Article Dans Une Revue Science Année : 2024

Consumer biodiversity increases organic nutrient availability across aquatic and terrestrial ecosystems

Rebecca Oester
  • Fonction : Auteur
Tarn Preet Parmar
  • Fonction : Auteur
Carmen Kowarik
Maja Ilíć
Dominik Martin-Creuzburg
Martin K. Obrist

Résumé

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.

Dates et versions

hal-04878493 , version 1 (10-01-2025)

Identifiants

Citer

J. Ryan Shipley, Rebecca Oester, Margaux Mathieu-Resuge, Tarn Preet Parmar, Carmen Kowarik, et al.. Consumer biodiversity increases organic nutrient availability across aquatic and terrestrial ecosystems. Science, 2024, 386 (6719), pp.335-340. ⟨10.1126/science.adp6198⟩. ⟨hal-04878493⟩
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