Life Sciences Commons^™

Tb175: A Numerical Method And Supporting Database For Evaluation Of Maine Peatlands As Candidtate Natural Areas, Ronald B. Davis, Dennis S. Anderson

Technical Bulletins

In Maine, non-tidal peatlands comprise the last major terrestrial ecosystem group remaining largely undisturbed by humans, and for which there still exists a full range of options for protection in near-pristine condition. To make the best choices of areas to protect, ecologically based prioritization of candidate natural areas is needed. This technical bulletin presents a quantitative method of evaluation of the natural features of peatlands—providing the fundamental tool for establishing peatland protection priorities. We apply the method to the evaluation of 76 Maine peatlands representing all the morphologic/hydrologic peatland types in the biophysical regions of the state.

Use Of Randomly Amplified Polymorphic Dna-Polymerase Chain Reaction (Rapd-Pcr) To Distinguish North American Populations Of Acroptilon Repens (L.) Dc, Raul A. Ruiz

Theses and Dissertations - UTB/UTPA

Sixty U.S. populations of Acroptilon repens collected in 1998 were analyzed using RAPD-PCR. Each population was represented by five specimens gathered from each location. A total of 301 specimens were examined using two Operon Technologies, RAPD-PCR primers (A 10 and C04). The DNA amplification products produced through the PCR process were electrophoretically separated to produce DNA fragments ranging from 100 to 2000 base-pairs in length. The 60 U.S. populations sampled, produce ten RAPD banding pattern types using A 10 primer and seventeen pattern types with C04. Genetic variation within and among the populations was low, however, one dendogram did show …

The Prairie Naturalist Volume 31 No.4 December 1999

The Prairie Naturalist

THE FISHES OF THE UPPER MOREAU RIVER ▪ T. M. Loomis, C. R. Berry, Jr., and J. Erickson

DO INTERNAL FIRE LANES AFFECT NEST DEPREDATION RATES IN PRAIRIES? ▪ K. A. Warren and M. R. Ryan

SPECIES COMPOSITION AND TROPHIC STRUCTURE OF INSECT COMMUNITIES IN TEXAS PRAIRIES. ▪ G. N. Cameron and E. H. Bryant

FIDELITY OF MALLARDS TO ARTIFICIAL NESTING STRl!CTURES ▪ T. Yerkes

OBSERVATIONS ON REPRODUCTION IN THREE SPECIES OF BATS ▪ D. W. Sparks, J. R. Choate, and R. J. Winn

EARLIEST SEASONAL RECORD OF REPRODUCTION IN THE HOARY BAT ON THE NORTHERN GREAT PLAINS ▪ T. …

Conservation Implications Of Genetic Variation In Three Rare Species Endemic To Florida Rosemary Scrub, Rebecca W. Dolan, Rebecca Yahr, Eric S. Menges, Matthew Halfhill

Scholarship and Professional Work - LAS

Habitat conversion and fire suppression during the last 50 yr have greatly reduced and altered Florida scrub vegetation, resulting in threats to the persistence of its unique flora. As part of a larger conservation project, we investigated patterns of isozyme variation in three rare perennial scrub plants with overlapping ranges endemic to Florida rosemary scrub on the Lake Wales Ridge. All three species have low levels of genetic variation, comparable to or lower than those generally reported for rare plants with restricted geographic ranges. Liatris ohlingerae has more than twice the expected heterozygosity of the other two species, with little …

The Correlation Of Profiles Of Surface Ph And Elongation Growth In Maize Roots, Winfried Peters, Hubert Felle

Winfried S. Peters

Humulus Japonicus Siebold & Zucc., John E. Ebinger

Specimens by Name

No abstract provided.

Ferns, Robert H. Mohlenbrock

Illustrated Flora of Illinois

Perhaps no other group of plants attracts more interest among both professional and amateur botanists than ferns. As early as 1846, when one of the first lists of Illinois plants was published, sixteen species of ferns were already known in the state. The longtime interest of a great many people makes the distribution of ferns better known than that of any other group of plants in Illinois.

This detailed account of ferns and fern-allies was first published in 1967 as the first volume in the series The Illustrated Flora of Illinois. Eminent botanist Robert H. Mohlenbrock has now revised Ferns …

Herbicide Evaluation In Arkansas Rice, 1998, Ron Talbert, Ford Baldwin, David Gealy, Tomilea Dillon, Lance Schmidt, Eric Scherder, Celeste Wheeler, Leopoldo Estorninos Jr., Jeff Rutledge, Rebecca Chavez

Arkansas Agricultural Experiment Station Research Series

Weed control is economically important for production of rice, a major crop in Arkansas. These findings summarize efforts of the team of Arkansas scientists working on weed control strategies for rice during 1998. Various technologies were evaluated in field studies involving the major weed problems and rice production systems used in the state. Results from these studies will add to the arsenal of weed control options for producers. The preliminary results reported here generally warrant further testing for more advanced findings and for the labeling of new technologies and, finally, are the basis for updating safe, effective, and economical recommendations …

Review Of A Classification Of North American Biotic Communities By David E. Brown, Frank Reichenbacher, Susan E. Franson, Robert B. Kaul

Great Plains Research: A Journal of Natural and Social Sciences

This is the latest of many efforts over the past century to classify North America's natural, undisturbed biological communities as they existed in pre-agrarian times and in many places continue to exist today. Its authors' stated objective is to integrate existing works into a hierarchical synthesis that can lead to a standardized system for researchers, land managers, conservation groups, and government agencies. To that end, the authors have modified and expanded David Brown's earlier classification for the Southwest to cover the continent, defined here as the area from the Panama Canal to the Arctic, including Greenland and some of the …

Sfa Gardens Newsletter, Sep 1999, Sfa Gardens, Stephen F. Austin State University

SFA Gardens Newsletters

No abstract provided.

Gender Variation In Croton Californicus (Euphorbiaceae), James Lynwood Smith Ii

Loma Linda University Electronic Theses, Dissertations & Projects

Croton californicus Muell. Arg. (Euphorbiaceae) is a subshrub suspected of being dimorphic with phase choices. Gender variation in C. californicus was studied in natural populations of southern California for three years (1994-96) to observe patterns of gender !ability. Some sites exhibited significantly male-biased sex ratios, and these sites often had the greatest number of monoecious morphs, cosexual plants with unisexual flowers. Gender variation was quantified for cosexual plants by calculating the Estimated Floral Gender (EFG) which varied from 1.00 (female) to 0.00 (male). The distribution of the EFG was highly skewed towards maleness. Monoecious individuals were then categorized by …

Phyla Lanceolata (Michx.) Greene, Gordon C. Tucker

Specimens by Name

No abstract provided.

Verbena Bonariensis L., Gordon C. Tucker

Specimens by Name

No abstract provided.

Verbena Urticifolia L., Bob Edgin

Specimens by Name

No abstract provided.

Acer Rubrum Wats., Gordon C. Tucker

Specimens by Name

No abstract provided.

Vitis Vulpina L., Gordon C. Tucker

Specimens by Name

No abstract provided.

Phyla Lanceolata (Michx.) Greene, Bob Edgin

Specimens by Name

No abstract provided.

The Prairie Naturalist Volume 31, No.3 September 1999

The Prairie Naturalist

HANTA VIRUS INFECTION IN NORTH DAKOTA SMALL MAMMALS: 1994,1995 ▪ R. W. Seabloom, J. J. Feist, and S L. McDonough

AMERICAN WOODCOCK IN COLORADO ▪ C. E. Braun

AVIFAUNA OF AN EARLY SUCCESSIONAL HABITAT ALONG THE MIDDLE MISSOURI RIVER ▪ D. L. Swanson

REPRODUCTIVE STATUS OF FLEA BEETLES IN NORTH DAKOTA AND SOUTH DAKOTA ▪ M. A. Brinkman and S. A. Clay

NUTRIENT AND ENERGY CHARACTERISTICS OF INVERTEBRATES FROM TWO LOCATIONS IN KANSAS ▪ S. G. Papon, R. J. Robel, and K. Kemp

BOOK REVIEWS

The Wood Warblers ▪ M. G. Knutson

A Fascination With Birds. ▪ J. A. Dechant …

B.R. Wells Rice Research Studies 1998, R. J. Norman, T. H. Johnston

Arkansas Agricultural Experiment Station Research Series

No abstract provided.

Phemeranthus Rugospermus (Holz.) Kiger, Janice Coons

Specimens by Name

No abstract provided.

Phyla Lanceolata (Michx.) Greene, Jennifer Ward

Specimens by Name

No abstract provided.

Phyla Lanceolata (Michx.) Greene, Jennifer Ward

Specimens by Name

No abstract provided.

Lysimachia Quadriflora Sims, Jennifer Ward

Specimens by Name

No abstract provided.

Verbena Stricta Vent., John E. Ebinger

Specimens by Name

No abstract provided.

Phyla Lanceolata (Michx.) Greene, John E. Ebinger

Specimens by Name

No abstract provided.

Verbena Urticifolia L., John E. Ebinger

Specimens by Name

No abstract provided.

Morus Alba Var. Tatarica (L.) Ser., John E. Ebinger

Specimens by Name

No abstract provided.

Field Evaluation Of Herbicides On Small Fruit, Vegetable, And Ornamental Crops, 1998, Ron E. Talbert, Lance A. Schmidt, Jennifer A. Wells

Arkansas Agricultural Experiment Station Research Series

Growers generally use herbicides to efficiently produce high-quality fruit and vegetables for processing or fresh market sales. Due to the smaller acreage of these crops compared to major field crops, fewer herbicides are registered for use in fruit and vegetable crops than for field crops. Each year, new herbicides are evaluated under Arkansas growing conditions with the objective of improving the herbicide technology for the grower, processor, and ultimately the consumer. This report includes studies on the control of many of the more serious weed problems in important crops of this region, including snapbeans, spinach, southernpeas, watermelon, cantaloupe, summer squash, …

Fraxinus Pennsylvanica Marsh., John E. E. Ebinger

Specimens by Name

No abstract provided.

Fraxinus Pennsylvanica Marsh., John E. E. Ebinger

Specimens by Name

No abstract provided.