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Decoying Coyotes With Dogs, Gary J. Rowley, Delyle Rowley Apr 1987

Decoying Coyotes With Dogs, Gary J. Rowley, Delyle Rowley

Great Plains Wildlife Damage Control Workshop Proceedings

Decoy dogs, used in conjunction with a predator call or coyote howl, are an effective technique to reduce coyote depredation on domestic sheep ranges during the spring and summer when coyotes are highly territorial and aggressively protect their young and den area. Trained decoy dogs, when chased by coyotes, return to their owner bringing the coyotes into shooting range. The type of dogs used successfully for this work is discussed.


Fencing Methods To Control Big Game Damage To Stored Crops In Wyoming, John F. Schneidmiller Apr 1987

Fencing Methods To Control Big Game Damage To Stored Crops In Wyoming, John F. Schneidmiller

Great Plains Wildlife Damage Control Workshop Proceedings

Fighting damage to stored crops by big game animals is both costly and time consuming. Fencing methods are the most suitable means to prevent big game damage to stored crops. Experimentation in fencing methods is ongoing to find the best and most cost effective solution to this problem.


Politics, Prairie Dogs, And The Sportsman, John Sharps Apr 1987

Politics, Prairie Dogs, And The Sportsman, John Sharps

Great Plains Wildlife Damage Control Workshop Proceedings

I would like to speak to you today about potential economic and biological values of prairie dogs. When I refer to prairie dogs throughout my talk, I'm referring only to the prairie dogs on the National Grasslands Systems in western South Dakota. Prairie dogs have great economic potential to sportsmen and the general public and also act as ecosystem regulators to grassland plant and animal communities, and as such, could enhance both potentials if managed differently.


Policy And Goals Of The State Of South Dakota, Gay Simpson Apr 1987

Policy And Goals Of The State Of South Dakota, Gay Simpson

Great Plains Wildlife Damage Control Workshop Proceedings

I am to address the policy of the Department of Game, Fish and Parks toward predator control and management in relation to waterfowl. Waterfowl has always had a high priority with the state of South Dakota. As a state agency, we could have said "let the Feds do it," but we did not take that approach (1) because South Dakota is a production state, lying where it does on the northern end of the Central Flyway, and (2) because we have a healthy population of waterfowl hunters. We sell about 40,000 duck stamps annually. The Department has recognized the importance …


Eighth Great Plains Wildlife Damage Control Workshop Apr 1987

Eighth Great Plains Wildlife Damage Control Workshop

Great Plains Wildlife Damage Control Workshop Proceedings

Workshop Committee,
Session Chairpersons,
Poster Session,
Exibitors,
Rocky Mountain Forest and Range Experiment Station


Predator Management To Increase Duck Nest Success, Harold A. Doty, Anthony J. Rondeau Mar 1987

Predator Management To Increase Duck Nest Success, Harold A. Doty, Anthony J. Rondeau

Great Plains Wildlife Damage Control Workshop Proceedings

Operational programs of seasonal predator management to increase duck production may be economically feasible. Mammalian predators of nesting ducks and their eggs were reduced in numbers on selected areas of west central Minnesota during the nesting seasons 1982-86. Where predators were removed, nest success averaged 30% while nest success on nearby untreated habitat was 10%.


Plagues Of The House Mouse In South Eastern Australia, Glen Saunders Mar 1987

Plagues Of The House Mouse In South Eastern Australia, Glen Saunders

Vertebrate Pest Conference Proceedings: 12th (1986)

Plagues of the house mouse (Mus musculus) occur at irregular intervals throughout the agricultural regions of south-eastern Australia. This paper discusses these phenomena in terms of their impact on agricultural production, previous attempts to reduce damage and levels of infestation, and associated environmental implications. Consideration is also given to the accurate prediction of mouse plagues and the control strategies which need to be in place if effective management is to become a reality.


Why Do Possums Survive Aerial Poisoning Operations?, D. R. Morgan, C. L. Batcheler, J. A. Peters Mar 1987

Why Do Possums Survive Aerial Poisoning Operations?, D. R. Morgan, C. L. Batcheler, J. A. Peters

Vertebrate Pest Conference Proceedings: 12th (1986)

Major causes of failure of aerial poisoning operations against possums identified were: sublethal toxic loading, undersize sublethal baits, nonlearned behavioral aversion to 1080, and failure to encounter bait. Dislike of bait was not a major cause of failure.

Progress has been made towards solving these problems, but failure to encounter bait remains a likely major reason for possums surviving aerial poisoning. Improvements in the aerial sowing of bait are essential if the full benefit of this progress is to be realized.


Polinices Predation Patterns And Mercenaria Morphology Models, John A. Commito Mar 1987

Polinices Predation Patterns And Mercenaria Morphology Models, John A. Commito

Environmental Studies Faculty Publications

DeAngelis et al. (1985) have described a model of the evolutionary response of bivalve prey to size-selective naticid snail predation. The model analyzed "the allocation of bivalve energy among reproduction, overall growth in size, and supplementary growth in shell thickness" (p. 818). Using parameter values for Polinices duplicatus as the predator and Mercenaria mercenaria as the prey, the model predicted three optimal strategies for bivalves faced with naticid predation: (1) delayed reproduction with energy diverted into rapid growth in order to reach a size refuge; (2) early reproduction, possibly with some extra shell thickness; and (3) greatly increased shell thickness …


The Prairie Naturalist Volume 19, No. 1 March 1987 Mar 1987

The Prairie Naturalist Volume 19, No. 1 March 1987

The Prairie Naturalist

Paul B. Kannowski, Editor

Nikki R. Seabloom, Assistant Editor

Douglas H. Johnson, Book Review Editor

TABLE OF CONTENTS

ECOLOGY OF WHITE-TAILED DEER IN UPLAND PONDEROSA PINE HABITAT IN SOUTHEASTERN MONTANA ▪ G. L. Dusek

PRECISION AND BIAS OF A SUMMER AERIAL TRANSECT CENSUS OF PRONGHORN ANTELOPE ▪ S. H. Allen and J. M. Samuelson

ACTIVITY PATTERNS, MOVEMENTS, AND HOME RANGES OF PRAIRIE MINK ▪ T. W. Arnold and E. K. Fritzell

BRYOPHYTES OF THE SOUTH UNIT OF THEODORE ROOSEVELT NATIONAL PARK, NORTH DAKOTA ▪ C. L. Blaney and D. H. Norris

FALL FOOD HABITS OF WILD TURKEYS IN SOUTH CENTRAL …


The Probe, Issue 71 - March/April 1987 Mar 1987

The Probe, Issue 71 - March/April 1987

The Probe: Newsletter of the National Animal Damage Control Association

Contents:
EPA audit of the Denver Wildlife Research Center
APHIS Activity Report
Golf Handicaps
APHIS Wins Award
Great Plains Workshop
Letters to the Editor
"Home Free," ultrasonic pest control devices
Trapping in Wilderness Areas
Fur and Beauty Pageants


The Probe, Issue 70 - February 1987 Feb 1987

The Probe, Issue 70 - February 1987

The Probe: Newsletter of the National Animal Damage Control Association

THE PROBE
National Animal Damage Control Association
FEBRUARY 1987 NUMBER 70
Animal Damage Control
APHIS Report
New Mexico Problems
City Critters
Strychnine
1080 Protective Collar
M-44
Ultrasonics
Mouse Attacks Driver
Letters to Ye Ed
NADCA


Simulation Modeling On The Macintosh Using Stella, Robert Costanza Feb 1987

Simulation Modeling On The Macintosh Using Stella, Robert Costanza

Institute for Sustainable Solutions Publications and Presentations

STELLA (Structured Thinking Experimental Learning Laboratory with Animation) is a computer application for Macintosh that allows model building for the biologist.


Competition For Food And Space In A Heteromyid Community In The Great Basin Desert, Cliff A. Lemen, Patricia W. Freeman Jan 1987

Competition For Food And Space In A Heteromyid Community In The Great Basin Desert, Cliff A. Lemen, Patricia W. Freeman

School of Natural Resources: Faculty Publications

ABSTRACT.—A series of removal experiments were performed on Dipodomys merriami, D. microps, and Perognathus longimembris to test for the importance of competition for food and microhabitats in a heteromyid community in the Great Basin Desert. Each of these species was removed singly to determine the short-term effects on the microhabitat preferences of the remaining species. We correctly predicted, based on differences in diet, that the removal of D. microps (a foliovore) would have no effect on D. merriami or P. longimembris (granivores). Using the dominance hierarchy theory, we correctly predicted that removal of a larger heteromyid, D. merriami …


Study Of The Ocean Transportation Of Chemicals, Joseph A. Meyertholen Jan 1987

Study Of The Ocean Transportation Of Chemicals, Joseph A. Meyertholen

Marine Affairs Theses and Major Papers

The growth of the chemical industry over the past 30 years has contributed significantly to the increased volume of hazardous cargo transported by ocean vessel. The properties of some chemicals in commerce, particularly intermediate products, are such that their movement represents a risk to society in terms of environmental damage, bodily injury, and carcinogenic effects that may not surface for years. This study traces the development of the ocean chemical transportation system with emphasis on the technology, management and regulatory regime that has evolved to control these risks. Selected incidents involving hazardous chemical cargoes are reviewed, highlighting the industry and …


The Land Resources And Carrying Capacity Of Gascoyne Locations 228 And 229, North Of Carnarvon, Western Australia, M R. Wells, Veronica P M Oma, Alexander Mcrae Holm Jan 1987

The Land Resources And Carrying Capacity Of Gascoyne Locations 228 And 229, North Of Carnarvon, Western Australia, M R. Wells, Veronica P M Oma, Alexander Mcrae Holm

Resource management technical reports

No abstract provided.


An Economic Evaluation Of The Oak Creek Range Management Area, Utah, U.S. Forest Service Jan 1987

An Economic Evaluation Of The Oak Creek Range Management Area, Utah, U.S. Forest Service

All U.S. Government Documents (Utah Regional Depository)

The Oak Creek Range Management Area was established in 1978 under the Intermountain Region's Range Validation program to provide information about the overall cost effectiveness of range improvement practices within Pinyon-Juniper ecosystems.


Pesticide Use And Toxicology In Relation To Wildlife: Organophosphorus And Carbamate , Compounds, Gregory J. Smith, U.S. Department Of The Interior, Fish And Wildlife Service Jan 1987

Pesticide Use And Toxicology In Relation To Wildlife: Organophosphorus And Carbamate , Compounds, Gregory J. Smith, U.S. Department Of The Interior, Fish And Wildlife Service

All U.S. Government Documents (Utah Regional Depository)

The use of organophosphorus and carbamate pesticides has increased markedly during the past two decades. Currently, more than 100 different organophosphorus and carbamate chemicals are registered as the active ingredients in thousands of different pesticide products in the United States. More than 160 million acre-treatments of these pesticides are estimated to be applied to agricultural crops and forests each year. Clearly, these two groups of chemicals constitute a major portion of all pesticides used today. Organophosphorus and carbamate compounds have histories dating back long before their use as pesticides. Carbamates were developed during investigation of "ordeal" poisons used in Africa …


Integrated Pest Management On Rangeland: State Of The Art In The Sagebrush Ecosystem, Jerome A. Onsager, Usda, Agricultural Research Service Jan 1987

Integrated Pest Management On Rangeland: State Of The Art In The Sagebrush Ecosystem, Jerome A. Onsager, Usda, Agricultural Research Service

All U.S. Government Documents (Utah Regional Depository)

Several sagebrush communities represent optimum levels of negative development plant productivity for certain peculiar sites, and therefore should be managed for their preservation. Other sagebrush communities may be profitably modified to favor forage species that are more palatable to domestic livestock. Modification techniques can range from subtle (i.e., grazing strategies) to tracematic (i.e., brush removal and revegetation), and an associated spectrum of management tactics are described. Interrelationships between and problems associated with management of forage resources, management of weeds, and management of insects (including grasshoppers, black grass bugs, and beneficial insects) are discussed. Economical analyses, the role of modeling as …


A Prototype For Quality: Bryce Canyon National Park Interpretive Prospectus, 1987, United States Department Of The Interior, National Park Service Jan 1987

A Prototype For Quality: Bryce Canyon National Park Interpretive Prospectus, 1987, United States Department Of The Interior, National Park Service

Parks and Reserves

To ensure maximum coordination of message delivery, personal service efforts should be orchestrated as a result of annual (winter season) planning sessions involving TW Services, Bryce/Zion Trail Rides, and park personnel. Such planning should coordinate general summer season schedules, brainstorm new program ideas and service proposals, and establish procedures for monitoring and evaluation. This is also an opportunity to identify high priority messages regarding resources, events, new services, and park management pertinent in the coming season; in this manner, emphases for seasonal training are established.


Fisheries Report No 76 - The Australian Herring Fishery In Western Australia, 1973 - 1985, Michael H. Walker, Diane P. Clarke Jan 1987

Fisheries Report No 76 - The Australian Herring Fishery In Western Australia, 1973 - 1985, Michael H. Walker, Diane P. Clarke

Fisheries Research Reports

The Australian herring (Arripis georgianus) ts a pelagic, largely marine, species which is relatively abundant in the south western waters of Western Australia. It is a close relative of the Australian salmon with a similar life history and habits which includes migrating for the purpose of spawning. The Australian herring is keenly sought both as a food fish and for bait. This report documents the fishery for this species as it has developed during the period 1973 to 1985.


Fisheries Report No 75 - The Commercial Shark Fishery In Temperate Waters Of Western Australia, D. I. Heald Jan 1987

Fisheries Report No 75 - The Commercial Shark Fishery In Temperate Waters Of Western Australia, D. I. Heald

Fisheries Research Reports

The Western Australian-based mixed gear fishery for edible shark generally operates from Geraldton to Esperance in waters shallower than 10 fm to a maximum depth of 100 fm. In 1983/84, the total catch was 1262 tonnes live weight. The total shark catch was taken by 158 gillnet boats, 45 longline boats and 152 handline boats. However, nearly two thirds (62%) of these boats caught 1 tonne or less in 1983/84 and were assumed to rely more heavily on other target fisheries than shark.

Of the 20 or so species of shark caught in W.A., 3 species together comprise two thirds …


Consumption Of Water By Livestock, G J. Luke Jan 1987

Consumption Of Water By Livestock, G J. Luke

Resource management technical reports

No abstract provided.


Fisheries Report No 77 - The Western Rock Lobster Fishery 1983 - 1984, R. S. Brown, E. H. Barker Jan 1987

Fisheries Report No 77 - The Western Rock Lobster Fishery 1983 - 1984, R. S. Brown, E. H. Barker

Fisheries Research Reports

The fishery for the western rock lobster Panulirus cygnus is one of the most important single fisheries in Australia and an important export earner for the State. Western Australia produced 10,576 tonnes in 1983/84, out of a total Australian rock lobster catch, with the exception of Queensland, of 15,777 tonnes. The fishery is governed by a complex set of regulations which are designed to limit the total fishing effort to acceptable levels and to enforce a legal minimum size (Bowen 1971, Hancock 1981). Thus, it is important to monitor the state of the fishery constantly both to ensure that the …


Fisheries Report No 79 - The Western Rock Lobster Fishery 1984 - 1985, R. S. Brown, E. H. Barker Jan 1987

Fisheries Report No 79 - The Western Rock Lobster Fishery 1984 - 1985, R. S. Brown, E. H. Barker

Fisheries Research Reports

The fishery for the western rock lobster Panulirus cygnus is one of the most important single fisheries in Australia and an important export earner for the State. Western Australia produced 8,966 tonnes in 1984/85, out of a total Australian rock lobster catch (excluding New South Wales and Queensland) of 13,651 tonnes. The fishery is governed by a complex set of regulations which are designed to limit the total fishing effort to exceptable levels and to enforce a legal minimum size (Bowen 1971, Hancock 1981). Thus, it is important to monitor the state of the fishery constantly both to ensure that …


Fisheries Report No 78 - A Re-Examination Of The Methods Used For Handling Undersize Western Rock Lobsters, R. S. Brown, C J. Dibden Jan 1987

Fisheries Report No 78 - A Re-Examination Of The Methods Used For Handling Undersize Western Rock Lobsters, R. S. Brown, C J. Dibden

Fisheries Research Reports

The fishery for the western rock lobster, Panulirus cygnus (George) is the most important single species fishery in Australia, and one of the major rock lobster fisheries of the world, with catches over the last ten years (1973 to 1983) averaging approximately 9.8 million kg annually.

The continuing success of the fishery can be attributed mainly to effective management, which involves a complex system of regulations, the majority of which were introduced in 1963 and which are constantly being revised to accommodate changes in the fishery. One important piece of legislation, effective from 17 December 1965, was the introduction of …


Final Environmental Impact Statement: Proposed Resource Management Plan For The Washakie Resource Area, Wyoming, U.S. Bureau Of Land Management Jan 1987

Final Environmental Impact Statement: Proposed Resource Management Plan For The Washakie Resource Area, Wyoming, U.S. Bureau Of Land Management

Final Environmental Impact Statements (WY)

The focus of this Final EIS is on the Proposed Plan. This document presents a complet comprehensive Proposed Plan for the Washakie Resource Area in Chapter 2. Because portions of the Draft RMPEIS have not bee reprinted, this document should be used together with the Draft RMP/EIS for a full description of all alternatives considered and their potential environmental impacts.


Water Use By Some Crops And Pastures In The Southern Agricultural Areas Of Western Australia, R A. Nulsen, I N. Baxter Jan 1987

Water Use By Some Crops And Pastures In The Southern Agricultural Areas Of Western Australia, R A. Nulsen, I N. Baxter

Resource management technical reports

No abstract provided.


Nitrogen Mineralization And Denitrification In Lake Michigan Sediment, Wayne S. Garder, Thomas F. Nalepa, John M. Malczyk Jan 1987

Nitrogen Mineralization And Denitrification In Lake Michigan Sediment, Wayne S. Garder, Thomas F. Nalepa, John M. Malczyk

United States Department of Commerce: Staff Publications

Organic nitrogen mineralization mechanisms, fluxes, and fates in Lake Michigan sediments were examined by measuring accumulation rates of inorganic nitrogen in laboratory microcosms. Neither ammonium nor nitrate increased substantially in flow-cell or slurry microcosms of offshore, silty sediments. In experiments with gastight chambers containing "intact" offshore, silty sediment cores (sampled at 45- and 100-m water depths), the total fluxes of nitrogen (NH4+, N03-, and N2) across the sediment-water interface ranged from 14 to 51 µg-atoms N m-2 h-1. Nitrogen gas accounted for 93-98% of the total inorganic nitrogen flux from the …


Broadacre Pest Control After Ddt, P J. Michael Jan 1987

Broadacre Pest Control After Ddt, P J. Michael

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

DDT may no longer be applied to broadacre crops grown in Western Australia. It is being replaced by other more effective chemicals and with new methods of pest control. DDT was the most effective chemical for the control of several major broadacre pests in this State and farmers may well wonder why this change was necessary and how they will manage without DDT.