Tree species diversity in the adopted forest of Barangay Verdu, Bayugan City, Agusan Del Sur, Philippines

Crystelle Anne Baynosa-Montera

International Journal of Ecology and Ecosolution
Published: November 15 2024
Volume 10, Issue 1
Pages 1-9

Abstract

Tree species composition significantly shapes the structure and function of forest ecosystems. Tree species vary in the ecosystem services they provide, including carbon sequestration, nutrient cycling, soil conservation, and wildlife habitat. This study assessed the tree species diversity in the adopted forest of Bayugan National Comprehensive High School, situated in Barangay Verdu, Bayugan City, Agusan Del Sur, Philippines. A quadrat sampling method was employed to survey trees in the area. Nine 20 m x 20 m quadrats were established, and identification of species was done. A total of 31 tree species were recorded in the area, including Himbabaod or Neonauclea formicaria (Elm.) Merr. from the Rubiaceae family is a highly numbered species with an importance value of 29.55. The Moraceae family has the highest number of species in the area. Species diversity was also computed using Shannon-Weiner and Simpson’s Index, which resulted in moderate to very high diversity. Two vulnerable species were present, Shorea negrosensis and Nephelium lappaceum according to DAO 2017-11, whereas Sandoricum koetjape and Palaquium pinnatinervium were vulnerable and endangered according to IUCN, respectively. The majority of the trees are saplings and poles which suggests a tree-growing initiative as well as more conservation efforts in protecting the area.

Keywords: Tree species, diversity, adopted forest, conservation status.

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