Impacts of foraging facilitation among predators on predator-prey dynamics

0338419 - BC 2010 RIV GB eng J - Článek v odborném periodiku
Berec, Luděk
Impacts of foraging facilitation among predators on predator-prey dynamics.
Bulletin of Mathematical Biology. Roč. 72, č. 1 (2010), s. 94-121. ISSN 0092-8240. E-ISSN 1522-9602
Grant CEP: GA AV ČR KJB600070602
Výzkumný záměr: CEZ:AV0Z50070508
Klíčová slova: Allee effect * Bi-stability * cooperative hunting
Kód oboru RIV: EH - Ekologie - společenstva
Impakt faktor: 1.859, rok: 2010

In this paper, I develop a novel predator functional response that accounts for the observation that sometimes predator consumption rate may increase with increasing predator numbers or density (foraging facilitation). In addition, I analyze a predator-prey model that incorporates this functional response and show that impacts of foraging facilitation on predator-prey dynamics may vary. Foraging facilitation destabilizes predator-prey dynamics when it affects the encounter rate between predators and prey, while it might have a stabilizing effect if the predator handling time of prey is affected.
Trvalý link: http://hdl.handle.net/11104/0182194