Stephen Gourley’s paper on mathematical biology appears in SIAM J Applied Maths

The paper “Pauses of larval development and their consequences for stage-structured populations“, co-authored by Hermann Brunner (Hong Kong Baptist University), Stephen Gourley, Rongsong Liu (University of Wyoming), and Yanyu Xiao (University of Cincinnati), has been published in the SIAM Journal of Applied Mathematics. The paper considers some novel predictions of a mathematical model for a stage-structured insect species that undergoes diapause if faced with strong intraspecific competition among larvae. The model consists of a system of two delay differential equations with a state-dependent time delay of threshold type.  Further detail and a link to the published paper can be found here