Université de Bordeaux
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Séminaire Biogeco - Inra Pierroton

27/01 : 11h

Un séminaire Biogeco se tiendra au bâtiment Airial à l'Inra Pierroton à 11 h.

Ayco Tack et Pil Rasmussen de l'université de Stockholm présenteront leur travaux.

Ayco Tack : The impact of dispersal, genotype and environment on an insect and pathogen community on oak

Pil Rasmussen : Soil biota mediate the ecology and evolution of aboveground species interactions

Publié le vendredi 27 janvier 2017

Un accueil café-croissant est prévu à 10 h 45.

Résumé :

Ayco Tack: The impact of dispersal, genotype and environment on an insect and pathogen community on oak

Dispersal, environment and genetic variation may all play a role in shaping the spatial and temporal dynamics of insect and pathogen communities. Yet, in natural systems, their relative importance remains unresolved. In this talk, I will i) present data from a long-term field survey to characterize the metacommunity dynamics of the specialized insects and pathogens feeding on the pedunculate oak (Quercus robur) and ii) give an overview of experimental work targeting the mechanisms behind the observed patterns. Overall, our findings emphasize that dispersal, host genotype and the environment may jointly shape the spatial dynamics of plant-feeding insects and pathogens on oak.

Pil Rasmussen: Soil biota mediate the ecology and evolution of aboveground species interactions

The belowground biotic environment can have a profound impact on the ecology and evolution of aboveground species interactions. However, we lack insights in the distribution of the belowground plant-associated microbial community, and how this belowground heterogeneity affects the ecology and evolution of aboveground species interactions. In this talk, I will i) describe the spatial distribution of the belowground community associated with multiple perennial herbs, ii) demonstrate how this belowground variation affects plant resistance against pathogens and insects, and iii) give an example of how the belowground community shapes the evolution of plant resistance against natural enemies. Overall, these findings illustrate the impact of spatial variation in the belowground biota on the ecology and evolution of aboveground species interactions.



HAUT