TY - GEN A1 - Shipley, J. Ryan A1 - Oester, Rebecca A1 - Mathieu-Resuge, Margaux A1 - Parmar, Tarn Preet A1 - Kowarik, Carmen A1 - Ilíć, Maja A1 - Kainz, Martin J. A1 - Martin-Creuzburg, Dominik A1 - Obrist, Martin K. A1 - Graham, Catherine H. A1 - Gossner, Martin M. A1 - Matthews, Blake A1 - Twining, Cornelia W. T1 - Consumer biodiversity increases organic nutrient availability across aquatic and terrestrial ecosystems T2 - Science N2 - 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. KW - land-use KW - predator richness KW - polyunsaturated fatty acid Y1 - 2024 U6 - https://doi.org/10.1126/science.adp6198 SN - 0036-8075 VL - 386 IS - 6719 SP - 335 EP - 340 PB - American Association for the Advancement of Science (AAAS) ER -