Počet záznamů: 1
Caught between two Allee effects: Trade-off between reproduction and predation risk
0345293 - BC-A 2011 RIV GB eng J - Článek v odborném periodiku
Pavlová, V. - Berec, Luděk - Boukal S., David
Caught between two Allee effects: Trade-off between reproduction and predation risk.
Journal of Theoretical Biology. Roč. 264, č. 3 (2010), s. 787-798 ISSN 0022-5193
Grant CEP: GA AV ČR KJB600070602
Výzkumný záměr: CEZ:AV0Z50070508
Klíčová slova: anti-predator behaviour * dilution effect * extinction
Kód oboru RIV: EH - Ekologie - společenstva
Impakt faktor: 2.371, rok: 2010
We use simple models to explore population-dynamical consequences of a trade-off between reproduction and predation risk for populations subject to a mate-finding Allee effect and an Allee effect due to predation. We show that depending on the cost of reproduction in terms of predation, the population can always go extinct, or go extinct only over a certain range of low, intermediate or high levels of reproductive activities. Predator removal has the least effect on populations with low cost of reproduction in terms of predation and, conversely, predator addition is most effective for populations with high predation cost of reproduction. The fate of populations subject to the two antagonistic Allee effects should therefore be evaluated on a case-by-case basis.
Trvalý link: http://hdl.handle.net/11104/0186606