2019
Allee Effect in Prey versus Hunting Cooperation on Predator - Enhancement of Stable Coexistence
SEN, Deeptajyoti; S GHORAI a M BANERJEEZákladní 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
UT WoS
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.