Potential role of seed banks and understory species in restoring quaking fens from floating forests
✍ Scribed by A. G. Valk; J. T. A. Verhoeven
- Book ID
- 104622805
- Publisher
- Springer Netherlands
- Year
- 1988
- Tongue
- English
- Weight
- 799 KB
- Volume
- 76
- Category
- Article
- ISSN
- 1385-0237
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✦ Synopsis
Quaking tens and floating forests in the Westbroek Polder, the Netherlands, have seed banks with an estimated mean total seed density of 920 and 690 seeds m 2, respectively. Fifty nine species were found in two or more quaking fens of which 39 were also found in their seed banks. Fifty species were found in two or more floatingforests and 31 of these were also found in their seed banks. The seed banks of fens and forests had 36 species in common. The seed banks of fens and forests were more similar (Spearman rank order correlation coefficients of 0.64 on the basis of percent presence and 0.61 on the basis of mean seed density in the seed bank and mean species cover in the vegetation) than were the seed banks and vegetation of either fens or forests (0.46 and 0.46 for fens; 0.26 and 0.23 for forests).
When the tree canopy is removed from a floating forest to try to restore it to a quaking fen, it is predicted that a total of 47 species from the floating-forest understory will persist. Eleven of these species are not present in fens. Fifteen additional species can become established potentially from the forest seed banks. Sixteen species found in fens, however, are predicted to be missing from cleared sites. Of these 16 species, 7 are uncommon aquatic-and fen species.
Nomenclature: follows van der Meijden et al. (1984).