Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Environmental Sciences

Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 14941 - 14970 of 18639

Full-Text Articles in Entire DC Network

Study Of The Leaching Of Pentachlorophenol From Treated Utility Poles, Jingyi Zhang Jan 1994

Study Of The Leaching Of Pentachlorophenol From Treated Utility Poles, Jingyi Zhang

Theses

Pentachlorophenol ( PCP ) has been used as a preservative in wood industry over 40 years. If new regulations are passed, the disposal of used treated utility poles in landfills could be restricted because of the toxic properties of PCP. This study was undertaken to provide a better understanding of the rates and mechanisms of leaching of PCP from these poles.

Following the initial analytical method development for PCP determination, a study was done to apply and validate the method in a leaching characteristics study of PCP from Douglas Fir and Southern Pine.

The major factors which influence the leaching …


Family Odontophoridae (New World Quails), John P. Carroll Jan 1994

Family Odontophoridae (New World Quails), John P. Carroll

School of Natural Resources: Faculty Publications

Class AVES

Order GALLIFORMES

Suborder PHASIANI

Family ODONTOPHORIDAE

(NEW WORLD QUAILS)

  • Fairly small terrestrial birds with compact body, strong legs, and short wings.
  • 17-37 cm
  • Neotropical and Nearctic Regions
  • Tropical, subtropical and temperate forests, forest edge, savanna and agricultural land, from sea-level to 3300 m.
  • 9 genera, 32 species, 139 taxa.
  • 2 species threatened; none extinct since 1600.


A River Ran Through It... : The Cultural Ecology Of The Santa Clara Valley Riparian Zone, Erin M. Reilly Jan 1994

A River Ran Through It... : The Cultural Ecology Of The Santa Clara Valley Riparian Zone, Erin M. Reilly

Research Manuscript Series

This study addresses the nature of human interaction with the riparian environment in the Santa Clara Valley over time. This is not a new anthropological theme. Literature dates to 1863 The Earth as Modified by Human Action, by George P. Marsh); cultural ecologist Betty J Meggars stated: "The relationship- of culture to environment is one of the oldest problems in the science of anthropology ... "(Meggars, 1968:19); and, anthropologist Alfred Kroeber said: "no culture is wholly intelligible without reference to the nonculture, or so-called environmental factors with which it is in relation and which condition it "(Kroeber 1906:297).

Along these …


Incorporating Local Community Attitudes, Beliefs And Values, Into Coastal Zone Management Solutions: A Case Study Samana Bay, Dominican Republic, Jennifer Mccann Jan 1994

Incorporating Local Community Attitudes, Beliefs And Values, Into Coastal Zone Management Solutions: A Case Study Samana Bay, Dominican Republic, Jennifer Mccann

Marine Affairs Theses and Major Papers

The purpose of this research is to identify the attitudes, beliefs and values of the local Samana people concerning the Samana Bay marine resources and then integrate these results into suggestions for improving coastal zone management. This information will be of use for project development by the Washington, D.C. based non-profit organization the Center for Marine Conservation (CMC) and the Dominican non-profit organization Center for the Conservation and Eco Development for Samana Bay and its Surroundings (CEBSE) as well as for the regional biosphere reserve management plan. The first objective of the research is to provide a socioeconomic description of …


A Marina Leasing Proposal For The State Of Rhode Island, William A. Archambault Jan 1994

A Marina Leasing Proposal For The State Of Rhode Island, William A. Archambault

Marine Affairs Theses and Major Papers

This thesis examines whether Rhode Island has the authority to lease marinas their submerged lands, and if so, is the fee structure of the CRMC's proposed plan equitable to marinas in the State? The thesis determined that under the powers of the Public Trust Doctrine, Rhode Island has the right to implement a marina leasing program, but implementation of a program may prove to be problematic for the State. The thesis identified that the CRMC's proposed lease rate would be inequitable to marinas in Rhode Island. Marinas subject to the CRMC program would pay the same lease fee per slip, …


The Arctic Environmental Protection Strategy: A Comparison With The Approach Of The Unep Regional Seas Programme, Vinton Valentine Jan 1994

The Arctic Environmental Protection Strategy: A Comparison With The Approach Of The Unep Regional Seas Programme, Vinton Valentine

Marine Affairs Theses and Major Papers

In the past two decades, there has been a rise in the number of multilateral regional agreements for marine environmental protection. A large proportion of these regional agreements are the result of the United Nations Environment Programme's (UNEP) Regional Seas Programme. While there are thirteen regional seas under the Programme, the Arctic Ocean is not, and never was, one of them. In describing concerns regarding the Arctic environment and approaches to handle them, a number of commentators have proposed the application of UNEP Regional Seas Programme approach to the Arctic region. However, despite an attempt from the Inuit Circumpolar Conference …


The Persian Gulf Oil Spill: A Case Study Of Emerging International Law On Environmental Damages During Hostilities, Esther J. Mcclure Jan 1994

The Persian Gulf Oil Spill: A Case Study Of Emerging International Law On Environmental Damages During Hostilities, Esther J. Mcclure

Marine Affairs Theses and Major Papers

During the 1991 Persian Gulf War, the retreating Iraqis caused the deliberate discharge of six million barrels of oil into the shallow waters of the Persian Gulf. The immediate impact on the ecosystem was dramatic, and, because of the intense media coverage of the conflict, highly visible to the American public. The spill popularized the term 'ecoterrorism' and raised serious questions about the applicability of international law to the situation. There are numerous conventions that seek to establish standards of due diligence for the prevention of accidental pollution and to impose civil liability on those who damage the environment, but …


Considerations For Evaluating Ultraviolet Radiation-Induced Genetic Damage Relative To Antarctic Ozone Depletion, Deneb Karentz Jan 1994

Considerations For Evaluating Ultraviolet Radiation-Induced Genetic Damage Relative To Antarctic Ozone Depletion, Deneb Karentz

Biology Faculty Publications

Springtime ozone depletion over the Antarctic results in increased UVB in local marine environments. It has been established that decreases in primary productivity occur with decreases in ozone concentrations, but the impact of increased UVB on the functioning and stability of the ecosystem has not yet been determined. Very little has been done to evaluate the potential for genetic damage caused by the increase in UVB, and this type of damage is most significant relative to the fitness and maintenance of populations. An essential problem in evaluating genotoxic effects is the lack of appropriate techniques to sample and quantify genetic …


Fisheries Research Report No 101 - The Big Bank Region Of The Limited Entry Fishery For The Western Rock Lobster, Panulirus Cygnus, C F. Chubb, E H. Barker, C J. Dibden Jan 1994

Fisheries Research Report No 101 - The Big Bank Region Of The Limited Entry Fishery For The Western Rock Lobster, Panulirus Cygnus, C F. Chubb, E H. Barker, C J. Dibden

Fisheries Research Reports

The Big Bank region lies to the north of the Abrolhos Islands zone of the limited entry western rock lobster fishery (Zone A) close to the edge of the continental shelf. Since 1986/87 the catches from this previously lightly exploited region have become important to a number of rock lobster fishermen operating in the northern (A and B) zones.

Fishing at Big Bank occurred predominantly in January and February of each season, however, recently introduced regulations have closed the region to fishing until February 10 each year. A maximum of 83 boats have operated in the region catching up to …


Topic Bibliography On Sources Related To Service And Environment, Robin Vue Benson, Robert D. Shumer Jan 1994

Topic Bibliography On Sources Related To Service And Environment, Robin Vue Benson, Robert D. Shumer

Bibliographies

The sources listed on the following pages are in response to requests for information on service-learning and the environment. They were obtained primarily by conducting searches of the ERIC database on CD-ROM. Broad topics were chosen for a comprehensive selection of references. With several hundred records identified, only those with the closest relevance to the topic are included here. Where a source is available through EDRS, an ERIC number is included. In addition, references from several service-learning bibliographies and other references are included. The search for more sources of information on this topic is ongoing and this compilation will be …


Exploring The Islands: An Educator's Manual For Teaching Primary Students About The Channel Islands, Debra Jean Everton Jan 1994

Exploring The Islands: An Educator's Manual For Teaching Primary Students About The Channel Islands, Debra Jean Everton

Theses Digitization Project

No abstract provided.


A Thematic Guide Involving Students In Literature-Based Activities Utilizing Animals, Carole Anne Mattera, Patricia Anne Atherton Jan 1994

A Thematic Guide Involving Students In Literature-Based Activities Utilizing Animals, Carole Anne Mattera, Patricia Anne Atherton

Theses Digitization Project

No abstract provided.


Environmental Education Resource Directory For San Bernardino, Riverside And Orange Counties, Charles A. Perez Jan 1994

Environmental Education Resource Directory For San Bernardino, Riverside And Orange Counties, Charles A. Perez

Theses Digitization Project

No abstract provided.


Energy Watch: An Energy Conservation Project For Elementary Schools, Bonnie R. Trusler Jan 1994

Energy Watch: An Energy Conservation Project For Elementary Schools, Bonnie R. Trusler

Theses Digitization Project

The goal of this project was to organize and implement an energy conservation program for second and fifth grade students that would increase their overall awareness and understanding of energy concepts and energy conservation.


Quality Wool Production At Lower Cost, Peter Metcalfe Jan 1994

Quality Wool Production At Lower Cost, Peter Metcalfe

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

Low wool prices are forcing farmers to reduce their sheep management costs but, fortunately, cost cutting is not resulting in lower wool production, poorer wool quality or lessened sheep care on the best wool growing properties.


Windbreaks For Livestock Operations, Vernon Quam, Ladon Johnson, Bruce Wight, James R. Brandle Jan 1994

Windbreaks For Livestock Operations, Vernon Quam, Ladon Johnson, Bruce Wight, James R. Brandle

School of Natural Resources: Faculty Publications

Windbreaks play an important role in the protection of livestock, particularly in young animals and in areas with cold northerly winds during the winter and early spring. Properly placed windbreaks can provide benefits to feedlots, livestock pastures, and calving areas. Reducing wind speed in winter lowers animal stress, improves animal health, and increases feeding efficiency. Livestock windbreaks provide significant amounts of wildlife habitat, protect the working environment in and around the livestock area, and screen noise and odors associated with livestock operations.

Specific needs of animals dictate that special attention be given to access, snow storage, and drainage when planning …


Comparison Of Dietary Overlap Between Allopatric And Sympatric Geckos, Paul D. Klawinski, R. Kathryn Vaughan, Daniel Saenz, William Godwin Jan 1994

Comparison Of Dietary Overlap Between Allopatric And Sympatric Geckos, Paul D. Klawinski, R. Kathryn Vaughan, Daniel Saenz, William Godwin

Faculty Publications

Two gecko species, Hemidactylus turcicus and Cyrtopodion scabrum, have been introduced into the Port of Galveston, Texas. While H. turcicus has been established for a longer period of time, the relatively recent introduction of C. scabrum near the entrance of the Port has apparently led to the displacement of H. turcicus in that area. This has resulted in a distribution in which the two populations’ are largely allopatric except for a narrow band of sympatry at the periphery of each of their ranges. We examined stomach contents of both species in allopatry and sympatry in order to determine if …


Land Use Patterns In Relation To Lake Water Quality In The Long Pond, North Basin Watershed, Problems In Environmental Science Course (Biology 493), Colby College, Colby Environmental Assessment Team, Colby College Jan 1994

Land Use Patterns In Relation To Lake Water Quality In The Long Pond, North Basin Watershed, Problems In Environmental Science Course (Biology 493), Colby College, Colby Environmental Assessment Team, Colby College

Colby College Watershed Study: Long Pond, North (2006, 1994)

Long Pond has been used recreationally over time for boating, fishing and swimming. Additional uses include drinking water and various types of waste disposal. In past winters, sawdust from lumber mills has been placed on the ice that covers the north basin of Long Pond (Ed Mayer pers. comm.). This may raise total phosphorus levels at depth and could lead to problems in the future. Activities which raise organic sediments input into the lake should be avoided.

A major purpose of our study was to analyze the present water quality of Long Pond, North Basin, including the biotic and abiotic …


Ua3/8/1 L.Y. Lancaster Professorship Report, Wku Ogden College Of Science & Technology Jan 1994

Ua3/8/1 L.Y. Lancaster Professorship Report, Wku Ogden College Of Science & Technology

WKU Administration Documents

Report of activities by Dr. Blaine Ferrell, L.Y. Lancaster Professor for the year 1993-94, funded by Ogden Foundation.


Bird Dispersal Techniques, Thurman W. Booth Jan 1994

Bird Dispersal Techniques, Thurman W. Booth

Prevention and Control of Wildlife Damage Handbook

Birds, especially migratory birds, provide enjoyment and recreation for many and greatly enhance the quality of our lives. These colorful components of natural ecosystems are often studied, viewed, photographed, hunted, and otherwise enjoyed. Unfortunately, bird activities sometimes conflict with human interests. Birds may depredate agricultural crops, create health hazards, and compete for limited resources with other more favorable wildlife species. The management of bird populations or the manipulation of bird habitats to minimize such conflicts is an important aspect of wildlife management. Problems associated with large concentrations of birds can often be reduced through techniques of dispersal or relocation of …


Blackbirds, Richard A. Dolbeer Jan 1994

Blackbirds, Richard A. Dolbeer

Prevention and Control of Wildlife Damage Handbook

The term blackbird loosely refers to a diverse group of about 10 species of North American birds that belong to the subfamily Icterinae. Identification, range, habitat, food habits, general biology, and damage to crops of Red-winged Blackbirds (Agelaius phoeniceus), Common Grackles (Quiscalus quiscula), Great-tailed Grackles (Q. mexicanus), Brown-headed Cowbirds (Molothrus ater), Yellow-headed Blackbirds (Xanthocephalus xanthocephalus), Brewer’s Blackbirds (Euphagus cyanocephalus), and Rusty Blackbirds (E. carolinus).


Preface And Table Of Contents Jan 1994

Preface And Table Of Contents

Prevention and Control of Wildlife Damage Handbook

This handbook is a comprehensive reference of North American vertebrate species that can cause economic damage to resources or become a nuisance at various times and places. It is intended for use by extension agents and specialists, wildlife biologists, animal control officers, public health personnel, pest control operators, teachers and students of wildlife biology, and others who deal with wildlife damage problems.

Wildlife damage management is an essential part of contemporary wildlife management. During the past decade there has been significant research and development in this field. This publication is a condensation of current, research-based information on wildlife that cause …


Obtaining Assistance To Control Wildlife Damage, Philip S. Gipson, Russel F. Reidinger Jr. Jan 1994

Obtaining Assistance To Control Wildlife Damage, Philip S. Gipson, Russel F. Reidinger Jr.

Prevention and Control of Wildlife Damage Handbook

The Wildlife Society (TWS) policy statement for wildlife damage control (1992) states: “Prevention or control of wildlife damage . . . is an essential and responsible part of wildlife management.” The role of wildlife damage control in our society is changing and so is public perception of it. This change is recognized among wildlife managers and researchers. Efforts are under way to make the wildlife damage control profession more responsive to concerns of society. Formal petition for the establishment of a Wildlife Damage Working Group within TWS was made to the Wildlife Society Council on March 21, 1993 and the …


Mountain Lions (Felis Concolor), James E. Knight Jan 1994

Mountain Lions (Felis Concolor), James E. Knight

Prevention and Control of Wildlife Damage Handbook

The mountain lion (cougar, puma, catamount, panther) is the largest cat native to North America. The mountain lion (Felis concolor) can be found in a variety of habitats including coniferous forests, wooded swamps, tropical forests, open grasslands, chaparral, brushlands, and desert edges. Mountain lions are carnivorous. The range of the mountain lion in North America. Mountain lions are shy, elusive, and primarily nocturnal animals that occasionally are active during daylight hours. Mountain lions are predators on sheep, goats, cattle, and horses. House cats, dogs, pigs, and poultry are also prey.


Weasels, F. Robert Henderson Jan 1994

Weasels, F. Robert Henderson

Prevention and Control of Wildlife Damage Handbook

Weasels (Mustela nivalis and M. erminea) belong to the Mustelidae family, which also includes mink, martens, fishers, wolverines, badgers, river otters, black-footed ferrets, and four species of skunks. Three species of weasels live in North America. Some authors report finding weasels only in places with abundant water, although small rodents, suitable as food, were more abundant in surrounding habitat. The weasel family belongs to the order Carnivora. Weasels are active in both winter and summer; they do not hibernate. Occasionally weasels raid poultry houses at night and kill or injure domestic fowl.


Moles, F. Robert Henderson Jan 1994

Moles, F. Robert Henderson

Prevention and Control of Wildlife Damage Handbook

Yates and Pedersen (1982) list seven North American species of moles. They are the eastern mole (Scalopus aquaticus), hairy-tailed mole (Parascalops breweri), star-nosed mole (Condylura cristata), broad-footed mole (Scapanus latimanus), Townsend’s mole (Scapanus townsendii), coast mole (Scapanus orarius), and shrew mole (Neurotrichus gibbsii). Out of the seven species that occur in North America, three inhabit lands east of the Rocky Mountains (Yates and Pedersen 1982). The mole lives in the seclusion of underground burrows, coming to the surface only rarely, and then often by accident. The …


Opossums, Jeffrey J. Jackson Jan 1994

Opossums, Jeffrey J. Jackson

Prevention and Control of Wildlife Damage Handbook

An opossum (Didelphis virginiana) is a whitish or grayish mammal about the size of a house cat. Opossums are found in eastern, central, and west coast states. Habitats are diverse, ranging from arid to moist, wooded to open fields. Foods preferred by opossums are animal matter, mainly insects or carrion. Opossums usually live alone, having a home range of 10 to 50 acres (4 to 20 ha). Although opossums may be considered desirable as game animals, certain individuals may be a nuisance near homes where they may get into garbage, bird feeders, or pet food. Laws protecting opossums …


Wild Pigs, Reginald H. Barrett, Grant H. Birmingham Jan 1994

Wild Pigs, Reginald H. Barrett, Grant H. Birmingham

Prevention and Control of Wildlife Damage Handbook

Wild pigs (Sus scrofa) include both feral hogs (domestic swine that have escaped captivity) and wild boar, native to Eurasia but introduced to North America to interbreed with feral hogs. Christopher Columbus first introduced members of the family Suidae into North America in 1493 in the West Indies. A variety of habitats, from tidal marshes to mountain ranges, are suitable for wild pigs. Types of food vary greatly depending on the location and time of year. Wild pigs are intelligent animals and readily adapt to changing conditions. Wild pigs can cause a variety of damage. Wild pigs are …


Jackrabbits And Other Hares, James E. Knight Jan 1994

Jackrabbits And Other Hares, James E. Knight

Prevention and Control of Wildlife Damage Handbook

Three major species of jackrabbits occur in North America: Blacktail jackrabbit (Lepus californicus), whitetail jackrabbits (L. townsendii), and showshoe hare (L. americanus). The whitetail jackrabbit is found mainly in the north central and northwestern United States and no further south than the extreme north central part of New Mexico and southern Kansas. Members of the genus Lepus are born well-furred and able to move about. Hares consume 1/2 to 1 pound (1.1 to 2.2 kg) of green vegetation each day. Jackrabbits are considered nongame animals in most states and are not protected …


Shrews, Robert H. Schmidt Jan 1994

Shrews, Robert H. Schmidt

Prevention and Control of Wildlife Damage Handbook

The shrew (Sorex cinereus) is a small, mouse-sized mammal with an elongated snout, a dense fur of uniform color, small eyes, and five clawed toes on each foot. Shrews are broadly distributed throughout the world and North America. Shrews vary widely in habitat preferences throughout North America. Shrews are in the taxonomic order Insectivora. Shrews are among the world’s smallest mammals. Most species of shrews do not have significant negative impacts and are not abundant enough to be considered pests.