Hoch, Peter , Miller-Struttmann, Nicole , Krakos, Kyra .
Phenological change and impacts on pollination biology.
In order to understand the impacts of human-influenced environmental changes, we have established a long-term floral phenology study in glade, forest, and prairie communities at the Shaw Nature Reserve (SNR) in eastern Missouri, using as a starting point a dataset on flowering at the site developed by Edgar Anderson in 1937-1942 and added to discontinuously since then. Based on this historical record and three years of complete recent observations, we will present analyses documenting both shifts in phenology and more prolonged periods of flowering for many species, especially in the latter part of the season. This extended flowering has led to a 2.5-fold increase in co-blooming species in some communities, with unknown impacts on the pollination biology of those communities. We will discuss these impacts and summarize on-going efforts to analyze the pollination ecology of these communities through intensive pollination studies of selected species, coupled with site-specific micro-climatic monitoring to further refine our understanding. We specifically seek to clarify if specialist and generalist pollinators respond differently to these changes.
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1 - Missouri Botanical Garden, P.O. Box 299, St. Louis, MO, 63166, USA
2 - University of Missouri - Columbia, Department of Biology, Tucker 217, Columbia, MO, 65211, USA
3 - Maryville University, Department of Biology, 13550 Conway Rd., St. Louis, MO, 63141, USA
Presentation Type: Oral Paper:Papers for Topics
Location: Delaware D/Hyatt
Date: Wednesday, July 11th, 2012
Time: 4:15 PM