Tortosa A., Freschet G. T., Trap Jean, Brauman Alain, Capowiez Y., Coq S., Fromin N., Gandois L., Guiresse M., Huys R., Lecerf A., Limousin J. M., Milcu A., Nahmani J., Robin A., Sanchez-Perez J. M., Sauvage S., Tallec T., Wittling C., Hattenschwiler S. (2026). Biodiversity co-variation patterns in a range of soil organism taxa across highly contrasting ecosystems. Soil Biology & Biochemistry, 215, p. 110093 [15 p.]. ISSN 0038-0717.
Titre du document
Biodiversity co-variation patterns in a range of soil organism taxa across highly contrasting ecosystems
Année de publication
2026
Auteurs
Tortosa A., Freschet G. T., Trap Jean, Brauman Alain, Capowiez Y., Coq S., Fromin N., Gandois L., Guiresse M., Huys R., Lecerf A., Limousin J. M., Milcu A., Nahmani J., Robin A., Sanchez-Perez J. M., Sauvage S., Tallec T., Wittling C., Hattenschwiler S.
Source
Soil Biology & Biochemistry, 2026,
215, p. 110093 [15 p.] ISSN 0038-0717
Soil biodiversity as a critical component of terrestrial ecosystems and their functioning varies across spatial scales and environmental conditions. However, it remains unclear whether and how biodiversity patterns co-vary among different soil taxa across ecosystems. In this study, we compared diversity patterns of plants, earthworms, nematodes, bacteria, and fungi, as five major groups of soil organisms, across six strongly contrasting ecosystems ranging from mountain peatland to crop fields, including within-ecosystem variation in soil moisture. We hypothesized co-variation in taxonomic richness (alpha diversity) and composition (beta diversity) of multiple groups of soil organisms across ecosystems, moisture conditions and spatial scales. In partial contrast to our initial hypothesis, co-variation in the taxonomic richness among these groups was limited, though significant positive associations were found among bacteria, fungi, and earthworms across all sites. Plant diversity showed distinct associations with soil organism diversity, particularly with earthworms and bacteria, highlighting above-belowground biodiversity linkages. Beta diversity showed substantial co-variation among all soil organism groups, reflecting a spatial coupling of their communities that was influenced by differences in soil moisture conditions. These patterns were more pronounced in near-natural and no-till agroecosystems compared to conventional agricultural systems. Our results highlight that ecosystem type shapes broad-scale taxonomic richness, while local soil moisture critically influences soil biodiversity and spatial community composition, emphasizing the multi-scale drivers of soil biodiversity.
Plan de classement
Biologie du sol [074]
;
Etudes, transformation, conservation du milieu naturel [082]
Description Géographique
FRANCE ; OCCITANIE
Localisation
Fonds IRD [F B010096318]
Identifiant IRD
fdi:010096318
