The Analysis of the Interaction Pattern of Mangrove Vegetation-Generating Ephyfite Plant at Southern Part of Bunaken National Park in North Sulawesi

Abstract

Mangrove forest in Bunaken National Park is the vegetative distribution pattern, or meaning that the plant community is not stand alone. In other word, unlimited interspecies interaction may be developed comprehensively from plants and animals. The objective of research is to analyze the interaction pattern of orchid ephyfite plant and mangrove vegetation-generating fern plant. Field survey is used as research method by taking a sample of substrate, leaf, and sea water. Data analysis tool is vegetation analysis and laboratory analysis.

Result of analysis on the data of Sonaratia with pigeon orchid indicates the coefficient rate of (0.707), meaning that strong association is made. Rhizophora with pigeon orchid shows weak association with coefficient rate of (0.243). Rhizophora and pigeon orchid has also very weak association with coefficient rate of (0.186). Rhizophora and moon orchid has moderate association with coefficient rate of (0.552). Bruguiera and pigeon orchid has moderate association with coefficient rate of (0.447). Bruguiera and moon orchid shows very weak category by coefficient rate of (0.124). The interaction of while orchid with coefficient rate of (0.908) is in the strong association. Such interaction may include in the Protocooperation type (++), while fern with coefficient rate of (0.870) can be in strong association, and included within Mutualism interaction type (++).

Keywords: Interaction, Mangrove, Orchid, Fern