Présentation des productions
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[hal-01722606] L’Observatoire hommes–milieux international Tessékéré (OHMi) : un outil de recherche pour étudier la complexité des écosystèmes arides du Sahel
Nov 26, 2021 | 18:36 pm[...]
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[hal-03424138] Observatoire Hommes-Milieux International (OHMi) Tessékéré
Nov 26, 2021 | 03:46 amSitué dans le Ferlo, région du nord du Sénégal, le territoire étudié par l’OHMi Tessékéré est caractéristique du Sahel africain. Cette vaste zone de transition bioclimatique, entre le domaine saharien au nord et les savanes soudaniennes au sud, est caractéristique des crises écologiques et humaines consécutives aux épisodes de sécheresse qui touchent l’Afrique depuis plusieurs décennies. La mise en oeuvre de l’initiative Grande Muraille verte, approuvée en janvier 2007 par l’Union africaine, représente une action combinée de lutte contre la sécheresse et de développement rural, sans précédent dans cette région. L’objet de l’OHMi est d’étudier, par l’approche intégrative des systèmes sociaux-écologiques sahéliens, les processus et les interactions à l’oeuvre. Il s’agit en particulier d’observer et d’évaluer l’adaptabilité et la résilience du système selon quatre axes : "Eau, Sol, Air", "Biodiversité (faune et flore)", "Systèmes sociaux" et "Santé".
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[hal-01825625] Sévérité et ampleur de la carie dentaire chez les populations rurales du Ferlo au Sénégal
Nov 25, 2021 | 08:22 am[...]
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[hal-01722639] Comparing genetic diversity of Sitophilus zeamais (Motchulsky) populations sampled in several agro-ecological areas between Central African Republic and Senegal
Nov 22, 2021 | 09:46 amMaize is attacked by many post-harvest pests including Sitophilus spp and Prostephanus spp, which causes remarkable loss during storage. Approximately 30 to 40 % loss in the absence of treatment has been reported worldwide. This study compare genetically Central African and Senegalese populations of Sitophilus zeamais from various agroecological zones using 3 markers namely cytochrome b, cytochrome oxidase and nuclear 28S gene. S. zeamais samples were analyzed on both of two other sites 34 for the 28S gene; 68 for cytochrome b and 36 for the cytochrome oxydase. Results analyzed by AMOVA have shown high genetic variation outside population of each country (6.17 % with Cyt b; 21.45 % with 49.83 % and COI in the case of 28S) and low within subpopulations (-10.06 % for Cyt b, 9.36 % for the COI and-15.23 % for 28S). Majority haplotype is shared between the two populations for 28S and cytochrome b[…]
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[hal-03341181] Vision and first actions of the SO-DRIIHM open science project
Nov 21, 2021 | 21:54 pmDans le cadre du mouvement international de la science ouverte, le projet ANR SO-DRIIHM traite de la structuration, du partage et de l’ouverture des données produites au sein d’un dispositif rassemblant treize observatoires (OHM) du CNRS-INEE : le Dispositif de Recherche Interdisciplinaire sur les Interactions Hommes-Milieux soutenu par l’ANR (LabEx DRIIHM 2012-2025). Le projet ANR SO-DRIIHM (octobre 2020 - mars 2023) est l'un des 25 lauréats de l'appel Flash science ouverte de l'ANR. L'objectif de la présente communication orale est de montrer les orientations stratégiques et les premières réalisations à la communauté scientifique du LabEx DRIIHM dans le cadre de son symposium international des 6-8 septembre 2021. Il s'agit également d'une opportunité de promotion de la science ouverte auprès d'un large public, en accord avec l'un des deux objectifs du projet. Dans un premier temps, le contexte international et français en matière de science ouverte est décrit, présentant notamment les[…]
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[hal-02322991] SO-DRIIHM: promoting Open Science within the LabEx DRIIHM and improving its Research Data Infrastructure
Nov 17, 2021 | 12:31 pmThe "SO-DRIIHM" project has just obtained funding from the Flash Call "Open Science: research practices and open research data" proposed by the ANR in 2019. It is managed by a group of geomatics and IT engineers within the CNRS interdisciplinary network (LabEx DRIIHM) of 13 Human-environment observatories (OHMs). The objective of this project (May 2020 - April 2022) is to optimize the appropriation of the open science approach by the DRIIHM research community through: •the organisation of awareness campaigns showing the benefits of data sharing and openness; •the co-construction of a more ergonomic and interoperable e-infrastructure, integrating existing tools (metadata geocatalogues, web GIS, photo library, HAL collection, etc.) and accompanying researchers to find, share and (re)use data with the concrete and progressive implementation of the FAIR principles (Findable, Accessible, Interoperable, Reusable). The originality of this project lies in the bottom-up co-construction of the e-infrastructure, involving researchers from the early stages[…]
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[hal-02373055] SO-DRIIHM - Impulser la science ouverte au sein du LabEx DRIIHM : Co-design d'une e-infrastructure intégrant les principes FAIR
Nov 17, 2021 | 12:31 pmDans le cadre du mouvement international de la science ouverte, ce projet traite de la structuration, du partage et de l’ouverture des données produites au sein d’un réseau de treize observatoires (OHMs) du CNRS-INEE : le Dispositif de Recherche Interdisciplinaire sur les Interactions Hommes-Milieux soutenu par l’ANR (LabEx DRIIHM 2012-2025). Il implique près de 1000 scientifiques. De grandes quantités de données hétérogènes sont produites ou collectées dans les domaines des Sciences de la Nature et du Vivant, et des Sciences Humaines et Sociales. Plusieurs initiatives ont été menées au sein du LabEx pour augmenter la visibilité et le partage des données, mettre en relation des équipes scientifiques, favoriser la ré-utilisation de données et potentiellement faire émerger de nouvelles recherches. Un panel d’outils a ainsi été mis en place au fil des années : géo-catalogues de métadonnées, web SIG, photothèque, collections HAL, etc. Cependant, il existe des contrastes importants dans l’alimentation[…]
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[hal-02382056] Promote Open Science within the DRIIHM Interdisciplinary Research Facility on Human- Environment Interactions: Co-design of an e-infrastructure implementing the FAIR Principles
Nov 17, 2021 | 12:31 pmAs part of the international Open Science movement, this project deals with the structuration, sharing and opening of research data in the context of a network of thirteen CNRS-INEE observatories (OHMs): the Interdisciplinary Research Facility on Human-Environment Interactions supported by the ANR (LabEx DRIIHM 2012-2025). This network involves nearly 1000 scientists. Large amounts of heterogeneous data are produced or collected, covering research in Natural and Life Sciences, and Human and Social Sciences. Several initiatives have been carried out within the LabEx DRIIHM to increase visibility and data sharing to connect scientific teams that are not always linked, promote the re-use of data and potentially lead to the emergence of new research topics. A range of tools has been developed over the years: metadata geo-catalogs, web GIS platforms, photo libraries, HAL collections, etc. However, there are significant contrasts in the contribution to these tools and their use between OHMs, and two[…]
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[hal-03258873] The good life in rural and urban Senegal: A qualitative and quantitative study
Nov 16, 2021 | 05:27 amVery few studies have analyzed the influence of the environment, rural or urban, on the notion of good life and subjective well-being in sub-Saharan Africa and none, to our knowledge, has combined qualitative and quantitative methodologies for this purpose. The objectives of this interdisciplinary study were: a) to understand the emic representations of the good life in rural and urban Senegal and; b) to compare the levels and determinants of satisfaction with life between these two populations. This study was carried out in Dakar and in a very isolated rural area in the North East of Senegal: the sylvo-pastoral zone of Ferlo. A total of six focus groups were conducted for the qualitative phase, while the quantitative phase was conducted on representative samples of the populations living in Dakar (N = 1000) and Té ssé ké ré (N = 500). Our results indicate that, against all expectations, life satisfaction is[…]
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[hal-01724102] Nutritional Potential of Two Leafy Vegetables Leptadenia hastata Decne and Senna obtusifolia Link Consumed in Senegal
Nov 3, 2021 | 09:58 am[...]
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[hal-01617308] Questioning capitalistic power structures: a way to reconnect stakeholders with the land?
Nov 3, 2021 | 08:39 amFrom our different research fields, by comparing the relationships between local populations and their territory, we noted some similarities. This paper aims to analyze the relationship between local or indigenous stakeholders and their territory. We thus wondered on the possibilities to create a common framework to represent social dynamics of human groups regarding their management of natural resources. We focus on the evolution of collective behaviors in space and time and process of domination which tend to create a gap between human and their land. Capitalistic colonialism has considerably changed the territorial visions and practices of the people. Philosophical conception of the natural philosophy has shifted from the dependence on the land and resources to a domination of Nature (Gregory, 2001; Kaika 2005; Linton 2010). New centralized power structures appeared legitimizing and promoting the implementation of capitalistic lecture of the territory. In the South of France, the farmers have modified[…]
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[hal-01825626] Climate change and desertification in Africa : The Great Green Wall
Nov 3, 2021 | 08:20 am[...]
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[hal-01723198] Effets des principales essences de la grande muraille verte sénégalaise sur les taux d'azote minéral du sol et la biomasse microbienne
Nov 3, 2021 | 07:38 amAn experiment was conducted over nine months in a field system in northern Senegal in order to determine the effects on soil nitrogen (N) cycling and the microbial biomass-C properties of five plant species proposed for the Senegalese Great Green Wall (GGW): Acacia senegal (L.) Willd., Acacia tortilis var. raddiana (Savi) Brenan, Balanites aegyptiaca (L.) Del., Boscia senegalensis (Pers.) Lam. ex Poir., and Sclerocarya birrea (A. Rich.) Hochst. Soil samples were collected to a depth of 0-10 cm, outside (control) and beneath tree canopies. Microbial biomass, inorganic N content and net mineralization of organic N were determined for the soil samples collected under trees, and compared to soils collected outside tree canopies. The results showed that concentrations of inorganic N and soil microbial biomass-C were generally higher under canopy cover and differed according to species. In May 2014 (end of the dry season), microbial biomass-C was higher under A. senegal[…]
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[hal-03272680] L'OHMi Tessekere
Nov 3, 2021 | 07:29 amSelon les chercheurs du CNRS et de l'UCAD qui ont initié la réflexion sur la mise en oeuvre d'une approche intégrative, pluridisciplinaire et multi-échelles des socio-écosystèmes complexes du Ferlo, il convenait de trouver un outil adéquat suffisamment souple, "doté de flexibilité d'action, de capacité d'autofinancement, d'ancrage dans la société civile, et apte à mettre en oeuvre [cette] interdisciplinarité pragmatique" (Guisse, 2013, p.273). Un Observatoire Homme-Milieux (OHM) pouvait constituer cet outil-là.
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[hal-02311053] Managing and sharing research outputs in the LabEx DRIIHM : The Data DRIIHM group supports you !
Nov 3, 2021 | 07:29 am[...]
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[hal-02961080] Choice, phytochemical composition and antimicrobial activity of tooth rubbing sticks used in Tessékéré (Ferlo, Senegal)
Nov 3, 2021 | 07:14 am[...]
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[hal-02380101] Activités antimicrobiennes des plantes utilisées comme bâtonnets frotte-dents (cure-dents) par les Peul de la commune de Tessékéré (Ferlo Nord, Sénégal)
Nov 3, 2021 | 07:14 am[...]
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[hal-01825622] Chronological Sedentary Growth is Associated with Arterial Hypertension but not with High Glycaemia in Sub-Saharan African Rural Area
Nov 3, 2021 | 07:11 am[...]
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[hal-02936343] Effets de l'application de différents fertilisants sur la fertilité des sols, la croissance et le rendement du mil (Pennisetum glaucum (L.) R. Br. dans la Commune de Gandon au Sénégal
Nov 3, 2021 | 07:07 am[...]
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[hal-02311083] Workshop Timelines : Potentialities of chrono-systemic timelines to co-construct, analyze and communicate on the socio-ecological trajectories of OHMs
Nov 3, 2021 | 05:53 am[...]
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