Advertisement

Oecologia

, Volume 61, Issue 1, pp 109–114 | Cite as

Interactions in the patterns of vegetative growth and reproduction in woody dioecious plants

  • A. J. Hoffmann
  • M. C. Alliende
Original Papers

Summary

Interactions between vegetative growth and reproduction were evaluated in Peumus boldus, Lithraea caustica and Laretia acaulis, three woody dioecious species in central Chile. Phenological observations were made periodically on marked branches of male and female plants, and biomass allocation (dry weight) to vegetative and reproductive tissues was measured. The magnitude of flowering was evaluated in groups of plants in three successive seasons. The patterns of activities are species- and sex-dependent, and cycles of 2–4 years have been established. Branches that produce flowers either do not grow or grow less than branches without flowers, and males and females have differential resource allocation: male branches attain higher biomass values. Groups of plants show seasonal behavior that suggest synchrony in their reproductive activities.

Keywords

Biomass Resource Allocation Vegetative Growth High Biomass Biomass Allocation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Arroyo MTK, Armesto JJ, Villagrán C (1981) Plant phenological patterns in the high Andean cordillera of central Chile. J Ecol 69:205–223Google Scholar
  2. Arroyo MTK, Primack R, Armesto JJ (1982) Community studies in pollination ecology in the high temperate Andes of central Chile. I. Pollination mechanisms and altitudinal variation. Am J Bot 69:82–97Google Scholar
  3. Beattie AJ, Breedlove DE, Ehrlich PR (1973) The ecology of the pollinators and predators of Frasera speciosa. Ecology 54:81–91Google Scholar
  4. Cox PA (1981) Niche partitioning between sexes of dioecious plants. Am Nat 117:295–307Google Scholar
  5. Freeman DC, Klikoff LG, Harper KT (1976) Differential resource utilization by the sexes of dioecious plants. Science 193:596–599Google Scholar
  6. Godley EJ (1964) Breeding systems in Zew Zealand plants. 3. Sex ratios in some natural populations. N Z J Bot 2:205–212Google Scholar
  7. Grant MC, Mitton JB (1979) Elevational gradients in adult sex ratio and sexual differentiation in vegetative growth rates of Populus tremuloides. Evolution 33:914–918Google Scholar
  8. Harper JL (1977) Population biology of plants. Academic Press, LondonGoogle Scholar
  9. Harper JL, Ogden J (1970) The reproductive strategy of higher plants. The concept of strategy with special reference to Senecio vulgaris L. J Ecol 58:681–698Google Scholar
  10. Hoffmann AJ (1981) Seasonal growth rhythms in Peumus boldus, a dioecious tree of the Chilean mediterranean vegetation. Oecol Plant 2:31–39Google Scholar
  11. Janzen DH (1971) Escape of juvenile Dioclea megacarpa vines from predators in a deciduous tropical forest. Am Nat 105:97–112Google Scholar
  12. Lloyd DG (1973) Sex ratios in sexually dimorphic Umbelliferae. Heredity 31:239–249Google Scholar
  13. Lloyd DG (1974) Female predominant sex ratios in angiosperms. Heredity 32:35–44Google Scholar
  14. Lloyd DG, Webb CJ (1977) Secondary sex characters in seed plants. Bot Rev 43:177–216Google Scholar
  15. Lovett-Doust J (1980) A comparative study of life history and resource allocation in selected Umbelliferae. Biol J Linn Soc 13:139–154Google Scholar
  16. Meagher TR, Antonovics J (1982) The population biology of Chamaelirium luteum, a dioecious member of the lily family: life history studies. Ecology 63:1690–1700Google Scholar
  17. Melampy MN, Howe HF (1977) Sex ratio in the tropical tree Triplaris americana (Polygonaceae). Evolution 31:867–872Google Scholar
  18. Moldenke AR (1977) Insect-plant relations. In: Thrower NJW, Bradbury DE (eds) Chile-California Mediterranean Scrub Atlas. A comparative analysis. US/IBP Synthesis Series 2. Dowden, Hutchinson & Ross Inc. Stroudsburg. Pennsylvania, pp 199–217Google Scholar
  19. Mooney HA, Parsons DJ, Kummerow J (1974) Plant development in mediterranean climates. In: Lieth E (ed) Phenology and seasonality modeling. Springer-Verlag, New York, pp 255–268Google Scholar
  20. Onyekwelu SS, Harper JL (1979) Sex ratio and niche differentation in spinach (Spinacia oleracea). Nature 282:609–611Google Scholar
  21. Opler PA, Bawa KS (1978) Sex ratios in tropical forest trees. Evolution 32:812–21Google Scholar
  22. Putwain PD, Harper JL (1972) Studies in the dynamics of plant populations V. Mechanisms governing the sex ratios in Rumex acetosa and R. acetosella. J Ecol 60:113–129Google Scholar
  23. Silvertown JW (1980) The evolutionary ecology of mast seeding in trees. Biol J Linn Soc 14:235–250Google Scholar
  24. Wallace CS, Rundel PW (1979) Sexual dimorphism and resource allocation in male and female shrubs of Simmondsia chinensis. Oecologia 44:34–40Google Scholar

Copyright information

© Springer-Verlag 1984

Authors and Affiliations

  • A. J. Hoffmann
    • 1
  • M. C. Alliende
    • 1
  1. 1.Laboratorio de Botánica, Facultad de Ciencias BiológicasPontificia Universidad Católica de ChileSantiagoChile

Personalised recommendations