discours JC Gardin VF

Evolution of ageing, costs of reproduction and the fecundity–longevity trade-off in eusocial insects

Pierre BLACHER Former Fyssen 2014 & Timothy J. Huggins, Andrew F. G. Bourke Proceedings B 2017; Eusocial insects provide special opportunities to elucidate the evolution of ageing as queens have apparently evaded costs of reproduction and reversed the fecundity–longevity trade-off generally observed in non-social organisms. But how reproduction affects longevity in eusocial insects has rarely […]

Croix sens dessus-dessous

Cyril Menta, Former Fyssen 2017 Images et re-vues Croix sens dessus-dessous Circulation et transformations d’une forme symbolique chez les Indiens pankararé et pankararu – Nordeste du Brésil Mots-clés :Croix, transmutation, variation iconographique, transmission interethnique, convergence rituelle, Indiens pankararu, Indiens pankararé Dans le Nordeste du Brésil, un processus récent de convergence rituelle des peuples indigènes succède […]