The present study aims to determine mangrove community structure in the mangrove tourism area of Pariaman City. This study has been conducted in October to December 2019 using the purposive sampling method and belt transect in three stations. A total of 21 mangrove species, 20 genera and 19 families was identified in this area. The tree level vegetation of mangroves was dominated by Sonneratia caseolaris (INP = 140,23%). The sapling level vegetation of mangroves was dominated by Dolichandrone spathacea (INP = 174,39%). The seedling and understorey level vegetation of mangroves was dominated by Acanthus ilicifolius (INP = 58%). The diversity of mangrove species in this study area is relatively low to middle (H' = 1,574-2,212).
The Study of ground-foraging ant diversity was conducted in Bukit Kasang and Lubuk Bonta, Padang Pariaman District, West Sumatera from April to December 2019. The pitfall trap was used to collect the ground-foraging ants on the area in seven type of habitats. A total 35 species belonging to 23 genera, 4 subfamilies were collected, with Camponotus (4 spp.), Pheidole (3 spp.), and Leptogenys (3 spp.) being the taxa with the most species. Myrmicinae is subfamily with the highest number of species with 15 species, followed by Formicinae (10 spp.), Ponerinae (8 spp.) and Dolichoderinae (2 spp.).
Ekosistem mangrove merupakan tipe ekosistem yang khas dan terdapat di sepanjang pantai atau muara sungai yang di pengaruhi oleh pasang surut air laut. Salah satu Vegetasi penyusun hutan mangrove adalah tumbuhan bakau (Rhizophora spp.). Berdasarkan hal tersebut telah dilakukan penelitian yang bertujuan untuk mengetahui struktur populasi dari Rhizophora apiculata BI di hutan mangrove Teluk Buo Kecamatan Bungus Teluk Kabung Kota Padang. Penelitian ini dilakukan dengan metode jalur dengan cara membuat plot-plot berukuran 10x10m untuk tingkat pohon, 5x5 m untuk tingkat anakan, dan 1x1 untuk tingkat semai. Plot – plot tersebut digunakan untuk mengetahui kerapatan dan dominansi Rhizophora apiculata. Dari hasil penelitian yang telah dilakukan diketahui hasil kerapatan tertinggi 2,133 ind/m2 pada semai, selanjutnya 0,773 ind/m2 pada anakan, dan 0, 161 ind/m2 pada pohon. Selanjutnya pada dominansi diketahui hasil tertinggi 0.000593 m2 pada anakan, 0, 000381 m2 pada pohon, dan 0,0000943 m2 pada semai. Dari hasil tersebut dapat disimpulkan bahwa populasi Rhizophora apiculata yang terdapat di hutan mangrove Taluak Buo sedang mengalami regenerasi yang cukup bagus dan tergolong ke dalam hutan yang masih muda
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