0000000000004796

AUTHOR

Henri Frochot

Bird communities as indicators of stream quality

Riparian communities of birds are characterized by a large number of species. Among these, some species depend closely on the running water, whereas other species depend on connected wet habitats or linear forests. For fifteen years, we have censused breeding birds on a 2500 km length of river course. The results underlined the importance of (i) the upstream-downstream gradient and (ii) the effects of the landscape characteristics of the valley on the structure of bird communities. In addition, our results showed that landscape structure may be described with a limited number of variables measured from field work or from analyses of satellite data. The bird census method used (IPA, spot abu…

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L’agroforesterie pour sauver la culture de la truffe.

Comment sauver le diamant noir du réchauffement climatique ? À Tarsul, Henri Frochot trufficulteur réalise des essais pour adapter cette culture au changement du climat, en lien avec l’INRAE (Institut national de recherche pour l’agriculture, l’alimentation et l’environnement) de Dijon et l’association de la truffe de Bourgogne.

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Fine-scale spatial genetic structure analysis of the black truffle T uber aestivum and its link to aroma variability

Truffles are symbiotic fungi in high demand by food connoisseurs. Improving yield and product quality requires a better understanding of truffle genetics and aroma biosynthesis. One aim here was to investigate the diversity and fine-scale spatial genetic structure of the Burgundy truffle Tuber aestivum. The second aim was to assess how genetic structuring along with fruiting body maturation and geographical origin influenced single constituents of truffle aroma. A total of 39 Burgundy truffles collected in two orchards were characterized in terms of aroma profile (SPME-GC/MS) and genotype (microsatellites). A moderate genetic differentiation was observed between the populations of the two o…

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