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Burial and secondary dispersal of small seeds in a tropical forest

Published online by Cambridge University Press:  01 November 2008

Toby R. Marthews ,
Christopher E. Mullins ,
James W. Dalling  and
David F. R. P. Burslem
Toby R. Marthews*
Affiliation:
School of Biological Sciences, University of Aberdeen, Aberdeen AB24 3UU, UK
Christopher E. Mullins
Affiliation:
School of Biological Sciences, University of Aberdeen, Aberdeen AB24 3UU, UK
James W. Dalling
Affiliation:
Department of Plant Biology, University of Illinois, Urbana-Champaign, IL 61801, USA
David F. R. P. Burslem
Affiliation:
School of Biological Sciences, University of Aberdeen, Aberdeen AB24 3UU, UK
*
1Corresponding author. Email: [email protected]
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Abstract:

Secondary dispersal is an important stage in the life cycle of tree species, determining the fate of a high proportion of all seeds. For small-seeded species both physical and biological processes may influence the secondary fate of seeds, however the relative importance of these processes is not well known. Seeds of the pioneer tree species Cecropia insignis (seed mass 0.5 mg), Trema micrantha (2.5 mg) and Apeiba aspera (14.2 mg) and five types of artificial seed were sown in understorey, treefall-gap and large-gap sites on Barro Colorado Island, Panama, during the wet season of 2005. Sowing areas were excavated after periods up to 26 d and cores divided into depths of 0–5, 5–10, 10–20 and 20–50 mm to allow high-resolution estimation of the rate and amount of burial and displacement of seeds. Over 26 d, 2.8% of artificial seeds were buried to a mean depth of 10.5 mm below the soil surface and 43.9% of unburied seeds displaced laterally >5 cm. Significantly more (87.9% and 80.9%) seeds of Cecropia insignis and Trema micrantha were displaced than artificial seeds of similar mass, size and density. A generalised linear model suggested that burial mostly occurred within 15 d, while displacement occurred continuously up to 26 d. The dominant cause of displacement and burial was probably rainfall, while seed removal by ants may also have contributed to displacement.

Keywords

Barro Colorado IslandbeadsgapslitterPanamapioneer treespredationraindrop impactrain splashseed dynamics
Type
Research Article
Information
Journal of Tropical Ecology , Volume 24 , Issue 6 , November 2008 , pp. 595 - 605
Copyright
Copyright © Cambridge University Press 2008

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References

LITERATURE CITED

ALVAREZ-BUYLLA, E. R. & MARTÍNEZ-RAMOS, M. 1990. Seed bank versus seed rain in the regeneration of a tropical pioneer tree. Oecologia 84:314–325.Google Scholar
ANDRESEN, E. & FEER, F.. 2005. The role of dung beetles as secondary seed dispersers and their effect on plant regeneration in tropical rainforests. Pp. 331–349 in Forget, P., Lambert, J. E., Hulme, P. E. & Vander Wall, S. B. (eds.). Seed fate. CABI Publishing, Wallingford. 426 pp.Google Scholar
BROKAW, N. V. L. 1982. The definition of treefall gap and its effect on measures of forest dynamics. Biotropica 14:158–160.Google Scholar
BROKAW, N. & BUSING, R. T. 2000. Niche versus chance and tree diversity in forest gaps. Trends in Ecology & Evolution 15:183–188.Google Scholar
BRUIJNZEEL, L. A. 1989. Nutrient cycling in moist tropical forests: the hydrological framework. Pp. 383–415 in Proctor, J. (ed.). Mineral nutrients in tropical forest and savanna ecosystems. Blackwell, Oxford. 480 pp.Google Scholar
COMITA, L. S., AGUILAR, S., PÉREZ, R., LAO, S. & HUBBELL, S. P. 2007. Patterns of woody plant species abundance and diversity in the seedling layer of a tropical forest. Journal of Vegetation Science 18:163–174.Google Scholar
CORNELIS, W. M., OLTENFREITER, G., GABRIELS, D. & HARTMANN, R. 2004. Splash-saltation of sand due to wind-driven rain: vertical deposition flux and sediment transport rate. Soil Science Society of America Journal 68:32–40.Google Scholar
CRAWLEY, M. J. 2002. Statistical computing an introduction to data analysis using S-Plus. (First edition). Wiley, Chichester. 772 pp.Google Scholar
CRAWLEY, M. J. 2005. Statistics: An introduction using R. (First edition). Wiley, Chichester. 342 pp.Google Scholar
CROAT, T. B. 1978. Flora of Barro Colorado Island. (First edition). Stanford University Press, Stanford. 956 pp.Google Scholar
DALLING, J. W. 2005. The fate of seed banks: factors influencing seed survival for light-demanding species in moist tropical forests. Pp. 31–44 in Forget, P., Lambert, J. E., Hulme, P. E. & VanderWall, S. B. Wall, S. B. (eds.). Seed fate. CABI Publishing, Wallingford.Google Scholar
DALLING, J. W. & HUBBELL, S. P. 2002. Seed size, growth rate and gap microsite conditions as determinants of recruitment success for pioneer species. Journal of Ecology 90:557–568.Google Scholar
DALLING, J. W., SWAINE, M. D. & GARWOOD, N. C. 1994. Effect of soil depth on seedling emergence in tropical soil seed-bank investigations. Functional Ecology 9:119–121.CrossRefGoogle Scholar
DALLING, J. W., HUBBELL, S. P. & SILVERA, K. 1998a. Seed dispersal, seedling establishment and gap partitioning among tropical pioneer trees. Journal of Ecology 86:674–689.Google Scholar
DALLING, J. W., SWAINE, M. D. & GARWOOD, N. C. 1998b. Dispersal patterns and seed bank dynamics of pioneer trees in moist tropical forest. Ecology 79:564–578.CrossRefGoogle Scholar
DARWIN, C. 1881. The formation of vegetable mould, through the action of worms, with observations on their habits. (Fifth thousand (corrected) edition). John Murray, London. 326 pp.CrossRefGoogle Scholar
DAWS, M. I., BALLARD, C., MULLINS, C. E., GARWOOD, N. C., MURRAY, B., PEARSON, T. R. H. & BURSLEM, D. F. R. P. 2007. Allometric relationships between seed mass and seedling characteristics reveal trade-offs for neotropical gap-dependent species. Oecologia 154:445–454.Google Scholar
FORGET, P. & WENNY, D. 2005. How to elucidate seed fate? A review of methods used to study seed removal and secondary seed dispersal. Pp. 379–393 in Forget, P., Lambert, J. E., Hulme, P. E. & Vander Wall, S. B. (eds.). Seed fate. CABI Publishing, Wallingford.Google Scholar
FORNARA, D. A. & DALLING, J. W. 2005. Post-dispersal removal of seeds of pioneer species from five Panamanian forests. Journal of Tropical Ecology 21:79–84.Google Scholar
FOSTER, R. B. 1982. The seasonal rhythm of fruitfall on Barro Colorado Island. Pp. 151–172 in Leigh, E. G., Rand, A. S. & Windsor, D. M. (eds.). The ecology of a tropical forest seasonal rhythms and long-term changes. Smithsonian Institution Press, Washington, DC.Google Scholar
FOSTER, R. B. & BROKAW, N. V. L. 1982. Structure and history of the vegetation of Barro Colorado Island. Pp. 67–81 in Leigh, E. G., Rand, A. S. & Windsor, D. M. (eds.). The ecology of a tropical forest seasonal rhythms and long-term changes. Smithsonian Institution Press, Washington, DC.Google Scholar
GALLERY, R. E., DALLING, J. W. & ARNOLD, A. E. 2007. Diversity, host affinity, and distribution of seed-infecting fungi: a case study with Cecropia. Ecology 88:582–588.Google Scholar
GHADIRI, H. & PAYNE, D. 1981. Raindrop impact stress. Journal of Soil Science 32:41–49.Google Scholar
HARMS, K. E. & DALLING, J. W. 1997. Damage and herbivory tolerance through resprouting as an advantage of large seed size in tropical trees and lianas. Journal of Tropical Ecology 13:617–621.Google Scholar
HERRERA, C. M., JORDANO, P., LÓPEZ-SORIA, L. & AMAT, J. A. 1994. Recruitment of a mast-fruiting, bird-dispersed tree: bridging frugivore activity and seedling establishment. Ecological Monographs 64:315–344.Google Scholar
HOLDRIDGE, L. R., GRENKE, W. C., HATHEWAY, W. H., LIANG, T. & TOSI, J. A. 1971. Forest environments in tropical life zones. (First edition). Pergamon Press, Oxford. 747 pp.Google Scholar
HOWE, H. F. 1989. Scatter- and clump-dispersal and seedling demography: hypothesis and implications. Oecologia 79:417–426.Google Scholar
HOWE, H. F. & SMALLWOOD, J. 1982. Ecology of seed dispersal. Annual Review of Ecology and Systematics 13:201–228.Google Scholar
HUDSON, N. 1971. Soil conservation. (First edition). Batsford, London. 318 pp.Google Scholar
JOHNSSON, M. J. & STALLARD, R. F. 1989. Physiographic controls on the composition of sediments derived from volcanic and sedimentary terrains on Barro Colorado Island, Panama. Journal of Sedimentary Petrology 59:768–781.Google Scholar
LAL, R. 1987. Tropical ecology and physical edaphology. (First edition). Wiley, Chichester. 744 pp.Google Scholar
LEIGH, E. G. 1999. Tropical climates. Pp. 46–66 in Leigh, E. G. (ed.). Tropical forest ecology a view from Barro Colorado Island. Oxford University Press, New York.CrossRefGoogle Scholar
LEVINGS, S. C. & FRANKS, N. R. 1982. Patterns of nest dispersion in a tropical ground ant community. Ecology 63:338–344.CrossRefGoogle Scholar
LOBOVA, T. A., MORI, S. A., BLANCHARD, F., PECKHAM, H. & CHARLES-DOMINIQUE, P. 2003. Cecropia as a food resource for bats in French Guiana and the significance of fruit structure in seed dispersal and longevity. American Journal of Botany 90:388–403.Google Scholar
LOCH, R. J. 1994. A method for measuring aggregate water stability of dryland soils with relevance to surface seal development. Australian Journal of Soil Research 32:687–700.Google Scholar
MARSHALL, T. J., HOLMES, J. W. & ROSE, C. W. 1996. Soil physics. (Third edition). Cambridge University Press, Cambridge. 453 pp.Google Scholar
MORGAN, R. P. C. 1986. Soil erosion and conservation. (First edition). Longman, Harlow. 312 pp.Google Scholar
NATHAN, R. & MULLER-LANDAU, H. C. 2000. Spatial patterns of seed dispersal, their determinants and consequences for recruitment. Trends in Ecology and Evolution 15:278–285.Google Scholar
PEARSON, T. R. H., BURSLEM, D. F. R. P., MULLINS, C. E. & DALLING, J. W. 2002. Germination ecology of neotropical pioneers: interacting effects of environmental conditions and seed size. Ecology 83:2798–2807.CrossRefGoogle Scholar
PEARSON, T. R. H., BURSLEM, D. F. R. P., MULLINS, C. E. & DALLING, J. W. 2003. Functional significance of photoblastic germination in neotropical pioneer trees: a seed's eye view. Functional Ecology 17:394–402.Google Scholar
POESEN, J. 1985. An improved splash transport model. Zeitschrift für Geomorphologie 29:193–211.Google Scholar
SAYER, E. J., TANNER, E. V. J. & CHEESEMAN, A. W. 2006. Increased litterfall changes fine root distribution in a moist tropical forest. Plant and Soil 281:5–13.Google Scholar
SCHUPP, E. W., MILLERON, T. & RUSSO, S. E. 2002. Dissemination limitation and the origin and maintenance of species-rich tropical forests. Pp. 19–33 in Levey, D. J., Silva, W. R. & Galetti, M. (eds.). Seed dispersal and frugivory: ecology, evolution and conservation, CABI Publishing, Wallingford.Google Scholar
SILVERA, K., SKILLMAN, J. B. & DALLING, J. W. 2003. Seed germination, seedling growth and habitat partitioning in two morphotypes of the tropical pioneer tree Trema micrantha in a seasonal forest in Panama. Journal of Tropical Ecology 19:27–34.CrossRefGoogle Scholar
UHL, C., CLARK, K., DEZZEO, N. & MAQUIRINO, P. 1988. Vegetation dynamics in Amazonian treefall gaps. Ecology 69:751–763.Google Scholar
VANDER WALL, S. B. & LONGLAND, W. S. 2005. Diplochory and the evolution of seed dispersal. Pp. 297–314 in Forget, P., Lambert, J. E., Hulme, P. E. & Vander Wall, S. B. (eds.). Seed fate. CABI Publishing, Wallingford.Google Scholar
YESSON, C., RUSSELL, S. J., PARRISH, T., DALLING, J. W. & GARWOOD, N. C. 2004. Phylogenetic framework for Trema (Celtidaceae). Plant Systematics and Evolution 248:85–109.Google Scholar