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Le Bayon, Renée-Claire

Nom
Le Bayon, Renée-Claire
Affiliation principale
Email
claire.lebayon@unine.ch
Identifiants
https://libra.unine.ch/handle/123456789/319
_
0000-0002-1237-497X

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  • Publication
    Accès libre
    Earthworms, Plants, and Soils
    (New-York: John Wiley and Sons, Inc., 2021)
    Le Bayon, Renée-Claire 
    ;
    Bullinger-Weber, G
    ;
    Schomburg, Andreas Cédric 
    ;
    Turberg, Pascal
    ;
    Brunner, Philip 
    ;
    Schlaepfer, Rodolphe
    ;
    Guenat, Claire
    The importance of engineers is increasingly recognized in soil science because of their implication in most important pedological processes. Furthermore, they contribute to ecological functions provided by soils in both natural and human‐modified environments. In this review, we focus on the role of two ecosystem engineers: (1) plants, their root system, and associated microorganisms and (2) earthworms. First, we explain why they are considered as major soil engineers, and which variables (texture, porosity, nutrient, and moisture dynamics) control their activities in space and time (hotspots and hot moments). Then, their roles in three processes of soil formation are reviewed, namely, rock and mineral weathering, soil structure (formation, stabilization, and disintegration), and bioturbation. For each of them, the involved mechanisms that occur at different spatial scales (from local to landscape) are presented. On one hand, tree uprooting plays a key role in rock weathering and soil profile bioturbation. In addition, living and dead roots also contribute to rock alteration and aggregation. On the other hand, earthworms are mainly involved in the formation of aggregates and burrows through their bioturbation activities and to a less extent in weathering processes. The long‐term effects of such mechanisms on soil heterogeneity, soil development, and pathways of pedogenesis are discussed. Finally, we show how these two main ecosystem engineers contribute to provisioning and regulating services. Through their physical activities of burrowing and soil aggregation, earthworms and plants increase plant productivity, water infiltration, and climate warming mitigation. They act as catalysts and provide, transform, and translocate organic matter and nutrients throughout the soil profile. Finally, due to inter‐ and intraspecific interactions and/or symbiosis with microorganisms (arbuscular fungi, bacteria), they enhance soil fertility, decrease parasitic action, and bioremediate some pollutants. Future research is, however, still needed for a better understanding of the relationships between adequate soil management, agricultural practices, and soil biota in a perspective of relevant maintenance and durability of ecological services.
  • Publication
    Accès libre
    Earthworms as Ecosystem Engineers: A Review
    (New York: NOVA Science Publishers, 2017)
    Le Bayon, Renée-Claire 
    ;
    Bullinger-Weber, Géraldine 
    ;
    Schomburg, Andreas Cédric 
    ;
    Turberg, Pascal
    ;
    Schlaepfer, Rodolphe
    ;
    Guenat, Claire
  • Publication
    Accès libre
    Climate Change in the Underworld: Impacts for Soil-Dwelling Invertebrates
    (New York: Wiley Online library, 2016)
    Hiltpold, Ivan 
    ;
    Johnson, Scott N.
    ;
    Le Bayon, Renée-Claire 
    ;
    Nielsen, Uffe N.
    This chapter reviews and discusses the impact of elevated atmospheric CO2 and climatic changes on three of the functionally most important invertebrate taxa in soil ecosystems: nematodes, insects, and earthworms. The effects of climate and atmospheric CO2 change on soil abiotic conditions vary and numerous biotic feedbacks occur. Many soil‐dwelling insects are herbivores and devastate crops, which impact human societies through yield decreases; therefore an understanding of how climate change will affect their pest status is essential. The chapter discusses potential broader impacts of soil nematode community responses to climate change on ecosystems. Soil‐dwelling insects that feed on roots are usually the juvenile stages of insects that live aboveground as adults. These soil invertebrates can reach astonishing densities, with root‐feeding cicadas of deciduous forests of North America having the largest collective biomass per unit area of any terrestrial animal.
  • Publication
    Accès libre
  • Publication
    Accès libre
    Role of soil macrofauna in P cycling
    (NY, USA: Springer, 2011)
    Chapuis-Lardy, L
    ;
    Le Bayon, Renée-Claire 
    ;
    Brossard, Michel 
    ;
    Lopez-Hernandez, D
    ;
    Blanchard, E
    ;
    Bünemann, E.K
    ;
    Oberson, A
    ;
    Frossard, E
  • Publication
    Accès libre
    A method sheet on microcosms
    (Zürich: COST WSL, 2006)
    Le Bayon, Renée-Claire 
    ;
    Jansa, J.
    ;
    Frossard, E.
  • Publication
    Accès libre
    Quantifying the effects of earthworms on soil aggregation and porosity
    (Boca Raton: CRC Press LLC, 2004)
    Shipitalo, M.J.
    ;
    Le Bayon, Renée-Claire