center for synthesis
and analysis of biodiversity

A centre created and developed by the FRB
BETSIsmallPixBiological and Ecological functional Traits of Soil Invertebrates (BETSI) to link species assemblages to environment factors

Project leader : Mickaël Hedde, INRA Versailles - Grignon

Post doctorant : Benjamin Pey

15 participants : Mehdi Belkacem, INRA; Yvan Capowiez, INRA; Jérôme Cortet, INRA; Thibaud Decaëns, ECODIV; Louis Deharveng, CNRS-MNHN; Florence Dubs, IRD; Fabien Grumiaux, Université de Lille 1; Muriel Guernion, Université de Rennes 1; Johanne Nahmani, Université Paul Verlaine de Metz; Alain Pasquet, IPHC-DEPE; Céline Pelosi, INRA; Céline Pernin, LGCgE – Lille Nord de France; Benjamin Pey, INRA; Jean-François Ponge, CNRS-MNHN; Sandrine Salmon, CNRS-MNHN


link to the data products of the group



Functional traits of organisms are central to understanding their biological and ecological requirement in the environments in which they live. Soil invertebrates strongly involved in soil functioning and thus the provision of ecosystem services. The BETSI project aims at synthesizing and organizing information on biological and ecological functional traits of soil invertebrates. The originality of this project lies in the creation of a consortium of partners covering a wide spectrum of organisms from soil macro- and mesofauna and thus a wide spectrum of biological strategies. The approach will be (i) to define the ontology of the studied traits, (ii) to collect information and organize them into a multi-trait multi-species database, (iii) to harmonize their encoding format to facilitate statistical data analyses. The database obtained will allow to understand the basic biology and ecological response of soil invertebrates in different environmental filters acting on several scales. The existence of such a database is a prerequisite to developments of (i) concepts related to community assembly and (ii) specific biomonitoring tools for 'soil' systems.

Project summary in french (pdf)