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Articles 91 - 105 of 105
Full-Text Articles in Physical Sciences and Mathematics
Awards And Recognition, Iowa Academy Of Science, 1999
Awards And Recognition, Iowa Academy Of Science, 1999
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
Index For Volume 106
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
Cover - Table Of Contents
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
Characterization Of Central Iowa Forests With Permanent Plots, James W. Raich, Donald R. Farrar, Ruth A. Herzberg, Eenam Sin, Cindy L. Johnson-Groh
Characterization Of Central Iowa Forests With Permanent Plots, James W. Raich, Donald R. Farrar, Ruth A. Herzberg, Eenam Sin, Cindy L. Johnson-Groh
Journal of the Iowa Academy of Science: JIAS
We describe a standard methodology for establishing and inventorying the woody vegetation in 0.1-ha permanent forest plots and we utilize the data from 86 plots to characterize the mature forest vegetation of central Iowa. Obvious differences existed between bottomland hardwoods and upland forest stands, but disturbed uplands contained species typical of bottomlands. Little-disturbed upland forest plots included a variety of species associations, but variation among plots was continuous. The trees dominating the mature upland forests of central Iowa grow in a wide variety of habitats, with the result that predictability of stand structure at any location is limited. Stands on …
Cover - Table Of Contents
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
The Vascular Flora Of Doolittle Prairie State Preserve - A Prairie Pothole Wetland Complex, Paul R. Wetzel, William R. Norris, Kevin M. Lyles
The Vascular Flora Of Doolittle Prairie State Preserve - A Prairie Pothole Wetland Complex, Paul R. Wetzel, William R. Norris, Kevin M. Lyles
Journal of the Iowa Academy of Science: JIAS
Doolittle Prairie State Preserve is a 10 ha prairie pothole wetland complex located in Story County, central Iowa. A vascular flora of Doolittle Prairie is compiled and the prominent vegetation communities and zones described based on field observations by the authors and several additional investigators from 1982 to 1997. The preserve contains 14 shallow wetlands comprised of low prairie, wet meadow, and shallow emergent plant communities, as well as a disturbed prairie community and fence rows. These communities support a diverse vascular flora of 223 native species, plus 42 non-natives, representing 59 families and 178 genera. The Asteraceae (40), Poaceae …
Cover - Table Of Contents
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
Cover - Table Of Contents
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
A Municipal Inventory And Evaluation Of Natural Areas: History And Methodology, William R. Norris, Donald R. Farrar
A Municipal Inventory And Evaluation Of Natural Areas: History And Methodology, William R. Norris, Donald R. Farrar
Journal of the Iowa Academy of Science: JIAS
An inventory of natural areas in the vicinity of Ames, Iowa was conducted (1990-1994) in response to conflicts arising when significant natural areas were encountered on lands approved for development by the City of Ames (Iowa) Planning Office. Methods for objective evaluation of woodland and prairie quality were developed for use during the inventory. The woodland method is based on four components: I) Diversity of expected species, H) Structure of canopy and understory layers, III) Fidelity of species to the habitat and IV) absence of Introduced Species. Rules are explicitly stated for the scoring of each component for both the …