Opportunistic random searcher versus intentional search image user
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Garay, József; Varga, Zoltan; Mori, Tamas; López García, María Inmaculada; Gámez Cámara, Manuel Angel; [et al.]Fecha
2018-02-20Resumen
We consider two types of optimal foragers: a random searcher and a search image user. A search image user can find its desired prey with higher and undesired prey with lower probability than a random searcher. Our model considers the density-dependent travelling time and the time duration of reproduction (oviposition). In the framework of optimal foraging theory for one predator–two prey
systems, we find that there are ranges of prey densities in which the search image user has a higher net energy intake, and there are other ranges of prey densities in which the random searcher has higher net energy intake. The damsel bug Nabis pseudoferus Remane (Hemiptera: Nabidae) is a generalist predator rather than an omnivore. This species has a wide range of arthropod prey (predominantly insects and mites). Several aspects of the biology of this species have been studied, especially its cannibalistic
behaviour, which is a quite important feature because N. pseudoferus is often used as a biolog...
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Ecology
Entomology
Insects
Predatory species
Biological control