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Articles 1 - 20 of 20
Full-Text Articles in Life Sciences
Pollen Morphology Of The New Species Mimulus Shevockii And A Possibly Related Species, M. Barbatus (Scrophulariaceae), Charles L. Argue
Pollen Morphology Of The New Species Mimulus Shevockii And A Possibly Related Species, M. Barbatus (Scrophulariaceae), Charles L. Argue
Journal of the Minnesota Academy of Science
The pollen grains of Mimulus shevockii and M barbatus have three long, equally spaced, meridionally oriented apertures with transversely ruptured membranes, and the pollen walls are microreticulate with smooth muri. The pollen evidence (pollen size and shape, rupturing pattern and ornamentation of the aperture membrane, size and spacing of lumina, and ornamentation of muri) is applied to comparisons between the pollen of M shevockii and that of other species in section Paradanthus. These data are consistent with a proposed relationship between M shevockii and M barbatus of the M rubellus/M palmeri group.
A Survey Of The Vascular Plants Of Norway Dunes, Janet Boe
A Survey Of The Vascular Plants Of Norway Dunes, Janet Boe
Journal of the Minnesota Academy of Science
Norway Dunes, a 320-acre preserve located in Kittson County, Minnesota, and owned by The Nature Conservancy, is named for the parabolic sand dunes found within its boundaries. These dunes are covered with oak sand savanna, a natural community that is threatened in Minnesota. This oak sand savanna harbors four plant species that are also threatened or of special concern in the state. A deciduous forest and four types of wetlands are other natural communities on the preserve. During a vascular plant survey of the tract, 207 species were collected. Some of these species represent range extensions within the state.
Additions And Confirmations To The Algal Flora Of Itasca State Park I. Desmids And Diatoms From North Deming Pond, Huan Ngo, Gerald W. Prescott, David B. Czarnecki
Additions And Confirmations To The Algal Flora Of Itasca State Park I. Desmids And Diatoms From North Deming Pond, Huan Ngo, Gerald W. Prescott, David B. Czarnecki
Journal of the Minnesota Academy of Science
The summer desmid and diatom flora of North Deming Pond in lake Itasca State Park is presented. One hundred sixty desmid taxa representing 23 genera are recorded. Of these, 15 taxa appear to be park records and 82 are apparently Minnesota records. The desmid genera, Closterium, Cosmarium, Euastrum, Micrasterias, Pleurotaenium, and Staurastrum display the most taxa. The 136 diatom taxa recorded represent 27 genera. More than half of the taxa are assignable to the genera Eunotia, Navicula, Neidium, and Pinnularia. Given the brief and cursory nature of this study, the taxomic representation of these algae indicates high species richness and …
Breeding Bird Populations In A Proposed Wetland Treatment Area Of Northern Minnesota, Joann M. Hanowski, Gerald J. Niemi
Breeding Bird Populations In A Proposed Wetland Treatment Area Of Northern Minnesota, Joann M. Hanowski, Gerald J. Niemi
Journal of the Minnesota Academy of Science
A census of breeding bird populations was taken in a 40- hectare wetland near Biwabik, Minnesota, prior to the use of this wetland for phosphorus removal from treated wastewater. The wetland was comprised of four distinct habitat types: shrub swamp, black ash (Fraxinus nigra) forest, open coniferous forest, and closed coniferous forest. We used a line transect (about 4 km in length) to document species composition, relative species abundance, and habitat associations of the bird community. A total of816 individuals (mean= 204) and 45 species (mean = 34) were observed during four censuses in June and July, 1985. Two distinct …
Range Extensions For Orchis Spectabilis, Corallorhiza Trifida, And C. Striata In Minnesota, Charles I. Argue
Range Extensions For Orchis Spectabilis, Corallorhiza Trifida, And C. Striata In Minnesota, Charles I. Argue
Journal of the Minnesota Academy of Science
The Showy Orchis, the Striped Coral-root, and the Early Coral-root are reported as new additions to the orchid flora of Otter Tail County. The records for the first two species provide notable range extensions within Minnesota and represent, respectively, the most northern and southwestern localities thus far recorded for these species in the state
Growth And Mortality Of Shoots In Three Populations Of Typha Glauca Godr., John Michael Penko, Douglas C. Pratt
Growth And Mortality Of Shoots In Three Populations Of Typha Glauca Godr., John Michael Penko, Douglas C. Pratt
Journal of the Minnesota Academy of Science
A double sampling technique and permanent quadrats were used to monitor seasonal changes in shoot density and aboveground standing crop in three Minnesota Typha glauca populations. Shoot growth began several weeks later in stands located in floating mats (Boot Lake and Cedar Creek) relative to a nonfloating stand (Lauderdale). Mortality reduced shoot density by 10.8% at Boot Lake, 6.3% at Cedar Creek, and by 53% at Lauderdale. Shoot death was largely confined to smaller than average shoots at Boot Lake and Cedar Creek. At Lauderdale many relatively large shoots were killed by a lepidopteran stem borer (Archanara oblonga Grt.) or …
Biotechnology Overview: 1987, Jeffrey L. Fox
Biotechnology Overview: 1987, Jeffrey L. Fox
Journal of the Minnesota Academy of Science
No abstract provided.
Views On Biotechnology, George B. Rathmann
Views On Biotechnology, George B. Rathmann
Journal of the Minnesota Academy of Science
No abstract provided.
Biotechnology: The Public Concerns, Robert L. Sinsheimer
Biotechnology: The Public Concerns, Robert L. Sinsheimer
Journal of the Minnesota Academy of Science
No abstract provided.
Perspectives On Biotechnology Development In Minnesota, Michael C. Flickinger
Perspectives On Biotechnology Development In Minnesota, Michael C. Flickinger
Journal of the Minnesota Academy of Science
No abstract provided.
A Broad Perspective On Biotechnology And Environmental Regulation, Glenn L. Radde
A Broad Perspective On Biotechnology And Environmental Regulation, Glenn L. Radde
Journal of the Minnesota Academy of Science
No abstract provided.
Biotechnology In The Conquest Of Infectious Diseases, Ashley T. Haase
Biotechnology In The Conquest Of Infectious Diseases, Ashley T. Haase
Journal of the Minnesota Academy of Science
No abstract provided.
Biotechnology And Its Future: Implications For School And Careers, John Frey, John Cronn
Biotechnology And Its Future: Implications For School And Careers, John Frey, John Cronn
Journal of the Minnesota Academy of Science
No abstract provided.
Meeting Legitimate Public Concerns Over Biotechnology: The Need For A Special Infrastructure, Philip J. Regal
Meeting Legitimate Public Concerns Over Biotechnology: The Need For A Special Infrastructure, Philip J. Regal
Journal of the Minnesota Academy of Science
No abstract provided.
Investment Opportunities In Biotechnology: Prospects And Strategies, Arthur R. Kydd
Investment Opportunities In Biotechnology: Prospects And Strategies, Arthur R. Kydd
Journal of the Minnesota Academy of Science
No abstract provided.
Investment Opportunities In U.S. Biotechnology Companies-High Upside Rewards Hand-In-Hand With Equally Great Downside Risk, Edward L. Mutsch
Investment Opportunities In U.S. Biotechnology Companies-High Upside Rewards Hand-In-Hand With Equally Great Downside Risk, Edward L. Mutsch
Journal of the Minnesota Academy of Science
No abstract provided.
Biotechnology In Agriculture: An Overview, C. Eugene Allen
Biotechnology In Agriculture: An Overview, C. Eugene Allen
Journal of the Minnesota Academy of Science
No abstract provided.
Biotechnology: Altering Agriculture And The Nature Of Food, Susan K. Harlander
Biotechnology: Altering Agriculture And The Nature Of Food, Susan K. Harlander
Journal of the Minnesota Academy of Science
Fundamental discoveries in molecular biology within the past 30 years have initiated a biological revolution, which will have a profound effect on industry, government, and academic institutions. To date, the major industrial focus of this technology has been its use in the development of human healthcare-related products, such as human growth hormone, insulin, interferons, and interleukins, which can now be mass produced by genetically engineered microorganisms. However, the potential for genetically engineering plant, animal, and microbial cells with desirable structural, functional or chemical properties, offers an exciting new dimension for biotechnological input into the production and processing of foods. This …
Biotechnology: Promise And Potential In Animal Healthcare, David Reed
Biotechnology: Promise And Potential In Animal Healthcare, David Reed
Journal of the Minnesota Academy of Science
No abstract provided.
Commercialization Of Biotechnology, Daniel G. Miller
Commercialization Of Biotechnology, Daniel G. Miller
Journal of the Minnesota Academy of Science
No abstract provided.