difficult task to achieve effectively. Traditionally within the Department, this task has been completed by a sub-group of the executive who have used their combined understanding of the broader issues and their experience of what has been done before and what is most likely to succeed. Such a system, while it has produced satisfactory outcomes, suffers from a lack of transparency and may be at longer-term risk when personnel changes occur and corporate knowledge …


Masthead From Nebraska Bird Review June 2003 Volume 71 Number 2 Jun 2003

Masthead From Nebraska Bird Review June 2003 Volume 71 Number 2

Nebraska Bird Review

The Nebraska Bird Review (http://rip.physics.unk.edu/NOUI) 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; …


Towards Sustainability Of Data-Limited Multi-Sector Fisheries: Australian Society For Fish Biology Workshop Proceedings September 2001 - Fisheries Occasional Publication No. 5, Stephen J. Newman, Daniel J. Gaughan, Gary Jackson, Michael C. Mackie, Brett W. Molony, Jill St John, Patricia Kailola Jun 2003

Towards Sustainability Of Data-Limited Multi-Sector Fisheries: Australian Society For Fish Biology Workshop Proceedings September 2001 - Fisheries Occasional Publication No. 5, Stephen J. Newman, Daniel J. Gaughan, Gary Jackson, Michael C. Mackie, Brett W. Molony, Jill St John, Patricia Kailola

Fisheries Occasional Publications

No abstract provided.


Comparative Genome Organization Of Human, Murine, And Feline Mhc Class Ii Region, Naoya Yuhki, Thomas W. Beck, Robert M. Stephens, Yoko Nishigaki, Kymberly Newmann, Stephen J. O'Brien Jun 2003

Comparative Genome Organization Of Human, Murine, And Feline Mhc Class Ii Region, Naoya Yuhki, Thomas W. Beck, Robert M. Stephens, Yoko Nishigaki, Kymberly Newmann, Stephen J. O'Brien

Biology Faculty Articles

To study comparative molecular dynamics in the genesis of the major histocompatibility complex (MHC), we determined a complete nucleotide sequence spanning 758,291 bp of the domestic cat (Felis catus) extended and classical class II region. The feline class II MHC includes 44 genes (31 predicted to be expressed) which display DNA sequence homology and ordered gene synteny with human HLA and mouse H2, in extended class II and centromere proximal regions (DM to DO) of the classical class II region. However, remarkable genomic alterations including gene gain and loss plus size differentials of 250 kb are …


2001 (13th) Report Of The Nou Records Committee, Joel G. Jorgensen Jun 2003

2001 (13th) Report Of The Nou Records Committee, Joel G. Jorgensen

Nebraska Bird Review

The functions and methods of the NOU Records Committee are described in its bylaws (NOU Records Committee 1986). The committee's purpose is to provide a procedure for documenting unusual bird sightings and to establish a list of all documented birds for Nebraska.

THE OFFICIAL LIST OF THE BIRDS OF NEBRASKA was first published in 1988 (NOU Records Committee 1988) and has been appended eleven times (Moll hoff 1989, Grenon 1990, Grenon 1991, Gubanyi 1996a, Gubanyi 1996b, Gubanyi 1996c, Brogie 1997, Brogie 1998, Brogie 1999, Jorgensen 2001 and Jorgensen 2002).

An update of the OFFICIAL LIST OF THE BIRDS OF NEBRASKA …


Spring Field Report, March-May 2003, W. Ross Silcock Jun 2003

Spring Field Report, March-May 2003, W. Ross Silcock

Nebraska Bird Review

This spring was characterized by a lack of significant ornithological events, although readers will find tidbits of interest under the following species: Greater White-fronted Goose, Mandarin Duck (believe it or not), Common Merganser, Peregrine Falcon, Buff-breasted Sandpiper, Great Horned Owl, and Blue-winged Warbler. A significant concentration of warblers and flycatchers was detected at Walnut Grove Park in Omaha in late May; check the species accounts for details. The restoration of prairie grasslands at Boyer Chute NWR seems to be paying off; Henslow's Sparrows were found there this spring for the first time. There were several new high counts, with perhaps …


Nebraska Bird Review Whole Issue June 2003 Volume 71 Number 2 Jun 2003

Nebraska Bird Review Whole Issue June 2003 Volume 71 Number 2

Nebraska Bird Review

Table of Contents

Spring Field Report, March-May 2003
Compiled by W. Ross Silcock ..........................58

Species Accounts ..........................62

2001 (13th) Report of the NOU Records Committee
Compiled by Joel G. Jorgensen..........................97


Trigeminal Somatosensory Innervation Of The Head Of A Teleost Fish With Particular Reference To Nociception, Lynne U. Sneddon May 2003

Trigeminal Somatosensory Innervation Of The Head Of A Teleost Fish With Particular Reference To Nociception, Lynne U. Sneddon

Veterinary Science and Medicine Collection

Trigeminal somatosensory receptors have not been characterised in teleost fish and studies in elasmobranchs have failed to identify nociceptors. The present study examined the trigeminal nerve of a teleost fish, the rainbow trout (Oncorhynchus mykiss) to determine what types of somatosensory receptors were present on the head of the trout specifically searching for nociceptors. Single unit recordings were made from receptive fields on the head of the fish innervated by the trigeminal nerve. Each receptive field was tested for sensitivity to mechanical, thermal and chemical stimulation. Five different receptor types were found: fast adapting receptors responding to mechanical stimulation; slowly …


Enhancement Of Ehrlichia Canis Infection Of Canine Blood Monocytes In Vitro Through The Addition Of Seropositive And Monoclonal Antibody, John Paul Gniady May 2003

Enhancement Of Ehrlichia Canis Infection Of Canine Blood Monocytes In Vitro Through The Addition Of Seropositive And Monoclonal Antibody, John Paul Gniady

Honors Capstones

No abstract provided.


2002 Annual Report, Various Authors May 2003

2002 Annual Report, Various Authors

Annual Reports

No abstract provided.


Life History Of The Northern Madtom, Noturus Stigmosus (Siluriformes: Ictaluridae), In The Licking River, Kentucky, Jonathan F. Scheibly May 2003

Life History Of The Northern Madtom, Noturus Stigmosus (Siluriformes: Ictaluridae), In The Licking River, Kentucky, Jonathan F. Scheibly

Morehead State Theses and Dissertations

A thesis presented to the faculty of the College of Science and Technology at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science by Jonathan F. Scheibly on May 9, 2003.


Kentucky Warbler (Vol. 79, No. 2), Kentucky Library Research Collections May 2003

Kentucky Warbler (Vol. 79, No. 2), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.


Reconstructing Cetacean Brain Evolution Using Computed Tomography, Lori Marino, Mark D. Uhen, Nicholas D. Pyenson, Bruno Frohlich May 2003

Reconstructing Cetacean Brain Evolution Using Computed Tomography, Lori Marino, Mark D. Uhen, Nicholas D. Pyenson, Bruno Frohlich

Veterinary Science and Medicine Collection

Until recently, there have been relatively few studies of brain mass and morphology in fossil cetaceans (dolphins, whales, and porpoises) because of difficulty accessing the matrix that fills the endocranial cavity of fossil cetacean skulls. As a result, our knowledge about cetacean brain evolution has been quite limited. By applying the noninvasive technique of computed tomography (CT) to visualize, measure, and reconstruct the endocranial morphology of fossil cetacean skulls, we can gain vastly more information at an unprecedented rate about cetacean brain evolution. Here, we discuss our method and demonstrate it with several examples from our fossil cetacean database. This …


Draft Aboriginal Fishing Strategy. Frequently Asked Questions., Department Of Fisheries., Aboriginal And Torres Strait Islander Commission., Fisheries Research And Development Corporation., Department Of Indigenous Affairs. May 2003

Draft Aboriginal Fishing Strategy. Frequently Asked Questions., Department Of Fisheries., Aboriginal And Torres Strait Islander Commission., Fisheries Research And Development Corporation., Department Of Indigenous Affairs.

Fisheries Management Papers

This document is not the draft Aboriginal Fishing Strategy report, but a summary of the most frequently asked questions about the draft report. Submissions should only be made on specific recommendations found in the draft report.


Aboriginal Fishing Strategy : Recognising The Past, Fishing For The Future. Draft Report To The Minister For Agriculture, Forestry And Fisheries, Department Of Fisheries., Aboriginal And Torres Strait Islander Commission., Fisheries Research And Development Corporation., Department Of Indigenous Affairs. May 2003

Aboriginal Fishing Strategy : Recognising The Past, Fishing For The Future. Draft Report To The Minister For Agriculture, Forestry And Fisheries, Department Of Fisheries., Aboriginal And Torres Strait Islander Commission., Fisheries Research And Development Corporation., Department Of Indigenous Affairs.

Fisheries Management Papers

The draft Aboriginal Fishing Strategy report is a comprehensive effort to recognise the interests of Aboriginal people in the protection and use of fish resources in Western Australia. It is perhaps the most comprehensive report of its kind in Australia. As this Government moves toward a more integrated approach to the management of fish resources this report is timely, and represents an opportunity to ensure Aboriginal fishing interests are given appropriate recognition in a more holistic approach to ensuring fish stocks are sustained for future generations.


Fish & Wildlife News: Spring 2003 (Special Edition) May 2003

Fish & Wildlife News: Spring 2003 (Special Edition)

Fish and Wildlife News

Contents:

Prelude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Director’s Corner: Looking Back, Looking Forward . . . . . . . . . . . . . 2
System of Lands for Wildlife and People for Today and Tomorrow . . 3
Future of the Refuge System. …


Conservations Practices And Programs For Your Farm May 2003

Conservations Practices And Programs For Your Farm

United States Fish and Wildlife Service: Publications

Contents:

Conserving croplands

Improving water quality

Managing for Wildlife


Breeding Bird Communities Of Major Mainland Rivers Of Southeastern Alaska, Jim A. Johnson May 2003

Breeding Bird Communities Of Major Mainland Rivers Of Southeastern Alaska, Jim A. Johnson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Because of the scarcity of information for bird communities at the major mainland rivers of southeastern Alaska, the main objective of this study was to provide baseline information including distribution, status, and habitat associations of breeding birds.

I conducted a meta-analysis of all known reports (including the current study) conducted at major mainland rivers during the breeding season. I described bird species composition, distribution, abundance estimates, status, habitat associations, and guild membership for all birds recorded at 11 major mainland rivers. Based on incidental observations, 170 species were recorded by all studies. Of these, 134 species were known or suspected …


Modeling Habitat Quality For American Martens In Western Newfoundland, Canada, William A. Adair May 2003

Modeling Habitat Quality For American Martens In Western Newfoundland, Canada, William A. Adair

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The "Den Mother" marten habitat quality models were created to provide insight into American marten habitat selection behavior and to promote the recovery of the Newfoundland marten (Martes americana atrata) population. Although these objectives are typical of most wildlife habitat modeling projects, the marten's idiosyncratic habitat ecology and apparently intractable conflicts associated with timber harvesting motivated a unique, process-oriented approach to appraising landscapes. The Den Mother models used optimal decision-making principles to synthesize critical resources (den sites and foraging opportunities) and constraints (adverse thermal situations and exposure to predations) into a single hierarchical framework. The resulting spatially explicit, …


Rapid Effects Of 25-Hydroxyvitamin D3 On Calcium Uptake In Isolated Chick Enterocytes, Ruta Phadnis May 2003

Rapid Effects Of 25-Hydroxyvitamin D3 On Calcium Uptake In Isolated Chick Enterocytes, Ruta Phadnis

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

25-Hydroxyvitamin D3[25(OH)D3] is a metabolite of vitamin D3 that has long been considered to be an inactive precursor of the hormonally active metabolite 1,25- dihydroxyvitamin D3[l,25(OH)2D3]; consequently very few studies have addressed the potential biological activity of 25(OH)2D3. However, it is known that 100 nM 25(OH)2D3 increases calcium transport in the perfused duodenal loop of the chicken to 200% of controls within 20 minutes. The hypothesis of the current study is that 25(OH)2D3 may be a hormonally active metabolite …


Assessing The Benefits Of Misting–Cooling Systems For Growing/Finishing Swine As Affected By Environment And Pig Placement Date, Thomas C. Bridges, Larry W. Turner, Richard S. Gates, Douglas G. Overhults May 2003

Assessing The Benefits Of Misting–Cooling Systems For Growing/Finishing Swine As Affected By Environment And Pig Placement Date, Thomas C. Bridges, Larry W. Turner, Richard S. Gates, Douglas G. Overhults

Biosystems and Agricultural Engineering Faculty Publications

The NCPIG swine growth model was used to evaluate swine growth performance for Wilmington, North Carolina; Bardstown and Mayfield, Kentucky; and Oklahoma City, Oklahoma as influenced by the use of a misting–cooling system. Five pig placement dates (Julian days 106, 126, 146, 166, and 186) were evaluated for each location using 22 years of weather data (1978–1999). The use of a misting system, while quite variable, was found to be generally profitable, reducing the length of the time to reach market weight. As the placement date increased, the average return to misting ($/pig/year) decreased from $8.12 to $1.98 for Oklahoma …


Continuing Studies Of Water Quality In Farmington Bay And The Great Salt Lake, Utah, Amy M. Marcarelli, Wayne A. Wurtsbaugh May 2003

Continuing Studies Of Water Quality In Farmington Bay And The Great Salt Lake, Utah, Amy M. Marcarelli, Wayne A. Wurtsbaugh

Watershed Sciences Faculty Publications

For the past three years, an Aquatic Ecology Practicum class at Utah State University has conducted research examining the limnology of Farmington Bay. In 2000, our class discovered that Farmington Bay could be classified as hypereutrophic, and had significantly higher levels of chlorophyll and phytoplankton than the Great Salt Lake proper (Marcarelli et al. 2001). In 2001, individual student projects identified high phosphorus loading into Farmington Bay from surrounding sewage treatment plants, brine shrimp biomass five times lower than in the Great Salt Lake, and that the water in the bay lost all oxygen on a windy night in October …


The Mayfly Newsletter, Peter M. Grant May 2003

The Mayfly Newsletter, Peter M. Grant

The Mayfly Newsletter

The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.


Fluctuations In Chinook Salmon (Oncorhynchus Tshawytscha) Counts At Three Lower Columbia River Spawning Sites, Eric Michael Loomis May 2003

Fluctuations In Chinook Salmon (Oncorhynchus Tshawytscha) Counts At Three Lower Columbia River Spawning Sites, Eric Michael Loomis

UNLV Theses, Dissertations, Professional Papers, and Capstones

Several hypotheses were developed to explore the pronounced increase in Chinook salmon (Oncorhynchus tshawytscha) returning to spawning grounds at the Cowlitz, Kalama, and Lewis Rivers, three tributaries of the lower Columbia River. The study was conducted using data compiled over a ten-year span from 1991-2001. Preliminary indications are that trends in climate are linked to these increases, with the absence of El Niño events and fluctuations in winter precipitation as likely explanations of these phenomena. The unique nature of Chinook life cycles causes them to utilize a variety of habitats that require ideal conditions for maximum survival rates. Correlations between …