Stream Fish Biodiversity and the Effects of Plantations in the Bintulu Region, Sarawak

Yuichi Kano, Jason Hon, Khairulazman Sulaiman Mohd Khairulazman Sulaiman, Mitsuhiro Aizu, Koji Noshita, Hiromitsu Samejima

研究成果: 書籍/レポート タイプへの寄稿

2 被引用数 (Scopus)

抄録

The biodiversity of stream-dwelling fish and the effects of oil palm and acacia plantations on this biodiversity were evaluated by field research conducted in the Bintulu region of central Sarawak, Malaysia. A quantitative survey was conducted at 61 locations by electrofishing. These 61 locations included 16 sites in oil palm plantations, five sites in acacia plantations, four sites in local community-protected forests (called pulau or pulau galau by local communities) and 36 sites in natural forests. The protected forests had the highest species richness (average ± standard deviation: 9.3 ± 2.6) followed by natural forests (7.4 ± 3.1). The species richness of oil palm (3.3 ± 1.9) and acacia (4.0 ± 1.9) plantations was approximately half that of protected and secondary forests. Cluster analysis suggests that the fish fauna was largely divided into two main groups: the plantation group and the forest group. Statistical analysis by a generalised linear model also suggests that plantations have a negative impact on fish diversity as species richness, the number of individuals and Shannon’s diversity index were all negatively affected by both oil palm and acacia plantations. The models included topographical parameters, such as slope and altitude, but the effect of plantations was much stronger than the effects of these parameters, indicating that there was no spurious relationship between plantations and fish communities. In this chapter, we evaluate the negative effect of plantations on fish biodiversity. The mechanisms by which plantations affect fish biodiversity need to be investigated in the future.

本文言語英語
ホスト出版物のタイトルAdvances in Asian Human-Environmental Research
出版社Springer International Publishing
ページ235-274
ページ数40
DOI
出版ステータス出版済み - 2020

出版物シリーズ

名前Advances in Asian Human-Environmental Research
ISSN(印刷版)1879-7180
ISSN(電子版)1879-7199

!!!All Science Journal Classification (ASJC) codes

  • 地球変動および惑星変動
  • 地理、計画および開発
  • 自然保全および景観保全
  • マネジメント、モニタリング、政策と法律

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