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Assessment of mangrove diversity in Santa Cruz, Davao Del Sur, Philippines

Jayson Cardillo, Annabelle Novero

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J. Bio. Env. Sci.14(2), 53-62, February 2019


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This study assessed the mangrove species in Santa Cruz, Davao del Sur, Philippines. Six sample plots were established and results of the assessment yielded 17 different species of mangroves in the area with one categorized as Vulnerable (Avicennia rumphiana). Abundance curve estimated uneven distribution of species. Diversity indices yielded dominance (0.159) and evenness (0.535) values that are relatively lower compared to values from other municipalities in the Davao region. Shannon index value of 2.2 was concluded to be higher than other mangrove assessment studies which suggest higher diversity in the area. Investigation of the mangrove community structure concluded that Sonneratia alba (importance percentage of 24%) is a keystone species of the mangrove forest and that it is the most acclimated to the environment of Santa Cruz. Assessment of mangrove diversity is crucial to restoration efforts that address the problems of deforestation brought about by man-made disturbances.


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Assessment of mangrove diversity in Santa Cruz, Davao Del Sur, Philippines

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