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Proceedings Of The Eleventh North American Prairie Conference: Index To Authors And Key Words

Proceedings of the North American Prairie Conferences

Index to Authors and Key Words

Do You Know Platanthera Praeclara?, Rochelle Bjugstad, Ardell J. Bjugstad

Proceedings of the North American Prairie Conferences

This is a brief synthesis on the plant, habitat and range of the western prairie fringed orchid (Platanthera praeclara Sheviak and Bowles). This species was once common in the tall grass prairie, but its numbers have been greatly reduced by improper management and loss of habitat. Comparisons are made to the eastern prairie fringed orchid [Platanthera leucophaea (Nutt.) Lindl].

Proceedings Of The Eleventh North American Prairie Conference: Cover

Proceedings of the North American Prairie Conferences

No abstract provided.

Lloyd C. Hulbert 1918-1986 (Proceedings Dedication)

Proceedings of the North American Prairie Conferences

Because we have and will yet all benefit from his vision, leadership, and unselfish efforts, it is fitting that these Proceedings be dedicated to Lloyd C. Hulbert, Professor of Biology, Plant Ecologist for the Kansas Agricultural Experiment Station, and Director of the Konza Prairie Research Natural Area.

Pollen Collectors And Other Insect Visitors To Penstemon Haydenii S. Wats., H. Randy Lawson, V. J. Tepedino, T. L. Griswold

Proceedings of the North American Prairie Conferences

Records of insects visiting the flowers of Penstemon haydenii (S. Wats.) are supplied. The flower-visitor fauna was different at the two sites censused. Primary pollinators appeared to be four species of megachilid bees which consistently visited the flowers for pollen. While bees exhibited high fidelity to flowers of the genus Penstemon, analysis of the pollen carried by females suggests that crossing over between Penstemon species on a particular foraging trip may be common. Opportunities for interspecific hybridization almost certainly occur.

Plant Species Composition And Groundwater Levels In A Platte River Wet Meadow, Paul J. Currier

Proceedings of the North American Prairie Conferences

Species composition was monitored in seven permanent exclosures at Mormon Island Crane Meadows, near Grand Island, Nebraska from 1982 to 1987. Crane meadows is a 1,050 ha (2,600 acre) native lowland prairie complex with a corrugated topography of wetland swales and dry sand ridges. Variable precipitation, periodic over-bank flooding, and river stage fluctuations complicate the system's hydrology. In general, springs are wet, but, by late summer, the meadows are usually dry, closely paralleling river flows and precipitation patterns. A sustained high water period in 1983 and 1984 was responsible for major changes in species abundance. Plant responses were consistent with …

Phenology Of Native Angiosperms Of South Padre Island, Texas, Robert I. Lonard, Frank W. Judd

Proceedings of the North American Prairie Conferences

Flowering and fruiting patterns for 74 species of native angiospenns were studied on South Padre Island, Texas, from May 1984 to May 1986. Four patterns were recognized: 1) a continuous cycle of flowering and fruiting; 2) a cycle limited to spring through autumn; 3) a two season regime, either spring-summer or summer-fall; and 4) a cycle completed in one season or less (spring or fall). Marked year-to-year variation occurred in flowering and fruiting responses within individual species. Only one-fifth ofthe species exhibited the same monthly patterns in successive years. Number of species in flower or fruit was significantly correlated with …

Nebraska Sand Hills: The Last Prairie, Robert F. Whitcomb

Proceedings of the North American Prairie Conferences

Although North American grasslands are diverse and biotically rich, their conservation has never received high priority. As a result, the prairie landscape has all but disappeared. However, one prairie region has retained its essential pre-Columbian features. This is the Nebraska Sand Hills Prairie, a 4.8 million ha stabilized dune region of Holocene origin. Because the Sand Hills lie at the heart of the North American grasslands, their biota is influenced by the adjacent short- and tallgrass prairies and by northern (cool-season) and southern (warm-season) grasslands. In addition, the Sand Hills have their own distinctive sand-dependent biota. Equally important, however, is …

Manitoba's Tall-Grass Prairie Conservation Project, Joanne Joyce, John P. Morgan

Proceedings of the North American Prairie Conferences

Manitoba's tall grass prairies mark the northernmost extent of that community in North America and historically comprised the most extensive area of tallgrass prairie in Canada. The Tall-Grass Prairie Conservation Project is Manitoba's first systematic inventory of this community. Potential sites were located using black-and-white aerial photography, land-use maps, and referrals from outside sources. Sites were systematically ground-checked and ranked using native species dominance, abundance and diversity, evidence of disturbance, and location. About 19% (116,600 ha) of the historic range of the true prairie was surveyed between May and October of 1987; an additional 23% (138,000 ha) was surveyed between …

Long-Term Grass Dynamics Within A Mixed-Grass Prairie, Brian S. Mihlbacher, Fred E. Smeins, Gerald W. Thomas, Charles A. Taylor

Proceedings of the North American Prairie Conferences

Western portions of the Edwards Plateau are dominated by a grass mosaic which consists of a rhizomatous midgrass, tobosagrass [Hilaria mutica (Buckl.) Benth.], and two stoloniferous short grasses, common curlymesquite [Hilaria belangeri (Steud.) Nash] and buffalograss [Buchloe dactyloides (Nutt.) Engelm.]. Permanent 0.3 m x 6 m belt transects were established on three major soil series (Tobosa, Ozona. Valera) across several grazing treatments on the Texas Range Station near Barnhart, Texas, and the distribution of perennial grasses was mapped in 1951 (pre-drought), 1953 (drought), 1957 (post-drought), and 1987. Cover showed no consistent trends in relation to grazing. Total …

Landscape Design Awards

Proceedings of the North American Prairie Conferences

Commercial/Industrial Honor Award

Inventory, Assessment, And Ranking Of Natural Areas Of Walpole Island, P. Allen Woodliffe

Proceedings of the North American Prairie Conferences

A two-year study was begun in 1985 to document and assess the highly significant natural history features of the Walpole Island Indian Reserve in southwestern Ontario, Canada. The northern part of the island complex, where extensive prairie, savannah, and hardwood communities remain, was divided into 30 areas. The southern part, consisting of agricultural lands and wetlands was not examined. Through intensive field study and literature search, over 800 vascular plant species have been recorded from Walpole. Of the total, 12% (97) are rare in Ontario, and 1 % (8) are not known elsewhere in Canada. Ninety-two species of birds have …

Influence Of Harvest And Nitrogen Fertilizer On Four Warm-Season Grasses, James L. Stubbendieck, Cheryl A, Nielsen

Proceedings of the North American Prairie Conferences

Two cultivars each of four warm-season grass species under three N fertilizer treatments and three harvesting regimes were studied to determine the effect of nitrogen fertilizer and harvest date on forage yield. Research was conducted in eastern Nebraska on an alluvial soil. The eight grasses studied were 'Blaze' and 'PM-K-129' little bluestem [Schizachyrium scoparium (Michx.) Nash], 'Cave-in-Rock' and 'Pathfinder' switchgrass (Panicum virgatum L.), 'Holt' and 'Oto' indiangrass [Sorghastrum nutans (L.) Nash], and 'Kaw' and 'Pawnee' big bluestem (Andropogon gerardii var. gerardii Vitman). Dates of harvest were mid-July, mid-August, and early October. Regrowth from plots harvested in …

Germplasm Resources Information Network And Ex Situ Conservation Of Germplasm, Mark P. Widrlechner

Proceedings of the North American Prairie Conferences

The Germplasm Resources Information Network (GRIN), the master database of the National Plant Germplasm System, was queried to measure the usefulness and limitations of ex situ germplasm collections for prairie research. A list of 862 taxa of grasses and forbs native to the prairies of the midwestern United States was checked in a stepwise fashion against recognized names in the GRIN database. Each species was checked against recognized names in the taxonomy area of the database. For each recognized species, the accessions area was queried to see if any populations were entered in the database. The inventory area was then …

Fungus Disease In Relation To Managing Prairie Plants With Fire, Judy F. Shearer, Lois H. Tiffany

Proceedings of the North American Prairie Conferences

Specific fungal foliar diseases were assessed on selected prairie plant species in relation to fire as a management practice on Hayden Prairie Preserve, Iowa. Selected plant species in burned and unburned areas were visually inspected and rated for presence and severity of specific fungal diseases at three sampling times in July and September 1987 and in June 1988. Less disease and lower disease severity ratings were recorded on plants in burned areas except for powdery mildew on Canada tickclover [Desmodium canadense (L.) DC.]. Increasing amounts of disease developed on plants in the areas unburned for one and two years.

Five Years Of Annual Prairie Burns, Donald A. Becker

Proceedings of the North American Prairie Conferences

A prairie site at Pipestone National Monument in southwestern Minnesota was burned each spring from 1983-1987. During the past century of use, much of the site had been invaded by various, non-native, cool-season grasses and broadleaf weeds. Also, various woody species have invaded parts of the site. Annual bums generally induced positive changes in native remnants, primarily with big bluestem (Andropogon gerardii Vitman) and prairie dropseed (Sporobolus heterolepis A. Gray) increasing cover from 6.4 to 21.0%. Cover of native forbs also increased, from 6.5 to 12.8%, due to increased vigor of existing plants and establishment of new individuals. …

Extent Of Woody Vegetation On The Prairie In Eastern Nebraska, 1855-1857, Steven J. Rothenberger

Proceedings of the North American Prairie Conferences

Early surveyors' notes from five counties bordering the Platte River in eastern Nebraska were utilized to measure the extent of original woody vegetation in this region. These data were compared to field studies from the same area made from 1979-1983, were used to determine areas of prairie-forest transition, and were used to tabulate the extent of woody vegetation in the lower Platte River Valley at the time of European settlement (1855-1857). Using a modified importance value based on relative density and relative dominance of witness trees, the highest ranking pre-settlement tree species were cottonwood [Populus eltoides Marsh. spp. monilifera …

Establishment Of Grasses On Sewage Sludge-Amended Strip Mine Spoils, Cassandra S. Rodgers, Roger C. Anderson

Proceedings of the North American Prairie Conferences

Usefulness of native prairie and domesticated grasses in re-vegetating strip mine spoil and producing biomass was examined on 30-year old, recontoured spoil banks located near Canton, Illinois. Grasses were planted in the spring and fall on strip mine spoil and spoil amended with 333 MT/ha of dry sewage sludge. By the end of the second growing season, indiangrass [Sorghastrum nutans (L.) Nash] produced more biomass than the other warm-season grasses, switchgrass (Panicum virgatum L.) and little bluestem [Schizachyrium scoparium (Michx.) Nash], on the unamended plots, and no warm-season grasses survived on the sludge amended plots. Warm-season grasses were …

Sod Seeded Warm-Season Grass With And Without Sod Suppression, B. L. Bush, Steven S. Waller, Bruce E. Anderson, Lowell E. Moser, R. M. Wozniak

Proceedings of the North American Prairie Conferences

Re-vegetation of deteriorated mixed prairie by sod seeding with a lo-till planter minimizes erosion. Critical periods of inter- and intraspecific competition must be identified to design effective methods of sod suppression and seeding rate. Sod seeding studies were conducted in two counties in south central Nebraska over a 3-year period on a silty range site (fine-silty, mixed, mesic, Typic Argiustolls). Sites were dominated by blue grama [Bouteloua gracilis (H.B.K.) Lag. ex Steud.] and buffalograss [Buchloe dactyloides (Nutt.) Engelm.]. Warm-season native grasses were sod seeded with and without chemical sod suppression. Sod seeding required sod suppression for consistent stand …

The Western Prairie Fringed Orchid (Platanthera Praeclara): Monitoringa And Research, Ardell J. Bjugstad, William Fortune

Proceedings of the North American Prairie Conferences

Western prairie fringed orchid (Platanthera praeciara Sheviak and Bowles) populations at one time extended from southwestern Missouri north to northwestern Minnesota, and from eastern Iowa to the Sandhills of north central Nebraska. It is listed as endangered in Iowa and Minnesota and candidate for threatened or endangered status in Kansas, Missouri, Nebraska, North Dakota, Oklahoma, and South Dakota. The questions are, "Why has it declined in numbers?" How have uses such as mowing for hay or grazing by cattle or no use (control) affected the numbers? In 1987, permanently located individual plants were counted on the Sheyenne National Grasslands …

The Vegetation History Of Hempstead Plains, New York, Richard Stalter, Wayne Seyfert

Proceedings of the North American Prairie Conferences

Hempstead Plains, once encompassing 24,282 hectares, originally extended from western Suffolk County, to eastern Queens County, Long Island, New York. Hicks (1892), Harper (1918), Ferguson (1925), Cain et al. (1937), and Seyfert (1972), contended that Hempstead Plains was always devoid of arboreous growth, though Bailey (1949) maintained that shrubs and trees grew on the Plains. Those who have made important vegetation studies of the Plains included Hicks (1892), Harper (1918), Ferguson (1925), Conard (1935), Seyfert (1972), and Stalter and Lamont (1987). Stalter and Lamont (1987) studied a 8.5 ha remnant in the vicinity of Mitchell Field and found little bluestem …

The Future Of A Prolific Variant Of Eastern Gamagrass, Laura Jackson, Chet Dewald

Proceedings of the North American Prairie Conferences

Eastern gamagrass [Tripsacum dactyloides (L.) L.] is currently being selected for higher forage yield. A prolific variant which can produce up to 20 times the number and 3 times the weight of seeds of a normal plant was found in a wild population and is now instrumental in the breeding program. Could this prolific type spread in wild populations? Vegetative vigor of mature plants was assessed by clipping plants to a 7 cm height every two weeks throughout the growing season. The two types did not differ in dry weight of regrowth, suggesting that they tolerate defoliation equally. Seed …

Excerpts Of Remarks By Secretary Of Agriculture Clayton Yeutter At His Swearing-In Ceremony In The Usda Patio February 16, 1989, Clayton K. Yeutter

Clayton K. Yeutter, United States Secretary of Agriculture: Papers

Thank you very much ladies and gentlemen. It's a marvelous privilege, pleasure and opportunity for me to be here this morning. As I look out over this audience I see a multitude of long-time friends and I am so pleased and gratified that all of you were willing to take time out of your hectic and demanding schedules to be here and share this occasion with us. I am not going to make any profound policy pronouncements this morning. I'd like to basically concentrate in my very short time with you on some comments about people.

Survey And Reconnaissance Of Sea Turtles In The Northern Gulf Of Mexico, Larry Ogren

United States Department of Commerce: Staff Publications

This is a report on the results of an aerial survey of nesting beaches conducted during the period from May 16, 1977 to August 11, 1977. The area covered included the barrier beaches and offshore islands from the Florida-Alabama state line to the Rio Grande, Texas. Additional historical information is provided in order to compare current nesting activity with previous years as well as anecdotal observations on the occurrence of sea turtles in this region.

From The Gulf To The Rio Grande: Human Adaptation In Central, South, And Lower Pecos Texas, Thomas Hester, Stephen L. Black, D. Gentry Steele, Ben W. Olive, Anne A. Fox, Karl Reinhard, Leland C. Bement

Karl Reinhard Publications

The South Texas area, Region 3 of the Southwestern Division, U.S. Army Corps of Engineers, is synthesized from archeological and bioarcheological perspectives. Three distinct geographic units within Region 3 are treated in detail: Central Texas Plateau Prairie, South Texas Plains, and Lower Pecos Canyonlands. More than 11,000 years of human adaptation are chronicled for this area, stretching from the Gulf of Mexico to the Rio Grande along the border with northeastern Mexico. Particular attention is devoted to a consideration of the region's prehistoric record; significant problems and data gaps are outlined. For the first time, a compilation has been done …

Pflanzenarten Der Mvr Als Quelle Biologisch Aktiver Verbindungen, L. M. Belenovskaja, L. P. Marakova, T. P. Nadežina, G. A. Kuznecova, V. S. Sinickij

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

Es wurde der Gehalt an Flavonoiden und Kumarinen von 250 Pflanzenarten, die zu 38 Gattungen, 35 Familien der Flora der \ MVR gehören. untersucht. Bei 50 Arten der Familien Asteraceae, Fabaceae, Lamiaceae wurde ein beträchtlicher Gehalt an Flavoiden festgestellt. Kumarine sind für 60 Arten (17 Familien) nachgewiesen. Ausführlich wurde die Zusammensetzung der Flavonoidc für einzelne Arten der Familie Asteraceae und die der Kumarine für Arten der Familie .Apiaceae untersucht. Es wurden für die Gewinnung biologisch aktiver Flavonoide und Kumarine aussichtsreiche Pflanzenarten gefunden, die die Grundlage für die Herstellung originaler Arzneimittel von einem breiten Wirkungsspektrum bilden können.

Untersucht wurde auljerdem die …

Systematische Übersicht Der Gattung Artemisia L. In Der Mongolischen Volksrepublik. - Untergattung Dracunculus (Bess.) Peterm., T. G. Leonova

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

Zu den Beifufjarten der MVR zählen 65 Arten, darunter 5 endemische und 7 subelldemische. ::>ie Arten gehören zu 3 Untergattungen: Artemisia (39 Arten), Dracullculus (BESS.) PETERM. (19 Arten) und Seriphidium (BESS.) PETERM. (7 Arten).

Es wird auf die Unterscheidungsmerkmale von 19 Arten der Untergattung Dracunculus eingegangen, die besonders grolje Schwierigkeiten bei der Bestimmung bereiten. Es wird angenommen, dalj die Stammformen der Untergattung Dracunculus, sowie der ganzen Gattung Artemisia, die ausdauernden krautartigen Wald-und Wiesenpflanzen mit geschlitzten Blättern aus der Sektion Campestres KOROBKOV sind, von denen sowohl einjährige Arten und Halbsträucher der Sektion Campestres, als auch ausdauernde krautige Pflanzen mit ungeteilten …

Education And Rural Revitalization: A Study Of The Link Between Education And Economic Development, Miles T. Bryant

Center for Public Affairs Research (UNO): Publications

Rural Nebraska faces economic uncertainties that perplex state leadership. The public school system is an important part of any community or state effort directed at improving rural life. This chapter analyzes the relationship of Nebraska's schools to rural economic development.

Early Childhood Special Education In The Next Decade: The Impact Of Public Law 99-457 In Nebraska, Deana Finkler, Cordelia Robinson

Center for Public Affairs Research (UNO): Publications

Nebraska has served handicapped children from birth to age 21 through special education and other services since 1978. But in 1991 Public Law 99-457 will include federal funding for preschool services and incentive grants for infants and toddlers. Because Nebraska has already been serving these populations, it will not receive new funds under the new law. States that will be taking advantage of the incentive funds will be looking to Nebraska-and other states with experience in serving handicapped infants and preschoolers-for precedence. Although under P.L. 99-457 policy has been set at the federal level, key state policy considerations remain. These …

At-Risk Youth In Suburban Nebraska, John W. Hill

Center for Public Affairs Research (UNO): Publications

For the greatest part, Nebraska's students are succeeding in school. However, there are students who experience early school failure and early school refusal, students who are "at risk" for leaving school before receiving their high school diplomas. Data from a school district were analyzed as a critical case example to uncover characteristics, achievement, and cognitive skills of identified students at risk in order to answer questions about these perplexing youth. Policy initiatives are discussed.