Abstract
In this chapter, we consider practical aspects of the foraging behaviour of insect natural enemies in its widest sense (so wide that we even include a few examples concerning non-insect arthopods, such as mites). Initially, most insect natural enemies must locate the habitat where potential victims may be found. Within that habitat, the victims themselves must be discovered. Once a patch of potential targets is identified, the predator or female parasitoid must choose its victim. Furthermore, in judging host quality, a female parasitoid must decide whether to feed from the host, to oviposit, or to do both. If she does decide to oviposit, then there are questions of sex allocation and offspring number that need to be addressed (Fig. 1.1). All of these activities fall under the aegis of ‘foraging behaviour’.
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Acknowledgements
The previous version of this chapter was written by Mark Fellowes, Jacques van Alphen, and Mark Jervis (Fellowes et al., 2005), with some contributions by Ian Hardy and Paul Ode. Help and advice on that version were given by Emma Wittmann, Jacintha Ellers and Kerry Elliott. The text was revised and updated for the current edition by K.S. Shameer, Ian Hardy and Eric Wajnberg. We acknowledge support from the Israel Institute for Advanced Studies for the research group programme ‘Mathematical modeling of biological control interactions to support agriculture and conservation’ during the revision of the text.
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Fellowes, M.D.E., van Alphen, J.J.M., Shameer, K.S., Hardy, I.C.W., Wajnberg, E., Jervis, M.A. (2023). Foraging Behaviour. In: Hardy, I.C., Wajnberg, E. (eds) Jervis's Insects as Natural Enemies: Practical Perspectives. Springer, Cham. https://doi.org/10.1007/978-3-031-23880-2_1
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