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within Food Webs

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within Food Webs

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  1. A wide variety of insect species (~70%) harbour microbial organisms (i.e. endosymbionts) known to affect their host life-history traits, including dispersal and egg-laying behaviour. However, research has mostly focused on single insect species or laboratory model systems, and has been neglecting endosymbionts within natural insect communities and/or across the landscape. We are therefore missing a complete understanding of how ecological traits, taxonomy and food web structure may affect the distribution of endosymbionts within insect metacommunities. Symbionts within Food Webs We are looking for a highly motivated student (Master project) to collect insect samples in the Finnish Archipelago (Wattkast Island, close to Korpo) and conduct molecular experiments (DNA extractions, PCRs, …) to test for the presence of endosymbionts, such as Wolbachia sp., in the different species of the insect food web on the oak tree Quercus robur. The project will be co-supervised by Anne Duplouy and Ayco Tack from the Metapopulation Research Group (MRG), University of Helsinki, Finland and the University of Stockholm, Sweden. Project involves Outcomes • Large field collection of insects • Learn about basic molecular experiments (DNA extraction, PCR, gel electrophoresis) • Learn about host-symbiont systems and insect food webs • Thesis report (MSc) • Publication in a scientific journal • A weekend/week on the Island of Wattkast to sample insects on oak trees • Molecular work at Viikki campus (MRG) • Analyzing the data • Writing report (English) Be part of an extremely active research group Send your CV and a letter of motivation (or any questions!) to: ayco.tack@helsinki.fi and anne.duplouy@helsinki.fi www.plantmicrobeinsect.com www.anneduplouy.net

  2. A wide variety of insect species (~70%) harbour microbial organisms (i.e. endosymbionts), known to affect their host life-history traits, including dispersal or egg-laying behaviours. However, research has mostly focused on single insect species or laboratory model systems, and has been neglecting endosymbionts within natural insect communities and/or across the landscape. We are therefore missing a complete understanding of how ecological traits, taxonomy and food web structure may affect the distribution of endosymbionts within insect metacommunities. Symbionts withinFood Webs We are looking for a highly motivated student (Master project) to collect insect samples in the Finnish Archipelago (Wattkast island, close to Korpo) as well as molecular experiments (DNA extractions, PCRs, …) to test for the presence of endosymbionts, such as Wolbachia sp., in the different species of the insect food web of the oak tree Quercusrobur. Co-supervised by Anne Duplouy and Ayco Tack from the Metapopulation Research Group (MRG), University of Helsinki, Finland and the University of Stockholm, Sweden. Project involves Outcomes • A weekend/week on the Wattkast island • Collecting insects on wild oak trees • Molecular work at the Viikki campus • Analyzing the data • Writing report (English) • Large field collection of sample • Learn about basic molecular experiments (DNA extraction, PCR, gel electrophoresis) • Learn about host-symbiont systems and insect food webs • Thesis report (MSc) • Publication in a scientific journal Be part of an extremely active group. Send your CV and a letter of motivation to: ayco.tack@helsinki.fi and anne.duplouy@helsinki.fi

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