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| | Competitive interactions among crustose algae |
 | | In intertidal communities, much of the primary substratum is occupied by encrusting coralline algae (Adey and McIntyre, 1973; Johansen, 1981; Paine, 1984; Steneck, 1986; Steneck and Paine, 1986; Dethier et al., 1991; Steneck et al., 1991; Keats and Maneveldt, 1994; Keats et. |
 | | Corallines which regenerate secondary margins behind their primary margins, are able to slow down or stop the encroachment of thicker crusts. |
 | | In general, thicker corallines and those with raised margins have a competitive advantage over thinner ones and those with adherent margins of equal or greater thallus thickness (Paine, 1984; Steneck, 1986; Steneck et al., 1991). |
| www.botany.uwc.ac.za /clines/compete.htm (675 words) |
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