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J. Bifurcation Chaos"],"published-print":{"date-parts":[[2025,7]]},"abstract":"<jats:p> An intraguild predation model with Holling II functional response is studied. Previous research has studied the consistent persistence of species, the non-negative boundedness of solutions, and thoroughly analyzed the existence and stability of boundary equilibria, but the existence of interior equilibria and the bifurcation of equilibria of system are unknown. In this paper, we consider the existence conditions for the interior equilibria with parameters in [Formula: see text] semialgebraic space. We find that system has at most seven and at least two coexisting equilibria, and give conditions for having the exact number of equilibria. Furthermore, we investigate the local stability and global stability of the interior equilibria. Moreover, we also verify the existence of transcritical bifurcations and Hopf bifurcations. 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