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Residues Of Ddt Dieldrin And Heptachlor In Earthworms During Two Years Following Application
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Book Synopsis Residues of DDT, Dieldrin, and Heptachlor in Earthworms During Two Years Following Application by : Charles D. Gish
Download or read book Residues of DDT, Dieldrin, and Heptachlor in Earthworms During Two Years Following Application written by Charles D. Gish and published by . This book was released on 1982 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Study plots were treated with specific quantities of active ingredient per hectare with either DDT, dieldrin, or heptachlor. Earthworms and soils were sampled from each treated plot at specific time intervals (up to 2 years after treatment) and analyzed by gas chromatography for specific pesticide residues. Individual and total metabolites in soils and earthworms tended to increase linearly with increasing levels of application. In soils, losses of specified biocides varied by species over time ranging from no significant loss to a decrease in heptachlor during the two years following application. In earthworms, maximum residues usually occurred 2-4 months after application, then declined. During the decline, residue levels were cyclic: levels elevated from late spring to early fall and depressed from late fall to early spring. High levels (usually May) and lows (usually January) coincided with seasonal high and low activity of eathworms.
Book Synopsis Habitat Use and Productivity of Canvasbacks in Southwestern Manitoba, 1961-72 by : Jerome H. Stoudt
Download or read book Habitat Use and Productivity of Canvasbacks in Southwestern Manitoba, 1961-72 written by Jerome H. Stoudt and published by . This book was released on 1982 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study of canvasback (Aythya valisineria) breeding populations, nest success, productivity, and habitat requirements was conducted from 1961 to 1972 on a 181.3 square kilometer area south of Minnedosa, Manitoba.
Book Synopsis Special Scientific Report--wildlife by : U.S. Fish and Wildlife Service
Download or read book Special Scientific Report--wildlife written by U.S. Fish and Wildlife Service and published by . This book was released on 1968 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Migration, Harvest, and Population Dynamics of Mourning Doves Banded in the Central Management Unit, 1967-77 by :
Download or read book Migration, Harvest, and Population Dynamics of Mourning Doves Banded in the Central Management Unit, 1967-77 written by and published by . This book was released on 1982 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: A banding program for mourning doves (Zenaida macroura) was conducted by the 14 Central Management Unit (CMU) States and the U.S. FIsh and Wildlife Service during 1967-74. Banding and recovery records, as well as data from annual call-count and harvest surveys, were subsequently analyzed by a subcommittee of the Central Migratory Shore and Upland Game Bird Technical Committee. This paper presents information on mourning dove habitat, hunting regulations, and harvest in the CMU; distribution and derviation of band recoveries in and from CMU; distribution of mourning dove harvest in Mexico and Central America; chronology of migration; survival and recovery rates; effects of hunting on CMU mourning dove populations; and indirect nationwide mourning dove population estimates.
Book Synopsis Technique for Structuring Wildlife Guilds to Evaluate Impacts on Wildlife Communities by : Henry L. Short
Download or read book Technique for Structuring Wildlife Guilds to Evaluate Impacts on Wildlife Communities written by Henry L. Short and published by . This book was released on 1982 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper describes a technique for ordering wildlife information according to physical strata and vegetative structure so that a variety of statistical analyses can be accomplished. Individual wildlife species are assigned to cells in a species-habitat matrix on the basis of feeding and breeding activities within physical strata in representative types of vegetative cover: the cells within the species-habitat matrix are assigned numeric values. The statistical analyses are thus based on the areas that individual species occupy within the species-habitat matrix. Computer graphics are used to represent the structure of wildlife communities and cluster analysis routines are used to describe the potential wildlife guilds that may exist in different vegetative communities. Different numbers of wildlife guilds will occur in species and presumably also of wildlife guilds present within a type of cover is modified by physical attributes of the vegetation within that cover type. The products of this analytical technique may be suitable for evaluating habitat quality, impact assessments, regional inventories and assessments of wildlife resources, and land-use planning activities.
Book Synopsis Reliability of Kill and Activity Estimates in the U.S. Waterfowl Hunter Survey by : Leigh M. Couling
Download or read book Reliability of Kill and Activity Estimates in the U.S. Waterfowl Hunter Survey written by Leigh M. Couling and published by . This book was released on 1982 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: A mail questionnaire survey of waterfowl hunters is conducted each year in the United States to provide information on waterfowl kill and hunter activity. We carried out a study using data from the 1971-73 and 1972-73 hunting seasons to determine the effectiveness of the present U.S. sampling and estimation techniques, and a number of modifications in both sampling and analysis is recommended.
Book Synopsis Changes in Vegetation Structure in Seeded Nesting Cover in the Prairie Pothole Region by : Kenneth F. Higgins
Download or read book Changes in Vegetation Structure in Seeded Nesting Cover in the Prairie Pothole Region written by Kenneth F. Higgins and published by . This book was released on 1982 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: A sample of 365 stands of seeded nesting cover (mixtures of cool-season grasses and legumes) was studied in the glaciated prairie pothole region during 1977-79. Measurements of species composition, canopy cover, plant height, and visual obstruction values differed with stand age but only in a general way when results from over the entire region were pooled. Maximum values for plant height and visual obstruction occurred once per stand during the first 10 growing seasons. Although the year of maximum growth was variable and unpredictable, stands showed trends of degeneration in height and visual obstruction after the year of maximum growth.
Book Synopsis Special Scientific Report--wildlife by :
Download or read book Special Scientific Report--wildlife written by and published by . This book was released on 1949 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bibliography of References to Avian Botulism by : Sonoma S. Wilson
Download or read book Bibliography of References to Avian Botulism written by Sonoma S. Wilson and published by . This book was released on 1982 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: This bibliography, first compiled in 1970 and published in response to many requests for information on avian botulism, has been updated to include the literature published through 1980. In general only, articles dealing primarily with the avian disease are included, as opposed to those concerned with the various aspects of the biology of Clostridium botulinum, either type C or type E.A few exceptions, such as Bengtson's report of the first isolation and description of the type C organism, are included for their historical interest. Progress reports and other administrative documents not available for distribution on request are excluded, as are textbook accounts, which are generally summaries of work published elsewhere. This bibliography was a cooperative effort by the National Wildlife Laboratory, U.S. Fish and Wildlife Service, and the U.S. National Park Service, which provided partial funding for the work. Although there was an attempt to list every important reference, no claim to complete coverage of the published literature is made and the authors will be grateful to users of the bibliography who call attention to errors or omissions.
Download or read book Resource Publication written by and published by . This book was released on 1987 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Selected Research Publication Series of the U.S. Fish and Wildlife Service, 1889-1985 by :
Download or read book Selected Research Publication Series of the U.S. Fish and Wildlife Service, 1889-1985 written by and published by . This book was released on 1987 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: A bibliography comprising annotated citations of 2037 scientific and technical publications from ten series issued by the U.S. Fish and Wildlife Service. Includes a six-page introduction containing a history of the Service and a description of the research and development series.
Book Synopsis Research and Development Series by :
Download or read book Research and Development Series written by and published by . This book was released on 1987 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Earthworms in Waste and Environmental Management by : Clive Arthur Edwards
Download or read book Earthworms in Waste and Environmental Management written by Clive Arthur Edwards and published by Balogh Scientific Books. This book was released on 1988 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conferentieverslagen over: omzetting van dierlijk en menselijk afval door wormen, beheerstechniek betreffende deze omzetting, wormen als diervoeder, inschakeling van wormen bij de produktie van plantengroeimedia, wormen voor bodemverbetering, wormen als indicatoren voor milieuverontreiniging A collection of conference reports on the vermicomposting of human and animal waste, the production of hormone like compounds by worms, worms as soil improvers and worms as indicators of soil pollution
Book Synopsis Bioaccumulation of Xenobiotic Compounds by : Des W. Connell
Download or read book Bioaccumulation of Xenobiotic Compounds written by Des W. Connell and published by CRC Press. This book was released on 2018-01-18 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the very few - if not only - books written exclusively related to this topic. This book comprehensively outlines the principles governing the accumulation of chemicals from the environment by organisms. Packed with tables and diagrams, this work reviews the experimental data available on both terrestrial and aquatic systems. It describes methods which are used to predict bioaccumulation of chemicals from their physicochemical properties. It also reviews environmental and other factors influencing bioaccumulation. This text also includes previously unpublished theoretical explanations of several bioaccumulation processes, including food chain biomagnification. Information in this exceptional volume is useful to government officials involved with environmental management, chemists, biologists, consultants working with chemical waste control, researchers, and graduate students.
Book Synopsis Handbook of Physical-Chemical Properties and Environmental Fate for Organic Chemicals, Second Edition by : Donald Mackay
Download or read book Handbook of Physical-Chemical Properties and Environmental Fate for Organic Chemicals, Second Edition written by Donald Mackay and published by CRC Press. This book was released on 2006-03-14 with total page 1000 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transport and transformation processes are key for determining how humans and other organisms are exposed to chemicals. These processes are largely controlled by the chemicals’ physical-chemical properties. This new edition of the Handbook of Physical-Chemical Properties and Environmental Fate for Organic Chemicals is a comprehensive series in four volumes that serves as a reference source for environmentally relevant physical-chemical property data of numerous groups of chemical substances. The handbook contains physical-chemical property data from peer-reviewed journals and other valuable sources on over 1200 chemicals of environmental concern. The handbook contains new data on the temperature dependence of selected physical-chemical properties, which allows scientists and engineers to perform better chemical assessments for climatic conditions outside the 20–25-degree range for which property values are generally reported. This second edition of the Handbook of Physical-Chemical Properties and Environmental Fate for Organic Chemicals is an essential reference for university libraries, regulatory agencies, consultants, and industry professionals, particularly those concerned with chemical synthesis, emissions, fate, persistence, long-range transport, bioaccumulation, exposure, and biological effects of chemicals in the environment. This resource is also available on CD-ROM
Book Synopsis Biological Monitoring of Environmental Contaminants by : Yusaf Samiullah
Download or read book Biological Monitoring of Environmental Contaminants written by Yusaf Samiullah and published by . This book was released on 1990 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Field Operations Manual for Resource Contaminant Assessment by :
Download or read book Field Operations Manual for Resource Contaminant Assessment written by and published by . This book was released on 1986 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt:
