Scholarlink

<p>The transformation of tropical forests into human-modified environments, driven by deforestation and agricultural expansion, threatens insect biodiversity. However, the responses of many insect groups facing landscape changes are less clear, particularly Melolonthidae beetles, which play essential roles in ecosystems. This study investigated how landscape parameters - forest cover, landscape diversity, and edge density - affect Melolonthidae assemblages in an Amazonian region undergoing anthropogenic impacts. Beetles were sampled using light traps over 12 months in conserved forest, exotic pasture, peach palm plantation, and coffee plantation. Landscape metrics were calculated using satellite imagery, and statistical models analyzed the relationships between landscape descriptors and beetle assemblages. In all, 3,586 individuals from 72 species and four subfamilies were collected. Forest cover was the main driver of changes in species richness, increased forest cover positively affected species richness of Melolonthidae and its subfamilies Melolonthinae and Rutelinae. In contrast, edge density was the main driver of total abundance, with increased edge density positively affecting total assemblage abundance. Landscape diversity positively influenced the abundance of Dynastinae and Rutelinae. Thus, while greater landscape diversity and edge density can enhance the abundance of certain subfamilies, forest conservation remains crucial for overall species richness.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Landscape shifts challenge the maintenance of Melolonthidae (Coleoptera: Scarabaeoidea) communities in the Amazon deforestation arc

  • 期刊论文

  • 发表日期：

    2025年4月17日

查看全文
  • Kleyton Rezende Ferreira,
  • Elio Cesar Guzzo,
  • Juan Jose Von Thaden Ugalde,
  • Fernando Zagury Vaz-de-Mello,
  • César Murilo de Albuquerque Correa,
  • Renato Portela Salomão

摘要

The transformation of tropical forests into human-modified environments, driven by deforestation and agricultural expansion, threatens insect biodiversity. However, the responses of many insect groups facing landscape changes are less clear, particularly Melolonthidae beetles, which play essential roles in ecosystems. This study investigated how landscape parameters - forest cover, landscape diversity, and edge density - affect Melolonthidae assemblages in an Amazonian region undergoing anthropogenic impacts. Beetles were sampled using light traps over 12 months in conserved forest, exotic pasture, peach palm plantation, and coffee plantation. Landscape metrics were calculated using satellite imagery, and statistical models analyzed the relationships between landscape descriptors and beetle assemblages. In all, 3,586 individuals from 72 species and four subfamilies were collected. Forest cover was the main driver of changes in species richness, increased forest cover positively affected species richness of Melolonthidae and its subfamilies Melolonthinae and Rutelinae. In contrast, edge density was the main driver of total abundance, with increased edge density positively affecting total assemblage abundance. Landscape diversity positively influenced the abundance of Dynastinae and Rutelinae. Thus, while greater landscape diversity and edge density can enhance the abundance of certain subfamilies, forest conservation remains crucial for overall species richness.