Regulation of top-down effect due to anti-predator behavior of intraguild-prey in an intraguild predation model

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F25%3A43910789" target="_blank" >RIV/60076658:12310/25:43910789 - isvavai.cz</a>

Výsledek na webu

<a href="http://chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://link.springer.com/content/pdf/10.1007/s11071-025-11427-2.pdf?utm_source=clarivate&getft_integrator=clarivate" target="_blank" >http://chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://link.springer.com/content/pdf/10.1007/s11071-025-11427-2.pdf?utm_source=clarivate&getft_integrator=clarivate</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11071-025-11427-2" target="_blank" >10.1007/s11071-025-11427-2</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Regulation of top-down effect due to anti-predator behavior of intraguild-prey in an intraguild predation model

Popis výsledku v původním jazyce

Intraguild predation (IGP) combines predation and competition. The significance of IGP-models in many natural groups is becoming more and more clear. In these IGP-systems, we sometimes witness a notable ecological phenomenon called top-down regulation, in which predatory activity at a higher trophic level influences the community structure of lower trophic levels. This study focuses on how the anti-predator behavior of dangerous IG-prey regulates the top-down effect in an ecosystem. To accomplish this, we developed a three-layered IGP-model incorporating the Holling type-I and type-IV functional responses for interactions of shared-prey with their predators and between IG-prey and IG-predators, respectively, along with the anti-predator behavior of IG-prey through direct killing of primarily juvenile predators. This study provides adequate requirements for all equilibria to exist and be locally stable for the proposed IGP-model. Sufficient conditions for species persistence and extinction are discussed analytically. Following the initial population size, the IGP-model may flip between stable states, destabilizing the tri-trophic ecosystem under certain parameter ranges. In the presence of the dangerous IG-prey&apos;s anti-predator nature, our IGP-model fails to show top-down regulation, but in its absence, it does. All key findings are numerically verified using Matlab.

Název v anglickém jazyce

Regulation of top-down effect due to anti-predator behavior of intraguild-prey in an intraguild predation model

Popis výsledku anglicky

Intraguild predation (IGP) combines predation and competition. The significance of IGP-models in many natural groups is becoming more and more clear. In these IGP-systems, we sometimes witness a notable ecological phenomenon called top-down regulation, in which predatory activity at a higher trophic level influences the community structure of lower trophic levels. This study focuses on how the anti-predator behavior of dangerous IG-prey regulates the top-down effect in an ecosystem. To accomplish this, we developed a three-layered IGP-model incorporating the Holling type-I and type-IV functional responses for interactions of shared-prey with their predators and between IG-prey and IG-predators, respectively, along with the anti-predator behavior of IG-prey through direct killing of primarily juvenile predators. This study provides adequate requirements for all equilibria to exist and be locally stable for the proposed IGP-model. Sufficient conditions for species persistence and extinction are discussed analytically. Following the initial population size, the IGP-model may flip between stable states, destabilizing the tri-trophic ecosystem under certain parameter ranges. In the presence of the dangerous IG-prey&apos;s anti-predator nature, our IGP-model fails to show top-down regulation, but in its absence, it does. All key findings are numerically verified using Matlab.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10618 - Ecology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

NONLINEAR DYNAMICS

ISSN

0924-090X

e-ISSN

1573-269X

Svazek periodika

113

Číslo periodika v rámci svazku

18

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

25

Strana od-do

25339-25363

Kód UT WoS článku

001503460600001

EID výsledku v databázi Scopus

2-s2.0-105007338700