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Dr Randy MitchellProfessorOffice: ASEC 177
Email: rjm2
Phone: (330) 972-5122
Lab Website |
Research Interests
My main research interest is in the evolutionary ecology of plant pollinator interactions, focusing on how plant mating patterns and success are affected by pollinator behavior and abundance. This work utilizes a broad array of field, genetic, statistical, histological, horticultural, imaging, and modeling approaches, drawing from many disciplines in and out of biology. Some of my projects have direct or indirect implications for conservation efforts and management of endangered or invasive species. My current projects focus on mating systems in a native wildflower (in collaboration with Jeff Karron at University of Wisconsin Milwaukee), and on grassland pollination. I also act as director of the Bath Nature Preserve.Education1987-1991 Ph.D. Biology. University of California Riverside Department of Biology . DIssertation: "Adaptive significance of floral nectar production rate for the hummingbird-pollinated plant Ipomopsis aggregata." Advisor: Dr. Nickolas M. Waser.
M.A. -Biology. University of California Riverside Department of Biology. Thesis: "Mechanisms of competition for pollination between two Colorado wildflowers." Advisor: Dr. Nickolas M. Waser
B.S. Entomology. University of California, Davis.Selected PublicationsMichaels HJ, XJ Shi, RJ Mitchell. Effects of population size on performance and inbreeding depression in Lupinus perennis. Oecologia 154:651-661.
2006. Karron, JD, RJ Mitchell, JM Bell. Multiple pollinator visits to Mimulus ringens (Phrymaceae) flowers increase mate number and seed set within fruits. American Journal of Botany. 93: 1306-1312.
2005. Mitchell, RJ, JD Karron, KG Holmquist, JM. Bell. Patterns of multiple paternity in fruits of Mimulus ringens (Phrymaceae). American Journal of Botany. 92:885-890
2005. Knight, TM, J. Steets, RJ Mitchell, M Johnston, M Burd, M. Dudash, S. Mazer, T-L Ashman. Pollen limitation of plant reproduction: pattern and process. Annual Review of Ecology, Evolution, and Systematics. 36:467-497
2005. Shi, XJ, HJ Michaels, RJ Mitchell. Effects of self-pollination and maternal resources on reproduction and offspring performance in the wild lupine, Lupinus perennis (Fabaceae). Sexual Plant Reproduction 18:55-64
2005. Bell, JM, JD Karron, RJ Mitchell. Interspecific competition for pollination lowers seed production and outcrossing in Mimulus ringens. Ecology 86: 762-771.
2004 Mitchell, RJ. Heritability of nectar traits: why do we know so little? Ecology 85:1527-1533. (Invited paper for Special Feature on Community and Evolutionary Ecology of Nectar). |
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