Qualitative analysis of a stochastic ratio-dependent predator–prey system

Dynamical behavior for a stochastic two-species competitive model

“…All the parameters r i ; a ij ; c i ; d i .i; j D 1; 2/ are positive constants. Many authors argue [12][13][14][15][16][17][18][19][20][21][22][23] that in the real word the populations usually live in changing circumstances which have important effect on the growth rates. So we can think that the growth rate can be expressed as an average rate plus an error term.…”

A remark on one non-autonomous stochastic Gompertz model with delay

“…So it maybe of interest to all related researchers. When the persistence and extinction are studied for the stochastic population models, the following method is always applied (see [6,7] for example).…”

Stability and bionomic analysis of fuzzy parameter based prey–predator harvesting model using UFM

“…This phenomenon can be analyzed incorporating stochasticity and, in this case, the solution is also stochastic in nature. To tackle environmental variations, many authors use stochastic approach [18][19][20][21][22][23][24][25][26][27][28][29]. In stochastic approach, the imprecise parameters are considered as random variables with some known probability distributions.…”