Why do bilaterally symmetrical flowers orient vertically? Flower orientation influences pollinator landing behaviour

Evolutionary Ecology Research

Volumn 7, Issue 1, 2005, Pages 151-160

  Ushimaru, Atushi ^a   Hyodo, Fujio ^a  

^a RESEARCH INSTITUTE FOR HUMANITY AND NATURE   (Japan)

Author keywords

Commelina communis; Field experiment; Flower orientation; Pollinator landing; Zygomorphic flower

Indexed keywords

EID: 14844348042     PISSN: 15220613     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (26)

1. Cruden, R.W. 1977. Pollen-ovule ratio: a conservative indicator of breeding system in flowering plants. Evolution, 31: 32-46.
2. Dafni, A. 1994. Note on side advertisement in flowers. Funct. Ecol., 8: 136-138.
3. Galen, C. and Stanton, M.L. 2003. Sunny-side up: flower heliotropism as a source of parental environmental effects on pollen quality and performance in the snow buttercup, Ranunculus adoneus (Ranunculaceae). Am. J. Bot., 90: 724-729.
4. Giurfa, M., Dafni, A. and Neal, P.R. 1999. Floral symmetry and its role in plant-pollinator systems. Int. J. Plant Sci., 160: S41-S50.
5. Hocking, B. and Sharplin, C.D. 1965. Flower basking by arctic insects. Nature, 206: 215.
6. Hodges, S.A., Whittall, J.B., Fulton, M. and Yang, J.Y. 2002. Genetics of floral traits influencing reproductive isolation between Aquilegia formosa and Aquilegia pubescens. Am. Nat., 159: S51-S60.
7. Huang, S.-Q., Takahashi, Y. and Dafni, A. 2002. Why does the flower stalk of Pulsatilla cernua (Ranunculaceae) bend during anthesis? Am. J. Bot., 89: 1599-1603.
8. Inouye, D.W. 1980. The terminology of floral larceny. Ecology, 61: 1251-1253.
9. Irvin, R.E. and Maloof, J.E. 2002. Variation in nectar robbing over time, space, and species. Oecologia, 133: 525-533.
10. Kevan, P.G. 1975. Sun-tracking solar furnaces in high arctic flowers: significance for pollination and insects. Science, 189: 723-726.
11. Kobayashi, S., Inoue, K. and Kato, M. 1997. Evidence of pollen transfer efficiency as the natural selection factor favoring a large corolla of Campanula punctata pollinated by Bombus diversus. Oecologia, 111: 535-542.
12. Kudo, G. 1995. Ecological significance of flower heliotropism in the spring ephemeral Adonis ramosa (Ranunculaceae). Oikos, 72: 14-20.
13. Lunau, T.D.K. 2000. The ecology and evolution of visual pollen signals. Plant Syst. Evol., 222: 89-111.
14. Mahoro, S. 2003. Effects of flower and seed predators and pollinators on fruit production in two sequentially flowering congeners. Plant Ecol., 166: 37-48.
15. Maloof, J.E. and Inouye, D.W. 2000. Are nectar robbers cheaters or mutualistis? Ecology, 81: 2651-2661.
16. Morita, T. and Nigorikawa, T. 1999. Phenotypic plasticity of floral sex. In Natural History of Flowers (M. Ohara, ed.), pp. 227-242. Sapporo: Hokkaido University Press (in Japanese).
17. Neal, P.R., Dafni, A. and Giurfa, M. 1998. Floral symmetry and its role in plant-pollinator systems: terminology, distribution, and hypotheses. Annu. Rev. Ecol. Syst., 29: 345-373.
18. Patino, S., Jeffree, C. and Grace, J. 2002. The ecological role of orientation in tropical convolvulaceous flowers. Oecologia, 130: 373-379.
19. Rice, W.R. 1989. Analyzing tables of statistical tests. Evolution, 43: 223-225.
20. Tadey, M. and Aizen, M.A. 2001. Why do flowers of a hummingbird- pollinated mistletoe face down? Funct. Ecol., 15: 782-790.
21. Tanaka, H. 1978. Pollination of Commelina communis. Saisyu to Shiiku, 40: 646-647.
22. Tinoco-Ojanguren, C. and Monlina-Freaner, F. 2000. Flower orientation in Pachycereus pringlei. Can. J. Bot., 78: 1489-1494.
23. Ushimaru, A., Itagaki, T. and Ishii, H.S. 2003a. Variation in floral organ size depends on function: a test with Commelina communis, an andromonoecious species. Evol. Ecol. Res., 5: 615-622.
24. Ushimaru, A., Itagaki, T. and Ishii, H.S. 2003b. Floral correlations in an andromonoecious species, Commelina communis (Commelinaceae). Plant Sp. Biol., 18: 103-106.
25. Waser, N.M. and Price, M.V. 1983. Pollinator behaviour and natural selection for flower colour in Delphinium nelsonii. Nature, 302: 422-424.
26. Waser, N.M. and Price, M.V. 1985. The effect of nectar guides on pollinator preference: experimental studies with a montane herb. Oecologia, 67: 121-126.