Oral title: Mean-motion resonances with eccentric planets as a source of exocomets and 
exozodiacal dust belts

Oral abstract: Exozodis are thought to originate from cometary activity, which is difficult 
to maintain over the age of an old (>100Myr) system. Mean-motion resonances with planets on 
eccentric orbits can produce comets, potentially with delays >100Myr, thus providing a 
possible explanation for exozodis in old systems. We explore here this mechanism as a 
function of the characteristics of the eccentric planet.