M/F postdoc Insectes Aquatiques Rennes

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M/F postdoc Insectes Aquatiques Rennes

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Job description

Offer DescriptionThis post-doctorate is part of the ANR (French National Research Agency) STRANGE project (2023-2027) on the ecosystem services provided by aquatic insects in adjacent terrestrial environments. While the STRANGE project focuses on permanent aquatic environments, the aim of this post-doctorate is to quantify the biomass of aquatic insects (notably Diptera) emerging from temporary aquatic environments (ditches, flooded areas, wetlands, flooded grasslands, etc.) in order to model their fluxes in agricultural landscapes and estimate the associated ecosystem services (depollution by N and P export, fertilisation, support for food webs and pollination). To do this, it is necessary to identify all the temporary sources of aquatic insect emergence (in time and space), their diversity (floodable areas, ditches, etc.), their contribution to insect production and their hydrological functioning over time (i.e., seasons). The characterisation of these temporary aquatic areas will make it possible to quantify the biomass of insects produced throughout seasonal ecological monitoring and to model the associated flows. The main hypothesis is based on the fact that, compared with permanent habitats, temporary aquatic habitats represent an area where aquatic insect biomass production is currently largely underestimated. The second hypothesis is that the type of water supply to these environments (flooding or groundwater upwelling) will have a major impact on the temporal dynamics and therefore the production of biomass, the nature of the species that colonise them and therefore the ecosystem services provided, particularly in terms of nutrient flows (depollution, fertilisation).(1) Characterisation of temporary aquatic areas in collaboration with geographers specialising in remote sensing
(2) The quantification of the biomass and emerging diversity of these temporary aquatic environments, mainly Diptera, which to date have never been quantified on a landscape scale. This is a scientific front at the interface between terrestrial ecology and aquatic ecology.
(3) The estimation of ecosystem services associated with aquatic insect fluxes. While very recent research has made it possible to model aquatic insect fluxes in a landscape on the basis of permanent aquatic environments, supplementing these tools with data relating to temporary aquatic environments would provide a much more exhaustive view of the impact of aquatic productivity on terrestrial environments.

The person recruited will be affiliated with UMR CNRS 6553 ECOBIO ( ). The research unit ECOBIO covers all areas of ecology: evolutionary ecology, behavioural ecology, community ecology, functional ecology and landscape ecology. The person recruited will benefit from the support of the technical platforms PEM (for molecular analyses), Ecolex (for support in field protocols and an optical center for the identification) and the D2T platform for the analysis of images obtained by drone. The person recruited will also be assisted by an engineer to carry out the technical parts of the project concerning the GIS analyses relating to the spatial modelling of the results.Where to apply WebsiteRequirementsResearch Field Environmental science Education Level PhD or equivalentResearch Field Biological sciences Education Level PhD or equivalentResearch Field Geosciences Education Level PhD or equivalentLanguages FRENCH Level BasicResearch Field Environmental science Years of Research Experience NoneResearch Field Biological sciences Years of Research Experience NoneResearch Field Geosciences Years of Research Experience NoneAdditional InformationEligibility criteriaThe candidate must have a PhD in terrestrial and/or aquatic ecology. Since, aquatic insect assemblages in temporary aquatic environment are mainly constitute by Diptera, a minimal experience on identification and/or ecology of Diptera would be greatly appreciated. Insects will be identified in the laboratory (on the basis of morphological criteria) and/or using molecular tools (barcoding and/or metabarcoding). However, experience in using molecular tools is not necessary, as training courses can be provided in our laboratory.
The candidate must have knowledge of data processing and an interest in basic and applied research. An aptitude for fieldwork, laboratory work and data processing is essential, as are good English writing skills.Website for additional job detailsWork Location(s)Number of offers available 1 Company/Institute Écosystèmes, biodiversité, évolution Country France City RENNES GeofieldContact CityRENNES WebsiteSTATUS: EXPIREDShare this page

Expected salary

Location

Rennes, Ille-et-Vilaine

Job date

Fri, 10 Jan 2025 23:25:56 GMT

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