The size and [species] composition of soil seed-banks in remnant patches of three structural rainforest types in north Queensland
1990
Hopkins, M.S. | Tracey, J.G. | Graham, A.W. (Commonwealth Scientific and Industrial Research Organization, Atherton (Australia). Div. of Wildlife and Ecology, Tropical Forest Research Centre)
Three structurally and floristically distinct rainforests (Complex Mesophyll Vine Forest, Complex Notophyll Vine Forest and Semi-Evergreen Vine Thicket) were assessed. Seeds of 94 species germinated from 12 surface soil samples collected from each site. The seed-bank from the seasonally dry vine thicket was significantly larger (4000 seeds per sq m) than those from the 2 moister sites (400-600 seeds per sq m), contained more seeds of roadside and agricultural herbs, and fewer seeds of rainforest pioneer and secondary shrubs and trees. Three explanations are suggested for the different seed-bank structure observed in the seasonally dry forest site.
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