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

Physical Sciences and Mathematics Commons™

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

Environmental Sciences

Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 49711 - 49740 of 52414

Full-Text Articles in Physical Sciences and Mathematics

Final Report On The Recreation Plan For Dickey-Lincoln School Lakes Project, Maine : Prepared For The Corps Of Engineers, New England Division, Northern Maine Regional Planning Commission, Land Use Consultants, Inc Jan 1977

Final Report On The Recreation Plan For Dickey-Lincoln School Lakes Project, Maine : Prepared For The Corps Of Engineers, New England Division, Northern Maine Regional Planning Commission, Land Use Consultants, Inc

Dickey-Lincoln School Lakes Project

The purpose of this report is to evaluate and describe the existing recreational use and resources of the project area and the encompassing study area and to project the future use of those resources both with and without the Dickey-Lincoln School Lakes Project. This study develops and evaluates a concept plan for the recreation potential of the Dickey-Lincoln School project and assesses the recreational impact of this recommended concept plan.

Go to article

Social Impact Summary : Dickey-Lincoln School Lakes Project / Prepared For The Department Of The Army, Corps Of Engineers, New England Division, Edward C. Jordan Company, Inc. Jan 1977

Social Impact Summary : Dickey-Lincoln School Lakes Project / Prepared For The Department Of The Army, Corps Of Engineers, New England Division, Edward C. Jordan Company, Inc.

Dickey-Lincoln School Lakes Project

The Dickey-Lincoln Hydroelectric Dam is a water resources project proposed by the Federal Government (U. S. Army Corps of Engineers). Therefore, in accordance with the National Environmental Policy Act, the Corps of Engineers is required to prepare an environmental impact statement (EIS) on the project. A federal plan or project such as Dickey-Lincoln should take into account its effect upon man's health, safety, welfare and economic well-being, as well as effects upon the surrounding environment. More importantly, project plans should be evaluated in a "manner calculated to encourage harmony between man and his environment." In other words, project plans or …

Go to article

Economic Impacts Summary : Dickey-Lincoln School Lakes Project, Edward C. Jordan Co. Inc, United States Army Corps Of Engineers, New England Division Jan 1977

Economic Impacts Summary : Dickey-Lincoln School Lakes Project, Edward C. Jordan Co. Inc, United States Army Corps Of Engineers, New England Division

Dickey-Lincoln School Lakes Project

Objective of this study will be to assess Dickey-Lincoln in terms of its attainment of project objectives. How will this be done? The Water Resources Council in "Water and Related Land Resources -Establishment of Principles and Standards for Planning"' states that: The overall purpose of water and land resource planning is to promote the quality of life, by reflecting society's preferences for attainment of the objectives...

Go to article

Transmission Reconnaissance Study : Dickey-Lincoln School Lakes Project, United States Department Of Interior Jan 1977

Transmission Reconnaissance Study : Dickey-Lincoln School Lakes Project, United States Department Of Interior

Dickey-Lincoln School Lakes Project

Two dams are proposed on the St. John River in northern Maine: Dickey, a high earth filled dam immediately above the confluence of the Allagash with the St. John, will have an installed generating capacity of 760 MW; and Lincoln School Dam, 11 miles downstream, a capacity of 70 MW. These dams are scheduled for completion during the mid 1980's. The U.S. Corps of Engineers, New England Division, has been allocated funds to design the project and prepare their own environmental impact statement. This report (Transmission Reconnaissance Studies) discusses alternative transmission facilities needed to connect the project with the New …

Go to article

Summary Of Labor Impacts During Construction : Dickey-Lincoln School Lakes Project, Edward C. Jordan Company, Inc. Jan 1977

Summary Of Labor Impacts During Construction : Dickey-Lincoln School Lakes Project, Edward C. Jordan Company, Inc.

Dickey-Lincoln School Lakes Project

This study is to assess the effects or impacts of construction and operation of the Dickey-Lincoln hydroelectric project upon the people in the St. John Valley, Maine, and New England. Having determined the effects of the project, a second objective is to discuss mitigation of defined adverse impacts. More specifically, this study attempts to identify adverse impacts and deal with how to minimize such impacts if at all possible.

Go to article

Dickey-Lincoln School Lakes, Maine, U.S.A. And Quebec, Canada: Design Memorandum No. 4a: General Design (Revised), New England Division, United States Corps Of Engineers Jan 1977

Dickey-Lincoln School Lakes, Maine, U.S.A. And Quebec, Canada: Design Memorandum No. 4a: General Design (Revised), New England Division, United States Corps Of Engineers

Dickey-Lincoln School Lakes Project

This design memorandum presents for review the revised general plan and data for the Dickey-Lincoln School Lakes project, Maine, U.S.A. and Quebec, Canada to provide the basis for preparation of detailed design memoranda, plans and specifications. This document presents revisions to the basic project plan and related data included in the 1967 General Design Memorandum reflecting current water resource requirements. This memorandum serves as a functional design document and 1s presented 1n Phase II level of detail. However, 1n view of the long period of Inactivity, Phase I features have also been incorporated for continuity of project information.

Go to article

Cultivar Evaluation In High Rainfall Areas, D J. Gillespie Jan 1977

Cultivar Evaluation In High Rainfall Areas, D J. Gillespie

Experimental Summaries - Plant Research

1. Trikkala Evaluation Trial 76MT3. A joint trial with D.A. Nicholas. The trial's aim is to compare the competitive ability under grazing of Trikkala and Yarloop clover on a waterlogged new land site. The competitive ability to be measured in the presence and absence of clover scorch. (Kabatiella caulivora). 2. Pasture deterioration. Field experiments. Three trials established in 1975 to determine whether various cultivation techniques could control root rot and. subsequent pasture deterioration have now concluded. 3. Lucerne productivity and persistence. 4. Effects of saline irrigation water on pasture production. During the 1976/77 irrigation season the effects on pasture production …

Go to article

Brachiopods From The Caribbean Sea And Adjacent Waters, Arthur G. Cooper Jan 1977

Brachiopods From The Caribbean Sea And Adjacent Waters, Arthur G. Cooper

Studies in Tropical Oceanography

No abstract provided.

Go to article

Mañana Volverá El Sol, Ana Mayayo, Aldemaro Romero Jr. Jan 1977

Mañana Volverá El Sol, Ana Mayayo, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

Go to article

Daily Maximum And Minimum Temperature Forecasts And The Influence Of Snow Cover, Kenneth F. Dewey Jan 1977

Daily Maximum And Minimum Temperature Forecasts And The Influence Of Snow Cover, Kenneth F. Dewey

School of Natural Resources: Faculty Publications

Research into the relationship between snow cover and observed maximum and minimum temperatures is reviewed. An example of the importance of snow cover and forecasting max/min temperatures is presented for this past winter (1976-77). It is shown that there was a warm bias in the MOS temperature forecasts for the northern Great Plains following the receipt of a fresh cover of snowfall. it is proposed that snow cover be incorporated as a conditional predictor to be used only during specific synoptic conditions.

Go to article

Preliminary Survey Of Heavy Metal Contamination Of Channel Catfish In Nebraska, David Oates, Norman Stucky Jan 1977

Preliminary Survey Of Heavy Metal Contamination Of Channel Catfish In Nebraska, David Oates, Norman Stucky

Nebraska Game and Parks Commission: Staff Research Publications

The concentration of six heavy metals in channel catfish (Ictalurus punctatus) fillets from seven watersheds In Nebraska have been measured. With the exception of mercury, in no instance did levels exceed limits set by regulatory agents. Also, with the exception of mercury, concentrations of heavy metals did not differ significantly in the agricultural and industrial areas.

Go to article

Northern Arkansas Groundwater Inventory, H. Macdonald, Doy L. Zachry, Hugh Jeffus Jan 1977

Northern Arkansas Groundwater Inventory, H. Macdonald, Doy L. Zachry, Hugh Jeffus

Technical Reports

No abstract provided.

Go to article

Population, Home Range, And Dispersal Of Red Foxes In East-Central South Dakota, James D. Sweeting Jan 1977

Population, Home Range, And Dispersal Of Red Foxes In East-Central South Dakota, James D. Sweeting

Electronic Theses and Dissertations

The population, dispersal movements and summer home range of red foxes (Vulpes vulpes) were studied in east-central South Dakota during 1974 and 1975. The spring population density of foxes on a 23,319 ha study area declined from 9.2 families/township in 1974 to 7.6 families/township in 1975. Fifty-four percent of 130 foxes tagged in spring, 1974 and 1975 were recovered during the first year following tagging. Hunting and trapping accounted for 18.0 and 77.8 percent, respectively. Recoveries revealed that dispersing juvenile male foxes were more mobile than juvenile females; juvenile foxes traveled a mean distance of 39 km for males and …

Go to article

Embryopathic Effects Of Waterborne And Sediment-Accumulated Cadmium, Mercury And Zinc On Reproduction And Survival Of Fish And Amphibian Populations In Kentucky, Wesley J. Birge, Jeffrey A. Black, Albert G. Westerman, Paul C. Francis, Jarvis E. Hudson Jan 1977

Embryopathic Effects Of Waterborne And Sediment-Accumulated Cadmium, Mercury And Zinc On Reproduction And Survival Of Fish And Amphibian Populations In Kentucky, Wesley J. Birge, Jeffrey A. Black, Albert G. Westerman, Paul C. Francis, Jarvis E. Hudson

KWRRI Research Reports

Fish and amphibian egg cultures were used to determine the embryopathic effects of cadmium, mercury, and zinc released from natural and metal-enriched sediments, and to develop egg culture bioassay procedures suitable for monitoring bottom sediments for hazardous contaminants. Eggs of the narrow-mouthed toad (Gastrophryne carolinensis), goldfish (Carassius auratus), and rainbow trout (Salmo gairdnei) were cultured in contaminant-free water added to natural and metal-enriched sediments. Exposure was initiated after fertilization (toad, goldfish) or at 10 days prehatching (trout) and maintained continuously through 4-10 days posthatching. Sediments were enriched with 0.1-100 ppm cadmium and mercury and …

Go to article

Teacher's Guide Planning A 6th Grade Outdoor Education Program For Your School, William Arnold Muench Jan 1977

Teacher's Guide Planning A 6th Grade Outdoor Education Program For Your School, William Arnold Muench

Theses Digitization Project

No abstract provided.

Go to article

Las Largas Manos De La Petrolcracia, Aldemaro Romero Jr. Jan 1977

Las Largas Manos De La Petrolcracia, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

Go to article

Hydrology And Water Quality In The Central Kentucky Karst: Phase 1, James F. Quinlan, Donald R. Rowe Jan 1977

Hydrology And Water Quality In The Central Kentucky Karst: Phase 1, James F. Quinlan, Donald R. Rowe

KWRRI Research Reports

Study of springs and cave streams has shown that heavy metal-rich effluent from a wastewater treatment plant can be traced to Hidden River Cave (beneath the city of Horse Cave) and thence 4 to 5 miles north to a group of 39 springs at 14 locations along a 5-mile reach of Green River. Nickel, chromium, copper and zinc in these effluent-bearing springs are in concentrations of as much as 30 times greater than other springs upstream and downstream from this reach, 20 times greater than the Green River, and 60 times greater than in shallow domestic wells between Horse Cave …

Go to article

A Model For Solid Waste Collection Costs, Bruce Anderson Jan 1977

A Model For Solid Waste Collection Costs, Bruce Anderson

Retrospective Theses and Dissertations

No abstract provided.

Go to article

Impact Of Dredging In Tampa Bay 1976, Roy R. Lewis Iii Jan 1977

Impact Of Dredging In Tampa Bay 1976, Roy R. Lewis Iii

Reports

During the last 100 years four major types of dredging have impacted the bay: channel deepening, maintenance dredging, shell dredging, and dredging for landfill construction. These landfills have resulted in the loss of 44% of the original marine wetlands bordering Tampa Bay. Recent environmental concerns have halted landfill dredging and severely restricted maintenance dredging.

Go to article

The Rainbow Trout In The North Platte Valley, Rod Van Velson Jan 1977

The Rainbow Trout In The North Platte Valley, Rod Van Velson

Nebraska Game and Parks Commission: Publications

LAKE McCONAUGHY is the only Great Plains reservoir that supports a self-sustaining rainbow trout population. This unique rainbow population lives during the spring, summer and fall in Lake McConaughy and spawns during the winter in tributary streams of the North Platte River in the Scottsbluff area. The Game and Parks Commission was concerned because not enough information was available to properly manage the rainbow trout population under increased fishing pressure. During the mid-1960's a study was initiated to collect information and prepare a rainbow trout management plan for the upper North Platte River drainage. This publication is part of that …

Go to article

Digestibility Of Common Forage Plants And Energetic Requirements Of The Black-Tailed Prairie Dog, Maureen A. Beckstead Jan 1977

Digestibility Of Common Forage Plants And Energetic Requirements Of The Black-Tailed Prairie Dog, Maureen A. Beckstead

Electronic Theses and Dissertations

Black-tailed prairie dogs (Cynomys ludovicianus) assimilated 51.5 percent of the wheatgrass (Agropyron intermedium) they consumed; thus, they would have to consume 0.148 kcal · g-1 · day-l in order to obtain the 0.076 kcal · g-1 · day-1 they would require to maintain their weight. Prairie dogs assimilated 31.5 percent of the buffalograss/blue grama mixture (Buchloe dactyloides/Bouteloua gracilis) they were fed. They would have to consume 0.229 kcal · g-1 · day-1 of this forage to assimilate 0.072 kcal · g-1 · day-1 and maintain their weight. The proximate composition of forages fed in feeding trials was similar to that …

Go to article

Food, Growth, And Reproduction Of White Crappies (Pomixis Annularis) And Black Crappies (P. Nigromaculatus) In Lake Poinsett, South Dakota, Thomas R. Busiahn Jan 1977

Food, Growth, And Reproduction Of White Crappies (Pomixis Annularis) And Black Crappies (P. Nigromaculatus) In Lake Poinsett, South Dakota, Thomas R. Busiahn

Electronic Theses and Dissertations

The food habits, food selectivity, growth, condition, and population structures of the white crappies (Pomoxis annularis) and black crappies (P. nigromaculatus) in Lake Poinsett, South Dakota, were studied from May, 1975, to May, 1976. The total food volume of 173 adult white crappies consisted of 59.0% plankton1o crustaceans, 25.2 % insects, 14.5 % fish, and 1.3 % miscellaneous organisms. The food volume of 39 adult black crappies consisted of 39.0 % planktonic crustaceans, 3.5 % insects, 57.8 % fish, and 0.7 % miscellaneous organisms. Both species selected Daphnia pulex over other zooplankton and probably contributed to its decline from 193.8/l …

Go to article

Variables Associated With Breeding Waterfowl On South Dakota Stock Ponds, Jay A. Roberson Jan 1977

Variables Associated With Breeding Waterfowl On South Dakota Stock Ponds, Jay A. Roberson

Electronic Theses and Dissertations

Use of stock watering ponds by indicated breeding pairs of waterfowl was measured in the western two-thirds of South Dakota from 1973 to 1976. Multiple regression and discriminant analyses were used to describe the habitat associated with pairs of each species. Habitat variables explained 35-47 percent of the variation in pairs having small home ranges and 26-35 percent of the variation in pairs having large home ranges. Shoreline distance account for more variation in mallard (Anas Platyrhmchos) and blue-winged teal (A. discors) pairs than any other single variable. Ponds used by these pairs and shoreline distances that averaged 590 m …

Go to article

Final Environmental Statement [For] Proposed Wilderness Classification [In] Cedar Breaks National Monument, Utah, National Park Service. Rocky Mountain Regional Office. United States. Jan 1977

Final Environmental Statement [For] Proposed Wilderness Classification [In] Cedar Breaks National Monument, Utah, National Park Service. Rocky Mountain Regional Office. United States.

Elusive Documents

No abstract provided.

Go to article

U.S.D.A.- Forest Service Environmental Statement: Salt Lake Planning Unit Proposed Land Management Plan, U.S. Department Of Agriculture Jan 1977

U.S.D.A.- Forest Service Environmental Statement: Salt Lake Planning Unit Proposed Land Management Plan, U.S. Department Of Agriculture

Elusive Documents

No abstract provided.

Go to article

Final Environmental Statement [For] Proposed Wilderness Classification [In] Cedar Break National Monument, Utah, National Park Service; Rocky Mountain Regional Office; United States Jan 1977

Final Environmental Statement [For] Proposed Wilderness Classification [In] Cedar Break National Monument, Utah, National Park Service; Rocky Mountain Regional Office; United States

Elusive Documents

No abstract provided.

Go to article

Estimate Of Production By A Population Of Fathead Minnows, Pimpephales Promelas, In A South Dakota Prairie Wetland, Ronald D. Payer Jan 1977

Estimate Of Production By A Population Of Fathead Minnows, Pimpephales Promelas, In A South Dakota Prairie Wetland, Ronald D. Payer

Electronic Theses and Dissertations

Estimates of production and population densities were obtained for an autochthonous population of fathead minnows, Pimephales promelas Rafinesque, in a South Dakota prairie wetland. The study was conducted from May to September of 1976. Population estimates were obtained using a Schnabel-type mark and recapture model. Fish were marked either by fin clipping or granular fluorescent pigments driven into the dermal tissue. Production estimates were derived both arithmetically and graphically. The estimated population of adult fathead minnows declined from 194 in May and June to 26 in July. Production by adults was estimated at 0.10 kg, or 0.0007 gm/m²/yr. The population …

Go to article

Cover Use And Activity Time Budget Of Blue-Winged Teal, Mallard, And Pintail Broods, James K. Ringelman Jan 1977

Cover Use And Activity Time Budget Of Blue-Winged Teal, Mallard, And Pintail Broods, James K. Ringelman

Electronic Theses and Dissertations

Blue-winged teal (Anas discors), mallard (A. platyrhynchos), and pintail (A. acuta) broods were observed on 17 days between 25 June and 30 July, 1976. Brood activities and cover uses were recorded continuously from first light until dark. Observations of 269 broods from three wetlands were evaluated by species and brood age-class. Activity time budgets revealed significant (p<.01) age specific differences in total feeding time and visibility among age-classes of all species combined and age-classes of blue-winged teal broods. Feeding modes also varied among age-classes. Daily patterns of cover use varied among brood age-classes and species. Morning and evening feeding peaks became more pronounced, and overall visibility increased, with brood age. Interspecific differences in daily activity patterns were observed among broods of the same age-class. Duration of active periods increased with age in blue-winged teal broods. Active periods recurred at regular intervals in all broods throughout the day, suggestive of polycyclic behavior patterns similar to those of adult ducks. A progressive increase in brood visibility was attributed primarily to seasonal changes in brood age structure and to wetland water loss. Temperature and wind speed influenced brood visibility during most observation days. Climatic conditions favorable to nighttime brood activity influenced brood behavior during the following day. Accuracy of present brood inventory techniques could be improved if considerations were made for brood behavior patterns and environmental factors which alter brood cover use.

Go to article

Wildlife Habitat Evaluation Of The Unchannelized Missouri River In South Dakota, James R. Clapp Jan 1977

Wildlife Habitat Evaluation Of The Unchannelized Missouri River In South Dakota, James R. Clapp

Electronic Theses and Dissertations

Areas of eight habitats were identified, delineated, and measured along the unchannelized Missouri River in South Dakota. Agricultural and urban developments existed on 60 percent of the land within 1 km of the river. Six habitat types made up the non-developed land in the study area: cottonwood-dogwood (16 percent), cottonwood-willow (9 percent), elm-oak (7 percent), cattail marsh (3 percent), sand dune (3 percent), and sand bar (1 percent). All non-developed habitats except sand bar were sampled to obtain vegetative composition and to determine their value to wildlife. The value of each habitat to nine faunal groups of wildlife was subjectively …

Go to article

Biology Of The Porcupine (Erethizon Dorsatum) In Northwestern South Dakota, Judith Johnson Jan 1977

Biology Of The Porcupine (Erethizon Dorsatum) In Northwestern South Dakota, Judith Johnson

Electronic Theses and Dissertations

The summer home ranges, food habits, cover preferences, population dynamics, metabolic rates, growth rates, and taxonomic characteristics were determined for porcupines (Erethizon dorsatum) in northwestern South Dakota. The summer home ranges were 158.2 ha for adult females, 90.4 ha for juveniles, and 57.9 ha for adult males. The population was 34 percent adult males, 16 percent juvenile males, 34 percent adult females, and 15 percent juvenile females. The preferred daytime cover choice was silver buffaloberry (Shepherdia argentea), followed by snowberry (Symphoricarpos occidentalis), earth dens, forbs, and low brush. Shrubs were the most important item in the diet, then trees, forbs, …

Go to article

First Prev Next Last