POSTDOCTORAL POSITION IN CRITICAL TRANSITIONS IN PEST/NATURAL ENEMIES DYNAMICS A one year, possibly extendable to two, post doc is currently available for a project involving critical transitions in pest/natural enemies systems in the coffee agroecosystem. About half the time will be in the field in Chiapas, Mexico and the other half doing analytical work in Ann Arbor Michigan. Requirements are a PhD in biology or environmental sciences or a related field. Experience in tropical field work desirable. The field site is Finca Irlanda on the south Pacific side of Chiapas where a research program has been underway for the past 20 years. Ability to speak Spanish will be useful for this position. Send CV and letter of interest to John Vandermeer ([log in to unmask]<mailto:[log in to unmask]>) and Ivette Perfecto ([log in to unmask]<mailto:[log in to unmask]>).