• Maria Riolo
  • April 4, ***1 PM***
  • 2866 East Hall

Parasitoids, organisms that spend part of their life-history attached to a single host, which they kill or sterilize, are common among insects and their natural enemies. Much of the modeling of populations of hosts and parasitoids has used variations on the Nicholson-Bailey model, a pair of coupled difference equations.

In this talk I will discuss some of the behaviors of the Nicholson-Bailey model on a lattice with local dispersal of hosts and parasitoid and how spatial heterogeneities in host fecundity may effect persistence and patterns of population dynamics.