Abstract
The salinity gradient in the mangrove swamps of a bay in Guanacaste, Costa Rica is closely related to edaphic and climatic conditions and greatly affects the floristic composition, zonation and structural characteristics of the mangrove community. High salinities stunt growth, and reduce the basal area of the individual trees and the size of the leaves. Tolerance of some species to high salinity was greater than previously known; Avicennia germinans was found growing in areas of up to 1550/00, with annual averages of 100.50/00.References
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