Title
Bifurcation Analysis Of A One-Prey And Two-Predators Model With Additional Food And Harvesting Subject To Toxicity
Abstract
In this paper, a three-dimensional one-prey and two-predators model, with additional food and harvesting in the presence of toxicity is proposed. Additional food is being provided to one predator. The dynamics and bifurcations of the system are investigated using center manifold theorem, normal form theory and Sotomayor's theorem. It is proved that the system undergoes transcritical bifurcation, saddle-node bifurcation, Hopf bifurcation, generalized Hopf bifurcation, Bogdanov-Takens bifurcation and cusp bifurcation with respect to different parameters. Bifurcation diagrams of the system with respect to toxic effect and harvesting effect are illustrated. The phase portraits and solution curves are also presented to verify the dynamic behavior. The results show that the combined effect of the factors has the power of transforming simple ecosystems into complex ecosystems.
Year
DOI
Venue
2021
10.1142/S0218127421500899
INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS
Keywords
DocType
Volume
Predator-prey model, saddle-node bifurcation, Hopf bifurcation, Bogdanov-Takens bifurcation
Journal
31
Issue
ISSN
Citations 
06
0218-1274
0
PageRank 
References 
Authors
0.34
0
3
Name
Order
Citations
PageRank
Biruk Tafesse Mulugeta100.34
Liping Yu200.34
Jingli Ren300.34