RT Journal Article
T1 Global dynamics of a predator-prey system with immigration in both species
A1 Diz Pita, Erika
AB In nature, the vast majority of species live in ecosystems that are not isolated, and the same is true for predator-prey ecological systems. With this work, we extend a predator-prey model by considering the inclusion of an immigration term in both species. From a biological point of view, that allows us to achieve a more realistic model. We consider a system with a Holling type Ⅰ functional response and study its global dynamics, which allows to not only determine the behavior in a region of the plane, but also to control the orbits that either go or come to infinity. First, we study the local dynamics of the system, by analyzing the singular points and their stability, as well as the possible behavior of the limit cycles when they exist. By using the Poincaré compactification, we determine the global dynamics by studying the global phase portraits in the positive quadrant of the Poincaré disk, which is the region where the system is of interest from a biological point of view.
PB AIMS
SN 2688-1594
YR 2024
FD 2024
LK https://hdl.handle.net/10347/39073
UL https://hdl.handle.net/10347/39073
LA eng
DS Minerva
RD 24 abr 2026