全球植物遗传多样性的热点
Melanie Tietje1, Alexandre Antonelli2,3,4, Félix Forest2
1Department of Biology, Aarhus University, Aarhus, 8000, Denmark.
The New phytologist
|July 27, 2023
概括
保护独特的植物遗传多样性 (PD) 需要保护更多的地区,而不仅仅是保护物种多样性. 识别这些关键的保护区域对于保护人类世的全球生物多样性至关重要.
科学领域:
- 生态生态学 生态生态学
- 保护生物学 保护生物学
- 生物多样性科学 生物多样性科学
背景情况:
- 具有高度独特的植物遗传多样性 (PD) 的地区是关键的保护目标.
- 了解植物PD的全球分布至关重要,因为植物是大多数陆地生态系统和人类生计的基础.
- 最近完成了一份关于血管植物的全面全球检查清单,这使得新的分析成为可能.
研究的目的:
- 分析植物遗传多样性的全球分布.
- 为了确定独特的植物PD的热点.
- 测试与物种多样性相比,关于PD分布的假设及其对保护区选择的影响.
主要方法:
- 对血管植物的全面全球检查清单的分析.
- 确定具有高独特PD (热点) 的地区.
- 测试PD分布的假设,最大化累积PD的面积要求和生物组表示.
主要成果:
- 遗传学多样性 (PD) 在全球范围内比物种多样性更均地分布.
- 实现累积PD最大化的地区与个人PD最高的地区有很大差异.
- 需要更多的地区来覆盖全球50%的植物PD,而物种多样性的50%需要覆盖超过两倍的地区.
- (亚热带) 潮湿森林在PD热点中占据着突出地位,但其他森林类型和开放生物群也对最大限度地提高PD至关重要.
结论:
- 保护战略必须考虑植物遗传多样性 (PD) 与物种多样性一起,可能包括物种贫困地区.
- 为了最大限度地提高累积的PD,需要比以前认可的更广泛的区域和生物群.
- 在人类时代有效地保护植物生物多样性,需要采用一种考虑各种息地和空间尺度的全球方法.
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