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Articles 5071 - 5100 of 6684
Full-Text Articles in Physical Sciences and Mathematics
Vertebrate Pests Of Beekeeping, John M. O'Brien, Rex E. Marsh
Vertebrate Pests Of Beekeeping, John M. O'Brien, Rex E. Marsh
Proceedings of the Fourteenth Vertebrate Pest Conference 1990
Information concerning vertebrate pests of beekeeping was gathered from state and provincial apiary inspectors through a questionnaire. Forty-eight states and 9 provinces responded. Additional pest information has been assembled from published articles. Bears represent the major vertebrate pest based on severity of damage to colonies. Total estimated losses reported amounted to $623,000 annually. Loss estimates for the various pest species are probably grossly underestimated because many states with problems could not or did not provide loss estimates. Skunks and house mice represent the next most important species from a damage point of view, with annual damage averaging $423,050 and $100,450, …
Red-Winged Blackbird And Starling Feeding Responses On Corn Earworm-Infested Corn, Flavian H. Okurut-Akol, Richard A. Dolbeer, Paul P. Woronecki
Red-Winged Blackbird And Starling Feeding Responses On Corn Earworm-Infested Corn, Flavian H. Okurut-Akol, Richard A. Dolbeer, Paul P. Woronecki
Proceedings of the Fourteenth Vertebrate Pest Conference 1990
We examined the feeding behavior of red-winged blackbirds (Agelaius phoeniceus) and European starlings (Sturnus vulgaris) on ears of corn (Zea mavs) artificially infested with corn earworms (Helicoverpa zea). In 30-minute aviary tests, redwings and starlings directed 39 to 79% more feeding responses to ears of corn with worms than to ears without worms but they damaged the same proportion of ears with and without worms. In 3-hour aviary tests and a field evaluation, birds damaged more ears with worms than without worms. In spite of more feeding responses directed to ears with …
Responses Of Captive Coyotes To Chemical Attractants, Robert L. Phillips, F. Sherman Blom, Richard M. Engeman
Responses Of Captive Coyotes To Chemical Attractants, Robert L. Phillips, F. Sherman Blom, Richard M. Engeman
Proceedings of the Fourteenth Vertebrate Pest Conference 1990
Seasonal responses of captive coyotes (Canis latrans) to 9 chemical attractants (W-U lure, TMAD, SFE, FAS, CFA, artificial smoked fish flavor, artificial beef liver flavor, yeast autolysate and decanoic acid) were evaluated. Twenty-six additional attractants were tested only during the summer. W-U lure and FAS produced the greatest total response times from coyotes during all seasons of the year. FAS and smoked fish flavor evoked the most lick-chew-bite and pulling behaviors during the summer and have potential for improving the performance of M-44 devices in warm weather.
The Status Of Lines In Bird Damage Control–A Review, Patricia A. Pochop, Ron J. Johnson, Danilo A. Aguero, Kent M. Eskridge
The Status Of Lines In Bird Damage Control–A Review, Patricia A. Pochop, Ron J. Johnson, Danilo A. Aguero, Kent M. Eskridge
Proceedings of the Fourteenth Vertebrate Pest Conference 1990
One technique for repelling or excluding birds is to stretch wires, monofilament lines, or nylon strings across sites needing protection. Wires or lines spaced at various intervals and in various configurations have successfully repelled birds such as ring-billed (Larus delawarensis) and/or herring (L. argentatus) gulls, and brant (Branta bernicla bernicla) from reservoirs, sanitary landfills, fish hatcheries, nesting areas, public places, or farm fields. Black thread has been suggested for repelling small birds such as sparrows (unspecified) from garden seedlings and bullfinches (unspecified) from fruit trees. Recent observations in New Mexico indicated that monofilament lines …
Keynote Address--Thoughts On The Future Of Vertebrate Pest Management, Russell F. Reidinger Jr.
Keynote Address--Thoughts On The Future Of Vertebrate Pest Management, Russell F. Reidinger Jr.
Proceedings of the Fourteenth Vertebrate Pest Conference 1990
I greatly appreciated the invitation to attend this Conference, and to share some thoughts on the future of vertebrate pest management in the form of a Keynote Address. In making the presentation, I will dwell mostly on a single document. This document is entitled “Strategic Plan for Animal Damage Control,” and became available in December 1989, from the U.S. Department of Agriculture's Animal and Plant Health Inspection Service (APHIS). The document is one of the products from a strategic planning process that began in APHIS about 2 years ago, and continues today. The process began at the highest level of …
An Evaluation Of Fencing To Exclude Pocket Gophers From Experimental Plots, Terrell P. Salmon, Robert H. Schmidt, Rex E. Marsh
An Evaluation Of Fencing To Exclude Pocket Gophers From Experimental Plots, Terrell P. Salmon, Robert H. Schmidt, Rex E. Marsh
Proceedings of the Fourteenth Vertebrate Pest Conference 1990
We evaluated the ability of underground fencing to exclude pocket gophers (Thomomys bottae) from experimental plots planted with alfalfa. Fencing extending 61 cm below and 91 cm aboveground, with a 15.2-cm lip bent 90 degrees inward at the bottom, did not prevent marked and unmarked gophers from escaping, invading, or moving among six adjacent plots. Complete underground screening, in combination with gopher control, may be the only technique which ensures the complete exclusion of gophers from experimental and ornamental plots.
Rodenticide Ecotoxicology: Systems Analysis And Simulation, R.H. Smith, Paula R. Cox, M. Rampaud
Rodenticide Ecotoxicology: Systems Analysis And Simulation, R.H. Smith, Paula R. Cox, M. Rampaud
Proceedings of the Fourteenth Vertebrate Pest Conference 1990
Exposure, as well as toxicity, determines whether rodenticides present real environmental hazards to nontarget animals. In order to combine exposure and toxicity, a compartment model is proposed which distinguishes transfer processes from accumulation of residues. The published literature relevant to the model is analyzed, and some important gaps in knowledge are highlighted. Simple sub-models of rat feeding behavior and mortality are combined into a simulation model which generates data on both efficacy of control and build-up of residues in live rats and carcasses. The roles of feeding parameters (e.g., palatability, availability of alternative food) as well as toxicity are emphasized …
Animal Welfare And The Control Of Vertebrates, Harry V. Thompson
Animal Welfare And The Control Of Vertebrates, Harry V. Thompson
Proceedings of the Fourteenth Vertebrate Pest Conference 1990
The relationships between man and other animals have attracted increased attention and some controversy in recent years. Their importance in biomedical research, farming, and wildlife control are discussed in the United Kingdom context.
Rodent Damage To Hawaiian Sugarcane, Mark E. Tobin, Robert T. Sugihara, Asher K. Ota
Rodent Damage To Hawaiian Sugarcane, Mark E. Tobin, Robert T. Sugihara, Asher K. Ota
Proceedings of the Fourteenth Vertebrate Pest Conference 1990
Rattus norvegicus, R. exulans, and R. rattus cause extensive damage to Hawaiian sugarcane. This paper gives an overview of the problem and briefly summarizes the history of rodent control on Hawaiian sugarcane plantations. Current baiting practices with zinc phosphide may favor the proliferation of R. norvegicus, and more effective control methods are needed for this species. A cooperative research and development program by the Denver Wildlife Research Center and the nonprofit Hawaiian Sugar Planters' Association is described.
A Comparison Of Several Pocket Gopher Baits In The Field, Paul Vossen, Pierre Gadd
A Comparison Of Several Pocket Gopher Baits In The Field, Paul Vossen, Pierre Gadd
Proceedings of the Fourteenth Vertebrate Pest Conference 1990
Two field trials were conducted to determine the effectiveness of anticoagulant baits in pocket gopher (Thomomys bottae) control. In the first trial, burrow systems were baited once with chlorophacinone 0.005% on rolled oats and embedded in paraffin to form a wax block. The systems were arranged in a one system-wide line bordering a clean vineyard. Infestation of the vineyard was prevented for 2 months; after that, gophers did bypass the barrier of treated systems and entered the vineyard. In the second trial two anticoagulant baits, chlorophacinone 0.005% on rolled oats and embedded in paraffin, and diphacinone 0.0052% on …
Naphthalenes Associated With Treated Wastewater Effluents In An Urban National Wildlife Refuge, John T. Tanacredi Ph.D.
Naphthalenes Associated With Treated Wastewater Effluents In An Urban National Wildlife Refuge, John T. Tanacredi Ph.D.
Faculty Works: CERCOM
Our coastal enviornments have become the invariable recipient of petroleum and petroleum wastes. Demands for petroleum products coupled with a lack of economic incentive to recycle waste oil, will increase the probability of greater concentrations of petroleum derived hyrdrocarbons entering our estuaries (CEQ Report, 1983).
Status Of The Major Oyster Diseases In Virginia 1989 A Summary Of The Annual Monitoring Program, Eugene M. Burreson
Status Of The Major Oyster Diseases In Virginia 1989 A Summary Of The Annual Monitoring Program, Eugene M. Burreson
Reports
No abstract provided.
Impacts Of Land Use Laws And Policies Massachusetts State Superfund Program, Umass Amherst Center Economic Development
Impacts Of Land Use Laws And Policies Massachusetts State Superfund Program, Umass Amherst Center Economic Development
Center for Economic Development Technical Reports
The reason for this report was to examine the Massachusetts state Superfund law, and the statutory remedies that Massachusetts relies on to recover the cost associated with the cleanup of oil and hazardous materials released into the environment.
A Resource Inventory And Impact Analysis Of Great Bog And The Horse Point Delta/Esker System, Problems In Environmental Science Course (Biology 493), Colby College, Biologists Organized For Ecosystem Assessment, Colby College
A Resource Inventory And Impact Analysis Of Great Bog And The Horse Point Delta/Esker System, Problems In Environmental Science Course (Biology 493), Colby College, Biologists Organized For Ecosystem Assessment, Colby College
Colby College Watershed Study: Other Area Studies
In May of 1990, Tilcon-Maine, Inc. submitted an application to mine gravel on the east side of Horse Point Road on Horse Point in the Town of Belgrade. The project site covers 46 acres and the proposed excavation covers 16 acres. An estimated 740,000 cubic yards of material will be removed over a period of six or seven years (Pfister, pers. comm.). According to Tilcon (Timson et al., 1990) the maximum depth of the pit will be 78 feet and the bottom of the pit will be a minimum of 6 feet above the water table. At the present time …
The 1987 Chesapeake Bay Agreement: A Model Of Intergovernmental And Multi-State Cooperation In Estuary/Coastal Resource Management, John F. Faltus
The 1987 Chesapeake Bay Agreement: A Model Of Intergovernmental And Multi-State Cooperation In Estuary/Coastal Resource Management, John F. Faltus
Theses and Major Papers
The 1980s witnessed an increased awareness of the problems of estuary and coastal water pollution. The medical waste problems of 1988 heightened public awareness of this problem and showed that coastal pollution is not just isolated but rather is a regional problem which requires regional solutions. During the 1980x the Environmental Protection Agency (EPA), and the States of Maryland, Virginia, Pennsylvania, and the District of Columbia worked together to forge two agreements, one in 1983, and more significantly a broader agreement in 1987, in which they agreed to work together to develop specific goals and objectives to address and solve …
Ocean Thermal Energy Conversion: (Otec) Outlook For The Future, John M. Kroft
Ocean Thermal Energy Conversion: (Otec) Outlook For The Future, John M. Kroft
Theses and Major Papers
The temperature differential between the tropical ocean surface and deep waters represents tremendous energy potential. Ocean thermal energy conversion (OTEC) systems represent an environmentally sound method to extract that energy resource. Included in this paper is a review of the history of OTEC, basic thermodynamic principles involved and major components of the system. The three basic types of OTEC systems are discussed, citing the various advantages and disadvantages of each. The resource extent and possible environmental impacts are examined from the U. S. perspective. After reviewing the conflicting ocean use interest involved, comparative cost calculations of energy types, and the …
Hawaii's Rainforest Crunch: Land, People, And Geothermal Development, Paul Faulstich
Hawaii's Rainforest Crunch: Land, People, And Geothermal Development, Paul Faulstich
Pitzer Faculty Publications and Research
One hundred and forty-one people, led by Native Hawaiians, were arrested on 25 March 1990 as part of the largest demonstration yet against geothermal development in Hawaii. The gathering was intended to focus attention on Native Hawaiian rights and the ecological consequences of drilling geothermal wells in the near-pristine Wao Kele O Puna rain forest. The energy project, undertaken by True Geothermal Company and endorsed by Hawaii's governor and other imposing figures, has already invaded the largest intact tropical lowland rain forest in the United States.
The New Materialism: Managing Minnesota's Materials As If Matter Mattered, David Morris
The New Materialism: Managing Minnesota's Materials As If Matter Mattered, David Morris
Journal of the Minnesota Academy of Science
No abstract provided.
La Conservation Des Forêts Au Népal: Encourager La Participation Des Femmes, Augusta Molnar
La Conservation Des Forêts Au Népal: Encourager La Participation Des Femmes, Augusta Molnar
Poverty, Gender, and Youth
Ce numéro de SEEDS porte sur les moyens mis en oeuvre pour faire participer les femmes à un programme gouvernemental visant à preserver et à restituer la forêt au Népal. Comme il arrive fréquemment lors de la mise en place de projets aussi vastes ayant une portée generale, les femmes n'étaient pas un centre d'intérêt spécifique au moment de la conception du projet. Cependant, lorsque les activités ont demarré, les responsables népalais du projet et leurs collègues de l'étranger se sont tres vite rendus compte que le succès du programme dépendait de la participation directe des femmes aux activités du …
To The U.S. Department Of Transportation: Comments Of The Environmental Defense Fund On The Secretary Of Transportation’S National Transportation Policy, Robert E. Yuhnke
To The U.S. Department Of Transportation: Comments Of The Environmental Defense Fund On The Secretary Of Transportation’S National Transportation Policy, Robert E. Yuhnke
Air Quality Protection in the West (November 27-28)
20 pages.
Health Effects Of Air Pollutants (Sulfur Dioxide, Ozone, And Carbon Monoxide), Robert A. Bethel
Health Effects Of Air Pollutants (Sulfur Dioxide, Ozone, And Carbon Monoxide), Robert A. Bethel
Air Quality Protection in the West (November 27-28)
19 pages (includes illustrations).
Contains references.
Urban Ambient Air Quality Trends, N. O. Gerald
Urban Ambient Air Quality Trends, N. O. Gerald
Air Quality Protection in the West (November 27-28)
24 pages (includes illustrations and maps).
Urban Air Quality Litigation Under The Clean Air Act: Past, Present And Future, David S. Baron
Urban Air Quality Litigation Under The Clean Air Act: Past, Present And Future, David S. Baron
Air Quality Protection in the West (November 27-28)
20 pages.
Contains footnotes.
Motor Vehicle Air Pollution Control: The Remaining Issues, Michael P. Walsh
Motor Vehicle Air Pollution Control: The Remaining Issues, Michael P. Walsh
Air Quality Protection in the West (November 27-28)
26 pages (includes illustrations).
Contains references.
Agenda: Air Quality Protection In The West, University Of Colorado Boulder. Natural Resources Law Center
Agenda: Air Quality Protection In The West, University Of Colorado Boulder. Natural Resources Law Center
Air Quality Protection in the West (November 27-28)
Conference organizers, session moderators and/or speakers included University of Colorado School of Law professor Mark S. Squillace.
Visibility, acid rain, air toxics, and urban air pollution are the topics of an upcoming Center conference on air quality in the West. The conference will be held at the School of Law in Boulder on November 27-28, 1989. Presentations will describe the nature and scope of the issues, the existing legal framework and experience with its implementation, and proposed changes in the law. Emphasis will be placed on air quality issues in the West and efforts underway to address these problems. Special …
Diminishing Views: Air Quality In Western National Parks, Christine L. Shaver
Diminishing Views: Air Quality In Western National Parks, Christine L. Shaver
Air Quality Protection in the West (November 27-28)
17 pages.
Contains references.
Strategies To Overcome Agency Recalcitrance Under The Federal Clean Air Act: The Acid Rain Litigation Experience, David R. Wooley
Strategies To Overcome Agency Recalcitrance Under The Federal Clean Air Act: The Acid Rain Litigation Experience, David R. Wooley
Air Quality Protection in the West (November 27-28)
12 pages.
Regional Air Quality Concerns In The West: Acid Deposition And Ozone, Kathy A. Tonnessen
Regional Air Quality Concerns In The West: Acid Deposition And Ozone, Kathy A. Tonnessen
Air Quality Protection in the West (November 27-28)
22 pages.
Contains 3 pages of references.
Toxic Air Pollution: New Solutions To Old Problems, Devra Lee Davis, Curtis Moore
Toxic Air Pollution: New Solutions To Old Problems, Devra Lee Davis, Curtis Moore
Air Quality Protection in the West (November 27-28)
12 pages.
Transboundary Air Pollution: The Legal Framework, Mark S. Squillace
Transboundary Air Pollution: The Legal Framework, Mark S. Squillace
Air Quality Protection in the West (November 27-28)
12 pages (includes illustrations).
Contains footnotes.