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Articles 1 - 5 of 5
Full-Text Articles in Entire DC Network
Iowa's Non-Native Graminoids, Thomas R. Rosburg
Iowa's Non-Native Graminoids, Thomas R. Rosburg
Journal of the Iowa Academy of Science: JIAS
Iowa's non-native graminoids include 60 species of grasses and one species of bulrush. The exotic grass species comprise a large proportion (about 31%) of the total species richness of grasses in Iowa, which are second only to the Asteraceae in terms of total species. About half of the non-native graminoids (52%) occur sporadically and form sparse, non-invasive populations, while eighteen species (about 30%) are commonly encountered in large populations throughout the state. About 60% are annuals and a large majority (89%) has been introduced from either Europe or Asia. The C3 photosynthetic pathway is prevalent, occurring in approximately two-thirds of …
Purple Loosestrife: History, Management, And Biological Control In Iowa, Amy P. Wiebe, John J. Obrycki
Purple Loosestrife: History, Management, And Biological Control In Iowa, Amy P. Wiebe, John J. Obrycki
Journal of the Iowa Academy of Science: JIAS
Purple loosestrife (Lythrum salicaria) is an invasive plant species infesting wetlands in North America. Biodiversity and wetland habitat quality are reduced following purple loosestrife establishment. Several management tactics, including cultural, mechanical, and chemical controls, have had limited success in reducing the spread of purple loosestrife. Beginning in the 1990s, a biological control program has introduced several species of natural enemies from Europe that feed on purple loosestrife. Since 1994, Iowa State University has reared and released two species of beetles that feed on purple loosestrife, Galerucella calmariensis and G. pusilla. Biological control is one component of an integrated purple loosestrife …
Effects Of Dietary Fatty Acids On Intestinal Tumorigenesis In ApcMin/+ Mice, Melissa Hansen Petrik
Effects Of Dietary Fatty Acids On Intestinal Tumorigenesis In ApcMin/+ Mice, Melissa Hansen Petrik
Doctoral Dissertations
Dietary fat is thought to be an important environmental factor influencing colorectal cancer risk. n-3 polyunsaturated fatty acids (PUFA) have been linked to a lower risk of colorectal cancer and it has been presumed that this effect is due to their ability to interfere with synthesis of 2-series prostaglandins from arachidonic acid (AA, 20:4 n-6). However, the specific mechanism has not been clearly established. Therefore, we hypothesized that select dietary fatty acids would modulate intestinal tumorigenesis through interference with AA metabolism in the ApcMin/+ mouse, a unique model system bearing many similarities to human intestinal cancer. α-linolenic acid (ALA, …
Biodiversity: The World Of Life, Charles H. Smith
Biodiversity: The World Of Life, Charles H. Smith
DLPS Faculty Publications
No abstract provided.
School Of Marine Science Graduate Catalog 2001-2002, College Of William And Mary, School Of Marine Science
School Of Marine Science Graduate Catalog 2001-2002, College Of William And Mary, School Of Marine Science
Miscellaneous
Catalog for the Graduate program of the School of Marine Science at the College of William & Mary for the listed academic year.