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Symbiosis

, Volume 47, Issue 2, pp 77–83 | Cite as

Seasonal change in the structure of fig-wasp community and its implication for conservation

  • Rui-Wu WangEmail author
  • Baa-Fa Sun
Article

Abstract

Figs (Moraceae) and their pollinating wasps (Agaonidae) constitute a famous reciprocal mutualism in which figs provide some female flowers for the development of fig wasp offspring while the fig wasps pollinate fig flowers. However, figs also host many non-pollinating wasps which are either parasitoids or resource competitors of pollinators, and bring no benefit for figs and are detrimental to fig’ fitness. Our data onFicus racemosa in Xishuangbanna showed that the numbers of non-pollinators and the mature syconia without pollinator wasps increase in rainy season, especially in the highly fragmented forest. This might be because of the longer developing time of the syconia and thereby longer oviposition time to non-pollinators in the dry season. The galled flower and the viable seed percentages in dry seasons are also larger than in rainy seasons in both primary forest and fragmented forest, and the development of non-pollinators is mainly at the expense of pollinator wasps. Our results showed that there exists a discriminative seasonal impact of non-pollinators and fragmentation effects on population size of fig’s pollinators. This implies that fig/fig wasp mutualism is more fragile in dry season, and that the critical population size and breeding units of figs in seasonal area might be larger than previously estimated without considering the seasonal change of pollinator population.

Keywords

Fig tropical rain forest seasonal change community structure mutualism conservation 

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References

  1. Anstett, M.G., Bronstein, J.L., and Hossasert-McKey, M. 1996. Resource allocation: a conflict in the fig-fig wasp mutualism.Journal of Evolutionary Biology 9: 417–428.CrossRefGoogle Scholar
  2. Anstett, M.G., Michaloud, G., and Kjellberg, F. 1995. Critical population size for fig/fig wasp mutualism in a seasonal environment: Effect and devolution of the duration of female receptivity.Oecologia 103: 453–461.CrossRefGoogle Scholar
  3. Bronstein, J.L. 1989. A mutualism at the edge of its range.Experientia 45: 622–637.CrossRefGoogle Scholar
  4. Bronstein, J.L. 1991. The non-pollinating wasp fauna ofFicus Pertusa: exploitation of a mutualism?Oikos 61: 175–186.CrossRefGoogle Scholar
  5. Bronstein, J.L. 200I. The exploitation of mutualisms.Ecology Letters 4: 277–287.CrossRefGoogle Scholar
  6. Bronstein, J.L. and Hossasert-McKey, M. 1996. Variation in reproductive success within a subtropical fig/pollinator mutualism.Journal of Biogeography 23: 433–446.CrossRefGoogle Scholar
  7. Bronstein, J.L. and McKey, D. 1989. The fig/pollinator mutualism: A model system for comparative biology.Experientia 45: 601–604.CrossRefGoogle Scholar
  8. Bronstein, J.L., Gouyon, P.H., Gliddon, C; Kjellberg, F., and Michaloud, G. 1990. The ecological consequence of flowering asynchrony in monoecious figs: a simulation study.Ecology 71: 2145–2156.CrossRefGoogle Scholar
  9. Colinvaux, P. 1986.Ecology. John Wiley & Sons Press, USA. 480 pp.Google Scholar
  10. Compton, S.G. 1994. Pollinator limitation of fig tree reproduction on the island of Anak Krakatau (Indonesia).Biotropica 26: 180–186.CrossRefGoogle Scholar
  11. Compton, S.G. and Robertson, G. 1988. Complex interaction between mutualisms: ants ending Homopterans protect fig seeds and pollinators.Ecology 69: 1302–1305.CrossRefGoogle Scholar
  12. Comer, E.J.H. 1965. Check-list ofFicus in Asia and Australia with keys to identification.Garden’s Bulletin of Singapore 21: 1–186.Google Scholar
  13. Harrison, R. 2005. Figs and the diversity of tropical rain forests.Bioscience 55: 1053–1064.CrossRefGoogle Scholar
  14. Herre, E.A. 1989. Coevolution of reproductive characteristics in 12 species of New World figs and their pollinator wasps.Experientia 45: 637–647.CrossRefGoogle Scholar
  15. Herre, E.A. and West, S.A. 1997. Conflict of interest in a mutualism: documenting the elusive fig wasp-seed trade-off.Proceedings of the Royal Society London B 264: 1501–1507.CrossRefGoogle Scholar
  16. Janzen, D.H. 1979. How to be a fig.Annual Review of Ecology and Systematics 10: 13–51.CrossRefGoogle Scholar
  17. Joussellin, E., Hossaert-McKey, M., Herre, E.A., and Kjellberg, F. 2003. Why do fig wasps actively pollinate monoecious figs?Oecologia 134: 381–387.Google Scholar
  18. Kerdelhué, C. and Rasplus, J. y. 1996. Non-pollinating Afrotropical fig wasps affect the fig-pollinator mutualism inFicus within thesubgenusSycomorus.Oikos 75: 3–14.CrossRefGoogle Scholar
  19. Kerdelhué, C., Rossi, J.P., and Rasplus, J.Y. 2000. Comparative community ecology studies on old world figs and fig wasps.Ecology 81: 2832–2849.Google Scholar
  20. Kjellberg, F.E. and Maurice, S. 1989. Seasonality in reproductive phenology ofFicus: Its evolution and consequences.Experientia 45: 653–660.CrossRefGoogle Scholar
  21. Krebs, J.K. 1978.Ecology: The Experimental Analysis of Distribution and Abundance (second edition). Harper & Row. Inc., New York. USA. 495 pp.Google Scholar
  22. McKey, D. 1989. Population biology of figs: Application for conservation.Experientia 45: 661–673.CrossRefGoogle Scholar
  23. Nason, I.D., Herre, E.A., and Hamrick, J.L. 1998. The breeding structure of a tropical keystone plant resource.Nature 391: 685–687.CrossRefGoogle Scholar
  24. Primack, R.B. 1998.Essentials of Conservation Biology (second edition). Sinauer Associates, MA, USA. 325 pp.Google Scholar
  25. Shanahan, M., Harrison, R.D., Yamuna, R., Boen, W., and Thornton, W.B. 2005. Colonization of an island, Papua New Guinea, and an emergent island, Motrnot, in its caldera lake. V. Colonization by figs (Ficus spp.)., their dispersers and pollinators.Journal of Biogeography 28: 1365–1377.CrossRefGoogle Scholar
  26. Stephenson, A.G. 1981. Flower and fruit abortion: proximate causes and ultimate functions.Annual of Review of Ecology and Systematics 12: 253–279.CrossRefGoogle Scholar
  27. Stockwell, G.A., Hendry, A.P., and Kinnison, M.T 2003. Contemporary evolution meets conservation biology.Trends in Ecology and Evolution 18: 94–101.CrossRefGoogle Scholar
  28. Sun, B.L Wang, R. W., Hu, Z., and Li, Y.T 2008. The relation between two non-pollinating wasps oviposition and the fruit abscission onFicus racemosa. Acta Ecologica Sinica. In press.Google Scholar
  29. Sun, R.Y 1992.Essential of Animal Ecology (2nd edition). Beijing Normal University, Beijing. 345 pp.Google Scholar
  30. Thornton, L. W.B., Compton, S.G., and Wilson, C.N. 1996. The role of animal in the colonization of the Krakatau Islands by fig trees (Ficus species).Journal of Biogeography 23: 577–592.CrossRefGoogle Scholar
  31. Wang, R. W. and Zheng, Q. 2008. Structure of a figs wasp community: temporal segregation of oviposition and larval diets.Symbiosis 45: 113–116.Google Scholar
  32. Wang, R. W., Shi, L., Ai, S.M., and Zheng, Q. 2008. Trade-off between the reciprocal mutualists: local resource availability oriented interaction in fig/fig wasp mutualism.Journal of Animal Ecology 77: 616–623.CrossRefPubMedGoogle Scholar
  33. Wang, R. W., Yang, C. Y, Zhao, G.F., and Yang, J.X. 2005a. Fragmentation effects on diversity of wasp community and its impact on fig/fig wasp interaction inFicus racemosa.Journal ofIntegrative Plant Biology 47: 144–152.CrossRefGoogle Scholar
  34. Wang, R.W., Yang, J.X., and Yang, D.R. 2005b. Seasonal changes in the trade-off among the fig-supported wasps and viable seeds in figs and their evolutionary implications.Journal of Integrative Plant Biology 47: 144–155.CrossRefGoogle Scholar
  35. West, S.A. and Herre, E.A. 1994. The ecology of the New World fig-parasitizing wasps Idames and implications for the evolution of the fig-pollinator mutualism.Proceedings of the Royal Society London B 258: 67–72.CrossRefGoogle Scholar
  36. West, S.A., Herre, E.A., Windsor, D.M., and Green, P.R.S. 1996. The ecology and evolution of the New World non-pollinating fig wasp communities.Journal of Biogeography 23: 447–458.CrossRefGoogle Scholar
  37. Wiebes, J.T. 1979. Co-evolution of figs and their insect pollinators.Annual Review of Ecology and Systematics 10: 1–12.CrossRefGoogle Scholar
  38. Yang, C.Y., Wang, R.W., Zhao, G.F., and Yang, D.R. 2005. Diet of non-pollinator wasp and its impact on the fig-pollinator wasp mutualism.Zoology Research 26: 379–385.Google Scholar
  39. Yang, D.R., Wang, R.W., and Song, Q.S. 2000. Rule of seasonal changes of theCeratolen sp. in the tropical rainforest of Xishuangbanna, China.Forest Research 13: 477–484.Google Scholar
  40. Yang, D.R., Zhao, T.Z., Wang, R. W., Zhang, Q.M., and Son, Q.S. 2001. Study on pollination ecology of fig wasp (Ceratosolen sp.) in the tropical rainforest of Xishuangbanna.Zoology Research 22: 125–130.Google Scholar

Copyright information

© Springer 2009

Authors and Affiliations

  1. 1.Kunming Institute of ZoologyChinese Academy of SciencesKunming, YunnanChina
  2. 2.Biology DepartmentShantou UniversityShantou, GuangdongChina

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