J 2019

Allee Effect in Prey versus Hunting Cooperation on Predator - Enhancement of Stable Coexistence

SEN, Deeptajyoti; S GHORAI a M BANERJEE

Základní údaje

Originální název

Allee Effect in Prey versus Hunting Cooperation on Predator - Enhancement of Stable Coexistence

Autoři

SEN, Deeptajyoti; S GHORAI a M BANERJEE

Vydání

International Journal of Bifurcation and Chaos, SINGAPORE, WORLD SCIENTIFIC PUBL CO PTE LTD, 2019, 0218-1274

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 2.469

Označené pro přenos do RIV

Ne

Klíčová slova anglicky

Allee effect; hunting cooperation; stability; bifurcation; global dynamics

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 21. 1. 2022 14:31, Deeptajyoti Sen, Ph.D., M.Sc.

Anotace

V originále

Predator foraging facilitation or cooperative hunting increases per predator consumption rate as predator density increases. This affects predator extinction in a prey-predator interaction model when the predator density is low. This is an indication of Allee effect in predator's growth rate. Here, we take a Gause type model with a generalized type II functional response which depends on both prey and predator densities. We also assume that prey's growth is subjected to Allee effect. Strong Allee effect in prey's growth rate enhances the stability of the coexisting steady state. A region is found in a two-parameter plane where the coexisting steady state is a global attractor when the prey's growth is subjected to weak Allee effect. In addition, codimension two bifurcation points (cusp and Bogdanov-Takers points) have also been found in the bifurcation diagram.