| Darin Franceschini, Undergraduate Researcher, Summer 2007 | |
My research is an field investigation of the effects that exotic invasive shrubs have on the suitability of early-successional habitat for song birds. This project is being funded by a SURF (Summer Undergraduate Research Fellowship) provided by the Undergraduate Research Opportunities Program. I am working closely with Dr. Litvaitis and his graduate student, Jim Panaccione, who is also investigating the effects of invasive shrubs on shrubland birds. My project consists of measuring foraging efficiency and I am examining this by placing a video camera (in full camouflage to keep the blue jays away) on the nest of birds while they are feeding their nestlings. I then use these videos to measure the length of their foraging bouts and rate the quality (energy content) of the insects they bring back to feed their young. |
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| These data are then used to calculate foraging efficiency. My recording efforts are being concentrated on three warblers (chestnut-sided, yellow, and common yellowthroat) and are taking place on several sites that differ in their ratio of native to exotic shrubs. My goal is to determine if exotic shrubs (know to support fewer insects) reduce the ability of nesting birds to raise their young. |
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