The relationship between seed rain and the soil seed bank in a temperate rainforest stand near Auckland, New Zealand
| Autor: | G. Sem, Neal J. Enright |
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| Rok vydání: | 1996 |
| Předmět: | |
| Zdroj: | New Zealand Journal of Botany. 34:215-226 |
| ISSN: | 1175-8643 0028-825X |
| DOI: | 10.1080/0028825x.1996.10410686 |
| Popis: | Composition of the germinable seed rain and the soil seed bank is documented for five sites in temperate rainforest near Auckland, New Zealand, in an effort to understand the dynamics of the soil seed bank. The seed rain added a mean of 202 ± 93 germinable seeds per 0.1 m2 over 15 months to the forest floor in 1988 and a total of 40 species (range 15–25 per site). The source of seeds included both native forest species growing on-site, and adventive species of which most were growing off-site. Species richness of the seed rain was highest in summer (32 species) and lowest in winter (6 species). However, density of the recorded seed rain was highest in late autumn-early winter from high seed rain and massive germination in May and June of seeds from the native tree, Kunzea ericoides, at two sites in the early stages of forest regrowth. Seed germination from soil samples which had been denied seed inputs for 15 mo identified the density (52 ± 41/0.1m2) and composition (18 species, range 2–9) of the... |
| Databáze: | OpenAIRE |
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