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Full-Text Articles in Physical Sciences and Mathematics
A Quantitative Analysis Of The Effects Of Urbanization, Mesophication And Prescribed Burns On Oak Woodlands In The Chicago Metropolitan Area, Chad Populorum
A Quantitative Analysis Of The Effects Of Urbanization, Mesophication And Prescribed Burns On Oak Woodlands In The Chicago Metropolitan Area, Chad Populorum
Celebration of Learning
Urban expansion has had devastating impacts on forest ecosystems, especially within the past century. Human attempts to dominate nature have diminished natural disturbance regimes, which have maintained the biodiversity and historic composition of these ecosystems. Fires have been a prominent force in maintaining the structure of oak, hickory and other heliophytic (sun loving and fire-adapted) forest systems. Human induced fire suppression has led to mesophication across North America. Mesophication is the transition from drier conditions with open canopies to wetter conditions with closed canopies. These new conditions decrease the survival rates of these important species and begin to favor mesophytic …
Microspora Competition For Sunlight, Christina Sauer
Microspora Competition For Sunlight, Christina Sauer
Celebration of Learning
The focus of this project was to study the primary production of the filamentous green algae, Microspora, and its potential to inhibit its own photosynthesis as well as the potential for rooted aquatic plants to inhibit its photosynthesis. The spatial distribution of Microspora could be explained by this competition between organisms. To test this, I set up buoys in areas of rooted aquatic plants, Microspora mats, and direct sunlight. The buoys held Biological Oxygen Demand bottles in which Microspora was held in-situ for net primary production measurements. Net primary production was defined as the difference between the final and …