Nunuka Secondary Forest: 84 Tree Species and Jabon Dominance

Image: article cover, from Nurlita and Yermias (2017), Jurnal Wasian, licensed CC BY-NC 4.0.

A research team from the Manado Forestry and Environmental Research and Development Centre recorded 84 tree species in the Nunuka secondary forest, North Bolaang Mongondow, North Sulawesi. The study, carried out in November 2014, analysed the composition, diversity and structure of a logged-over forest. The findings were published in the Journal Wasian in 2017.

At the tree stratum, the most dominant species is jabon (Anthocephalus macrophyllus). The pole and sapling strata, meanwhile, are dominated by Eugenia sp. Species diversity in the area is classed as low to moderate, although the distribution of species is almost even. Vegetation density reaches 485.83 trees per hectare, with a mean basal area of 35.15 square metres per hectare. However, the distribution of stem sizes does not form the reverse-J pattern typical of primary forest. The reverse-J pattern does appear, instead, in the graphs for the ten dominant species at the tree and sapling strata.

Secondary forest in Indonesia covers around 24.2 per cent of the total land area and consists largely of logged-over forest. Understanding the vegetation diversity of secondary forest is therefore important for determining its future management, particularly within forest management policy at the level of the Forest Management Unit (KPH).

Source and how to cite

This story is based on the research article Species Composition and Structure of Secondary Forest at Nunuka, North Bolaang Mongondow by Nurlita Indah Wahyuni Nurlita and Yermias Kafiar Yermias, published in Jurnal Wasian Vol. 4 No. 1 (2017). The full article is free to read on the Jurnal Wasian website.

Cite the original article (APA 7):

Nurlita, N. I. W., & Yermias, Y. K. (2017). Species Composition and Structure of Secondary Forest at Nunuka, North Bolaang Mongondow. Jurnal Wasian, 4(1), 27–36. https://doi.org/10.62142/b5aze359

If you use these findings in coursework, a thesis or other writing, cite the original article above, not this news story. The original article is licensed CC BY-NC 4.0.