Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- University of Nebraska - Lincoln (4927)
- TÜBİTAK (2151)
- Morehead State University (1449)
- Department of Primary Industries and Regional Development, Western Australia (1134)
- Utah State University (1109)
-
- University of Arkansas, Fayetteville (993)
- WellBeing International (783)
- Marshall University (669)
- South Dakota State University (627)
- Brigham Young University (583)
- Old Dominion University (446)
- Western Kentucky University (383)
- Nova Southeastern University (240)
- University of Kentucky (239)
- Eastern Illinois University (222)
- University of Texas Rio Grande Valley (202)
- Portland State University (201)
- Louisiana State University (192)
- SIT Graduate Institute/SIT Study Abroad (176)
- City University of New York (CUNY) (160)
- California Polytechnic State University, San Luis Obispo (130)
- The University of Southern Mississippi (127)
- National Taiwan Ocean University (124)
- Central Washington University (120)
- Bemidji State University (112)
- University of Minnesota Morris Digital Well (107)
- University of Nevada, Las Vegas (102)
- Wright State University (99)
- Chapman University (96)
- Clemson University (95)
- Keyword
-
- Western Australia (458)
- Turkey (364)
- Conservation (211)
- Fisheries (194)
- Aquaculture (184)
-
- Ecology (184)
- Reproduction (176)
- Fish (174)
- Biological sciences (171)
- Behavior (170)
- Distribution (170)
- Growth (167)
- Cattle (162)
- Sheep (158)
- Human–wildlife conflicts (156)
- Birds (155)
- Invasive species (147)
- Climate change (142)
- Grus americana (139)
- Taxonomy (126)
- Fishery management (124)
- Biodiversity (123)
- Habitat (118)
- Migration (115)
- Management (110)
- Biology (109)
- Buthidae (104)
- Nebraska (103)
- Grus canadensis (102)
- Experiments (101)
- Publication Year
- Publication
-
- Roger W. Barbour Slide Collection (1387)
- Turkish Journal of Zoology (1302)
- Turkish Journal of Veterinary & Animal Sciences (849)
- United States Department of Agriculture Wildlife Services: Staff Publications (601)
- Department of Animal Science: Faculty Publications (540)
-
- Journal of the Arkansas Academy of Science (448)
- Euscorpius (446)
- Animal Sentience (440)
- Proceedings of the North American Crane Workshop (422)
- Human–Wildlife Interactions (380)
- Theses and Dissertations (368)
- Electronic Theses and Dissertations (362)
- Nebraska Bird Review (360)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (323)
- Fisheries Research Reports (318)
- Fisheries Management Papers (300)
- Graduate Theses and Dissertations (279)
- Brigham Young University Science Bulletin, Biological Series (260)
- University of Nebraska State Museum: Mammalogy Papers (233)
- Biology Faculty Publications (218)
- Masters Theses (211)
- The Kentucky Warbler (207)
- Theses, Dissertations and Capstones (199)
- Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298 (190)
- Department of Animal Science: Dissertations, Theses, and Student Research (173)
- Independent Study Project (ISP) Collection (172)
- Biological Sciences Faculty Publications (167)
- United States Fish and Wildlife Service: Publications (162)
- Nebraska Beef Cattle Reports (157)
- Journal of the Department of Agriculture, Western Australia, Series 4 (138)
- Publication Type
Articles 16951 - 16980 of 21422
Full-Text Articles in Entire DC Network
Fish & Wildlife News: July/August/September 2001
Fish & Wildlife News: July/August/September 2001
Fish and Wildlife News
Contents:
Bush’s Intention to Nominate Service Director 2
Klamath Basin Controversy In-Depth 3
Wyoming Hatchery Helps Great Lakes Fish 5
IAFWA is Key FWS Partner 8
Special Section: Partners Program 9
Partners Can Profit, Too 17
Rebirth of a Prairie 22
Buttermilk Falls Better 27
Check Your Ego at the Door 32
Tribal Lands Key Component in Partners 36
Restoring Habitat Link by Link 39
Fish and Wildlife...In Brief 47
A Cytochrome-B Perspective On Passerina Bunting Relationships, John Klicka, Adam J. Fry, Robert M. Zink, Christopher W. Thompson
A Cytochrome-B Perspective On Passerina Bunting Relationships, John Klicka, Adam J. Fry, Robert M. Zink, Christopher W. Thompson
Ornithology Program (HRC)
We sequenced the complete mitochondrial cytochrome-b gene (1,143 nucleotides) for representatives of each species in the cardinalid genera Passerina (6 species), Guiraca (1 species), and Cyanocompsa (3 species), and used a variety of phylogenetic methods to address relationships within and among genera. We determined that Passerina, as presently recognized, is paraphyletic. Lazuli Bunting (P. amoena) is sister to the much larger Blue Grosbeak (Guiraca caerulea). Indigo Bunting (P. cyanea) and Lazuli Bunting are not sister taxa as generally thought. In all weighted parsimony trees and for the gamma-corrected HKY tree, Indigo Bunting is …
State Of The Fisheries Report 2000/2001, Jim W. Penn
State Of The Fisheries Report 2000/2001, Jim W. Penn
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 aquaculture industries and the Department's Fish and Fish Habitat Protection Program is also provided. In keeping with the Department's significant 2000/2001 initiative to begin …
Increased Plasma Follicle-Stimulating Hormone Concentrations In Prepubertal Gilts From Lines Selected For Increased Number Of Corpora Lutea, J. J. Ford, D. R. Zimmerman, T. H. Wise, K. A. Leymaster, R. K. Christenson
Increased Plasma Follicle-Stimulating Hormone Concentrations In Prepubertal Gilts From Lines Selected For Increased Number Of Corpora Lutea, J. J. Ford, D. R. Zimmerman, T. H. Wise, K. A. Leymaster, R. K. Christenson
Department of Animal Science: Faculty Publications
Plasma follicle-stimulating hormone (FSH) was evaluated in gilts from two studies in which ovulation rate was increased through direct selection for number of corpora lutea (CL) to determine whether selection for ovulation rate affected FSH secretion during prepubertal development. In the first study, 76 control and 110 selected gilts of University of Nebraska gene pool lines were bled twice during prepubertal development. Plasma FSH concentrations were greater (P < 0.05) at 53 (13.5%) and 75 (21.3%) d of age in selected than in control gilts. In the second study, 254 control gilts, 261 gilts from a line selected for ovulation rate, and 256 gilts from a line selected for uterine capacity were bled at three prepubertal ages. Plasma FSH was greater (P < 0.05), relative to controls, on d 34 (> 24%), 55 (> 13%), and 85 (> 10%) in White Composite gilts selected for either increased ovulation rate or for greater uterine capacity. Unilateral ovariectomy and hysterectomy were performed at …
Evolution Of A Scientific Meeting: Eighty Annual Meetings Of The American Society Of Mammalogists, 1919-2000, Hugh H. Genoways, Patricia W. Freeman
Evolution Of A Scientific Meeting: Eighty Annual Meetings Of The American Society Of Mammalogists, 1919-2000, Hugh H. Genoways, Patricia W. Freeman
University of Nebraska State Museum: Mammalogy Papers
The American Society of Mammalogists has held 80 annual meetings between 1919 and 2000. These meetings have been held in 32 U.S. states, the District of Columbia, Canada, and Mexico. At least 86 people have served as the chair or co-chair of the Local Committee planning the meetings. The number of technical presentations has grown from a low of 17 in 1921 to 340 in 1994. Symposia were an early feature of annual meetings but did not become a regular feature until 1971. Poster presentations were introduced in 1979 and reached a high of 195 posters at the 1994 annual …
Book Review Of "Ecology And Conservation Of Grassland Birds Of The Western Hemisphere", Eric K. Bollinger
Book Review Of "Ecology And Conservation Of Grassland Birds Of The Western Hemisphere", Eric K. Bollinger
Faculty Research & Creative Activity
This book review appeared in The Auk, Volume 118 No. 3 (July 2001).
Book Review Of "Ecology And Conservation Of Grassland Birds Of The Western Hemisphere", Eric Bollinger
Book Review Of "Ecology And Conservation Of Grassland Birds Of The Western Hemisphere", Eric Bollinger
Faculty Research & Creative Activity
This book review appeared in The Auk, Volume 118 No. 3 (July 2001).
Fisheries Research Report No. 126 - A 12-Month Survey Of Recreational Fishing In The Swan-Canning Estuary Basin Of Western Australia During 1998-99, B E. Malseed, Neil R. Sumner
Fisheries Research Report No. 126 - A 12-Month Survey Of Recreational Fishing In The Swan-Canning Estuary Basin 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 Swan-Canning Estuary Basin was conducted between August 1998 and July 1999. During the survey 1,302 interviews were conducted at boat ramps. The majority of these (62%) were not involved in fishing or crabbing activities, with a further 18 per cent fishing in the adjacent ocean. Of the remainder, 139 boats had been crabbing and 154 angling (29 were both crabbing and angling) within the Swan-Canning Estuary Basin. In addition to the interviews at boat ramps, 378 shore-based fishing parties were interviewed.
The survey estimated the total annual boat-based recreational fishing …
Fisheries Research Report No.128 - Aquaculture And Related Biological Attributes Of Abalone Species In Australia - A Review., Kylie A. Freeman
Fisheries Research Report No.128 - Aquaculture And Related Biological Attributes Of Abalone Species In Australia - A Review., Kylie A. Freeman
Fisheries Research Reports
China and Taiwan are the major producers of cultured abalone; with annual production estimated at 3,500 and 3,000 tonnes respectively. The world production of cultured abalone sold in 1999 was 7,775 tonnes. Australian farm production was still relatively low (89 tonne in 1999) but numerous abalone farms have been proposed and many have been constructed. On a national scale, Tasmania and South Australia are the major states involved in temperate abalone culture; however, new projects have commenced in Victoria and considerable interest exists in New South Wales. Pilot scale trials with tropical abalone aquaculture using the Donkey-ear abalone (Haliotis asinina) …
Fish Protection Measures To Ensure Fish For The Future, Jo Bunting
Fish Protection Measures To Ensure Fish For The Future, Jo Bunting
Fisheries Management Papers
The protection of Western Australia's aquatic animals, plants and habitats is important for many reasons. Fish, and many aquatic invertebrates, have significant commercial, recreational and social importance. Aquatic habitats provide food, refuge and breeding areas for fish and other animals. In addition, some habitats, such as rocky reefs and seagrass meadows, act as nursery sites for juvenile animals. Some habitats and their inhabitants (such as coral reefs) also have aesthetic values which support economically and socially important industries, such as tourism.
The Mayfly Newsletter, Peter M. Grant
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.
1999 (Eleventh) Report Of The Nou Records Committee, Joel G. Jorgensen
1999 (Eleventh) 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 nine times (Mollhoff 1989, Grenon 1990, Grenon 1991, Gubanyi 1996a, Gubanyi 1996b, Gubanyi 1996c, Brogie 1997, Brogie 1998, Brogie 1999). An update of the OFFICIAL LIST OF THE BIRDS OF NEBRASKA was first published in 1997 (NOU …
Marek's Disease Virus (Mdv) Encodes An Interleukin-8 Homolog (Vil-8): Characterization Of The Vil-8 Protein And A Vil-8 Deletion Mutant Mdv, Mark S. Parcells, Su-Fang Lin, Robert L. Dienglewicz, Vladimir Majerciak, Dan R. Robinson, Hua-Chien Chen, Zining Wu, George R. Dubyak, Peter Brunovskis, Henry D. Hunt
Marek's Disease Virus (Mdv) Encodes An Interleukin-8 Homolog (Vil-8): Characterization Of The Vil-8 Protein And A Vil-8 Deletion Mutant Mdv, Mark S. Parcells, Su-Fang Lin, Robert L. Dienglewicz, Vladimir Majerciak, Dan R. Robinson, Hua-Chien Chen, Zining Wu, George R. Dubyak, Peter Brunovskis, Henry D. Hunt
Dartmouth Scholarship
Chemokines induce chemotaxis, cell migration, and inflammatory responses. We report the identification of an interleukin-8 (IL-8) homolog, termed vIL-8, encoded within the genome of Marek's disease virus (MDV). The 134-amino-acid vIL-8 shares closest homology to mammalian and avian IL-8, molecules representing the prototype CXC chemokine. The gene for vIL-8 consists of three exons which map to the BamHI-L fragment within the repeats flanking the unique long region of the MDV genome. A 0.7-kb transcript encoding vIL-8 was detected in an n-butyrate-treated, MDV-transformed T-lymphoblastoid cell line, MSB-1. This induction is essentially abolished by cycloheximide and herpesvirus DNA polymerase inhibitor phosphonoacetate, indicating …
Ecology Of Audubon's Shearwaters (Puffinus Lherminieri) At San Salvador, Bahamas, Neville Anthony Trimm Jr.
Ecology Of Audubon's Shearwaters (Puffinus Lherminieri) At San Salvador, Bahamas, Neville Anthony Trimm Jr.
Loma Linda University Electronic Theses, Dissertations & Projects
The Audubon's Shearwater (Pqffinus lherminieri), nearly pantropical in distribution, remains a poorly studied species. The subspecies P. l. lherminieri is endemic to the West Indies region. An estimated 5,000 pairs inhabit the Caribbean, but there has been a substantial decline with many colonies becoming extirpated. It is thought that as many as 3,000 pairs (60% of the West Indian population) nest in the Bahamas. In May and June of 2000, I collected data on shearwater demographics, colony site selection, burrow microhabitat, chick behavior and the effect of moonlight on the onset of calling of the Audubon's Shearwaters nesting on …
Comments On Nebraska's Falconiform And Strigiform Bird Fauna, Paul A. Johnsgard
Comments On Nebraska's Falconiform And Strigiform Bird Fauna, Paul A. Johnsgard
Papers in Ornithology
Owing to a lack of long-term survey data, determining whether Nebraska's raptor numbers are stable, increasing, or decreasing is difficult. Unlike our relatively well-monitored gamebirds, no regular surveys have been performed, and raptors barely register on the state's Breeding Bird Surveys or Christmas Bird Counts, owing to their relative rarity. However, a few data-points of interest do exist, which might be worth summarizing.
Evaluation Of Mirrors To Deter Nesting Starlings, Thomas W. Seamans, Charles D. Lovell, Richard A. Dolbeer, Jonathon D. Cepek
Evaluation Of Mirrors To Deter Nesting Starlings, Thomas W. Seamans, Charles D. Lovell, Richard A. Dolbeer, Jonathon D. Cepek
United States Department of Agriculture Wildlife Services: Staff Publications
European starlings (Sturnus vulgaris) nesting in buildings and other structures can cause health, nuisance, and safety problems. We evaluated effectiveness of flashing lights combined with mirrors, and mirrors alone, as deterrents for starlings nesting in starling nest boxes in northern Ohio, 1998-2000. Each year, 100 nest boxes attached to utility poles were randomly assigned equally among 4 treatments (including untreated boxes): 1998- mirrored (internally placed on the back and 2 side walls of nest boxes), mirrored with red-flashing lights, and mirrored with green-flashing lights; 1999-convex mirror above entrance hole, convex mirror at back of nest box, and flat …
First Nesting Records Of The Black Phoebe (Sayornis Nigricans) In Southernmost Texas, Timothy Brush
First Nesting Records Of The Black Phoebe (Sayornis Nigricans) In Southernmost Texas, Timothy Brush
School of Integrative Biological & Chemical Sciences (Formerly Dept. of Biology)
No abstract provided.
Mirror Self-Recognition In The Bottlenose Dolphin: A Case Of Cognitive Convergence, Diana Reiss, Lori Marino
Mirror Self-Recognition In The Bottlenose Dolphin: A Case Of Cognitive Convergence, Diana Reiss, Lori Marino
Sentience Collection
The ability to recognize oneself in a mirror is an exceedingly rare capacity in the animal kingdom. To date, only humans and great apes have shown convincing evidence of mirror self-recognition. Two dolphins were exposed to reflective surfaces, and both demonstrated responses consistent with the use of the mirror to investigate marked parts of the body. This ability to use a mirror to inspect parts of the body is a striking example of evolutionary convergence with great apes and humans.
Kentucky Warbler (Vol. 77, No. 2), Kentucky Library Research Collections
Kentucky Warbler (Vol. 77, No. 2), Kentucky Library Research Collections
The Kentucky Warbler
No abstract provided.
Detection Of The Phototoxic Dye Phloxine B In Anastrepha Ludens (Loew) (Diptera: Tephritidae), Apis Mellifera Linnaeus (Hymenoptera: Apidae) And Honey, Aleena M. Tarshis Moreno
Detection Of The Phototoxic Dye Phloxine B In Anastrepha Ludens (Loew) (Diptera: Tephritidae), Apis Mellifera Linnaeus (Hymenoptera: Apidae) And Honey, Aleena M. Tarshis Moreno
Theses and Dissertations - UTB/UTPA
A spectrophotometric method for detection of phloxine B, a phototoxic dye proposed as a replacement for malathion bait sprays, in extracted tissues of Anastrepha ludens, Apis mellifera and in honey was developed. Dye detection was increased with a pH change from 6 to 13.7 in tissues or from 3.7 to 8 in honey with 2% sodium hydroxide. An LC 50 of 29.62 ppm phloxine B in 30% sucrose was obtained by feeding honey bees. A predictive model for dye in insect tissues and honey was developed and shown to be 89–92% effective. This study provides a forensic approach to determine …
Comparison Of Rodent Communities Of Native Brushland, Replanted, And Secondary Succession Sites In The Lower Rio Grande Valley Of Texas, Mitchell Allen Sternberg
Comparison Of Rodent Communities Of Native Brushland, Replanted, And Secondary Succession Sites In The Lower Rio Grande Valley Of Texas, Mitchell Allen Sternberg
Theses and Dissertations - UTB/UTPA
I compared small mammal communities between mature brushlands, replanted brushlands, and secondary succession sites from November 1998 to December 1999 to evaluate revegetation efforts in the Lower Rio Grande Valley of Texas. I determined rodent community characteristics of the three habitat types. The mature brushland and replanted habitats had similar species diversities and both were significantly higher than the secondary succession habitat. Species diversity was highest at the replanted edge grid during Winter. The current replanting method provides a more diverse rodent community than does natural succession from fallow fields. Wildlife monitoring should be extended to other taxonomic guilds so …
Wpa News 65 (2001), World Pheasant Association
Wpa News 65 (2001), World Pheasant Association
Galliformes Specialist Group and Affiliated Societies: Newsletters
WPA News (May 2001), number 65
Published by the World Pheasant Association
Natural History And Roosting Ecology Of The Eastern Pipistrelle, Pipistrellus Subflavus, Jacques Pierre Veilleux
Natural History And Roosting Ecology Of The Eastern Pipistrelle, Pipistrellus Subflavus, Jacques Pierre Veilleux
All-Inclusive List of Electronic Theses and Dissertations
A study concerning the natural history and roosting ecology of the eastern pipistrelle, Pipistrellus subtlavus, was conducted from 1997 to 2000, in southern Vigo County, Indiana. 111 Females began forming pre-maternity colonies during early May, and parturition began during late June. Pre-maternity colonies averaged 3.7 ± 1.9 individuals, and maternity colonies averaged 4.4 ± 2.4 individuals. Young pipistrelles first became volant during the third and fourth weeks of July. Pipistrelles were located in 59 roost trees. All roosts were located in foliage, either in clusters of dead leaves (n = 40) or in live foliage (n = 19). Oaks (Ouercus …
2001 Waterfowl Breeding Population Survey For South Dakota And North Dakota
2001 Waterfowl Breeding Population Survey For South Dakota And North Dakota
United States Fish and Wildlife Service: Publications
The 2001 Waterfowl Breeding Ground and Habitat Survey for South and North Dakota was conducted 7 - 28 May with standard aerial coverage accomplished. Personnel changes occurred this year in both the air and ground crew. Habitat conditions were good to excellent through out most of the crew area. Compared to 2000 levels, wetland counts increased 58% in South Dakota and were similar (2%) in North Dakota. Waterfowl breeding populations were second and third highest of record for South Dakota (4.301 million) and North Dakota (5.767 million), respectively. The outlook for waterfowl production in 2001 is above average.
The Links Between Functionally Distinct Adult Assemblages Of Sardinops Sagax : Larval Advection Across Management Boundaries, Daniel J. Gaughan, K V. White, Warrick (Rick) J. Fletcher
The Links Between Functionally Distinct Adult Assemblages Of Sardinops Sagax : Larval Advection Across Management Boundaries, Daniel J. Gaughan, K V. White, Warrick (Rick) J. Fletcher
Fisheries Research Articles
Otolith increment data were used to age larval Sardinops sagax collected from shelf waters between Kangaroo Island in South Australia (SA) and Albany in Western Australia (WA). Distributions of both ages and hatch-dates were compared between six regions across this broad area to examine the hypothesis that larvae arising from spawning sardines in WA may be advected by the Leeuwin Current to the central coast of SA prior to metamorphosis. Current and wind data were analysed to estimate potential rates of passive transport. It appears likely that larvae arising from commercially exploited S. sagax populations in WA can be passively …
The Taxonomic Rank Of Spizella Taverneri: A Response To Mayr And Johnson, John Klicka, Robert M. Zink, Jon C. Barlow, W. Bruce Mcgillivray, Terry J. Doyle
The Taxonomic Rank Of Spizella Taverneri: A Response To Mayr And Johnson, John Klicka, Robert M. Zink, Jon C. Barlow, W. Bruce Mcgillivray, Terry J. Doyle
Ornithology Program (HRC)
Mayr and Johnson suggest that Spizella taverneri should be a subspecies of the biological species S. breweri, because it is possibly not reproductively isolated. We originally concluded that evidence from mitochondrial DNA sequences, habitat preferences, timing of breeding, vocalizations, and morphology supported the recognition of S. taverneri as a phylogenetic and biological species. Nothing in the commentary by Mayr and Johnson causes us to change that conclusion. We believe that it is probable that these two allopatric taxa are isolated. Contrary to Mayr and Johnson, we believe that more information is given by ranking S. taverneri as a species, because …
Development Of A Bird-Avoidance Model For Naval Air Facility El Centro, California, Edward J. Zakrajsek
Development Of A Bird-Avoidance Model For Naval Air Facility El Centro, California, Edward J. Zakrajsek
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Bird strikes (collisions between birds and aircraft) pose a significant threat to aviation safety. For example, Naval Air Facility El Centro, California, lost an F-18 jet to a bird strike in October 1995. To help combat the bird-strike threat at Naval Air Facility El Centro, I developed a bird-avoidance model as a risk-management tool for the installation. It can be used to schedule flights at NAF El Centro and its two associated practice-bombing ranges during times of low-bird activity. I calculated bird-strike risks and published them in web-page format on both the installation's server and the USGS/Utah State University, College …
Reproductive Allocation And Survival In Grasshoppers: Effects Of Resource Availability, Grasshopper Density, And Parasitism, David Heath Branson
Reproductive Allocation And Survival In Grasshoppers: Effects Of Resource Availability, Grasshopper Density, And Parasitism, David Heath Branson
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
A major challenge in ecology is to understand intraspecific variation in life histories. Variation in resource availability can lead to differences in reproductive allocation and life histories. Grasshoppers are a good organism for the study of variation in life histories, since they exhibit life history plasticity in response to biotic and environmental factors. An optimality model for grasshoppers was developed that predicts optimal total allocation to reproduction and optimal effort-per-offspring as functions of resource availability and mortality. Relative allocation to reproduction is predicted to increase with resource availability, while relative allocation to survival declines. A resource-based trade-off between egg size …
Rangeland Resources Monitoring: Concepts And Practical Applications, Benny R. Bobwski
Rangeland Resources Monitoring: Concepts And Practical Applications, Benny R. Bobwski
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
How does one person manage and monitor a half million acres of rangelands towards a sustainable future? Through a journey that begins with the understanding of sustainability, I explore the monitoring concept, two of its applications, and summarize with an emphasis on the art and science of management. Sustainability is a concept that confuses many managers because it is so complex. However, if one considers adaptability as the complement to sustainability, and realizes that an adaptable organism is a sustainable organism, then a manager can relate because the emphasis shifts from that of stability for the future to that of …
Effectiveness Of Earthen Escape Ramps In Reducing Big Game Mortality In Utah, Mary L. Hammer
Effectiveness Of Earthen Escape Ramps In Reducing Big Game Mortality In Utah, Mary L. Hammer
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
One-way escape gates and earthen escape ramps are structures used to enable deer to exit the highway right-of-way along fenced roads. I compared the use of one-way escape gates and earthen escape ramps by mule deer on two highways in Utah to determine if deer exhibited a preference for either structure. Results showed that earthen escape ramps were used by mule deer 8-11 times more frequently than one-way gates. Highway mortality data suggest that the installation of the escape ramps likely reduced mortality of mule deer in both study locations, because we could not attribute reductions in mortality to decreased …