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Laboratory Trial Of Chlorophacinone As A Prairie Dog Toxicant, Daryl D. Fisher, Robert M. Timm Apr 1987

Laboratory Trial Of Chlorophacinone As A Prairie Dog Toxicant, Daryl D. Fisher, Robert M. Timm

Great Plains Wildlife Damage Control Workshop Proceedings

A laboratory trial was conducted to investigate the efficacy and secondary toxicity of chlorophaoinone oats as a prairie dog toxicant. Bait containing 0.0025% chlorophacinone killed 29 of 31 prairie dogs when offered in 25 gram amounts daily for 6 days. Five of 6 domestic ferrets died of anticoagulant poisoning when fed H of these toxicant-kil led prairie dogs over 8 days. Chlorophacinone may not be an acceptable prairie dog toxicant due to this potential secondary hazard.


An Evaluation Of Shooting And Habitat Alteration For Control Of Black-Tailed Prairie Dogs, Craig J. Knowles Apr 1987

An Evaluation Of Shooting And Habitat Alteration For Control Of Black-Tailed Prairie Dogs, Craig J. Knowles

Great Plains Wildlife Damage Control Workshop Proceedings

Shooting at two incipient black-tailed prairie dog (Cynomys ludovicianus) colonies remover from 12.8 to 17.3 prairie dogs/ha vith reduction of adults averaging 69%. Habitat was physically altered in a portion of one prairie dog colony and activity levels between treated and non-treated areas dia not show any consistent differences.


Bullsnake Predation On Waterfowl Nests On Valentine National Wildlife Refuge, Nebraska, Scott S. Glup, Leonard L. Mcdaniel Apr 1987

Bullsnake Predation On Waterfowl Nests On Valentine National Wildlife Refuge, Nebraska, Scott S. Glup, Leonard L. Mcdaniel

Great Plains Wildlife Damage Control Workshop Proceedings

Bullsnake (Pituophis melanoleucus) predation on upland nesting ducks was monitored on Valentine National Wildlife Refuge (NWR) from 1982-86. The fate of 1,999 duck nests of 9 species was observed under different treatments of land use and control of potential nest predators. Maximum potential levels of bullsnake depredation are masked by nest destruction by mammalian species; bullsnake nest depredation rates were >65% where mammalian predators were controlled, >40% without predator control and <4.0% where both mammalian and reptilian predators were controlled and/or excluded. Duck nest densities were dramatically increased where predator control was accomplished in undisturbed nesting cover.


Policy And Goals On National Wildlife Refuges, Len Mcdaniels Apr 1987

Policy And Goals On National Wildlife Refuges, Len Mcdaniels

Great Plains Wildlife Damage Control Workshop Proceedings

The information that I am to present is the National Wildlife Refuge policy in regard to predator control. One of the goals of the National Wildlife Refuge System is to perpetuate the migratory bird resource. Since 1983 the policy of animal control on National Wildlife Refuges is to assess the effects of predation on breeding ducks; and, if predators are compromising waterfowl production, controls may be implemented. However, in reading the manual for policy on predator control, I found there are a lot of "hoops" to jump through before starting a predator control program.


Snaring As A Beaver Control Technique In South Dakota, Jerry Riedel Apr 1987

Snaring As A Beaver Control Technique In South Dakota, Jerry Riedel

Great Plains Wildlife Damage Control Workshop Proceedings

Methods used for alleviating beaver damage include suggestions on farm management, extension trapping, and direct control. Direct control is utilized in the majority of the complaints with snaring constituting the most often used control technique.


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


Marketing Quality Alfalfa Hay, Garry D. Lacefield Feb 1987

Marketing Quality Alfalfa Hay, Garry D. Lacefield

Kentucky Alfalfa and Stored Forage Conference

Alfalfa hay is a potentially marketable-profitable product if--if quality is satisfactory to meet buyer's needs, if it is packaged such that it meets buyer's feeding program and can be transported efficiently, if in sufficient quantity, if storage site is accessible by truck or trailer, and if it is competitively priced. Meeting these minimum criteria only means the hay is potentially marketable; only after it has been sold does it become potentially profitable.


Evaluating Alfalfa Grazing — Dollars And Cents, Robert N. Barnes Feb 1987

Evaluating Alfalfa Grazing — Dollars And Cents, Robert N. Barnes

Kentucky Alfalfa and Stored Forage Conference

Returns on many Kentucky farms are declining due to reduced tobacco and feedgrain income. This fact, coupled with traditionally low (or negative) returns from typical cow/calf beef enterprises, has been associated with interest in alternative crop and livestock production systems. Alfalfa produced as a cash crop is increasing and many farmers are realizing substantial returns. In the Central Kentucky Area, many farmers have been stimulated to produce alfalfa since demand for high quality hay by horse farms has been strong. As interest in alfalfa is renewed, other farms have begun to introduce intensive or controlled grazing techniques in order to …


Grazing Options In Alfalfa Utilization, Paul D. Deaton Feb 1987

Grazing Options In Alfalfa Utilization, Paul D. Deaton

Kentucky Alfalfa and Stored Forage Conference

Objective

  1. The pure alfalfa stand would not be damaged during the grazing period.
  2. For steers - animal performance while on the alfalfa was more important than pounds of beef produced per acre.
  3. For cow/calf - animal density high enough to remove green leaf area in maximum of 5 days.
  4. Initiate the demonstration with a minimal out-of-pocket cost for fence, water system, etc.
  5. Minimize the occurrence of bloat where possible.


Advances In Alfalfa Weed Control, James R. Martin Feb 1987

Advances In Alfalfa Weed Control, James R. Martin

Kentucky Alfalfa and Stored Forage Conference

The most significant advances in weed control in alfalfa have originated from developments in herbicide technology, This method of weed control began over 20 years ago when such herbicides as EPTC and 2,4-DB were being used by alfalfa farmers. Since then, more than twelve herbicides have been added to the list of products recommended for weed control in alfalfa. (For specific recommendations, see Extension publication "Chemical Control of Weeds in Kentucky Farm Crops", AGR-6).


Effects Of Soils And Fertility On Alfalfa Production, Monroe Rasnake Feb 1987

Effects Of Soils And Fertility On Alfalfa Production, Monroe Rasnake

Kentucky Alfalfa and Stored Forage Conference

Alfalfa can be grown anywhere in Kentucky and on a wide range of soil types. This statement seems to contrast with what we are accustomed to hearing in regard to alfalfa. The usual statement is: "Alfalfa requires a deep, well drained and highly fertile soil . . .". Actually, the two statements are not conflicting. They just represent the plant-soil interactions. The first looks at what is possible while the other is concerned with the ideal situation. In order to understand these different perspectives, we need to consider how soil characteristics affect the alfalfa plant.


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 …


Finding The Appropriate Forage Value For Analyzing The Feasibility Of Public Range Improvements, United States Department Of Agriculture, Forest Service Jan 1987

Finding The Appropriate Forage Value For Analyzing The Feasibility Of Public Range Improvements, United States Department Of Agriculture, Forest Service

Forestry

To complete economic analysis of range improvements completed on the Oak Creek Management area of central Utah, we needed an estimate of the value of forage. A review of the literature revealed several methods of estimating forage values. These methods yielded eight estimates of public rangeland forage ranging from $1.23 to $30 per animal unit month (AUM). Six of the estimates were based on actual market transactions or current administered prices and were the most reflective of actual economic processes. The best estimates of value were those for leasing similar rangeland in the immediate area.


Tuna Fishery In The East Central Atlantic Region: The Feasibility Of Nigeria's Participation, Aderemi Olasupo Abioye Jan 1987

Tuna Fishery In The East Central Atlantic Region: The Feasibility Of Nigeria's Participation, Aderemi Olasupo Abioye

Marine Affairs Theses and Major Papers

Tuna fishery is widely practiced in the east central Atlantic region by many fleets of different nationality. Most of the catch is taken by distant-water fleets. The new Law of the Sea convention, which gives coastal states an exclusive economic zone with outer limit of 200 miles, now allows the coastal states to make the most use of the living resources in their waters. The surplus shall be allocated to other states in the region and those traditionally fishing in the area before. Nigeria with a population of about 100 million people spends substantial foreign exchange annually on the importation …


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 …


An Analysis Of The Massachusetts Inshore Lobster Fishery, Peter Robertson Hoar Jan 1987

An Analysis Of The Massachusetts Inshore Lobster Fishery, Peter Robertson Hoar

Marine Affairs Theses and Major Papers

The purpose of this thesis was to explore the limited entry alternative of fishery management by examining the history of a particular limited entry scheme: the Massachusetts inshore commercial lobster fishery license limitation law. A review was made of existing limited entry theory, followed by a description of limited entry programs extant in U.S. fisheries. The legislative and political histories of the Massachusetts lobster fishery limited entry program was then examined. The limited entry law was then analyzed by comparing what actually occurred with what is supposed to occur according to limited entry theory. A quantitative analysis of changes in …


Evaluation Of Risk Factors Leading To Soil Destabilisation On The South Coastal Sandplain Of Western Australia, R V R Gwynn, P A. Findlater, J R. Edwards Jan 1987

Evaluation Of Risk Factors Leading To Soil Destabilisation On The South Coastal Sandplain Of Western Australia, R V R Gwynn, P A. Findlater, J R. Edwards

Resource management technical reports

The problems of wind erosion in part of the south coast of Western Australian sandplain area were described previously (Gorddard et al, 1981) with 7.3 per cent of cleared and 18.3 per cent of the cropped area showing evidence of sand blasting. Department of Agriculture trials have shown that the loss of the top four millimetres of top soil from pastured paddocks can reduce following crop yields by up to 20 per cent (Marsh and Carter, 1983). Animal production problems associated with wind erosion of soils have not been quantified, but a number of problems such as reduced carrying capacity …


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.