Physical Sciences and Mathematics Commons^™

Nonfederal Automated Weather Stations And Networks In The United States And Canada: A Preliminary Survey*, Steven J. Meyer, Kenneth G. Hubbard

School of Natural Resources: Faculty Publications

Not all weather data are collected by federal agencies. Fueled by the need for more specific meteorological data in real or near-real-time, the number of automated weather stations (AWSs) and AWS networks has expanded to the state and private sector over the past decade. This study employed a survey to determine the spatial extent and disposition of these nonfederal AWSs and AWS networks in the United States and Canada, the type of measurements taken, the operating procedures (i.e., maintenance and data-retrieval techniques), and the uses of the data (e.g., research, public service, agency needs). The rapid growth and expansion in …

Opportunities To Increase Tree Planting In Shelterbelts And The Potential Impacts On Carbon Storage And Conservation, James R. Brandle

School of Natural Resources: Faculty Publications

No abstract provided.

Why Can The Weighting Parameter Of The Muskingum Channel Routing Method Be Negative?, Jozsef Szilagyi

School of Natural Resources: Faculty Publications

No abstract provided.

Atmospheric Effects On The Ndvi--Strategies For Its Removal, Y. J. Kaufman, D. Tanré, B. N. Holben, B. L. Markham, Anatoly A. Gitelson

School of Natural Resources: Faculty Publications

The compositing technique used to derive global vegetation index (NDVI) from the NOAA-AVHRR radiances, reduces the residual effect of water vapor and aerosol on the NDVI. The reduction in the atmospheric effect is shown using a comprehensive measured data set for desert conditions, and a simulation for grass with continental aerosol. A statistical analysis of the probability of occurrence of aerosol optical thickness and precipitable water vapor measured in different climatic regimes is used for this simulation. It is concluded that for a long compositing period (e.g. 27 day), the residual aerosol optical thickness and precipitable water vapor is usually …

Ectoparasitism As A Cause Of Natal Dispersal In Cliff Swallows, Charles R. Brown, Mary Bomberger Brown

School of Natural Resources: Faculty Publications

Nestling Cliff Swallows (Hirundo pyrrhonota) in southwestern Nebraska that were relatively heavily parasitized by hematophagous fleas (Ceratophyllus celsus) and swallow bugs (Oeciacus vicarius) dispersed to nonnatal colonies to breed the subsequent year, whereas nestlings that were relatively lightly parasitized returned to their natal colony to breed. There were no significant differences between dispersers and nondispersers in natal clutch size, natal brood size, relative hatching date, natal body mass, natal nest's distance from the colony's center, and natal nest's age. There were no sex differences in dispersal tendencies. Dispersing birds tended to move to smaller colonies …

The Place Of Farm Animals In Humane Sustainable Agriculture, M. W. Fox

eBooks

It is not yet widely recognized that the livestock industry has become a major threat to the world's economy, the environment, consumer health, and the food security of nations and generations to come. Farm animals do have a place in ecologically sound agriculture, but, as will be shown, they have not been properly integrated either in the United States or in other developed and less-developed nations of the world.

13.2.15. Human Disturbances Of Waterfowl: Causes, Effects, And Management, Carl E. Korschgen, Robert B. Dahlgren

Waterfowl Management Handbook

Human disturbances of waterfowl can be intentional or unintentional. They may result from overt or directed activities or may be ancillary to activities not initially thought to be of concern to birds. Some of these disturbances are manifested by alertness, fright (obvious or unapparent), flight, swimming, disablement, or death. Therefore, persons responsible for waterfowl management areas should be aware of the problems from human disturbance and should design management and facilities that increase public appreciation of waterfowl.

In the last 20 years, the intensity of water-based recreation increased drastically, especially on inland waters. Waterfowl are wary, seeking refuge from all …

13.2.7. Identifying The Factors That Limit Duck Production, James K. Ringelman

Waterfowl Management Handbook

Low duck populations in the late 1980’s and early 1990’s prompted unprecedented action from the natural resources community. Agencies and private organizations that were traditionally involved with waterfowl management redoubled their efforts, in the process forming partnerships with groups that were relatively new to the waterfowl management arena. Many resource managers who have had relatively little experience with waterfowl habitat management now find themselves expected to manage duck populations for increased production. Decades of waterfowl research and management experience have provided them with many potential management tools. Unfortunately, the absence of general guidelines for directing waterfowl management actions has put …

13.3.7. Ecology Of Playa Lakes, David A. Haukos, Loren M. Smith

Waterfowl Management Handbook

Between 25,000 and 30,000 playa lakes are in the playa lakes region of the southern high plains (Fig. 1). Most playas are in west Texas (about 20,000), and fewer, in New Mexico, Oklahoma, Kansas, and Colorado. The playa lakes region is one of the most intensively cultivated areas of North America. Dominant crops range from cotton in southern areas to cereal grains in the north. Therefore, most of the native short-grass prairie is gone, replaced by crops and, recently, grasses of the Conservation Reserve Program. Playas are the predominant wetlands and major wildlife habitat of the region.

More than 115 …

13.3.6. Ecology Of Montane Wetlands, James K. Ringelman

Waterfowl Management Handbook

Most waterfowl managers envision typical waterfowl habitat as the undulating or flat terrain characteristic of the prairie pothole region of the north-central United States or the aspen parklands of Canada. However, several other habitats in North America provide valuable resources for breeding and migrating waterfowl. Among these is the Rocky Mountain region of the western United States, which stretches in a band 100&#;500 miles (160&#;800 km) wide and 1,240 miles (1,984 km) long from south-central New Mexico to northern Montana (Figure).

Some Rocky Mountain wetland complexes contain waterfowl breeding densities that equal or exceed those of prairie breeding habitat, and …

13.1.6. Life History And Habitat Needs Of The Wood Duck, Katie M. Dugger, Leigh H. Fredrickson

Waterfowl Management Handbook

The wood duck is North America’s most widely distributed endemic species, and most of its wintering and breeding range falls within the 48 contiguous states (Fig. 1). The wood duck inhabits forested wetlands and, because of its need for nest cavities, is closely tied to North America’s remaining forest resources. Habitat destruction, market hunting, and liberal hunting seasons contributed to drastic declines and, in some cases, regional eradication of local wood duck populations. Subsequent implementation of hunting restrictions and the high reproductive rate of the species are responsible for the recovery of wood duck populations to current stable levels.

As …

Population Status And Characteristics Of Macrhybopsis Gelida, Platygobio Gracilis And Rhinichthys Cataractae In The Missouri River Basin, Selena J. Werdon

Electronic Theses and Dissertations

Few sturgeon chub (Macrhybopsis gelida: Cyprinidae) have been collected in the last decade, therefore their status, habitat selection and morphology were investigated at 172 previous collection sites. Data on two ecologically similar species, Platygobio gracilis and Rhinichthys cataractae, were also collected. Macrhvbopsis gelida were collected at 28 sites on the Powder River (n = 158) in Wyoming and Montana, and at one site on the Yellowstone River (n = 1) in Montana. Age-I, Age-II and Age-III M. gelida were collected. Specimens were 37 to 95 mm in total length. Macrhvbopsis gelida were ripe in mid-June, at water temperatures of 18.3-22. …

Micro And Macromorphology Of Recycled Fiber And Wood, Douglas D. Stokke

Douglas D. Stokke

Wood is a major industrial raw material, with U.S. consumption approaching that of aluminum, plastics, cement, and steel combined. Partially as a result of the magnitude of wood and wood products in use, these products constitute a substantial portion of the solid waste stream. In order to reduce the amount of wood and wood fiber disposed in landfills, efforts to recycle these materials into useful products such as structural composites are needed. The success of such conversion depends in part on knowledge of the morphological characteristics of various sources of secondary wood and wood fibers, and the influence of wood …

Restoring Faith In Natural Resource Policy-Making: Incorporating Direct Participation Through Alternative Dispute Resolution Processes, Kaleen Cottingham, University Of Colorado Boulder. Natural Resources Law Center

Books, Reports, and Studies

8 p. ; 28 cm

Recreation Use Limits And Allocation On The Lower Deschutes River, Sarah F. Bates, University Of Colorado Boulder. Natural Resources Law Center

Books, Reports, and Studies

iii, 73 p. ; 28 cm

Wildlife Health Centre Newsletter, Volume 1-1, Winter 1992

Canadian Cooperative Wildlife Health Centre: Newsletters and Publications

Canadian Cooperative Wildlife Health Centre is underway!
How the CCWHC will work
How to contact the Centre
The people involved
The logo
Disease update

Wildlife Damage News, Volume 3, Winter 1992

Wildlife Damage News

CONTENTS:
Coons in the Chimney
Excluding Bats from Structures
International Resolution Supports Regulated Trapping
Species Profile - Woodchuck
Wildlife Veterinarians Adopt Position Statement on Oral Rabies Vaccine
NYS Nuisance Wildlife Control Operators Become Organized
A Wildlife Professional Talks About Animal Rights and Animal Welfare
Current Literature
Meetings of Interest
The Northeast Association of Wildlife Damage Biologists

Water Quality In Minnesota

Journal of the Minnesota Academy of Science

Abstracts of articles on water quality in Minnesota.

Front Matter, Coalition For Education In The Outdoors (Ceo)

Research in Outdoor Education

The Coalition for Education in the Outdoors initiated a Research Task Force in 1990 with the purpose of supporting the conduct of research in the field and the dissemination of the results. The Symposium at Bradford Woods and these proceedings offer evidence of the success of this task force. At the 1992 Symposium, there was general agreement that the symposium be a regular occurrence. Information on future events will be available through the Coalition Office.

This article includes the Editors and Research Committee for Volume 1 as well as the Table of Contents.

Research In Outdoor Education: Individual And Personal Growth, Simon Priest

Research in Outdoor Education

This article contains the text of a keynote presentation at the Inaugural Symposium at Bradford Woods, January 1992, which focused on research into individual and personal growth through outdoor education.

Summary Of The Human/Environmental Interaction Discussion, Karla Henderson, Lisa V. Bardwell

Research in Outdoor Education

Summarizes the group discussion held following Bardwell's keynote on The Restorative Experience and Outdoor Education.

A Bigger Piece Of The Puzzle: The Restorative Experience And Outdoor Education, Lisa V. Bardwell

Research in Outdoor Education

This article contains the text of a keynote presentation at the Inaugural Symposium for Research in Outdoor Education at Bradford Woods, January 1992. The presentation focused on outdoor education as a restorative experience.

Summary Of Individual/Personal Growth Discussion, Simon Priest, Alan Ewert

Research in Outdoor Education

Summarizes the group discussion held following Priest's keynote on Individual and Personal Growth.

Research In Outdoor Education: Group Development And Group Dynamics, Leo H. Mcavoy, Denise S. Mitten, James P. Steckart, L. Alison Stringer

Research in Outdoor Education

This article contains the text of a keynote presentation at the Inaugural Symposium for Research in Outdoor Education at Bradford Woods, January 1992,. The presentation focused on the development of positive group dynamics.

Summary Of Group Development/ Group Dynamics Discussion, Leo H. Mcavoy, Anderson B. Young

Research in Outdoor Education

Summarizes the group discussion held following the keynote on group development and group dynamics.

Summary Of Therapeutic Uses Discussion, Michael Gass

Research in Outdoor Education

Summarizes the group discussion held following the keynote on therapeutic outdoor recreation.

Therapeutic Uses Of Adventure-Challenge-Outdoor-Wilderness: Theory And Research, H. Lee Gillis

Research in Outdoor Education

This article contains the text of a keynote presentation at the Inaugural Symposium at Bradford Woods, January 1992, which focused on research into therapeutic recreation.

Fear In Outdoor Education: The Influence Of Gender And Program, Anderson B. Young, Alan Ewert

Research in Outdoor Education

Using the Situational Fear Inventory, outdoor course participants identified the degree to which they experienced social-based and physical-based anxieties at the beginning, middle, and end of their course. Levels of social-based fears were higher and more resistant to modification. Females expressed higher levels of fears. Most fears were reduced significantly through program participation.

Optimal Experience Among Campers In A Resident Camp Setting, M. Deborah Bialeschki, Karla A. Henderson

Research in Outdoor Education

The purpose of this exploratory study was to assess optimal experience, also known as "flow" and "quality of experience," in a resident camp setting. Campers from a private coeducational children's camp in the southeastern United States were asked to record descriptions of their involvement, attitudes, and feelings during randomly selected times during two camp sessions in 1991. The research questions addressed were: How do experiences associated with a quality of experience and flow occur in the resident camp setting? How frequently do they occur? What implications does an understanding of flow have for providing better camp experience.,? Based on this …

Outcomes Of Adventure Program Participation By Adolescents Involved In Psychiatric Treatment, Jeffrey P. Witman

Research in Outdoor Education

This study investigated selected outcomes of adventure program participation by adolescents involved with psychiatric treatment. This study was one component of a larger study of adventure outcomes among adolescents in treatment A random (N=42) sample of program participants at 12 sites (hospitals, treatment centers) were involved. The participants were asked a week after their involvement in adventure experiences, to indicate the extent to which they had shared information about the adventure experience with others and bad applied attitudes and skills gained in the program. The findings suggested that adolescents in treatment talk about the adventure experience and apply it in …