The fear effect is a powerful force in prey-predator interaction, eliciting a variety of anti-predator responses which lead to a reduction of prey growth rate. To study the impact of the fear effect on population dynamics of the eco-epidemiological system, we develop a predator-prey interaction model that incorporates infectious disease in predator population as well as the cost of anti-predator behaviors. Detailed mathematical results, including well-posedness of solutions, stability of equilibria and the occurrence of Hopf bifurcation are provided. It turns out that population density diminishes with increasing fear, and the fear effect can either destabilize the stability or induce the occurrence of periodic behavior. The theoretical results here provide a sound foundation for understanding the effect of the anti-predator behaviors on the eco-epidemiological interaction.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.3934/mbe.2023354 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Neonicotinoid exposure causes behavioral impairment and delayed mortality of the federally threatened American burying beetle, Nicrophorus americanus.
PLoS One
January 2025
Department of Entomology and Plant Pathology, Oklahoma State University, Stillwater, OK, United States of America.
Among the most immediate drivers of American burying beetle (Nicrophorus americanus Olivier) declines, nontarget toxicity to pesticides is poorly understood. Acute, episodic exposure to neonicotinoid insecticides at environmentally relevant concentrations is linked to negative impacts on beneficial terrestrial insect taxa. Beyond mortality, behavioral indicators of toxicity are often better suited to assess sublethal effects of residual concentrations in the environment.
View Article and Find Full Text PDFCurrent predation risk has opposing effects on social learning of foraging locations across two guppy populations.
Anim Cogn
January 2025
Department of Biology, McGill University, Quebec, Canada.
Social learning, where animals learn from other individuals, occurs in many diverse species. The influential but debated 'costly information' hypothesis posits that animals will rely more on social information in high-risk contexts, such as under increased predation risk. We examined and compared the effects of perceived predation risk on social learning of foraging sites in female Trinidadian guppies from wild and domestic populations raised in common-garden environments.
View Article and Find Full Text PDFPredation events are an important key factor determining the survival and reproduction of prey species. To cope, prey species have evolved various anti-predator strategies, including mechanisms for accurate predator identification and distinguishing predator types and risk levels. Birds rely on visual, auditory, and olfactory cues to perceive and categorize predators.
View Article and Find Full Text PDFVariation in behaviour of native prey mediates the impact of an invasive species on plankton communities.
PeerJ
December 2024
Biology Department, Queen's University, Kingston, Ontario, Canada.
Trait variation in predator populations can influence the outcome of predator-prey dynamics, with consequences for trophic dynamics and ecosystem functioning. However, the influence of prey trait variation on the impacts of predators is not well understood, especially for introduced predators where variation in prey can shape invasion outcomes. In this study, we investigated if intra-specific differences in vertical position of influenced the impacts of the invasive zooplankton predator, on plankton communities.
View Article and Find Full Text PDFSelection for altruistic defense in structured populations.
Theor Popul Biol
February 2025
Fakultät für Biologie, Division of Evolutionary Biology, Ludwig-Maximilians-Universität München, Großhaderner Str. 2, 82152 Martinsried, Germany. Electronic address:
We model natural selection for or against an anti-parasite (or anti-predator) defense allele in a host (or prey) population that is structured into many demes. The defense behavior has a fitness cost for the actor compared to non defenders ("cheaters") in the same deme and locally reduces parasite growth rates. Hutzenthaler et al.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!