在正在恢复的热带干森林中,泥甲虫的组装沿着时间序列发生变化
Jibram León1, Daniel González-Tokman2, Teresa Castillo-Burguete1
1Departamento de Ecología Humana, Cinvestav, Antigua Carretera a Progreso, Mérida, Yucatán, México.
PloS one
|December 4, 2025
概括
热带干旱森林中的泥甲虫群体对森林再生作出动态反应,特定的功能群体对土地使用强度表现出不同的敏感性. 在森林恢复期间,二级森林对于维持生物多样性和生态系统功能至关重要.
科学领域:
- 生态生态学 生态生态学
- 保护生物学 保护生物学
- 热带生态学热带生态学
背景情况:
- 热带干旱森林是全球受威胁的生态系统,易受土地利用变化的退化影响.
- 了解森林再生期间的生物多样性反应对于有效的保护和土地管理至关重要.
- 甲甲虫 (Scarabaeinae) 是生态系统健康和在热带环境中的功能重要指标.
研究的目的:
- 评估横跨尤卡坦半岛森林恢复时间序列 (1-100年) 的虫社区组成和功能多样性.
- 为了确定预测虫组合结构和多样性的关键森林属性.
- 了解不同虫功能群体对森林继承和土地利用强度的特征介导反应.
主要方法:
- 在尤卡坦半岛的六个森林年龄类别中使用90个陷陷的实地研究.
- 收集并鉴定了6605个甲甲虫个体,代表23个物种和13个属.
- 采用基于距离的冗余分析 (db-RDA) 和多模型推断来将虫组合与森林结构和多样性指标联系起来.
主要成果:
- 泥甲虫物种的丰富性,生物量和丰富性与森林结构和多样性指标 (如地表生物量和香农) 有显著的关联.
- 功能组的反应有所不同:小小的日间滚子随着土地使用强度的增加而增加,而其他组在早期的继承阶段下降.
- 森林属性,包括DBH,地表生物质,树冠开放度和垃圾深度,解释了48.7%的虫组装结构变化.
结论:
- 泥甲虫群体表现出基于值和特征的森林继承反应,强调生物文化管理景观的生态重要性.
- 二级森林在维持生物多样性和生态系统功能方面发挥着至关重要的作用,支持它们的保护.
- 研究结果强调了特定森林属性的重要性,例如垃圾量和森林多样性,以支持热带干森林恢复期间的甲虫群体.
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