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Full-Text Articles in Life Sciences
Evolution Of Floral Microbes And The Resulting Effects On Pollinator Preference, Hailey Hatch
Evolution Of Floral Microbes And The Resulting Effects On Pollinator Preference, Hailey Hatch
Undergraduate Honors Capstone Projects
Floral microbes are an overlooked aspect of the extended floral phenotype. Through altering floral nectar chemistry, they can mediate interactions between flowers, pollinators, and other floral microbes, with significant implications for plant and pollinator health. Interactions between floral microbes and pollinators are critically important to understand, as pollinators provide important ecosystem services in both natural and agriculture systems. Here, I explored how floral nectar traits affected both evolution and competition within the floral yeast Metschnikowia reukaufii, the floral bacterium Bacillus subtilis, and other microbes isolated from Brassica rapa nectar, an important plant model system and oilseed crop. To …
Green River Foodweb: Colorado Squawfish Nursery Habitat Near Ouray National Wildlife Refuge, Utah, Linden Hamer Alder
Green River Foodweb: Colorado Squawfish Nursery Habitat Near Ouray National Wildlife Refuge, Utah, Linden Hamer Alder
Undergraduate Honors Capstone Projects
Effects of fish introductions are relatively well studied in lentic habitats, and apparently range from extremely disruptive to notably benign (Kruegger and May 1991). Though researched less completely, fish introductions may also alter native faunas in lotic habitats. Ptychocheilus lucius, commonly known as the Colorado squawfish (C. squawfish), is a fish species endemic to the Colorado river system. The population is currently experiencing dramatically reduced recruitment successes relative to historical rates. Introduced fishes such as channel catfish, smallmouth bass, and green sunfish are prevalent in the Upper Colorado River. The introduced fish presence is increasingly suspected by researchers as a …
Does Competition Drive Community Structure? An Analysis Of Grasshopper Competition, H. Joseph Lachowski
Does Competition Drive Community Structure? An Analysis Of Grasshopper Competition, H. Joseph Lachowski
Undergraduate Honors Capstone Projects
lnterspecific competition has been broadly defined as a negative-negative relationship between species that share a limiting resource. The impact of competition on ecological communities is a widely debated topic (Schoener 1982). Thus community structure is very complex and, in addition to competition, can be influenced by many factors, including climate, disease, parasites, and predation (Hairston et al. 1960; Stower & Greathead 1969; Wiens 1977). The importance of competition depends upon the importance of other processes (Welden & Slauson 1986).