Séminaire ECOBIO - Ella DALY (Ecobio)

"Non-trophic interactions reduce modularity in a biome-wide food web"

Séminaire ECOBIO - Ella DALY (Ecobio)
Vendredi 16 septembre, 13h00
Observatoire des Sciences de l'Univers de Rennes (OSUR) - Campus de Beaulieu, Bâtiment 14B, Salle de conférence

To make the most of new network methods and existing ecological knowledge, we assembled all known ecological interactions from natural history and ecology literature in the 600-million-hectare boreal region of North America. Our analysis focused on the effects of non-trophic interactions for network modularity, which is well-known to relate to how perturbations flow through networks and can have ‘real world’ implications in addition to being of theoretical interest. Analysis of our dataset, which contains 423 species connected by 5037 interactions spanning the vast boreal region of North America, revealed remarkable differences in network topology when non-trophic interactions were considered in addition to the trophic interactions.