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Neue Literatur (Page 85), L. G. Bjazrov, Werner Hilbig

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Bibliographical references listed on page 85 in Erforschung biologischer Ressourcen der Mongolischen Volsrepublik, Band 6 (1985/1986).

Hohes Lebensalter Von Salpingotus Crassicauda Und Erfolgreiche Fortpflanzung Von Cardioeranius Paradoxus (Mammalia: Dipodidae) In Der Gefangenschaft, Michael Stubbe, Annegret Stubbe, Ravčigijn Samjaa

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Noch immer gelten zahlreiche Arten der zentralasiatischen Säugetierfauna als kaum bis wenig erforscht. Fundierte ökologische Untersuchungen an den mongolischen Springmausarten liegen bisher nicht vor. Sowohl Salpingotus crassicauda als auch Cardiocranius paradoxus sind durch ihre begrenzten Vorkommen in Kasachstan bzw. Tuva sogar im Rotbuch der Sowjetunion (1985, Literatur S. dort) verankert.

Ökologisches Monitoring Der Seen Der Mvr, A. Dulmaa

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Die Fischwirtschaft ist ein spezifischer Zweig in der Volkswirtschaft der MVR. Die Organisation der Fischwirtschaft erfordert eine wissenschaftliche Ausarbeitung seiner biologischen, technischen, technologischen und ökonomischen Grundlagen. Im Ergebnis hydrobiologischer Untersuchungen wurden bisher 600 verschiedene Benthos- und 208 Planktonorganismen gefunden, von denen mehr als 40 Arten bisher für die Wissenschaft unbekannt waren. Die Hydroflora erwies sich mit 196 Algenarten und mit ungefähr 50 Makrophyten als eigenständig. 75 Fischarten konnten nachgewiesen werden. Es wurde eine Klassifikation der Seen entsprechend ihrer Genese und ihrer biologischen und fischereiwirtschaftlichen Eigenschaften ausgearbeitet. Auf der Grundlage von ökologischen Untersuchungen der Limnofauna erfolgte eine biologische Begründung für eine …

Characteristic Of Balneologically Active Components And Microflora Under Extreme Conditions Of Mineral Waters Of The Mongolian People's Republic, G. M. Špejzer, L. A. Mineeva, N. M. Žigunova, T. N. Putjatina

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

The distribution of amino acids is irregular in mineral waters. Their content is minimum in cold carbonate waters of hydrocarbonate composition, the highest amino acid concentration does not exceed 0.640 mg N/l.

Hydrothermal solutions are enriched with amino-acids to the greatest extent, the amino contents coming up to 0.780 mg N/l in hydrotherms of sulfate-sodic composition. In thermal waters enriched with hydrosulfides. amino acids are present in quantities up to 1.710 mg N/l.

Mineralwässer wichtige Bestandteile der Biogeosphäre. Die darin enthaltenen spezifischen Komponenten bedingen ihre Wirksamkeit in biologischen Prozessen. die die Entstehung und Lebenstätigkeit von der Mikroflora bis zu den …

Artenliste Der Vögel Des Chubsugul-Gebietes, D. Sumjaa

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Die Ornisliste der Chubsugulseezone erfaJ3t gegenwärtig 244 Arten (1973 - 168 Arten). Die Liste schlieJ3t Vertreter von 17 Ordnungen, 42 Familien und 129 Gattungen ein (62,4% von allen Vogelspezies der MVR). Für das Chubsugul-Gebiet sind 56 Vogel arten erstmals beobachtet worden, davon waren 5 neu für die Fauna der MVR (Larus hyperboreus, Arenaria interpres, Aquila heliaca, Tetrao parvirostris, Plectrophenax nivalis).

In der Ornithofauna lassen sich unterscheiden: Brutvogelarten und bedingt nistende Arten 206 (46 ansässig und 160 Zugvögel), Durchzieher - 22, ,Irrgäste - 12, nur im Winter vorkommende Arten - 4. Von den 244 Vogelarten …

Wasserinsekten Des Chubsugul-Sees In Der Nordmongolei, A. A. Ždanov, E. A. Erbaeva, K. V. Varychanova, N. A. Rožkova

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

In den Grundbiozönosen des Chubsugulsees spielen Wasserinsekten mit ca. 37 % der Anzahl und 24 % der Biomasse der Benthaltiere eine bedeutende Rolle. Die Trichoptera sind durch 22 Gattungen aus den Familien Rhyacophilidae (2 Gattungen), Glossosomatidae (4), Hydroptilidae (1). Phryganeidae (2), Limnephilidae (9). Coeridae (1), Brachycentridae (2), Leptoceridae (1) vertreten. Die Nachweishäufigkeit der Trichoptera in den Proben ist genügend hoch (bis zu 30 %), aber sie beträgt im Durchschnitt 5 % der Anzahl und 5 % der Biomasse des Zoobenthos.

Im Chubsugulsee wurden 20 Gattungen von Ephemeropteren gefunden, die zu folgenden 4 Familien gehören: Heptageniidae (5), Beatidae (5). Siphlonuridae (4), …

Weitere Beiträge Zur Ernährung Des Uhus Bubo Bubo (L., 1758) In Der Westmongolei, Michael Stubbe, Hermann Ansorge, R. Piechocki, U. Lange, Ravčigijn Samjaa, D. Bartuu

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Von 4 Fundorten aus der Westmongolei, darunter erstmals aus dem Mongolischen Altai und dem diungarischen Bereich, wurden aus Uhu-Gewöllen in den Jahren 1980 bzw. 1982 1432 Vertebraten analysiert: 1335 Säugetiere (93,20 %) und 97 Vögel (6,20 %). Die Anzahl der Säugetierarten betrug 34, die der nachgewiesenen Vogelarten mindestens 38. Den wichtigsten qualitativen Be uteanteil decken die Vertreter der Arvicoliden (27,03 %) ab. In abgestufter Reihenfolge schlieJjen die Familien Dipodidae (23,74 %), Ochotonidae (20,74 %), Cricetidae (17,74 %), Leporidae (2,09 %) und Anatidae (1,60 %) an. Quantitativ wurden von den Uhus 216,6 kg konsumiert. 85,50 % der Biomasse entfielen auf Säuger, …

A Characterization Of Tampa Bay Sediments, L J. Doyle, G. R. Brooks, K. A. Fanning, E. S. Van Vleet, R. H. Byrne, N. J. Blake

Reports

This initial phase of the project involves assessing the present state of knowledge of sediments in Tampa Bay and the identification of data gaps, or areas where more detailed information is required to achieve project objectives. The literature search produced 273 data sources that from their abstracts in the data base are applicable to the project (Appendix I). Data sources were reviewed by experts in the fields of sedimentology, nutrient chemistry, organic geochemistry, trace metal and radionuclide geochemistry, and benthic biology who then contributed the following summary sections.

13.2.4. Avian Botulism: Geographic Expansion Of A Historic Disease, Louis N. Locke, Milton N. Friend

Waterfowl Management Handbook

Avian botulism is a paralytic, often fatal disease of birds resulting from ingestion of toxin produced by the bacterium Clostridium botulinum. Waterfowl die-offs from the botulism are usually caused by type C toxin; sporadic die-offs among fish-eating birds, such as common loons (Gavia immer) and gulls, have been caused by type E toxin.

Not enough is known about avian botulism to precisely identify the factors leading to an outbreak. When an outbreak does occur, it is usually perpetuated by a well-understood bird-maggot cycle (Figure 1).

13.4.11. Control Of Purple Loosestrife, Daniel Q. Thompson

Waterfowl Management Handbook

Purple loosestrife is an herbaceous perennial weed that is native to Eurasia and probably arrived in eastern North America with early maritime traffic. The spread of this alien by 1900 (Fig. 1) was closely associated with canal and waterway traffic. By 1985 (Fig. 2), this aggressive weed had spread into all of the contiguous States north of the 35th parallel except Montana; similarly, all of the southern provinces of Canada had been invaded. In the last 20 years, loosestrife has become well established in reclamation projects and riparian wetlands in the West and Northwest. It has also invaded estuarine marshes …

A Student Handbook For The Environmental Education / Outdoor School Program In The Middle School, Robert Charles Kenck Jr.

All Graduate Projects

The purpose of this project was to develop a student handbook that can be used from the onset of an environmental study through the inter-active field study. Students will use the handbook as they begin to study environmental education in the classroom. The handbook will continue to be used as each student attends a three day outdoor school to study firsthand their environment through field activities. The handbook will remain the property of the students.

Human Impacts To Minnesota Wetlands, Carol A. Johnston

Journal of the Minnesota Academy of Science

ABSTRACT-Minnesota's 3.6 million ha of wetlands have been impacted by a variety of human activities, including agricultural drainage, urbanization, water control, and nonpoint source pollution. More than half of Minnesota's wetlands have been destroyed since the first European settlers arrived, an average loss of about 35,600 ha/yr. Drainage for agriculture is the major cause of wetland loss in Minnesota, particularly in southern Minnesota and the Red River Valley. In addition to impacting wetlands directly, wetland drainage affects downstream areas by increasing flood flows, and releasing sediment and nutrients. Urban development and highway construction affect a smaller proportion of Minnesota's wetlands, …

Rottnest Island : A Reference List, Jennifer Browne

Research outputs pre 2011

No abstract provided.

Bacterial Quality Of Private Water Wells In Clark County, Arkansas, S. Conine, D. Cox, K. Mitchell, Clark Kuyper, Jimmy D. Bragg

Journal of the Arkansas Academy of Science

Most private water wells in Clark County appeared to be contaminated by bacteria, apparently entering the wells from surface water seepage. Eighteen to 24% of the wells investigated were positive for fecal contamination. Deeper wells were less often contaminated. More than one-half of the wells sampled exceeded recommended limits of inorganic chemicals for safe potable water. High concentrations of iron and manganese were most common, exceeding recommended limits in more than 40% of the wells

Loss Of Biological Diversity: A Global Crisis Requiring International Solutions: A Report To The National Science Board, Craig Call Black, Perry L. Adkisson, Gardner Mallard Brown, Rita Rossi Colwell, Charles E. Hess, James B. Holderman, K. June Lindstedt-Siva, William A. Nierenberg, Peter Hamilton Raven, Theodore M. Smith, Edward O. Wilson, W. Franklin Harris

Harold W. Manter Laboratory of Parasitology: Library Materials

Executive Summary

Biological diversity refers to the variety and variability among living organisms and the ecological complexes in which they occur. Diversity can be defined as the number of different items and their relative frequency. For biological diversity, these items are organized at many levels, ranging from complete ecosystems to the chemical structures that are the molecular basis of heredity. Thus, the term encompasses different ecosystems, species, genes, and their relative abundance (OTA, 1987).

There is an ongoing, unprecedented loss of the variety as well as absolute numbers of organisms-from the smallest microorganism to the largest and most spectacular of …

Farming Systems Research/Extension And The Concepts Of Sustainability, Charles A. Francis, Peter E. Hildebrand

Department of Agronomy and Horticulture: Faculty Publications

Farming Systems Research and Extension (FSR/E) has strongly influenced the direction of agricultural development over the past two decades. Involving farmers, change agents and researchers, this participatory approach to technological improvement has evolved as an efficient means to develop individual components and more integrated systems that are uniquely suited to specific biophysical and socioeconomic conditions. Farmers with similar conditions and for whom specific recommendations are appropriate are grouped, in FSR/E, into identifiable Recommendation Domains. The technologies recommended conform with the biophysical and socioeconomic constraints that create environments within the domains, based on the philosophy that new technologies must conform with …

Temporal And Spatial Variation In Pelagic Fish Abundance In Lake Mead Determined From Echograms, Gene R. Wilde, Larry J. Paulson

Publications (WR)

Echograms have been used extensively to locate and estimate the relative abundance of marine fish stocks (Cushing 1973). In freshwater, echograms have been used to describe vertical (Netsch et al. 1971; Eggers 1978; O'Brien et al. 1984; Matthews et al. 1985), spatial (O'Brien et al. 1984; Wanjala et al. 1986) and temporal (Baker and Paulson 1983) patterns in fish abundance. Although most uses of echograms have been qualitative, Mullan and Applegate (1969) and Matthews et al. (1985) obtained relative estimates of fish abundance by counting targets (fish) on echograms. However, neither Mullan and Applegate (1969) nor Matthews et al. (1985) …

Toxicity And Environmental Health Hazards Of Petroleum Products In Wells Used For Drinking Water In The Intermountain West, Robert D.R. Parker, Raghubir P. Sharma, R. Ryan Dupont, Gin-Chang Hsieh

Reports

Introduction: Groundwater is aprimary source of drinking water for about 50 percent of the population in the U.S. This source of drinking water has been generally regarded as safe from contamination. Several papers indicate that numerous underground storage tanks containing petroleum products may be leaking and contaminating public water supply wells across the U.S. (Matis, 1971; Ferguson, 1979; Woodhull, 1981; Burmaster and Harris, 1982; Lehman, 1984; Dowd, 1984; OTA, 1984). A study conducted by the Utah Cureau of Solid and Hazardous Wastes in 1985 concluded that there are at least 2,314 underground steel tanks, most of which are used to …

Bear River Water Quality: Bioavailable Phosphorus Measurement, Sources, And Control, Kenneth W. Barker, Darwin L. Sorensen, Jay C. Andersen, Jean M. Ihnat

Reports

No abstract provided.

The Probe, Issue 88 - December 1988

The Probe: Newsletter of the National Animal Damage Control Association

THE PROBE
National Animal Damage Control Association
DECEMBER 1988
NADCA Executive Board
UGO Logo
Endangered Species
Fourteenth Vertebrate Pest Conference
Livestock Protection Collar
NADCA Dues
Letters to Ye Ed
Progressive Animal Welfare Society
Danish Pest Infestation Lab Annual Report 1987

The Prairie Naturalist Volume 20, No. 4. December 1988

The Prairie Naturalist

Paul B. Kannowski, Editor

Nikki R. Seabloom, Assistant Editor

Douglas H. Johnson, Book Review Editor

TABLE OF CONTENTS

RANGE PLANT COMMUNITIES OF THE CENTRAL GRASSLAND RESEARCH STATION IN SOUTH CENTRAL NORTH DAKOTA ▪ C. L Lura, W. T. Barker, and P. E. Nyren

SEASONAL PATTERNS IN SAMPLING DATA FOR LARGEMOUTH BASS AND BLUE GILLS IN A NORTHERN GREAT PLAINS IMPOUNDMENT ▪ E. A. Bettross and D. W. Willis

INTRODUCTION, ESTABLISHMENT, AND DISPERSAL OF WESTERN MOSQUITOFISH IN NEBRASKA (ACTINOPTERYGII: POECILIIDAE) ▪ J. D. Lynch

OBSERVATIONS ON THE ECOLOGY OF CHIGGERS (ACARI: TROMBICULIDAE) FROM SOUTH DAKOTA ▪ E. R. Easton and W. …

Survival Of Trout Strains As Affected By Limnological Parameters, Wayne A. Wurtsbaugh

Watershed Sciences Faculty Publications

Prior work at East Canyon Reservoir, Utah indicated that adult trout are important predators of stocked juvenile rainbow trout. Brown trout, in particular, were exclusively piscivorous when th~y exceeded 185 mm standard length. Fish became increasingly important in the diet of cutthroat trout greater than 330 mm. The purpose of this study was to further document the effect of adult trout on survival of juvenile rainbow trout in mid-elevation reservoirs. Causey Reservoir was chosen because it was thought to contain large brown and cutthroat trout and had not been intensively studied during the last eight years.

The Probe, Issue 87 - November 1988

The Probe: Newsletter of the National Animal Damage Control Association

CONTENTS:
NADCA Meeting
Priorities
Retired Personnel: Rusty Birchfield
Reading Material
In Memorial: Frank Sessions
Letters to the Editor
Rodent Roast
Botulinus
Help in removing red fox
New Products
Editorial Column
NADCA Membership Application

Fisheries Report No. 81 - A Research Vessel Survey Of Pearl Oyster And Prawn Resources North-West Of Broome Western Australia, J. W. Penn, R. Dybdahl

Fisheries Research Reports

Data from a research vessel survey in September and October 1987 and commercial catch records have been used to assess the pearl oyster and prawn stocks along the Broome coastline between 17°S and 18°S latitudes. Observations made by pearl divers indicated that the survey zone contained commercially significant quantities of unfished pearl oysters particularly in the depth range 10 to 27 m, but also extending out to 44 m depth. The pearl oysters in the survey zone were found to be predominantly mature animals and appeared to be part of the now lightly fished deep water spawning population extending from …

Sperm Competition In Grey Whales, Katherine Ralls, Robert L. Brownell Jr.

United States Department of Commerce: Staff Publications

SIR-Your legend for the drawing of grey whales taken from Cyall Watson's book Whales of the World, perpetuates the myth that a 'helper' male is necessary for successful mating in this species. The legend states that: "Only one male is involved in the actual mating; the other takes an upright position on the far side of the female, acting as a prop or wedge". This description of grey whale mating behavior. paraphrased from Watson's book, can he traced to Samaras.

The Probe, Issue 86 - October 1988

The Probe: Newsletter of the National Animal Damage Control Association

THE PROBE
National Animal Damage Control Association
OCTOBER 1988
Wildlife Legislative Fund of America
APHIS Activity Report
Giardia Lamblia
Personnel
Letters to Ye Ed
Preserving Habitat

State Of The Fisheries Report 1987, Fisheries Department Of Western Australia

Status Reports of the Fisheries and Aquatic Resources

Western Australia continues to be one of the leading fishing States in Australia. The total gross value of fish, crustaceans and molluscs for 1986/87 was $172 million (Table 1) to which may be added the value of the pearl culture industry resulting in a total value of approximately $213 million.

The Probe, Issue 85 - August/September 1988

The Probe: Newsletter of the National Animal Damage Control Association

THE PROBE
National Animal Damage Control Association
AUGUST/SEPTEMBER 1988
Trapping’s Future?
The Toxic Collar
APHIS Activity Report
Pet Food Institute Report
Cholecalciferol
The Repellent, Ro-pel.
Strychnine
House/Tree Sparrows
Letters to Ye Ed

Miscellaneous Production 23/87 - Animal Production In The Spinifex And Shrubland Regions Of Western Australia, D. Burnside

Animal production and livestock published reports

The role of the Rangeland Management Branch is to promote the sustained economic use of the rangeland resource. It provides research and extension services to the pastoral industry, provides advice on the condition of the range resource to Government and provides technical information on rangelands to other rangeland managers. A principal objective to be met in fulfilling that role is the development and promotion of economically efficient place systems that conserve the rangeland resource. At the inaugural Pastoral Soil Conservation Districts Conference in Meekatharra in May 1987, pastoralist delegates emphasized the importance of achieving that objective within the various soil …

Survey Of Recent Developments In Indian Water Law: Litigation And Negotiations, Jeanne S. Whiteing

Natural Resource Development in Indian Country (Summer Conference, June 8-10)

104 pages.