“…As a result of the analysis of the tritrophic models, the authors presented conditions in the parameters of the analyzed system, under which there exists a stable limit cycle for a system with a functional response of type Lotka Volterra or Holling. This was proved by showing the existence of a Hopf or a Bautin bifurcation ( Castellanos et al, 2018 , Bentounsi et al, 2018 , Blé et al, 2018 , Wang and Yu, 2019 , Dawed et al, 2020 ).…”