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A New Series Of Selective Rodenticides, David L. Peardon

Vertebrate Pest Conference Proceedings: 6th (1974)

A new series of target-specific, single-dose rodenticides has been discovered by Rohm and Haas Company (Peardon, 1972; Peardon et al., 1972). One compound, RH-787, best exemplifies the balance of desirable qualities of a good rodenticide. It is effective against a broad spectrum of pest rodents, has a desirable margin of safety in non-target animals, is well accepted in baits, causes no secondary hazard problems and is effective against "Warfarin-resistant" (anticoagulant-resistant) rats. This material will become commercially available upon receipt of registration from the EPA.

Emergency Rabid Skunk Control In Montana, Kenneth Seyler, Carter Niemeyer

Vertebrate Pest Conference Proceedings: 6th (1974)

A maximum of 500 strychnine eggs were placed in designated skunk habitat within a three mile radius where rabid skunks were diagnosed as an emergency control method to reduce or prevent the spread of rabies in striped skunk (Mephitis mephitis) populations in Northeastern Montana. The effects of strychnine on skunk and other non-target species populations were evaluated. When placed in primary skunk habitat, the toxicant eggs were selective in removing striped skunks. Scent post surveys indicated that skunk populations were reduced, while non-target species populations remained stable or increased in control areas. The effects of the toxicant egg …

Trapping: A Continuous Integral Part Of A Rodent Control Programme, H.R. Shuyler, R.F. Sun Jr.

Vertebrate Pest Conference Proceedings: 6th (1974)

Trapping is usually considered a rodent control technique of minor importance. Due to the economic situation in the Dumaguete, Philippines program from which this report is drawn, regular trapping was a biological necessity. Four species of rodents and a shrew were of concern. A continuing daily trapping program was developed from a field study of trap bait acceptability. Trap baits were reused every 23 days. Alternate baits were selected. Trap usage techniques were designed to optimize the results. Trap-bait shyness and trap shyness effects were observed but were not a major problem.

Animal Damage Control Research–"Are Present Priorities Based On Actual Need?", Richard N. Smith

Vertebrate Pest Conference Proceedings: 6th (1974)

Priorities regarding Bureau of Sport Fisheries and Wildlife vertebrate damage control research are in most cases based on actual need. Need is influenced by economic, political, legislative, and biological incentives. These incentives affect private industry, state and local governments, academia, and the federal government but in different ways. The Bureau of Sport Fisheries and Wildlife has 24 percent of its wildlife research budget invested in vertebrate damage control research. Its programs deal with predators, birds, and small mammals and research programs are problem oriented. Priorities are generally developed within the organization and are usually determined by biological need.

Environmental Impact Statements, Gordon F. Snow

Vertebrate Pest Conference Proceedings: 6th (1974)

The National Environmental Policy Act of 1969 (NEPA) became law January 1, 1970, while the California Environmental Quality Act was adopted on September 18 of the same year. NEPA established specific action-forcing procedures for implementing the policy; created the Council on Environmental Quality (CEQA); fostered development of indices of environmental quality ; and provided for an annual CEQA report of progress. Section 102(2)(C) is the most renowned portion of NEPA. It requires the preparation of detailed written statements of environmental impacts, including alternative actions and their impacts. Section 102(2)(A) requires federal agencies to implement the integrated use of natural and …

A Safe Approach To Natural Home Ranges, As Applied To The Solution Of Edge Effect Subjects, Using Capture-Recapture Data In Vole Populations, Ryo Tanaka

Vertebrate Pest Conference Proceedings: 6th (1974)

Capture-recapture work was performed in 1970 and 1971 with Microtus montebelli seeking to disclose the edge effect subjects. For the purpose, in principle, it is needful for us to approach the reality of home range in size and shape. As the result of these studies, it has been established that the method using observed range length and width is highly available for searching after natural ranges and that the natural range of the voles (Microtus and Clethrionomys) is ordinarily on the order of 0.05 for females and of 0.10 for males in acres and generally oblong in shape such as …

Modelling For Research On Chemical Control Of Mammals In New Zealand, C.L. Batcheler, J. Bell

Vertebrate Pest Conference Proceedings: 6th (1974)

Development of predictive formulae or qualitative statements about the probable outcome of control campaigns entails knowledge of bait quality and distribution, behavior, vagaries of weather at the time of the control campaign, and other factors which govern the probability that the target animals will accept bait.

This paper collates experience in recognizing, estimating and using some of these variables for predicting the outcome of large-scale poisoning, and discusses possible approaches to the solution of some hard-core problems.

Rabbit Behavior Research In Australia And Its Relevance In Control Operations, B.V. Fennessy

Vertebrate Pest Conference Proceedings: 6th (1974)

Research in Australia on the behavior of wild rabbits has provided a basis for improvements in the tactics and strategy of control.

As the warren is a central focus for growth and survival of a population, a program for effective control or eradication should a i m at making the warren unavailable to rabbits.

Enclosure studies of behavior suggested that poisoning would be much more effective when carried out in the non-breeding season. This has been confirmed in field trials.

The behavioral importance of the odor-producing inguinal , submandibular, and anal glands is emphasized. It is suggested that further studies …

The Role Of W.H.O. In The Study And Control Of Rodent-Borne Disease, N.G. Gratz

Vertebrate Pest Conference Proceedings: 6th (1974)

While little information is available on the distribution and incidence of most of the diseases with rodent reservoirs, many of them are known to be widespread and may have considerable public health importance in some of the foci in which they are found. The World Health Organization is carrying out investigations on the epidemiology of several diseases with rodent reservoirs and on the biology and ecology of the rodent reservoir species themselves. These investigations are being carried out both at WHO research u n i t s and with collaborating laboratories. Based on the ecological information the organization is attempting …

The Role Of F.A.O. In Vertebrate Pest Problems, H.R. Shuyler

Vertebrate Pest Conference Proceedings: 6th (1974)

Since 1947, when FAO began its involvement in vertebrate pest problems, its role has gradually expanded. Through short-term Consultants, Experts, Regional and Headquarters Officers, it advises Member Countries about vertebrate pest control needs and opportunities, fulfills requests for assistance suggesting needed modifications, and guides and reports on assistance rendered. Assistance may involve one or more international specialists for a few weeks up to national and regional projects of several years' duration. In cooperation with WHO it sponsors meetings of specialists, develops rodenticide specifications for international commerce, and has published rodent bibliographies covering 1950 to 1969.

Seasonal Changes In Water Quality And Primary Productivity In Doe Valley Lake, Edmond J. Bacon, Stuart E. Neff

KWRRI Research Reports

Primary productivity and water quality were studied in Doe Valley Lake, a 147-hectare impoundment on Doe Run, a spring-fed stream in Meade County, Kentucky, from 13 June 1969 to 31 July 1972. Doe Valley Lake is monomictic during most winter seasons, but it is dimictic during more severe winters because of its morphometry and location on the borderline climatic region for dimictic lakes (37° N latitude). Oxygen depletion in the hypolimnion is severe, and anaerobic conditions usually prevail by late June. A hypolimnetic areal deficit of 0.038 mg/cm²/day was calculated. Supersaturation of oxygen in the epilimnion was common, …

Water Current, Volume 6, No. 3, March 1974

Water Current Newsletter

From the Desk of the Director
Water Resources Seminar Series
1974 Summer Institute
Administration Water Budget - FY 1975
Bureau of Reclamation
Office of Water Resources Research
Office of Saline Water
Water Resources Council
Commisson on Water Quality
US Geological Survey
Stream Channelization Critiicized
Investments in Transportation
Cloud Seeding Impacts Researched
$7 Billion Proposed for Environmental Programs
WRC Issues New Guidelines
Research Review: Biological Control of Blue-Green Algae

The Prairie Naturalist Volume 6, No.1. March 1974

The Prairie Naturalist

AVIAN MORTALITY FROM COLLISIONS WITH OVERHEAD WIRES IN NORTH DAKOTA ▪ G. L. Krapu

NOTES ON THE BIOLOGY OF THE OLIVE-BACKED POCKET MOUSE PEROGNATHUS FASCIATUS ON THE NORTHERN GREAT PLAINS ▪ J. E. Pefaur & R. S. Hoffman

NOTE: Swans Resting on the Surface of A Dry Lake ▪ D. S. Gilmer

Development Of Prediction Relationships For Water Requirements With Irrigation Cooling, Billy J. Barfield, John N. Walker, F. A. Payne

KWRRI Research Reports

A model for predicting leaf temperatures during an off-on mist cycle is presented. The model uses a combination of energy budget and aerodynamic techniques. The model was tested for dry leaf temperature and evapotranspiration predictions using average hourly data from Arizona. The accuracy was good. It was also tested for dry leaf temperature predictions using two to three minute data with a widely varying net radiation. When reasonable values of stomatal resistance were used, the agreement was again good.

The model was tested for prediction of wet leaf temperature prediction with a ten minute on, fifty minute off mist irrigation …

Water Resources News, Volume 6, No. 2, February 1974

Water Current Newsletter

From the Desk of the Director
1974 Summer Institute
NWRRI Research Seminar
Water Resources Seminar Series
Future Water Use - Coal vs. Irrigation
Yellowstone River Basin Study Proposed
EPA Increases Tuition Fees
Changing Attitudes in the Corps
Social Effects of Public Works Projects
Water Programs Reorganized, Replaced and Removed
WRC's 6-7/8% Rate May Be Reduced
Cost Sharing Receives a Back Seat
Research Review: Digital Simulation of Conjunctive-Use Irrigation in Dawson County, Nebraska

Habitat Management Series For Unique Or Endagered Species: Burrowing Owl, Mark Zarn

United States Bureau of Land Management: Staff Publications

The objective of this report is to provide BIM personnel with the latest and most up-to-date information on rare or endangered species occurring on the public domain. This will provide a tool for improved understanding of the interrelationships between the species and its environment and encourage an end product of enlightened land management which will fully consider the species welfare in all management decisions.

Prostaglandins From Plexaura Homomalla: Ecology, Utilization And Conservation Of A Major Medical Marine Resource. A Symposium, Frederick M. Bayer, Alfred J. Weinheimer

Studies in Tropical Oceanography

No abstract provided.

Life: A Computer Program For Stochastic Life Table Analysis, C. Romesburg, K. Marshall

Memorandum

No abstract provided.

Phenology And Function Of Sonoran Desert Annuals In Relation To Environmental Changes, Duncan T. Patten, Edward M. Smith

Memorandum

No abstract provided.

The Consumption, Utilization And Modification Of Nutritional Resources By The Jackrabbit (Lepus Californicus) In The Mohave Desert, V. H. Shoemaker, K. A. Nagy, W. R. Costa

Memorandum

No abstract provided.

Gas Exchange, Translocation, Root Growth, And Soil Respiration Of Great Basin Plants, M. M. Caldwell, E. J. Depuit, O. A. Fernandez, H. H. Wiebe, L. B. Camp

Memorandum

No abstract provided.

Organic Constituents In Soils, R. L. Westerman

Memorandum

No abstract provided.

Reproduction And Survivorship Of The Lizard, Uta Stansburiana, And The Effects Of Winter Rainfall, Density And Predation On These Processes, Frederick B. Turner, Philip A. Medica, Donald D. Smith

Memorandum

No abstract provided.

Phenology, Productivity And Nutrient Dynamics Of Some Cool Desert Desert Shrubs, Neil E. West, Carol Gunn

Memorandum

No abstract provided.

Distribution And Balance Of Biomass And Nutrients In Desert Shrub Ecosystems, James O. Klemmedson

Memorandum

No abstract provided.

A Generalized Phenology Submodel For Desert Plants, J. Reynolds

Memorandum

No abstract provided.

Distribution Of Soil Arthropods In Rock Valley, Nevada, Eric B. Edney, James F. Mcbrayer, Paul J. Franco, Allen W. Phillips

Memorandum

No abstract provided.

An Approach For A Photosynthesis Model Of Desert Plants, E. D. Schultze, O. L. Lange, A. Olsen

Memorandum

No abstract provided.

Meteorological Input To General-Purpose Models: A New Subroutine, David W. Goodall, Janice Robinson

Memorandum

No abstract provided.

Simulations Of Desert Biome Sites Using The General-Purpose Model, C. Gist, David W. Goodall

Memorandum

No abstract provided.