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Variation in propagule mass and its effect on carbon assimilation and seedling growth of red mangrove (Rhizophora mangle) in Florida, USA

Published online by Cambridge University Press:  10 July 2009

Guanghui Lin  and
Leonel Da S. L. Sternberg
Guanghui Lin
Affiliation:
Department of Biology, University of Miami, Coral Gables, Florida 33124-0421, USA
Leonel Da S. L. Sternberg
Affiliation:
Department of Biology, University of Miami, Coral Gables, Florida 33124-0421, USA
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Abstract

We investigated the intraspecific variation in propagule mass within red mangrove (Rhizophora mangle) and its effect on carbon assimilation and seedling growth. Propagule sizes of red mangrove varied considerably at all three study sites along the south-eastern coast of Florida, with propagule fresh mass from 3.9 to 20.7 g for the scrub form and from 5.3 to 35.8 g for the tall form. Highly significant correlations were observed between propagule length and fresh weight at all three study sites and for two growth forms. The scrub form had significantly smaller propagules than the tall form. A greenhouse study showed that CO2 assimilation rates were not correlated with propagule mass, but total leaf area per plant increased significantly with increasing initial propagule mass in all three family lines of both the scrub and tall forms. Consequently, total carbon fixation rate by each seedling increased significantly with increasing propagule fresh weight in all cases, and the biomass increment significantly increased with increasing mass. Relative growth rate, however, was not correlated with propagule mass. The differences in leaf areas and biomass accumulation among seedlings from different sizes of propagules seem to have resulted from the differences in maternal reserve of hypocotyls. The considerable intraspecific variation in propagule size observed for red mangrove may have a significant effect on seedling growth and competitive ability.

Keywords

carbon fixationFloridamangrovemangrove propagulesRhizophora mangleseed size variationseedling establishment
Type
Research Article
Information
Journal of Tropical Ecology , Volume 11 , Issue 1 , February 1995 , pp. 109 - 119
Copyright
Copyright © Cambridge University Press 1995

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References

LITERATURE CITED

Beadle, C. L. 1985. Plant growth analysis. Pp. 20–25 in Coombs, J., Hall, D. O., Long, S. P. & Scurlock, J. M. O. (eds). Techniques in bioproductivity and photosynthesis, 2nd edition. Pergamon Press, New York. 298 pp.CrossRefGoogle Scholar
Chapin, F. S., Groves, R. H. & Evans, L. T. 1989. Physiological determinants of growth rate in response to phosphorus supply in wild and cultivated Hordeum species. Oecologia 79:96–105.CrossRefGoogle ScholarPubMed
Clough, B. F. 1984. Growth and salt balance of the mangroves, Auicennia mariana (Forsk.). Hierh. and Rhizophora stylosa Griff, in relation to salinity. Australian Journal of Plant Physiology 11:419–430.Google Scholar
Gross, K. L. 1984. Effects of seed size and growth form on seedling establishment of six monocarpic perennial plants. Journal of Ecology 72:369–387.CrossRefGoogle Scholar
Gross, K. L. & Werner, P. A. 1982. Colonizing abilities of ‘biennial’ plant species in relation to ground cover: implication for their distributions in a successional sere. Ecology 63:921–931.CrossRefGoogle Scholar
Harper, J. L. 1977. Population biology of plants. Academic Press, London.Google Scholar
Harper, J. L. & White, J. 1974. The demography of plants. Annaul Review of Ecology and Systematics 5:419–463.CrossRefGoogle Scholar
Hutchings, P. & Saenger, P. 1987. Ecology of mangroves. University of Queensland Press, St Lucia. 388 pp.Google Scholar
Lin, G. & Sternberg, L. Da S. L. 1992a. Differences in morphology, carbon isotope ratios, and photosynthesis between scrub and fringe mangroves in Florida, USA. Aquatic Botany 42:303–313.CrossRefGoogle Scholar
Lin, G. & Sternberg, L. Da S. L. 1992b. Effects of growth form, salinity, nutrient, and sulfide on photosynthesis, carbon isotope discrimination and growth of red mangrove (Rhizophora mangle L.). Australian Journal of Plant Physiology 19:509–517.Google Scholar
Lugo, A. E. & Snedaker, S. C. 1974. The ecology of mangroves. Annual Review of Ecology and Systematics 5:39–64.CrossRefGoogle Scholar
Mazer, S. J. 1987. The quantitative genetics of life history and fitness components in Raphanus raphanistrum L. (Brassicaceae): ecological and evolutionary consequences of seed-weight variation. American Naturalist 130:891–914.CrossRefGoogle Scholar
Marshall, D. L. 1986. Effect of seed size on seedling success in three species of Sesbania (Fabaceae). American Journal of Botany 73:457–464.CrossRefGoogle Scholar
Rabinowitz, D. 1978a. Dispersal properties of mangrove propagules. Biotropica 10:47–57.CrossRefGoogle Scholar
Rabinowitz, D. 1978b. Early growth of mangrove seedlings in Panama, and a hypothesis concerning the relationships of dispersal and zonation. Journal of Biogeography 5:113–133.CrossRefGoogle Scholar
Rabinowitz, D. 1978c. Mortality and initial propagule size in mangrove seedlings in Panama. Journal of Ecology 66:45–51.CrossRefGoogle Scholar
Saenger, P. 1982. Morphological, anatomical and reproductive adaptations of Australian mangroves. Pp. 153–191 in Clough, B. F. (ed.). Mangrove ecosystems in Australia. Australian National University Press, Canberra. 302 pp.Google Scholar
Snedaker, S. C. 1982. Mangrove species zonation: why? Pp. 111–125 in Sen, D. N. & Raipurohit, K. S. (eds). Contribution to the ecology of halophytes. Dr W. Junk Press, The Hague. 272 pp.CrossRefGoogle Scholar
Stanton, M. L. 1984. Seed variation in wild radish: effect of seed size on components of seedling and adult fitness. Ecology 65:1105–1112.CrossRefGoogle Scholar
Teas, H. J. & Handler, H. S. 1979. Notes on the pollination biology of Rhizophora mangle L. Proceedings of International Symposium on Marine Biogeogaphy and Evolution in the Southern Hemisphere 2:357–361.Google Scholar
Temme, D. H. 1986. Seed size variability: a consequence of variable genetic quality among offspring? Evolution 40:414–417.CrossRefGoogle ScholarPubMed
Tomlinson, P. B. 1986. The botany of mangroves. Cambridge University Press. New York. 413 pp.Google Scholar
Tompson, J. N. 1984. Variation among individual seed masses in Lomatium grayi (Umbelliferae) under controlled conditions: magnitude and partitioning of the variance. Ecology 65:626–631.CrossRefGoogle Scholar
Zammit, C. & Zedler, P. H. 1990. Seed yield, seed size and germination behavior in the annual Pogogyne abramsii. Oecologia 84:24–28.CrossRefGoogle ScholarPubMed