Prof. YEUNG Wing Kay, DavidDavidProf. YEUNG Wing Kay2021-02-242021-02-242010International Journal of Algebra, 2010, vol. 4(12), pp. 561-568.1314-75951312-8868http://hdl.handle.net/20.500.11861/6429Variants of the Lotka-Volterra equations have been frequently used to describe population dynamics with predator-prey relations. However, real ecosystems are often probabilistic systems rather than deterministic paradigms. In a stochastic framework, the issue of persistence could be best studied through the stationary probability density of the system. This technical note presents a class of circular stochastic food chains with general functional structures of predation rates and closed-form solution for its stationary probability density.enPeer Reviewed Journal Article