A new approach for positive almost periodic solutions to a class of Nicholson’s blowflies model

This paper is concerned with the existence of almost periodic solutions for a class of Nicholson’s blowflies model. By transforming the model into an equivalent integral equation, and using a fixed point theorem in cones, we establish a new result about the existence of positive almost periodic solutions for the model. Comparing with some earlier works on almost periodic solutions for Nicholson’s blowflies models, our approach is novel.