生物多样性重新表达: > 99.9% 的全球物种在土壤生物群中
Robert J Blakemore1,2,3
1VermEcology, 101 Suidomichi, Nogeyama, Yokohama-shi, Kanagawa-ken 231-0064, Japan VermEcology Kanagawa-ken Japan.
ZooKeys
|February 12, 2025
概括
土壤生物群支持超过99.9%的地球物种,主要是微生物和细菌. 尽管有相互矛盾的报道,土壤生物多样性仍然很大,尽管受到侵蚀和污染的威胁.
科学领域:
- 生态生态学 生态生态学
- 微生物学 微生物学
- 生物多样性科学 生物多样性科学
背景情况:
- 最近的研究提出了对土壤生物多样性的相互矛盾的估计.
- 2022年的估计表明~2.1 × 10^24个种类,支持> 99.9%的全球物种.
- 一份2023年的报告提出了1.04 × 10^10个类型的较低的中心值,土壤占全球生物多样性的10-74%.
研究的目的:
- 审查和协调最近的土壤生物多样性研究之间的不兼容的发现.
- 为了澄清土壤生态系统中特定类型的地位,如Oligochaeta (地).
- 强调土壤生物多样性和它面临的威胁的关键作用.
主要方法:
- 对地形现场数据和报告的生物多样性指标进行比较分析.
- 对土壤微生物和宏观动物种群的现有文献的审查.
- 包括病毒生物多样性的数据,特别是在土壤环境中.
主要成果:
- 绝大多数全球物种居住在土壤中,支持先前的生物多样性数据.
- 土壤细菌占土壤物种的很大一部分,可能高达90%.
- 病毒,估计有10^26种,主要存在于土壤 (~80%).
结论:
- 土壤生物群的生物多样性贡献是巨大的,可能超过99.9%的全球物种.
- 包括虫和微生物在内的关键类型对土壤健康和更广泛的生命树至关重要.
- 迫切需要进行保护,以应对诸如表层土壤侵蚀和污染等威胁,这些威胁土壤生物多样性和生态系统稳定性.
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