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<p>The edge effect significantly impacts the ecological dynamics and biodiversity of woody plants. The Tabuleiro Forest in northern Espírito Santo, Brazil, is a crucial remnant of the Atlantic Forest, constantly threatened by anthropogenic pressures, with its plant communities still poorly understood in terms of structure and diversity. This study examined the diversity, structure, and richness of woody plants along an edge-to-interior gradient in the Sooretama Biological Reserve. Four complete 1-ha plots (40 x 250 m) were selected from previously established RAPELD modules — a standardized sampling framework that integrates the Rapid Assessment Program (RAP) and Long-Term Ecological Research (PELD) — located at distances of 50 m, 250 m, 500 m, and 750 m from the highway, following the directional gradient from forest edge to interior. Woody individuals were measured in three dbh criteria (≥1 cm, ≥10 cm, ≥30 cm). A total of 2,275 individuals were sampled, representing 295 species across 169 genera and 54 families, with Fabaceae and Myrtaceae being the most diverse, and <i>Rinorea bahiensis</i> the most frequent species. Species richness, diversity, and structure varied along the edge-to-interior gradient. Greater diversity and species richness were observed at the edge, suggesting favorable conditions for early-successional species, while the interior exhibited a higher basal area, indicating less impact of the edge effect on forest structure.</p>

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How Does the Edge Effect from a Highway Impact the Structure and Floristic Diversity of the Singular Tabuleiro Forest?

  • 期刊论文

  • 发表日期：

    2025年8月5日

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  • Thamyres Cardoso da Silveira,
  • Felipe Zamborlini Saiter,
  • Geovane Souza Siqueira,
  • Diego Lang Burak,
  • Luciana Ventura Machado,
  • Aureo Banhos,
  • Geisa Corrêa Louback,
  • Mônica A. Cupertino-Eisenlohr,
  • Eduardo de Sá Mendonça

摘要

The edge effect significantly impacts the ecological dynamics and biodiversity of woody plants. The Tabuleiro Forest in northern Espírito Santo, Brazil, is a crucial remnant of the Atlantic Forest, constantly threatened by anthropogenic pressures, with its plant communities still poorly understood in terms of structure and diversity. This study examined the diversity, structure, and richness of woody plants along an edge-to-interior gradient in the Sooretama Biological Reserve. Four complete 1-ha plots (40 x 250 m) were selected from previously established RAPELD modules — a standardized sampling framework that integrates the Rapid Assessment Program (RAP) and Long-Term Ecological Research (PELD) — located at distances of 50 m, 250 m, 500 m, and 750 m from the highway, following the directional gradient from forest edge to interior. Woody individuals were measured in three dbh criteria (≥1 cm, ≥10 cm, ≥30 cm). A total of 2,275 individuals were sampled, representing 295 species across 169 genera and 54 families, with Fabaceae and Myrtaceae being the most diverse, and Rinorea bahiensis the most frequent species. Species richness, diversity, and structure varied along the edge-to-interior gradient. Greater diversity and species richness were observed at the edge, suggesting favorable conditions for early-successional species, while the interior exhibited a higher basal area, indicating less impact of the edge effect on forest structure.