J 2024

Destabilization of a seasonal synchronization in a population model with a seasonally varying Allee effect

PŘIBYLOVÁ, Lenka, Deeptajyoti SEN and Veronika ECLEROVÁ

Basic information

Original name

Destabilization of a seasonal synchronization in a population model with a seasonally varying Allee effect

Authors

PŘIBYLOVÁ, Lenka (203 Czech Republic, guarantor, belonging to the institution), Deeptajyoti SEN (356 India, belonging to the institution) and Veronika ECLEROVÁ (203 Czech Republic, belonging to the institution)

Edition

Applied Mathematics and Computation, Elsevier, 2024, 0096-3003

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10100 1.1 Mathematics

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 4.000 in 2022

Organization unit

Faculty of Science

UT WoS

001081614500001

Keywords in English

Seasonality; Allee effect; Arnold tongue; Synchronization; Bifurcations; Chaos

Tags

Tags

International impact, Reviewed
Změněno: 27/10/2023 08:50, Mgr. Marie Šípková, DiS.

Abstract

V originále

Climate change causing large seasonal fluctuations is likely to lead to an increase in the average threshold of the Allee effect as well as an increase in its seasonal variability. In this paper, we show that a seasonally synchronized predator-prey system can be strongly destabilized by these changes in the threshold of the Allee effect. The typical result first leads to two-year and multiyear cycles by the principle of period doubling on a folded Möbius strip, up to the emergence of a chaotic and hyper-chaotic attractor living close to the trivial equilibrium corresponding to the extinction of populations. Moreover, this instability of the ecosystem can be hidden for a long time and the transition to its basin of attraction can occur by external perturbation in a random and irreversible manner. We also reveal a double folding of the 1:1 synchronized cycle manifold inside the corresponding Arnold tongue and hysteresis similar to well-known Duffing oscillator.

Links

MUNI/A/1132/2022, interní kód MU
Name: Matematické a statistické modelování 7
Investor: Masaryk University
MUNI/A/1342/2021, interní kód MU
Name: Matematické a statistické modelování 6 (Acronym: MaStaMo6)
Investor: Masaryk University
101063853, interní kód MU
Name: Models with cross-interactions between partial dynamical processes aiming to understand significant or abrupt dynamic changes. (Acronym: CrossInteractions)
Investor: European Union, Marie Skłodowska-Curie Postdoctoral Fellowships (MSCA PF)