Oral Session #6: Pollination Ecology.

Presiding: H.A. Petrillo, Northern Arizona University.
Sunday, August 6, 2000
8:00 AM to 12:00 PM
Cottonwood Room II - Sports Event Center

8:00 AM	Advantage to long-distance pollination in Leuhea seemannii, a tropical pioneer tree. DAVIDSON, J.M.
8:15 AM	Depressed pollination in habitat fragments causes low fruit set. CUNNINGHAM, S.A.
8:30 AM	Pollination of Bombax ceiba by bats, birds and bees. MISTRY, S.
8:45 AM	The effects of soil nitrogen on amino acid composition of floral nectar. GARDENER, M.C. , M.P. GILLMAN, J. SILVERTOWN
9:00 AM	Pollination biology of saw palmetto (Serenoa repens: Palmae) in southwestern Florida. CARRINGTON, M.E. , T.D. GOTTFRIED, J.J. MULLAHEY
9:15 AM	Pollination ecology of claret-cup cactus across a latitude gradient: Effects of pollinator variation on floral characters. SCOBELL, S.A. , P.E. SCOTT, R.S. LANGE
9:30 AM	Temporal dioecism in a prairie species: The case of Eryngium yuccifolium Michx (Apiaceae). MOLANO-FLORES, B.
9:45 AM	The effects of nectar-robbing bumblebees on hummingbird-foraging behavior and pollen flow in Lpomopsis aggregata. IRWIN, R.E.
10:00 AM	Break
10:15 AM	Pollination success and plant population size: How strong are the links? WASER, N.M. , M.V. PRICE, A.K. BRODY and D.R. CAMPBELL
10:30 AM	How do so many Clarkia coexist? The influence of population size and sympatric Clarkia species on pollinator availability and reproductive success in Clarkia xantiana. MOELLER, D.A.
10:45 AM	Evolutionary ecology of a petal-spot polymorphism in Clarkia xantiana ssp. xantiana (Onagraceae): Floral landmarks affect herbivore resistance, not pollinator visitation. ECKHART, V.M. , J.D. HANSEN, C.M. LA GRANGE and E.N. TWIEG
11:00 AM	Exotic plant species and native pollinators: Implications for native biodiversity. SIMONSON, S. , G.W. CHONG, T.J. STOHLGREN
11:15 AM	California mainland vs. Channel Island pollination of Nicotiana glauca (Solanaceae): An invasive hummingbird-pollinated plant . SCHUELLER, S.K.
11:30 AM	The effect of stress on inbreeding depression in Cucurbita texana. HAYES, N. , J.A. WINSOR, A.G. STEPHENSON
11:45 AM	Selective seed abortion increases offspring survival in Cynoglossum officinale (Boraginaceae). MELSER, C. , P.G.L. KLINKHAMER