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Title: Comparison of seedling emergence and seed extraction techniques for estimating the composition of soil seed banks
Contributor(s): Price, Jodi Nicole  (author); Wright, Boyd  (author)orcid ; Gross, Caroline L  (author)orcid ; Whalley, Ralph D  (author)orcid 
Publication Date: 2010
DOI: 10.1111/j.2041-210X.2010.00011.x
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Abstract: 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.
Publication Type: Journal Article
Source of Publication: Methods in Ecology and Evolution, 1(2), p. 151-157
Publisher: Wiley-Blackwell Publishing Ltd
Place of Publication: United Kingdom
ISSN: 2041-210X
Field of Research (FOR): 060207 Population Ecology
050205 Environmental Management
050209 Natural Resource Management
Socio-Economic Outcome Codes: 960805 Flora, Fauna and Biodiversity at Regional or Larger Scales
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
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