The effects of disturbance on marsh seed banks

摘要: Seed numbers and the species composition of seed banks (germinable seeds) from a marsh adjacent to Great Salt Lake were compared among five vegetation types prior drawdown, during fire, after restoration normal water levels. Substrate samples processed in greenhouse under submersed moist soil treatments simulate two germination conditions found field. After movement into different was also estimated. Numbers germinable seeds not depleted possibly owing increased salinity presence standing vegetation. Fire had little effect on subsequent seedling response. In general, affected by disturbance (e.g., burning, drawdown). The indicated that ingress could be important when one considers potential change. open sites contained few ger...