Open AccessMODELING THE DYNAMICS OF THE PREDATOR- PREY COMMUNITY WITH THE PREY AGE STRUCTURE AND THE WITHDRAWAL
Author(s) -
O.L. Revutskaya
Publication year - 2021
Publication title -
regionalʹnye problemy
Language(s) - English
Resource type - Journals
eISSN - 2618-9593
pISSN - 1605-220X
DOI - 10.31433/2618-9593-2021-24-2-3-209-212
Subject(s) - predation , predator , age structure , population , dynamics (music) , ecology , population structure , discrete time and continuous time , mathematics , biology , demography , statistics , psychology , sociology , pedagogy
The paper studies the dynamic modes of the predator-prey community discrete-time model taking into account the prey age structure and the withdrawal. The investigated system is a modification of the Nicholson-Bailey model. The author has considered the cases of withdrawal from the prey younger or older age class, or from the prey population of two- age classes, or from the predator population. It is studied conditions of stable coexistence of interacting species and scenarios of the population size oscillatory modes occurrence.