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Full-Text Articles in Life Sciences
Development Of Molecular Tools For Identification Of Prairie Terrestrial And Wetland Algae, Esther Mundembo Kapinga
Development Of Molecular Tools For Identification Of Prairie Terrestrial And Wetland Algae, Esther Mundembo Kapinga
UNO Student Research and Creative Activity Fair
Algae are a diverse group of photosynthetic protists. Green algae are typically unicellular, though some may occur as multicellular colonies, and they are found across a wide range of habitats, including marine, freshwater, and terrestrial environments. As photosynthetic producers and sometimes symbionts, algae can occupy important roles in an ecosystem; in other circumstances they can have negative impacts on environmental quality. Estimations of the number of green algal species range from eight thousand to over fifteen thousand. The identification of individual algal species can be problematic due to their small size and typically simple cell anatomy. For this reason, molecular …
Small Scale Heterogeneity In Vegetation Structure In A Patch-Burn-Grazing Landscape, Eric G. Behrens
Small Scale Heterogeneity In Vegetation Structure In A Patch-Burn-Grazing Landscape, Eric G. Behrens
UNO Student Research and Creative Activity Fair
Disturbances are drivers of spatial change in the plant communities of the tallgrass prairie ecosystem. Fire and large herbivore grazing are prevalent disturbances that maintain the vegetation structure and create spatial heterogeneity in vegetation at various scales. The fire-grazing disturbance interaction occurs when areas that have been recently burned are followed by intense grazing due to the high quality of forage regrowth. This interaction has been managed in tallgrass prairies in a homogenous method using uniform burning and grazing and a heterogeneous method using patch-burn-grazing (PBG). Vegetation heterogeneity at a large scale has been studied in PBG and uniformly managed …