Related Experiment Video
Updated: May 9, 2025

Administering and Detecting Protein Marks on Arthropods for Dispersal Research
Published on: January 28, 2016
Dynamical analysis of a predator-prey system with fear-induced dispersal between patches
Jin Zhong1, Yue Xia1, Lijuan Chen1
1School of Mathematics and Statistics, Fuzhou University, Fuzhou, Fujian 350108, China.
Abstract:
In this paper, a patchy model in which the migration is induced by the fear effect on the predator was investigated. By applying dynamical theory, the complete study on persistence of the system and the local/global stability of equilibria were discussed. Choosing the diffusion coefficient $ D_1 $ as the bifurcation parameter, transcritical bifurcation occurring near the trivial equilibrium was demonstrated. We concluded that low dispersal is favorable for the coexistence of both species, but large dispersal leads to the extinction of species. There is an optimal diffusion coefficient to make the density of the prey population reach its maximum. In addition, the level of fear effect $ k $ and the maximum fear cost $ \eta $ are beneficial to the total population density of prey.
More Related Videos
10:20Linking Predation Risk, Herbivore Physiological Stress and Microbial Decomposition of Plant Litter
Published on: March 12, 2013
16:03A Fish-feeding Laboratory Bioassay to Assess the Antipredatory Activity of Secondary Metabolites from the Tissues of Marine Organisms
Published on: January 11, 2015
Related Concept Videos
Predator-Prey Interactions
Distribution and Dispersion
What are Populations and Communities?
Trophic Efficiency
Conservation of Small Populations
Habitat Fragmentation