Interspecific pollen loss by hummingbirds visiting flower mixtures: effects of floral architecture

Grant, V. 1949. Pollination systems as isolating mechanisms in angiosperms. Evolution 3:82-97.

Grant, V., and K. A. Grant. 1965. Flower pollination in the phlox family. Columbia University Press, New York, New York, USA.

Haber, W. A. 1991. Lista provisional de las plantas de Monteverde, Costa Rica. Brenesia 34:63-120.

Herrera, C. M. 1993. Selection on floral morphology and environmental determinants of fecundity in a hawk moth-pollinated violet. Ecological Monographs 63:251-275.

Heske, E. J., J. H. Brown, and S. Misty. 1994. Long-term experimental study of a Chihuahuan Desert rodent community: 13 years of competition. Ecology 75:438-445.

Howell, D. J. 1977. Time sharing and body partitioning in bat-plant pollination systems. Nature 270:509-510.

Kodric-Brown, A., J. H. Brown, G. S. Byers, and D. F. Gori. 1984. Organization of a tropical island community of hummingbirds and flowers. Ecology 65:1358-1368.

Kohn, J. R., and N. M. Waser. 1985. The effect of Delphinium nelsonii pollen on seed set in Ipomopsis aggregata, a competitor for hummingbird pollination. American Journal of Botany 72:1144-1148.

Leppik, E. E. 1972. Origin and evolution of bilateral symmetry in flowers. Evolutionary Biology 5:49-85.

Lertzman, K. P., and C. L. Gass. 1983. Alternative models of pollen transfer. Pages 474-489 in C. E. Jones and R. J. Little, editors. Handbook of experimental pollination ecology. Van Nostrand Reinhold, New York, New York, USA.

Levin, D. A. 1978. The origin of isolating mechanisms in flowering plants. Evolutionary Biology 11:185-317.

Macior, L. W. 1982. Plant community and pollinator dynamics in the evolution of pollination mechanisms in Pedicularis (Scrophulariaceae). Pages 29-45 in J. A. Armstrong, J. M. Powell, and A. J. Richards, editors. Pollination and evolution. Royal Botanic Gardens, Sydney, Australia.

McGuire, A.D. 1993. Interactions for pollination between two synchronously blooming Hedysarum species (Fabaceae) in Alaska. American Journal of Botany 80:147-152.

McGuire, A.D., and W. S. Armbruster. 1991. An experimental test for reproductive interactions between two sequentially blooming Saxifraga species. American Journal of Botany 78:214-219.

Murcia, C. 1990. Effect of floral morphology and temperature on pollen receipt and removal in Ipomoea trichocarpa. Ecology 71:1098-1109.

Murray, G. K., P. Feinsinger, W. H. Busby, Y. B. Linhart, J. H. Beach, and S. Kinsman. 1987. Evaluation of character displacement among plants in two tropical pollination guilds. Ecology 68:1283-1293.

Nilsson, L. A. 1988. The evolution of flowers with deep corolla tubes. Nature 334:147-149.

Podolsky, R. D. 1992. Strange floral attractors: pollinator attraction and the evolution of plant sexual systems. Science 258:791-793.

-----. 1993. Evolution of a flower dimorphism: how effective is pollen dispersal by "male" flowers? Ecology 74:2255-2260.

Rathcke, B. J. 1983. Competition and facilitation among plants for pollination. Pages 305-329 in L. A. Real, editor. Pollination biology. Academic Press, New York, New York, USA.