DIVERSITY AND VERTICAL DISTRIBUTION OF VASCULAR EPIPHYTES ON A MALAYSIAN MANGROVE ISLAND
Keywords:epiphyte ecology, mangroves, Setiu Wetlands, spatial distribution
Many studies have attempted to explain the diversity and abundance of epiphytic plants in major ecosystems, worldwide. However, investigations on the abundance of epiphytic plants in mangroves have remained rare. The aim of this research was to study the diversity and vertical distribution of vascular epiphytes in a mangrove forest in peninsular Malaysia. The sampling was done over a 0.1 hectare of Pulau Telaga Tujuh, a mangrove island in Terengganu, Malaysia. Trees with vascular epiphytes were divided into three strata: basal, trunk and canopy. The vascular epiphytes were identified, and the number of individuals in each stratum was recorded. In total, 8 species of vascular epiphytes from 6 genera and 4 families were recorded. Pulau Telaga Tujuh mangrove forest exhibited a relatively low diversity of vascular epiphytes (Hâ€™ = 1.43). The dominance of Hydnopytum formicarum significantly contributed to the diversity of vascular epiphytes in this forest. The highest abundance of epiphytes was observed on the trunks of the host trees. The vertical distribution pattern observed in this study is associated with the adaptation of the epiphytic plants to stresses in the mangrove ecosystem, particularly, drought and salt spray. Pulau Telaga Tujuh had a high density of vascular epiphytes but lower diversity compared with other ecosystems.
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