Abstract
Motivated by recent findings of enhanced species survival when fragmented habitats are reconnected through narrow strips of land (Pimm and Jenkins, 2019), we study the effect of a corridor connecting two regions on the lifetime of three models exhibiting extinction/survival phase transitions: the basic contact process (CP), the diffusive contact process, and the two-species contact process (2SCP) using Monte Carlo simulations. For the basic contact process we also present semianalytic solutions on complete graphs. We find that connecting two regions increases the lifetime when the reproduction rate is greater than its critical value. The lifetime enhancement increases with the reproduction rate; for square regions, wide and short corridors provide the best enhancement. • Simple model to study the effect of connecting habitable fragments. • Corridors have a positive impact on the persistence of populations. • Populations with a higher diffusion rate are less sensitive to corridor format. • Two species with a positive interaction enjoy greater benefit from corridors.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call