Image de Eryxson Fonseca

Soil, a poorly understood reservoir of biodiversity

The soil is home to a large number of species of animals and microorganisms, most of which are poorly understood, and therefore numerous interactions. The field school in tropical ecology (ECOTROP) has contributed to the study of soil biodiversity and trained many students in Africa.
ECOTROP is a field school which brings together students and researchers of various origins on the same natural site. The goal of ECOTROP is to train on themes related to the study and conservation of biodiversity.

9:15 - 9:35

Opening of the Montpellier Global Days

by Philippe Augé , president of the University of Montpellier

Welcome and Introduction

Presenters: Rutger de Wit (CNRS), Philippe Jarne (CNRS) & Daniel Barthélémy (Cirad)

9:35 - 9:55

ECOTROP: training a new generation of scientists on biodiversity

Presenter: Stephan Ntie (Laboratory of Molecular and Cellular Biology (LABMC), Department of Biology, University of Sciences and Techniques of Masuku (USTM), BP 941, Franceville, Gabon)

Authors: Alban-Michel Nguéma Nguéma, Philippe Legall and Thibaud Decaens.

 

ECOTROP is a field school that trains students in the study and conservation of biodiversity. Each year, 20-30 people come together on the same natural site for two weeks to collect and analyze data. This system has already enabled about twenty students to pursue a doctorate, the production of 14 scientific publications, and several collaborations.

 

9:55 - 10:15

Resistance and resilience of soil biodiversity after tree felling: the case of rubber cultivation in Côte d'Ivoire

Presenter: Aymard K. Kouakou (ARTS, IRD, Eco & Sols scholarship holder)

Authors: Aymard K. Kouakou, Kolo Yeo, Frédéric Gay, Alain Brauman

10:15 - 10:35

Earthworms: an asset for tropical agriculture

Presenter: Onja Ratsiatosika (UMR Functional Ecology and Biogeochemistry of Soils and Agroecosystems, Montpellier, France / Laboratory of Radio-Isotopes, University of Antananarivo, Madagascar)

Earthworms are involved in the ecosystem services provided by the soil. Numerous experiments have shown the positive effect of earthworms on plant production, carbon sequestration and the regulation of pathogens. Biofertilization based on earthworms is a promising alternative for low-input agrosystems in tropical environments.

10:35 - 10:55

Écotrop: springboard for a doctoral thesis

Intervention of Alban-Michel Nguema

(doctoral student in Rennes, ECOTROP, USTM, Gabon)

Authors: Alban-Michel Nguéma Nguéma, Philippe Legall and Thibaud Decaens.

Écotrop was an opportunity for me to meet and work with researchers and students from other institutions on themes that enabled me to pursue my doctoral thesis studies.

Holder of a master's degree in ecology in fundamental research, the Écotrop field school was a practical experience that motivated me for a doctoral thesis. Thus, teamwork with researchers specializing in Invertebrates allowed me to establish and maintain relationships that are still part of my professional network in the world of research today.

Alban-Michel Nguéma from an early age has had the opportunity to regularly visit several regions of his country, Gabon. This aroused in him the desire to get to know the forest better; with a particular interest in the diversity and ecology of Arthropods. Thus, for his doctoral thesis, he is working on the spiders of Gabon.

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The experts

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Philippe Jarne

Philippe Jarne is research director at the CNRS, and develops research in evolutionary biology and ecology within the joint research unit Cefe (Center for Functional and Evolutionary Ecology) in Montpellier. He is the leader of the BiodivOc key challenge, funded by the Occitanie region and supported by the University of Montpellier (and around fifteen academic partners), which supports research on biodiversity, from the fundamental to societal implications.

https://www.researchgate.net/profile/Philippe-Jarne

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Daniel Bathélémy

Daniel Barthélémy is a botanist specializing in plant architecture and an expert in botany and plant biodiversity, particularly tropical.

From 2001 to 2010, he was deputy director then director of the joint research unit (UMR) “botAnics and bioinforMatics of Plant Architecture” (AMAP). 

He is INRA Research Director and, since 2010, seconded to CIRAD where he served as Scientific Director and of CIRAD's “Biological Systems” (Bios) department until 2018.

Since 2018, he has been in charge of the mission (notably in charge of the “Biodiversity” theme) with the Directorate General of CIRAD and forerunner of the “Agriculture, environment, biodiversity” research center at Isite Muse, University of Montpellier.

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Rutger de Wit

Rutger de Wit began his scientific career as a microbial ecologist and biogeochemist focusing his research on photosynthetic biofilms. As a CNRS researcher, he studied the ecology of coastal ecosystems, and in particular coastal lagoons. Thanks to collaborative research, he gradually broadened his approach from these coastal environments to integrative studies of socio-ecosystems. Since February 2021, he has been Director of LabEx CeMEB.

https://www.researchgate.net/profile/Rutger-De-Wit

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Stephan Ntie

Stephan Ntie is interested in studying the diversity of Central African mammals. To do this, he uses population genetics to better understand diversification processes and associate taxa such as duikers and rodents with different types of forest habitats.

https://scholar.google.com/scholar?hl=fr&as_sdt=0%2C5&q=stephan+ntie&btnG=

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Aymard
K. Kouakou

Aymard K. KOUAKOU of Ivorian nationality is a doctoral student (3rd year) at NANGUI ABROGOUA University at the Laboratory of Ecology and Sustainable Development in partnership between IRD (ECO & SOLS, Montpellier). He is interested in soil biodiversity (bacteria, fungi, nematodes, springtails, macrofauna), their ecological interactions and their role in soil functioning.

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Onja Ratsiatosika

With a doctorate in soil ecology and agronomy, Onja has conducted research on earthworms and ecosystem services in Madagascar.  His research themes focus on agroecology, soil ecology and climate change. Currently, she is a post-doctorate at UMR Eco & Sols.

https://www.researchgate.net/profile/Onja-Ratsiatosika/research

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Alban-Michel Nguema

 From an early age, Alban-Michel Nguéma has had the opportunity to regularly visit several regions of his country, Gabon. This aroused in him the desire to get to know the forest better; with a particular interest in the diversity and ecology of Arthropods. Holder of a master's degree in ecology in fundamental research, for his doctoral thesis, he works on the spiders of Gabon.