Figure 2From: Stability and bifurcation in a single species logistic model with additive Allee effect and feedback controlThe phase portraits of system (1.6) when \(m>a\): (a) Two distinct positive equilibria \(E_{1}\) and \(E_{2}\). \(E_{1}\) is a saddle and \(E_{2}\) is locally asymptotically stable. (b) Unique positive equilibrium \(E_{3}\) which is a saddle-node. (c), (d), (e) No positive equilibriaBack to article page