Abstract
This study investigates dioecious fig species using a pollinator introduction experiment. Our aims were to determine: (1) whether there was a significant difference in foundress distribution between sexes per fig species; (2) whether fig size and foundress number affect reproductive success of dioecious figs; and (3) who is the ‘controlling partner’ in the fig/pollinator mutualism. Three dioecious fig species: Ficus semicordata, Ficus hispida and Ficus tinctoria from Xishuangbanna, China, were selected for this experiment. We found that there was no significant difference of the foundress number in female and male figs of F. semicordata, F. hispida and F. tinctoria. Also, the foundress number did not depend on the fig diameter. The numbers and the proportions of fig seeds and female wasp offspring significantly increased with more foundresses; and fig seed number was significantly higher than female wasp offspring in F. semicordata and F. hispida, but not in F. tinctoria. Our results indicate that figs are generally the ‘controlling partner’ in fig-wasp mutualisms in species with large figs, but not with small figs. Compared with published studies of reproductive success in monoecious figs, the dioecious figs seem to be more efficient in producing both seeds and wasp offspring when there is a high number of foundress.
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References
Anstett MC, Bronstein JL, Hossaert-McKey MH (1996a) Resource allocation: A conflict in the fig-fig wasp mutualism. Journal of Evolutionary Biology 9:417–428
Anstett MC, Kjellberg F, Bronstein JL (1996b) Waiting for wasps: consequences for the pollination dynamics of Ficus pertusa L. Journal of Biogeography 23:459–466
Anstett MC, Hossaert-McKey MH, Kjellberg F (1997) Figs and fig pollinators: evolutionary conflicts in a coevolved mutualism. Trends in Ecology and Evolution 12:94–99
Bai LF, Yang DR, Shi ZH, Peng YQ, Zhai SW (2006) Community structure of fig wasp in Ficus benjamina in different habitats. Biodiversity Science 14:340–344 in Chinese
Berg CC (2003) Flora Malesiana precursor for the treatment of Moraceae 1: the main subdivision of Ficus: the subgenera. Blumea 48:167–178
Bronstein JL (1989) A mutualism at the edge of its range. Experientia 45:622–637
Bronstein JL (1992) Seed predators as mutualists: ecology and evolution of the fig/pollinator interaction. In: Bernays E (ed) Insect-Plant Interactions, vol 4. CRC Press, Boca Raton, FL, USA, pp 1–44
Bronstein JL (1998) Limits to fruit production in a monoecious fig: consequences of an obligate mutualism. Oikos 48:39–46
Compton SG, Hawkins BA (1992) Determinants of species richness in southern African fig wasp assemblages. Oecologia 91:68–74
Corlett RT, Boudville V, Seet K (1990) Seed and wasp production in five fig species (Ficus, Moraceae). Malayan Nature Journal 44:97–102
Frank SA (1985) Hierarchical selection theory and sex ratios. II. On applying the theory, and testing with fig wasps. Evolution 39:949–964
Grafen A, Godfray HCJ (1991) Vicarious selection explains some paradoxes in dioecious fig-pollinator systems. Proceedings of the Royal Society of London Series B 245:73–76
Hamilton WD (1979) Wingless and fighting males in fig wasps and other insects. In: Blum MS, Blum NA (eds) Sexual Selection and Reproductive Competition in Insects. Academic Press, London, UK, pp 167–220
Harrison RD, Yamanura N (2003) A few more hypotheses for the evolution of dioecy in figs (Ficus, Moraceae). Okios 100:628–635
Hawkins BA, Compton SG (1992) African fig wasps communities: undersaturation and latitudinal gradients in species richness. Journal of Animal Ecology 61:361–372
Herre FA (1985) Sex ratio adjustment in fig wasps. Science 228:896–898
Herre EA (1989) Coevolution of reproductive characteristics in 12 species of New World figs and their pollinator wasps. Experientia 45:637–47
Herre EA (1996) An overview of studies on a community of Panamanian figs. Journal of Biogeography 23:593–607
Herre EA, West SA (1997) Conflict of interest in a mutualism, documenting the elusive fig wasp-seed tradeoff. Proceedings of the Royal Society of London Series B 264:1501–1507
Janzen DH (1979) How to be a fig. Annual Review of Ecology and Systematics 10:13–51
Jousselin E, Hossaert-McKey M, Vernet D, Kjellberg F (2001) Egg deposition patterns of fig pollinating wasps: implications for studies on the stability of the mutualism. Ecological Entomology 26:602–608
Kerdelhue C, Rasplus JY (1996) The evolution of dioecy among Ficus (Moraceae), an alternative hypothesis involving non-pollinating fig wasp pressure in the fig-pollinator mutualism. Okios 77:163–166
Kjellberg F, Gouyon PH, Ibrahim M, Raymond M, Valdeyron G (1987) The stability of the symbiosis between dioecious figs and their pollinators: a study of Ficus carica L. and Blastophaga psenes L. Evolution 41:693–704
Ma WJ, Yang DR, Peng YQ (2009) Disturbance effects on community structure of Ficus tinctoria fig wasps in Xishuangbanna, China: implications for the fig/fig wasp mutualism. Insect Science 16:417–424
Nefdt RJC, Compton SG (1996) Regulation of seed and pollinator production in the fig-fig wasp mutualism. Journal of Animal Ecology 65:170–182
Patel A, Hossaert-McKey M (2000) Components of reproductive success in two dioecious fig species, Ficus exasperata and Ficus hispida. Ecology 81:2850–2866
Peng YQ, Yang DR, Duan DB, Deng XB (2005) Reproductive components of Ficus hispida and its pollinator. Acta Phytoecologica Sinica 29:793–798 (in Chinese)
Verkerke W (1989) Structure and function of the fig. Experientia 45:612–622
Wang RW, Yang CY, Zhao GF, Yang JX (2005) Fragmentation effects on diversity of wasp community and its impact on fig/fig wasp interaction in Ficus racemosa L. Journal of Integrative Plant Biology 47:20–26
Weiblen G, Flick B, Spencer H (1995) Seed set and wasp production in dioecious Ficus variegate from an Australian wet tropical forest. Biotropica 27:391–394
Weiblen GD, Yu DW, West SA (2001) Pollination and parasitism in functionally dioecious figs. Proceedings of the Royal Society of London Series B 268:651–659
West SA, Herre EA, Windson DM, Green PRS (1996) The ecology and evolution of the New World non-pollinating fig wasp communities. Journal of Biogeography 23:447–458
Zhou ZK, Gilbert MG (2003) Moraceae. In: Wu ZY, Hong DY, Yang QE (eds) Flora of China. Science Press, Beijing, pp 42–45
Xu L, Yang DR, Peng YQ, Wang QY, Zhang GM (2002) The community structure and the interspecific relationship of the fig wasps in figs of Ficus racemosa L. in Xishuangbanna. China. Acta Ecology Sinica 23:1554–1560 in Chinese
Yang DR, Wang RW, Song QS (2000) Rule of seasonal changes of the Ceratolen sp. in the tropical rainforest of Xishuangbanna. China. Forest Research 13:477–484 in Chinese
Yang DR, Peng YQ, Song QS, Zhang GM, Wang RW, Zhao TZ, Wang QY (2002) Pollination biology of Ficus hispida in the tropical rainforests of Xishuangbanna, China. Acta Botanica Sinica 44:519–526
Yu H, Zhao NX, Chen YZ, Herre EA (2008) Male and female reproductive success in the dioecious fig, Ficus hirta Vahl. in Guangdong Province, China: Implication for the relative stability of dioecy and monoecy. Symbiosis 45:121–127
Zhu H, Cai L (2005) The biogeography of tropical rainforest in Yunnan Province and its suggestions to the geological history. Advanced Earth Sciences 20:1–57 in Chinese
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Ma, W.J., Peng, Y.Q., Yang, DR. et al. Coevolution of reproductive characteristics in three dioecious fig species and their pollinator wasps. Symbiosis 49, 87–94 (2009). https://doi.org/10.1007/s13199-009-0018-x
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DOI: https://doi.org/10.1007/s13199-009-0018-x
Keywords
- Dioecious figs
- female wasp offspring
- seeds
- foundress distribution
- reproduction success