Seed germination studies of dominant wetland species of the Delta Marsh / Marita Ignacio Galinato.
Material type:
TextPublication details: Ames, IA : Iowa State University, 1985.Description: iv, 40 leaves : ill. ; 28 cmOnline resources: Abstract: In many prairie wetlands, emergent vegetation is periodically destroyed by high water levels, muskrats or disease (Weller and Spatcher, 1965;Weller and Fredrickson, 1974). Emergent species, as well as many annuals, primarily become established again in these marshes during the next drawdown, because the seeds of many emergent species only germinate on exposed mudflats (Kadlec, 1962; Harris and Marshall, 1963; Meeks,1969; van der Valk and Davis, 1978). Harris and Marshall (1963) observed that during a drawdown different species became established on exposed marsh substrates depending on when the area became free of standing water and the type of soil in the area. Pederson (1983) likewise observed that some seasonal differences occurred in the recruitment of seedlings from the seed bank in a lacustrine marsh. Smith and Kadlec (1985) suggest that salinity levels may also influence recruitment from the seed bank in slightly saline and brackish inland marshes. Other factors that are know
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Thesis(M.S.)--Iowa State University, 1985.
Includes bibliographical references (leaves 36-39).
In many prairie wetlands, emergent vegetation is periodically destroyed by high water levels, muskrats or disease (Weller and Spatcher, 1965;Weller and Fredrickson, 1974). Emergent species, as well as many annuals, primarily become established again in these marshes during the next drawdown, because the seeds of many emergent species only germinate on exposed mudflats (Kadlec, 1962; Harris and Marshall, 1963; Meeks,1969; van der Valk and Davis, 1978). Harris and Marshall (1963) observed that during a drawdown different species became established on exposed marsh substrates depending on when the area became free of standing water and the type of soil in the area. Pederson (1983) likewise observed that some seasonal differences occurred in the recruitment of seedlings from the seed bank in a lacustrine marsh. Smith and Kadlec (1985) suggest that salinity levels may also influence recruitment from the seed bank in slightly saline and brackish inland marshes. Other factors that are know