Present address: Department of Botany, Institute of Ecology and Earth Sciences, University of Tartu, Tartu, 51005, Estonia.
2041-210X/asset/olbannerleft.gif?v=1&s=1e80b9367ecb31f1b5cc2830ff8e98a4f5dd6f23)
2041-210X/asset/olbannerright.gif?v=1&s=0a5762ce8b20769bd5f856575232909b64428b79)
You have free access to this content
Comparison of seedling emergence and seed extraction techniques for estimating the composition of soil seed banks
Article first published online: 22 FEB 2010
DOI: 10.1111/j.2041-210X.2010.00011.x
© 2010 The Authors. Journal compilation © 2010 British Ecological Society
Additional Information
How to Cite
Price, J. N., Wright, B. R., Gross, C. L. and Whalley, W. R. D. B. (2010), Comparison of seedling emergence and seed extraction techniques for estimating the composition of soil seed banks. Methods in Ecology and Evolution, 1: 151–157. doi: 10.1111/j.2041-210X.2010.00011.x
- †
Present address: Department of Botany, Institute of Ecology and Earth Sciences, University of Tartu, Tartu, 51005, Estonia.
Correspondence site: http://www.respond2articles.com/MEE/
Publication History
- Issue published online: 4 MAY 2010
- Article first published online: 22 FEB 2010
- Received 21 October 2009; accepted 4 January 2010 Handling Editor: Robert P. Freckleton
- Abstract
- Article
- References
- Cited By
Keywords:
- functional groups;
- Phyla canescens;
- seed size;
- species composition
Summary
1. Characterization of the seed bank is one of the most important demographic assessments that can be undertaken for a plant community. Overlapping generations, evidence of past above-ground vegetation and histories of invasion and disturbance are recorded in the seed bank.
2. Two broad approaches have been used to elucidate seed bank components – sifting-sorting techniques and germinability assays. The utility of these approaches varies with community type and habitat although a common theme among studies has been the quest for an efficacious method. Here, we compare the two approaches for semi-arid ephemeral wetlands: seed extraction through flotation and seedling emergence.
3. Species composition of the soil seed bank differed dramatically depending on the technique, with only 19 species common to both methods and a total of 66 species detected using both procedures.
4. Both techniques provided similar estimates of seed density and species richness of the seed bank in the top 5 cm of soil. However, samples collected from 5 cm to 20 cm had lower seed densities using the flotation technique than with the seedling emergence technique.
5. Differences in seed detectability between the two approaches may be related to seed size, seed dormancy and specific germination requirements.
6. The community composition of soil seed banks for ephemeral wetlands depends on the choice of technique.