研究人员将昆虫和蜘蛛的丰富度与生物量和来自溪流及陆地群落的多不饱和脂肪酸（PUFA）含量进行了关联分析，涵盖了九种土地利用方式。PUFA含量和生物量与生物多样性在不同生态系统中呈正相关。
在陆地系统中，人类主导的区域的生物量和PUFA含量低于更自然的区域，即使它们的丰富度相当。水生生态系统的PUFA含量始终高于陆地生态系统。这些研究结果强化了保护生物多样性的重要性，并突出了水生生物多样性的独特优势。
据介绍，人类土地利用强化威胁着水生和陆地生态系统中的节肢动物（如昆虫和蜘蛛）生物多样性。昆虫和蜘蛛在生态系统中发挥着关键作用，它们积累和合成有机营养物质，如PUFA。然而，昆虫和蜘蛛群落的生物多样性与营养含量之间的联系尚未得到量化。
附：英文原文
Title: Consumer biodiversity increases organic nutrient availability across aquatic and terrestrial ecosystems
Author: J. Ryan Shipley, Rebecca Oester, Margaux Mathieu-Resuge, Tarn Preet Parmar, Carmen Kowarik, Maja Ilí, Martin J. Kainz, Dominik Martin-Creuzburg, Martin K. Obrist, Catherine H. Graham, Martin M. Gossner, Blake Matthews, Cornelia W. Twining
Issue&Volume: 2024-10-18
Abstract: Human land-use intensification threatens arthropod (for example, insect and spider) biodiversity across aquatic and terrestrial ecosystems. Insects and spiders play critical roles in ecosystems by accumulating and synthesizing organic nutrients such as polyunsaturated fatty acids (PUFAs). However, links between biodiversity and nutrient content of insect and spider communities have yet to be quantified. We relate insect and spider richness to biomass and PUFA-mass from stream and terrestrial communities encompassing nine land uses. PUFA-mass and biomass relate positively to biodiversity across ecosystems. In terrestrial systems, human-dominated areas have lower biomass and PUFA-mass than more natural areas, even at equivalent levels of richness. Aquatic ecosystems have consistently higher PUFA-mass than terrestrial ecosystems. Our findings reinforce the importance of conserving biodiversity and highlight the distinctive benefits of aquatic biodiversity.
DOI: adp6198
Source: https://www.science.org/doi/10.1126/science.adp6198