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Articles 2131 - 2160 of 2464
Full-Text Articles in Ecology and Evolutionary Biology
New And Corrected Records Of The Flora Of Nebraska, Steven B. Rolfsmeier, Robert B. Kaul, David M. Sutherland
New And Corrected Records Of The Flora Of Nebraska, Steven B. Rolfsmeier, Robert B. Kaul, David M. Sutherland
Transactions of the Nebraska Academy of Sciences and Affiliated Societies
New distributional data are provided for 27 species of vascular plants in Nebraska, eight newly recorded as growing wild in the State. The record of one species previously attributed to the State is shown to be based upon misidentified specimens, the range of another is shown to be much more restricted in Nebraska than previously reported, and nomenclature is corrected for two species.
The Prairie Naturalist Volume 18, No. 2. June 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. …
Organic Matter Budgets And Models For Four Plant Communities In The Great Dismal Swamp, J. Patrick Megonigal
Organic Matter Budgets And Models For Four Plant Communities In The Great Dismal Swamp, J. Patrick Megonigal
Biological Sciences Theses & Dissertations
Budgets and models of organic matter dynamics were developed for one mesic and three seasonally flooded plant communities in the Dismal Swamp. Components included aboveground parts, belowground parts, litter and soil organic matter (SOM).
Net primary- production was significantly greater on them flooded sites. Comparisons show that the Dismal Swamp is highly productive despite relatively low nutrient inputs.
Budget calculations showed that over 65% of the total input to SOM comes from roots. Leaves contributed about 70% of the aboveground inputs.
The model predicted that species composition, aboveground biomass and turnover rates on the cedar site will become quite similar …
The Prairie Naturalist Volume 18, No. 3 September 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
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 …
Relationships Among Aspen, Fungi, And Ungulate Browsing In Colorado And Wyoming, John H. Hart
Relationships Among Aspen, Fungi, And Ungulate Browsing In Colorado And Wyoming, John H. Hart
Aspen Bibliography
No abstract provided.
Nebraska Plant Distribution, David M. Sutherland, Robert B. Kaul
Nebraska Plant Distribution, David M. Sutherland, Robert B. Kaul
Transactions of the Nebraska Academy of Sciences and Affiliated Societies
Distribution notes based on recent collections and herbarium work are provided for 46 Nebraska plant taxa, including 43 flowering plants, two ferns, and one liverwort. The list includes several plants that are new to the State and provides range extensions within the State for many others. Several previously published distribution records believed to be erroneous are also discussed.
The Prairie Naturalist Volume 17, No. 4. December 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 …
The Prairie Naturalist Volume 17, No. 3. September 1985
The Prairie Naturalist Volume 17, No. 3. September 1985
The Prairie Naturalist
Paul B. Kannowski, Editor
Nikki R. Seabloom, Assistant Editor
Douglas H. Johnson, Book Review Editor
TABLE OF CONTENTS
EFFECTS OF FIRE ON NUTRIENT AND ENERGY CONCENTRATION OF FIVE PRAIRIE GRASS SPECIES ▪ K. M. Ohr and T. B. Bragg
FOOD HABITS OF JUVENILE GIZZARD SHAD IN OPEN-WATER AND NEAR-SHORE HABITATS OF MELVERN RESERVOIR, KANSAS ▪ B. L. Todd and D. W. Willis
CHANGES IN BREEDING BLACKBIRD NUMBERS IN NORTH DAKOTA FROM 1967 TO 1981–82 ▪ J. F. Besser
RARE ANIMALS AND PLANTS OF SOUTH DAKOTA ▪ W. C. Houtcooper, D. J. Ode, J. A. Pearson, and G. M. Vandel III …
The Prairie Naturalist Volume 17, No. 2. June 1985
The Prairie Naturalist Volume 17, No. 2. June 1985
The Prairie Naturalist
Paul B. Kannowski, Editor
Nikki R. Seabloom, Assistant Editor
Douglas H. Johnson, Book Review Editor
TABLE OF CONTENTS
A CHECKLIST OF TEXAS ANTS ▪ G. C. Wheeler and J. Wheeler
HABITAT SELECTION BY SMALL MAMMALS OF THE TALL-GRASS PRAIRIE: EXPERIMENTAL PATCH CHOICE ▪ S. K. Peterson, G. A. Kaufman, and D. W. Kaufman
CORN CONSUMPTION BY WINTERING MALLARDS DURING MORNING FIELD-FLIGHTS ▪ R. J. Whyte and E. G. Bolen
CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA - 1984 ▪ R. N. Randall
MOUNTAIN PLOVER FOOD ITEMS ON AND ADJACENT TO A PRAIRIE DOG TOWN ▪ S. L. Olson
ECOLOGICAL DISTURBANCE IN …
The Prairie Naturalist Volume 17, No. 1. March 1985
The Prairie Naturalist Volume 17, No. 1. March 1985
The Prairie Naturalist
Paul B. Kannowski, Editor
Nikki R. Seabloom, Assistant Editor
Douglas H. Johnson, Book Review Editor
TABLE OF CONTENTS
COMMUNITY ANALYSIS OF THE FOREST VEGETATION IN THE LOWER PLATTE RIVER VALLEY, EASTERN NEBRASKA ▪ S. J. Rothenberger
RECOLONIZATION OF A BURNED PRAIRIE BY MEADOW VOLES (Microtus pennsylvanicus) ▪ P. L. Vacanti and K. N. Geluso
AMERICAN COOT HABITAT IN NORTH DAKOTA ▪ H. A. Kantrud
OBSERVATIONS ON PRAIRIE DOG DISPERSAL IN MONTANA ▪ C. J. Knowles
WINTER FOOD HABITS OF THE SWIFT FOX ON THE CENTRAL HIGH PLAINS ▪ D. M. Zumbaugh and J. R. Choate
BOOK REVIEW
Ground …
Public Response To "Guidelines For Managing Aspen", Norbert V. Debyle
Public Response To "Guidelines For Managing Aspen", Norbert V. Debyle
Aspen Bibliography
No abstract provided.
Guidelines For Managing Aspen, The Aspen Panel
Guidelines For Managing Aspen, The Aspen Panel
Aspen Bibliography
No abstract provided.
Aspen Community Types Of Nevada, W. F. Mueggler
Aspen Community Types Of Nevada, W. F. Mueggler
Aspen Bibliography
No abstract provided.
Effects Of Litter On Aquatic Macrophyte Germination And Growth, Mark F. Carter, Forrest E. Lane, James B. Grace
Effects Of Litter On Aquatic Macrophyte Germination And Growth, Mark F. Carter, Forrest E. Lane, James B. Grace
Journal of the Arkansas Academy of Science
In Arkansas, during seasonal drought periods, lake water levels drop leaving exposed mudflats which are primary sites for seedling establishment. Commonly, these exposed mudflats are partially covered with decomposing litter from previous stands of aquatic plants. In this study, aqueous leachates from the litter of four macrophytes, Eleocharis quadrangulata, Justicia americana, Polygonum lapathifolium, and Potamogeton nodosus, were used to test for chemical interference with germination and seedling growth. Only Justicia americana leachate was found to affect the growth of several of the test species. The potential for chemical interference by Justicia litter was evaluated further using extracts of acidified leachate. …
Vegetation Patterns In Relation To Topography And Edaphic Variation Nebraska Sandhills Prairie, P. W. Barnes, A. T. Harrison, S. P. Heinisch
Vegetation Patterns In Relation To Topography And Edaphic Variation Nebraska Sandhills Prairie, P. W. Barnes, A. T. Harrison, S. P. Heinisch
School of Biological Sciences: Faculty Publications
Detailed studies on soil texture and moisture retention indicate a close association between edaphic features and the distribution and composition of plant communities along topographic gradients at Arapaho Prairie, a typical, semi-arid Nebraska Sandhills prairie. The vegetation characteristics of three major habitat types (ridge, slope, and valley) and several minor subtypes (swale, stable ridge, and eroding ridge) are recognized and quantitatively described. Texture analysis indicates that the soils of dune slopes and ridges are largely azonal and are very coarse with substantially lower fine fractions (silt-clay ~ 13-15%) than soils of the more lowland swale and valley sites where surfact …
The Prairie Naturalist Volume 16, No. 4. December 1984
The Prairie Naturalist Volume 16, No. 4. December 1984
The Prairie Naturalist
Paul B. Kannowski, Editor
Nikki R. Seabloom, Assistant Editor
Douglas H. Johnson, Book Review Editor
TABLE OF CONTENTS
VEGETATION PATTERNS IN RELATION TO TOPOGRAPHY AND EDAPHIC VARIATIONS IN NEBRASKA SAND HILLS PRAIRIE ▪ P. W. Barnes, A. T. Harrison and S. P. Heinisch
GREAT BLUE HERON NESTING BIOLOGY ON THE JAMES RIVER IN SOUTH DAKOTA ▪ E. M. Dowd and L. D. Flake
OVENBIRDS AT THE PERIPHERY OF THEIR RANGE IN WESTERN NORTH DAKOTA ▪ R. B. Hopkins
BREEDING BIRD COMMUNITY COLONIZATION OF SOWN STANDS OF NATIVE GRASSES IN NORTH DAKOTA ▪ K. F. Higgins, T. W. Arnold and R. …
Benthic Diatom Community Dynamics In The Colorado River: Interactive Effects Of Periodic Dessication And Current Regime, Christopher Gerard Peterson
Benthic Diatom Community Dynamics In The Colorado River: Interactive Effects Of Periodic Dessication And Current Regime, Christopher Gerard Peterson
Publications (WR)
The response to periodic desiccation of periphyton communities developed in eddy environments or in areas exposed to variable, direct current was examined. Algal communities were incubated on clay tiles for between 2 and 12 weeks in the Colorado River, directly below Hoover Dam from October, 1983 - January, 1984. Mean daily discharge from the dam decreased over this period. To assess the influence of these discharge changes on community dynamics, samples collected over the first 12 weeks of the investigation were compared to samples of the same age collected over the final 8 weeks.
The small diatom taxon Achnahthes spp …
The Prairie Naturalist Volume 16, No. 3. September 1984
The Prairie Naturalist Volume 16, No. 3. September 1984
The Prairie Naturalist
Paul B. Kannowski, Editor
Nikki R. Seabloom, Assistant Editor
Douglas H. Johnson, Book Review Editor
TABLE OF CONTENTS
GRASSLAND HABITAT MANAGEMENT USING PRESCRIBED BURNING IN WIND CAVE NATIONAL PARK, SOUTH DAKOTA ▪ J. D. Forde, N. F. Sloan and D. A. Shown
BODY TEMPERATURES AND BEHAVIORAL ACTIVITIES OF HIBERNATING
PRAIRIE RATTLESNAKES, Crotalus viridis, IN ARTIFICIAL DENS ▪ K. R. Marion and O. J. Sexton
NEW VASCULAR PLANT RECORDS FOR NORTH DAKOTA ▪ D. T. Disrud, W. T. Barker and R. H. Warner
CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA - 1983 ▪ R. N. Randall
COMPARISON OF PLANKTON POPULATIONS IN THREE …
An Evaluation Of Naturally Occurring Populations Of Magnolia Tripetala L. In Indiana, Kemuel S. Badger
An Evaluation Of Naturally Occurring Populations Of Magnolia Tripetala L. In Indiana, Kemuel S. Badger
All-Inclusive List of Electronic Theses and Dissertations
Magnolia tripetala L. occurs in Indiana as a disjunct from the Appalachian mountains populations. Currently, the known distribution of ~· tripetala in Indiana is confined to seven sites in Crawford County. The current status of ~· tripetala and the surrounding plant community was evaluated to aid in the future study, protection and management of this species, which is endangered in Indiana. Systematic random sampling of the tree stratum was done with belt transects. The sapling and seeding strata were sampled with subplots, placed along the belt transects. Permanent plots were established to enable future monitoring of what is currently prime …
The Prairie Naturalist Volume 16, No. 2. June 1984
The Prairie Naturalist Volume 16, No. 2. June 1984
The Prairie Naturalist
Paul B. Kannowski, Editor
Nikki R. Sea bloom , Assistant Editor
Douglas H. Johnson, Book Review Editor
TABLE OF CONTENTS
AUTUMN WEIGHTS OF PLAINS SHARP-TAILED GROUSE IN MONTANA ▪ J. E. Swenson and R. L. Eng
VEGETATION PROFILE AND GRASSLAND BIRD RESPONSE TO SPRING BURNING ▪ G. E. Huber and A. A. Steuter
WETLAND PRESERVATION CONFLICTS IN NORTH DAKOTA: ECONOMIC INCENTIVES AND LANDOWNER ATTITUDES ▪ R. D. Saylor, R. A. Stromstad and M. E. Winger
COLLEMBOLA OF SOUTHWESTERN NORTH DAKOTA: SPECIES COMPOSITION AND HABITAT DISTRIBUTION ▪ B. L. Benner and P. B. Kannowski
NEW RECORDS OF EARTHWORMS FROM KANSAS (Oligochaeta: …
Growth, Yield, And Enfor, Imre Bella
Growth, Yield, And Enfor, Imre Bella
Aspen Bibliography
Increasing public awareness about the state of forestry and concerns about present and future wood supplies are bringing about an intensification of forest management across the country.
The Prairie Naturalist Volume 16, No. 1. March 1984
The Prairie Naturalist Volume 16, No. 1. March 1984
The Prairie Naturalist
Paul B. Kannowski, Editor
Nikki R. Seabloom, Assistant Editor
Douglas H. Johnson, Book Review Editor
TABLE OF CONTENTS
MORTALITY OF RACCOONS IN NORTH DAKOTA ▪ E. K. Fritzell and R. J. Greenwood
THE EFFECTS OF MOWING ON THE RODENT COMMUNITY OF A NATIVE TALL GRASS PRAIRIE IN EASTERN NEBRASKA ▪ C. A. Lemen and M. K. Clausen
PARASITES OF FISH FROM THE JAMES AND SHEYENNE RIVERS, JAMESTOWN RESERVOIR COMPLEX, AND LAKE ASHTABULA IN NORTH DAKOTA ▪ M. D. Forstie and H. L. Holloway
LEAD POISONING OF SANDHILL CRANES (Grus canadensis) ▪ R. M. Windingstad, S. M. Kerr, and …
The Effects Of Mowing On The Rodent Community Of A Native Tall Grass Prairie In Eastern Nebraska, Cliff A. Lemen, Mary K. Clausen
The Effects Of Mowing On The Rodent Community Of A Native Tall Grass Prairie In Eastern Nebraska, Cliff A. Lemen, Mary K. Clausen
University of Nebraska State Museum: Mammalogy Papers
Our results indicate that mowing, like burning, greatly reduces the use of an area by Microtus and increases the density of Peromyscus maniculatus until the grass can grow back. Depending on the rate of growth of the grass this process can take more than a year. If the prairie is mowed every year to maximize the production of hay, populations of Microtus cannot be maintained at high densities.
The study site, Nine Mile Prairie, is one of the few natural tallgrass prairies remaining in eastern Nebraska. It covers about 240 acres and is located 5 km north and 9 km …
The Secretive Silvereyes, I J. Rooke
The Secretive Silvereyes, I J. Rooke
Journal of the Department of Agriculture, Western Australia, Series 4
Durinf the past five years the agricultural Protection Board, in co-operation with scientists from CSIRO's Division of Wildlife Research and the University of Western Australia, had studied the biology and control of the silvereye in the South-West of Western Asustralia. The project was partially funded by a voluntary levy on vignerons in the Margaret River and Mt Barker areas.
The first part of the study investigated the bird's bioloogy - its food requirements, reproductive rate, how it interacted with other birds and its seasonal movements, It was hoped that this knowledge would help develop effective techniques for either controlling the …
A Closer Look At Parrots As Pests, John L. Long
A Closer Look At Parrots As Pests, John L. Long
Journal of the Department of Agriculture, Western Australia, Series 4
Small parrots have been attacking fruit and grain crops in the south of Western Australia at least since agriculture expanded into their native habitats in the early 1900s. The parrots are capable of quickly adapting to new situations so it is not surprising that they have eaten crops.
It is not known whether parrot numbers have increased since European settlement began, but this appears likely. The present landscape of islands of uncleared country interspersed with areas of agriculture appears to favour the survival of the red-capped parrot, western rosella and the Port Lincoln parrot. These species were investigated during a …
Skeleton Weed : How Serious A Threat In Western Australia?, F D. Panetta, J. Dodd
Skeleton Weed : How Serious A Threat In Western Australia?, F D. Panetta, J. Dodd
Journal of the Department of Agriculture, Western Australia, Series 4
Skeleton weed is probably the most serious weed ever to threaten the Australian wheat industry. It interferes with wheat cropping at two stages: through competition with the growing crop, particularly for nitrogen and water during the crop's development: and later through the production of a tall, wiry flowering stem which tangles in harvesting machinery and can make harvesting difficult, if not impossible.
The weed is a major problem in eastern Australia although a combination of cultural, chemical and biological control programmes is helping to reduce its impact.
In Western Australia, skeleton weed is being contained mainly by eradication efforts. Weed …
Algal Growth And The Phosphorus Cycle, Arthur J. Mccomb, K. S. Hamel, A. L. Huber, D. K. Kidby, R. J. Lukatelich
Algal Growth And The Phosphorus Cycle, Arthur J. Mccomb, K. S. Hamel, A. L. Huber, D. K. Kidby, R. J. Lukatelich
Journal of the Department of Agriculture, Western Australia, Series 4
Larger algae and microscopic phytoplankton foul the waters of the Peel-Harvey estuarine system, upsetting the fishery and polluting the beaches.
These aquatic plants grow in response to phosphorus runoff from drainage, trapping phosphorus in the estuary and using it in their growth. When they die this phosphorus remains in the system to be recycled for further plant growth.
Algal pollution in the estuary can be lessened by reducing the amount of phosphorus entering the system, increasing phosphorus losses to the ocean, or in some way blocking the trapping and recycling processes.
Flora And Early Secondary Succession In Wetlands Of The Lower Kanawha River Floodplain, West Virginia, Brenda Kay West
Flora And Early Secondary Succession In Wetlands Of The Lower Kanawha River Floodplain, West Virginia, Brenda Kay West
Theses, Dissertations and Capstones
Vegetational and floristic analyses were performed on eight wetlands undergoing early secondary succession on the Kanawha River floodplain of' West Virginia. All sites have been cleared previously and have been revegetated for 30 years or less. Vegetation was classified into ten cover types according to species composition and physiognomy. Aquatic, graminoid dominated wet meadow, shrub-wet meadow, Spiraea tomentosa dominated, Comus amomum dominated, and various early forested wetlands were among the cover types classified and surveyed. Frequency, density, dominance, and importance values were established with random plot sampling for both herbaceous and woody species. A total of 262 species distributed among …
Inflorescence Architecture And Evolution In The Fagaceae, Robert B. Kaul, Ernst C. Abbe
Inflorescence Architecture And Evolution In The Fagaceae, Robert B. Kaul, Ernst C. Abbe
School of Biological Sciences: Faculty Publications
First paragraph:
Inflorescence architecture is receiving increasing attention with respect to its role in the life of plants, but much remains to be learned of its effects on pollination and dispersal biology (see Wyatt, 1982). Little is known of the biology of fagaceous inflorescences or of their relationships with the growth or the reproductive patterns of the trees. Most studies (Abbe, 1974; Macdonald, 1979; Fey & Endress, 1983) have concentrated on the nature of the flower clusters (often called dichasia or partial inflorescences) and cupules. Hjelmqvist (1948) and Soepadmo (1972) briefly reviewed the variety of inflorescences in the Fagaceae. Čelakovský …