Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 5 of 5
Full-Text Articles in Life Sciences
Midsummer Standing Crops Of Wetland Sedge Meadows Along A Transect From Forest To Prairie, Eville Gorham, John M. Bernard
Midsummer Standing Crops Of Wetland Sedge Meadows Along A Transect From Forest To Prairie, Eville Gorham, John M. Bernard
Journal of the Minnesota Academy of Science
Midsummer standing crops of wetland sedges have been measured along a transect from forest to prairie in northwestern Minnesota. The eight forest stands, all but one on waterlogged fibrous peats, are dominated by Carex lacustris (4 stands), C. lasiocarpa (2), C. rostrata (1) and C. atherodes (1). They exhibit above-ground standing crops ranging from 425 to 738 g dry wt/m2, with a mean of 606 g/m2. The five prairie stands on well-drained silty peats are all dominated by Carex atherodes, and their standing crops range from 679 to 1248 g dry wt/m2, with a mean of 941 g/m2. Above-ground standing …
Status Of Containerized Forest Seedling Research In Minnesota, A. A. Alm
Status Of Containerized Forest Seedling Research In Minnesota, A. A. Alm
Journal of the Minnesota Academy of Science
The paper describes a series of containerized seedling studies in Minnesota. Descriptions of the tubeling, styroblock plug, book planter plug and Japanese paper pot systems are provided. Survival results of field plantings with the various systems under a range of conditions are given.
Comparison Of Artificial Substrates In Bottom Fauna Studies On A Large River, David R. Mcconville
Comparison Of Artificial Substrates In Bottom Fauna Studies On A Large River, David R. Mcconville
Journal of the Minnesota Academy of Science
During the summer of 1974, five types of artificial substrates and grab sampling were evaluated for sampling efficiency in pool No. 3 of the Upper Mississippi River. A total of 35 taxa of organisms were collected by the different techniques. Ponar grab sampling collected representatives of only eight taxa, whereas concrete block samplers collected 22 taxa . Intermediate in taxonomic collection were the Hester-Dendy samplers with 21 taxa, the barbecue basket samplers with 20 taxa, the Miller samplers with 17 taxa, and conservation webbing with 12 taxa. The barbecue basket samplers were the most productive, yielding at least five times …
Aquatic Ascomycetes From Lake Itasca, Minnesota, A. R. Cavaliere
Aquatic Ascomycetes From Lake Itasca, Minnesota, A. R. Cavaliere
Journal of the Minnesota Academy of Science
A preliminary report of the aquatic Ascomycetes of Lake Itasca, Minnesota. Included is an introduction, methods of harvesting and studying, a key, descriptions, and illustrations of 19 common ascomycetous fungi inhabiting the study area .
Studies On Schistosome Dermatitis ('Swimmer's Itch") In Minnesota, Donald E. Gilbertson, Richard Wedlund
Studies On Schistosome Dermatitis ('Swimmer's Itch") In Minnesota, Donald E. Gilbertson, Richard Wedlund
Journal of the Minnesota Academy of Science
A preliminary study was conducted to determine the causative agents of schistosome dermatitis ( "swimmer's itch") in Minnesota and to determine the incidence schistosome infection in vector snails. A total of 1180 snails were collected from ten different localities, eight of which were sites of known schistosome activity . The incidence of schistosome infection in snails from individual areas was always less than 10 percent. Cercariae of Trichobilharzia ocellata from Lymnaea stagnalis were the most frequently-found schistosomes in our study.