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Entwicklung Und Stand Der Erforschung Der Gefäßpflanzenflora Der Mongolischen Volksrepublik, I. A. Gubanov, Werner Hilbig Jan 1988

Entwicklung Und Stand Der Erforschung Der Gefäßpflanzenflora Der Mongolischen Volksrepublik, I. A. Gubanov, Werner Hilbig

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

Zusammenfassung

Vorliegender Beitrag gibt einen überblick über die floristische Durchforschung der MVR.

Erste Kenntnisse über die Flora der Mongolei stammen aus dem 18. Jh. und der ersten Hälfte des 19. Jh. (MESSERSCHMIDT, BUNGE, MAXIMOVICZ). In der zweiten Hälfte und am Ende des 19. Jh. erbrachten vor allem die Expeditionen der Russischen Geographischen Gesellschaft umfangreiches botanisches Material (POTANIN, KOZLOV). Auch andere Forscher führten ausgedehnte Sammelreisen durcn (KLEMENZ, PALIBIN, SAPOZNIKOV). Nach der mongolischen Revolution von 1921 wurden von sowjetischer Seite bereits in den 20er Jahren Sammelreisen durchgeführt. 1925 wurde die Mongolische Kommission der Akademie der Wissenschaften der UdSSR geschaffen, die weitere Expeditionen …


Die Gemeinsame Botanische Expedition Des Instituts Für Biochemie Der Pflanzen In Halle Und Des Instituts Für Volksmedizin In Ulan-Bator Durch Die Mongolische Volksrepublik 1983, Siegfried Huneck, Werner Hilbig Jan 1988

Die Gemeinsame Botanische Expedition Des Instituts Für Biochemie Der Pflanzen In Halle Und Des Instituts Für Volksmedizin In Ulan-Bator Durch Die Mongolische Volksrepublik 1983, Siegfried Huneck, Werner Hilbig

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

Einleitung

Im Rahmen des Abkommens über wissenschaftliche Zusammenarbeit der Akademie der Wissenschaften der DDR und des Ministeriums für Volksgesundheit der Mongolischen Volksrepublik (MVR) führten das Institut für Biochemie der Pflanzen (IBP) in Halle/Saale und das Institut für Volksmedizin (IVM) in Ulan-Bator vom 15. Juni bis 17. August 1983 die zweite gemeinsame Expedition in die MVR durch. An dieser Expedition nahmen teil: Dr. habil. S. HUNECK (IBP, Leiter der Expedition), Dr. W. HILBIG (Mattin-Luther-Universität Halle, Wissenschaftsbereich Geobotanik und Botanischer Garten, Halle/Saale), Dr. T. KHAIDA V (Direktor des IVM) und Dr. U. COGT (Institut für Botanik der Akademie der Wissenschaften in Ulan-Bator). …


Verlauf Und Wissenschaftliche Ergebnisse Der Expedition In Die Mongolische Volksrepublik 1978, Siegfried Huneck, Hans Dieter Knapp Jan 1988

Verlauf Und Wissenschaftliche Ergebnisse Der Expedition In Die Mongolische Volksrepublik 1978, Siegfried Huneck, Hans Dieter Knapp

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

Einleitung

Auf Grund eines Abkommens über wissenschaftliche Zusammenarbeit der Akademie der Wissenschaftel'l der Mongolischen Volksrepublik und der Akademie der Wissenschaften der Deutschen Demokratischen Republik führten das Institut für Naturstoffe (IN) in Ulan-Bator und das Institut für Biochemie der Pflanzen (IBP) in Halle/Saale vom 13. Juni bis 29. Juli 1978 eine gemeinsame Expedition in die MVR durch. An dieser Expedition nahmen von Seiten der AdW der DDR Dr. habil. S. HUNECK (Leiter der Expedition), Dr. habil. H. RIPPERGER (beide IBP) und Dr. H. D. KNAPP (damals Müritz-Museum, Waren) und von Seiten der AdW Dr. BASANSUREN (IN) und zeitweilig Dr. U. COGT …


Mikroklima-Untersuchungen In Pflanzengesellschaften Verschiedener Höhenstufen In Hochgebirgen Der Nordwest- Und Südmongolei, Werner Hilbig, K. Helmecke, Z. Schamsran, D. Bumzaa Jan 1988

Mikroklima-Untersuchungen In Pflanzengesellschaften Verschiedener Höhenstufen In Hochgebirgen Der Nordwest- Und Südmongolei, Werner Hilbig, K. Helmecke, Z. Schamsran, D. Bumzaa

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

Im Rahmen der Mongolisch-Deutschen Biologischen Expeditionen wurden erste Mikroklimauntersuchungen im Jahre 1973 in ausgewählten Pflanzengesellschaften der Wüste und Halbwüste im $üdgobi-Aimak durchgeführt (HELMECKE u. SCHAMSRAN 1979). Auch von sowjetisfber (BERESNEVA 1974, 1981) und von polnischer Seite (vgl. KLIMEK 1980) liegen mikroklimatologische Untersuchungen für verschiedene Gebiete der MVR vor. Von den Gebirgen der MVR wurde besonders der Südteil des Changai berücksichtigt. Hier wurden Mikroklimamessungen in verschiedenen Höhenstufen durchgeführtl (BRZEZNIAK u. NIEDZWIEDZ 1980). Die von Biologen der Universitäten Halle-Wittenberg und Ulan-Bator von 1977 bis 1979 durchgeführten Untersuchungen in Hochebirgen der MVR (Charchiraa, Uvs Aimak; Ich-Bogd, Bajanchongor Aimak) schlosseh neben den floristisch-vegetationskundlichen und …


Title Page, Verso Of The Title Page, And Table Of Contents For Erforschung Biologischer Ressourcen Der Mongolischen Volksrepublik, Band 7 (1988), Michael Stubbe Jan 1988

Title Page, Verso Of The Title Page, And Table Of Contents For Erforschung Biologischer Ressourcen Der Mongolischen Volksrepublik, Band 7 (1988), Michael Stubbe

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

Title page, verso of the title page, and table of contents for Erforschung biologischer Ressourcen der Mongolischen Volksrepublik, Band 7 (1988)


Bibliographie Pflanzen Soziologischer Arbeiten Über Die Mongolische Volksrepublik. Folge 2, Werner Hilbig Jan 1988

Bibliographie Pflanzen Soziologischer Arbeiten Über Die Mongolische Volksrepublik. Folge 2, Werner Hilbig

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

Zusammenfassung

Der vorliegende Teil 2 einer Bibliographie pflanzensoziologischer und vegetationsökologischer Arbeiten über das Gebiet der Mongolischen Volksrepublik (MVR) enthält im wesentlichen Arbeiten aus den Jahren 1980-1985. Es werden 201 Arbeiten zitiert.

Summary

The second part of the bibliography of geobotanical and synecological publications about the territory of the Mongolian People's Republic contains publications mainly from 1980 till 1985. 201 papers are quoted.


Limnological Monitoring Data For Lake Mead During 1987: Technical Report No. 20, Larry J. Paulson Jan 1988

Limnological Monitoring Data For Lake Mead During 1987: Technical Report No. 20, Larry J. Paulson

Publications (WR)

Limnological monitoring was conducted in Las Vegas Bay and Boulder Basin from April to December of 1987. The purpose of the monitoring was to (i) document possible changes in water quality resulting from decreased phosphorus loading in Las Vegas Wash, and (ii) establish a data base for evaluating the adequacy of water quality standards.


Fish Aid: The Lake Mead Fertilization Project, Richard Axler, Larry Paulson, Peter Vaux, Patrick Sollberger, Donald H. Baepler Jan 1988

Fish Aid: The Lake Mead Fertilization Project, Richard Axler, Larry Paulson, Peter Vaux, Patrick Sollberger, Donald H. Baepler

Publications (WR)

Sport fishing at Lake Mead in Nevada and Arizona is a resource valued at nearly $100 million per year to southern Nevada. During the past two decades, salmonids, mostly trout, have disappeared entirely, the largemouth bass catch has drastically declined despite greater fishing pressure, and the condition factors for striped bass have steadily deteriorated. It appears that a major reduction in phosphorus loading caused by the upstream impoundment of the Colorado River to form Lake Powell in 1963 and advanced wastewater treatment removal of phosphorus from domestic wastewater inflows in 1981 are the principal factors responsible for decreased production at …


Changes In The Morphometry Of Las Vegas Wash And The Impact On Water Quality, Richard A. Roline, James J. Sartoris, U.S. Bureau Of Reclamation Jan 1988

Changes In The Morphometry Of Las Vegas Wash And The Impact On Water Quality, Richard A. Roline, James J. Sartoris, U.S. Bureau Of Reclamation

Publications (WR)

Las Vegas Wash, a natural wash east of Las Vegas, Nevada, carries stormwater, groundwater drainage, and sewage effluent from two sewage treatment plants to Lake Mead. Over 80 percent of the normal discharge of approximately 3.4 m3/s (120 ft3/s) consists of effluent from the City of Las Vegas and Clark County sewage treatment plants. Beginning in the 1950s, a large wetland area developed along the wash that supported waterfowl populations and contributed to some water quality transformations. Heavy rains and subsequent flooding in the area in 1983 and 1984 resulted in erosion and channelization that greatly …


The Prairie Naturalist Volume 19, No. 4. December 1987 Dec 1987

The Prairie Naturalist Volume 19, No. 4. December 1987

The Prairie Naturalist

Paul B. Kannowski, Editor

Nikki R. Seabloom, Assistant Editor

Douglas H. Johnson, Book Review Editor

TABLE OF CONTENTS

BREEDING BIRDS AND VEGETATION STRUCTURE IN WESTERN NORTH DAKOTA WOODED DRAWS ▪ C. A. Faanes

PRODUCTIVITY OF RED-WINGED BLACKBIRDS IN SOUTH DAKOTA ▪ J. F. Besser, O. E. Bray, J. W. De Grazio, J. L. Guarino, D. L. Gilbert, R. R. Martinka, and D. A. Bysart

DENSITY AND DISTRIBUTION OF THE MOUNTAIN PLOVER ON THE CHARLES M. RUSSELL NATIONAL WILDLIFE REFUGE ▪ S. L. Olson-Edge and W. D. Edge

EFFECT OF CALCULATION TECHNIQUE ON THE ESTIMATION OF LEAF AREA IN A MIXED …


Lake Mead Prefertilization Study: Preliminary Nutrient Enhancement Studies In Lake Mead, Richard P. Axler, Larry J. Paulson, Patrick J. Sollberger, Donald H. Baepler, U.S. Bureau Of Reclamation Nov 1987

Lake Mead Prefertilization Study: Preliminary Nutrient Enhancement Studies In Lake Mead, Richard P. Axler, Larry J. Paulson, Patrick J. Sollberger, Donald H. Baepler, U.S. Bureau Of Reclamation

Publications (WR)

Studies conducted by the University of Nevada-Las Vegas (UNLV), the Nevada Department of Wildlife (NDOW), the Arizona Game and Fish Department (AGFD), The Nevada Division of Environmental Protection (NDEP), and the United States Bureau of Reclamation (USBR) have identified decreased algal production as a major factor involved in the decline of the Lake Mead sport fishery. Phosphorus-laden silt particles in the Colorado River have been sedimenting out in Lake Powell since the completion of Glen Canyon Dam 286 miles upstream in 1963. This sharp decrease in phosphorus loading to Lake Mead (>5000 tons per year) has resulted in decreased …


Thermal Tolerances And Preferences Of Fishes Of The Virgin River System (Utah, Arizona, Nevada), James E. Deacon, Paul B. Schumann, Edward L. Stuenkel Oct 1987

Thermal Tolerances And Preferences Of Fishes Of The Virgin River System (Utah, Arizona, Nevada), James E. Deacon, Paul B. Schumann, Edward L. Stuenkel

Publications (WR)

Critical thermal maxima (CTM) and thermal preferenda of the common fishes of the Virgin River were examined. Differences in final temperature preferenda and CTM for species with low thermal lability (speckled dace, spinedace, roundtail chub) correspond well with differences in their distribution and abundance in the river. These species shifted their acute thermal preferences relatively little as acclimation temperature increased. For thermally labile species (woundfin, red shiner, desert sucker, and fiannehnouth sucker), the final preferendum is a less precise indicator of probable distribution. The woundfin, an endangered fish, has a high CTM (39.5 C at 25 C acclimation) and a …


Benthic Invertebrates And Crayfish Of Lake Mead, Susan K. Peck, William L. Pratt, James E. Pollard, Larry J. Paulson, Donald H. Baepler Sep 1987

Benthic Invertebrates And Crayfish Of Lake Mead, Susan K. Peck, William L. Pratt, James E. Pollard, Larry J. Paulson, Donald H. Baepler

Publications (WR)

The objectives of this study were to:

1. Establish baseline densities of benthic invertebrates and relative abundance of crayfish in Lake Mead.

2. Evaluate the distributions of benthic organisms and crayfish in relation to existing habitat conditions and 1imnological characteristics of Lake Mead.

3. Measure seasonal changes in abundances of benthic organisms and crayfish in Lake Mead.

4. Compare observations of Procambarus clarkii life history in Lake Mead to reports from other aquatic systems.

5. Evaluate the importance of benthic organisms and crayfish as food sources for game fish in Lake Mead.


The Prairie Naturalist Volume 19, No. 3. September 1987 Sep 1987

The Prairie Naturalist Volume 19, No. 3. September 1987

The Prairie Naturalist

Paul B. Kannowski, Editor

Nikki R. Seabloom, Assistant Editor

Douglas H. Johnson, Book Review Editor

TABLE OF CONTENTS

DISTRIBUTION AND POPULATION TREND OF WESTERN MEADOWLARKS IN ILLINOIS ▪ R. D. Applegate and A. G. Willms

EFFECT OF DISRUPTIVE BACKGROUND ON PREDATION OF ARTIFICIAL NESTS BY AMERICAN CROWS ▪ L. G. Sugden

AVIAN HABITAT OCCUPANCY FOLLOWING FIRE IN A MONTANA SHRUB STEPPE ▪ C. E. Bock and J. H. Bock

ACTIVITY OF A WILD BLACK-FOOTED FERRET LITTER ▪ R. Paunovich and S. C. Forrest

EGG-DIAMETER DEVELOPMENT OF GIZZARD SHAD COLLECTED FROM A GREAT PLAINS RESERVOIR ▪ C. A. Cox and D. …


The Prairie Naturalist Volume 19, No.2. June 1987 Jun 1987

The Prairie Naturalist Volume 19, No.2. June 1987

The Prairie Naturalist

Paul B. Kannowski, Editor

Nikki R. Seabloom, Assistant Editor

Douglas H. Johnson, Book Review Editor

TABLE OF CONTENTS

WESTERN SNOWBERRY COMMUNITY STRUCTURE IN SOUTH CENTRAL NORTH DAKOTA ▪ D. R. Kirby and T. A. Ransom-Nelson

LIFE-FORMS AND GEOGRAPHIC AFFINITIES OF THE SOUTHEASTERN NORTH DAKOTA FLORA ▪ G. J. Seiler and W. T. Barker

THE EFFECT OF BURNING AND INSECT HERBIVORY ON SEED PRODUCTION OF TWO PRAIRIE FORBS ▪ M. A. Davis, K. M. Lemon, and A. M. Dybvig

CANVASBACK NESTING ON MAN-MADE ISLANDS IN MONTANA ▪ D. M. Prellwitz

CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA - 1986 ▪ R. N. …


Disturbed Alpine Ecosystems: Seedling Establishment Of Early And Late Seral Dominant Species, Jeanne C. Chambers May 1987

Disturbed Alpine Ecosystems: Seedling Establishment Of Early And Late Seral Dominant Species, Jeanne C. Chambers

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study examined the effects of seedbed and seedling environment on establishment of early and late seral dominant alpine species. Species studied included late seral dominant forbs (Geum rossii, Artemisia scopulorum, and Polemonium viscosum), early seral dominant forbs (Potentilla diversifolia and Sibbaldia procumbens), a late seral dominant grass (Festuca idahoensis), and early seral dominant grasses (Calamagrostis purpurascens and Deschampsia cespitosa). Germination responses of each species to wet vs. dry cold stratification and light vs. dark conditions were investigated. No statistical differences were observed in the seed germination of early and late …


Las Vegas Wash And Lake Mead Proposed Water Quality Standards: Revisions And Rationale, State Of Nevada: Division Of Environmental Protection May 1987

Las Vegas Wash And Lake Mead Proposed Water Quality Standards: Revisions And Rationale, State Of Nevada: Division Of Environmental Protection

Publications (WR)

Rationale of review and for proposed changes to the Nevada Pollution Control Regulations (NAC 445.1354, 445.1355, 445.1356, 455.1367, 445.1352, 445.1353, 445.1350, 445.1351) before the State Environmental Commission on June 23 and 24, 1987.


Comparison Of Littoral And Limnetic Zooplankton Communities Of Lake Mead, Patrick Joseph Sollberger May 1987

Comparison Of Littoral And Limnetic Zooplankton Communities Of Lake Mead, Patrick Joseph Sollberger

Publications (WR)

Microfaunal communities were studied in littoral (inshore) and limnetic (offshore) areas of the lower basin in Lake Mead to compare species composition and abundance between the two zones. Planktonic forms (zooplankton) dominated inshore and offshore habitats and the occurrence of littoral species was low. Therefore, high similarity in zooplankton species composition was found among all sampling stations. This was perhaps due to two main factors: (i) the physical and chemical environment among the stations were very similar and (ii) the lack of aquatic vegetation in the littoral zone reduced the occurrence of littoral species.

Although species composition did not vary …


The Prairie Naturalist Volume 19, No. 1 March 1987 Mar 1987

The Prairie Naturalist Volume 19, No. 1 March 1987

The Prairie Naturalist

Paul B. Kannowski, Editor

Nikki R. Seabloom, Assistant Editor

Douglas H. Johnson, Book Review Editor

TABLE OF CONTENTS

ECOLOGY OF WHITE-TAILED DEER IN UPLAND PONDEROSA PINE HABITAT IN SOUTHEASTERN MONTANA ▪ G. L. Dusek

PRECISION AND BIAS OF A SUMMER AERIAL TRANSECT CENSUS OF PRONGHORN ANTELOPE ▪ S. H. Allen and J. M. Samuelson

ACTIVITY PATTERNS, MOVEMENTS, AND HOME RANGES OF PRAIRIE MINK ▪ T. W. Arnold and E. K. Fritzell

BRYOPHYTES OF THE SOUTH UNIT OF THEODORE ROOSEVELT NATIONAL PARK, NORTH DAKOTA ▪ C. L. Blaney and D. H. Norris

FALL FOOD HABITS OF WILD TURKEYS IN SOUTH CENTRAL …


Maine Acid Rain Study : Reports, Maine Department Of Environmental Protection Feb 1987

Maine Acid Rain Study : Reports, Maine Department Of Environmental Protection

Maine Collection

Maine Acid Rain Study : Reports

Maine Department of Environmental Protection, Augusta, Maine (February, 1987).

Contents: Acid Rain Precursor Inventory and Evaluation / Modeled Sulfur Deposition in Maine / High Elevation Lake Monitoring in Maine


An Inventory And Condition Survey Of Rangelands In The Carnarvon Basin, Western Australia, A L. Payne, G F. Spencer, P J. Curry Jan 1987

An Inventory And Condition Survey Of Rangelands In The Carnarvon Basin, Western Australia, A L. Payne, G F. Spencer, P J. Curry

Technical Bulletins

The inventory and condition survey of rangelands in the Carnarvon Basin, undertaken by the Department of Agriculture and Food, Western Australia (DAFWA) between 1980 and 1982, describes and maps the natural resources of the region’s pastoral leasehold land. This survey report provides a baseline record of the existence and condition of the natural area’s resources, to assist with the planning and implementation of land management practices. The report identified and described the condition of soils, landforms, vegetation, habitat, ecosystems, and declared plants and animals. It also assessed the impact of pastoralism and made land management recommendations. The area surveyed covers …


Management Measures For The Shark Bay Snapper Fishery 1987 Season., P. Millington Nov 1986

Management Measures For The Shark Bay Snapper Fishery 1987 Season., P. Millington

Fisheries Management Papers

The 1986 Shark Bay snapper fishing season mirrored in almost all respects the situation which will apply when the limited entry regime is put into effect. It was thus an opportunity to assess how effective the measures recommended in the Report of the Shark Bay Snapper Fishery Working Group were in reducing effort in the fishery.


The Esperance Rock Lobster Working Group Interim Report By The Chairman Mr. A. Pallot To The Western Australia Fishing Industry., A. Pallot Nov 1986

The Esperance Rock Lobster Working Group Interim Report By The Chairman Mr. A. Pallot To The Western Australia Fishing Industry., A. Pallot

Fisheries Management Papers

In July 1985 the Minister for Fisheries released a discussion paper titled "Arrangements for entry to all fisheries off and along the Western Australian coast" for consideration by all members of the fishing industry. The Australian Fishing Industry Council (W.A. Branch), now the Western Australian Fishing Industry Council (Inc), responded to the discussion paper in March 1986. The following were included in the Council's recommendations: 1. The rock lobster fishery near Esperance be a limited entry fishery. 2. The bench mark date for determining access by April 30, 1985. 3. that the Minister for fisheries establish a representative Government/Industry Working …


The Report Of The Fish Farming Legislative Review Committee., P. Rogers Oct 1986

The Report Of The Fish Farming Legislative Review Committee., P. Rogers

Fisheries Management Papers

In 1975, amendments to the Fisheries Act provided for the licensing and control of commercial fish farming activities and , for specific declared species, further controls on their processing and marketing. To date, marron has been the only species to be declared a "farm fish". During the last decade, much of the State's aquaculture impetus has focused on marron although more recently greater attention has been directed towards trout, yabbies and freshwater aquarium fish species. On November 19, 1984, the Marron Growers Association of Western Australia (Inc) wrote to the Minister for Fisheries and Wildlife, seeding a general review of …


The Prairie Naturalist Volume 18, No. 2. June 1986 Jun 1986

The Prairie Naturalist Volume 18, No. 2. June 1986

The Prairie Naturalist

Paul B. Kannowski, Editor

Nikki R. Seabloom, Assistant Editor

Douglas H. Johnson, Book Review Editor

TABLE OF CONTENTS

WINTER ECOLOGY OF BALD EAGLES IN SOUTHCENTRAL NEBRASKA ▪ G. R. Lingle and G. L. Krapu

NATURAL HISTORY OF THE PLAINS POCKET MOUSE IN AGRICULTURALLY DISTURBED SANDSAGE PRAIRIE ▪ K. M. Reed and J. R. Choate

COMMERCIAL SUNFLOWERS: FOOD FOR RED FOXES IN NORTH DAKOTA ▪ A. B. Sargeant, S. H. Allen, and J. P. Fleskes

CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA - 1985 ▪ R. N. Randall

NEST SITES OF DUCKS IN GRAZED MIXED-GRASS PRAIRIE IN NORTH DAKOTA ▪ H. F. …


The Report Of The Southern Western Australian Shark Working Group., P. Millington Apr 1986

The Report Of The Southern Western Australian Shark Working Group., P. Millington

Fisheries Management Papers

The southern Western Australian Shark Working Group was formed to investigate the southern shark fishery and advise the Minister for Fisheries on options for future management. Membership comprised six fishermen from regional professional fishermen's associations and two Fisheries Department officers. The Working Group considered that each shark fisherman obtaining an entitlement should then be restricted in the length of fishing gear he can use and the number of months he can fish. The individual's time and gear entitlement would be approximately that length of gear being used and time spent fishing in a period shortly before the bench mark date. …


Disease Incidence Of Demersal Finfishes From The Southern And Western Branches Of The Elizabeth River, Virginia, Randal D. Owen Apr 1986

Disease Incidence Of Demersal Finfishes From The Southern And Western Branches Of The Elizabeth River, Virginia, Randal D. Owen

Biological Sciences Theses & Dissertations

Fishes from the industrialized environs of the Elizabeth River, Virginia were surveyed for external evidence of disease during June through October 1984. A highly significant (p < 0.001) incidence of disease was found in demersal fishes collected by otter trawl from a site in the industrially contaminated Southern Branch compared to a less contaminated Western Branch site. Cataracts, fin erosion and dermal lesions were the most commonly occurring anomalies in the Southern Branch finfish.

Static, solid-phase toxicity tests employing sediment collected from the Southern Branch site resulted in an immediate toxic stress in the spot, Leiostomus xanthurus, which resulted in 100% mortality within 24 hours, compared with no mortalities in control systems. Spot exposed to control, i.e., pollution free, and diluted Southern Branch sediments innoculated with the pathogenic bacterial species, Vibrio anguillarium, developed significant (p ≤ 0.020) cases of fin erosion at a mean total bacterial community density …


The Prairie Naturalist Volume 18, No. 3 September 1986 Mar 1986

The Prairie Naturalist Volume 18, No. 3 September 1986

The Prairie Naturalist

Paul B. Kannowski, Editor

Nikki R. Seabloom, Assistant Editor

Douglas H. Johnson, Book Review Editor

TABLE OF CONTENTS

HABITAT SELECTION AND MOVEMENT PATTERNS IN SANDHILLS RODENTS ▪ C. A. Lemen and P. W. Freeman

THE HERPETOFAUNA OF THE WEAVER DUNES, WABASHA COUNTY, MINNESOTA ▪ P. A. Cochran

MULTIPLE EGG CLUTCH PRODUCTION IN THE GREAT PLAINS TOAD ▪ J. J. Krupa

MAMMALS OF THE KONZA PRAIRIE RESEARCH NATURAL AREA, KANSAS ▪ E. J. Finck, D. W. Kaufman, G. A. Kaufman, S. K. Gurtz, B. K. Clark, L. J. McLellan, and B. S. Clark

AQUATIC INVERTEBRATES IN LEVEL DITCHES AND ADJACENT EMERGENT …


The Prairie Naturalist Volume 18, No. 1. March 1986 Mar 1986

The Prairie Naturalist Volume 18, No. 1. March 1986

The Prairie Naturalist

Paul B. Kannowski, Editor

Nikki R. Seabloom, Assistant Editor

Douglas H. Johnson, Book Review Editor

TABLE OF CONTENTS

INVASION PATTERN MAPPING OF NON-SEEDED SPECIES ON A SHALLOWLY DISTURBED SEEDED SITE ▪ C. E. Grygiel, C. D. Bonham, and E. F. Redente

CHANGES IN THE LICHEN FLORA OF PIPESTONE NATIONAL MONUMENT, MINNESOTA ▪ G. D. Willson and T. W. Vinyard

INTERPOPULATION VARIABILITY IN MOUTHPARTS IN Scaphiopus bombifrons IN NEBRASKA (AMPHIBIA: PELOBATIDAE) ▪ T. L. Potthoff and J. D. Lynch

PLANTS AND INVERTEBRATES IN A PRAIRIE WETLAND DURING DUCK BROOD-REARING J. W. McCrady, W. A. Wentz, and R. L. Linder

OCCURRENCE OF …


The Prairie Naturalist Volume 17, No. 4. December 1985 Dec 1985

The Prairie Naturalist Volume 17, No. 4. December 1985

The Prairie Naturalist

Paul B. Kannowski, Editor

Nikki R. Seabloom, Assistant Editor

Douglas H. Johnson, Book Review Editor

TABLE OF CONTENTS

MOVEMENTS AND HABITAT USE OF MALE RUFFED GROUSE IN THE TURTLE MOUNTAINS, NORTH DAKOTA ▪ E. L. Bakke and J. W. Schulz

THE BIRDS OF KONZA PRAIRIE RESEARCH NATURAL AREA, KANSAS ▪ J. L. Zimmerman

VASCULAR FLORA OF RANSOM, RICHLAND, AND SARGENT COUNTIES, NORTH DAKOTA ▪ G. J. Seder and W. T. Barker

NORTH DAKOTA FLEAS. IX. SIPHONAPTERANS OF MAMMALS IN SOUTHWESTERN NORTH DAKOTA ▪ O. R. Larson, M. G. McKenna, and N. R. Fellows

NOTES

Breakup and Sibling Dispersal of Two …