Journal ArticleDOI
Foraging for Patchily-Distributed Hosts by the Parasitoid, Nemeritis canescens
TLDR
The locomotory responses which influence patch time allocation were investigated for the parasitoid, Nemeritis canescens (Grav.).Abstract:
(1) The locomotory responses which influence patch time allocation were investigated for the parasitoid, Nemeritis canescens (Grav.). Arrestment in patches was brought about by orthokinetic and klinotactic responses to a host-produced chemical and, indirectly, by oviposition. (2) A series of ovipositions increased patch time in a manner dependent on their rate rather than their absolute number. (3) A behavioural model is developed for the duration of a patch visit at different host densities. The aggregative response predicted is compared with experimental findings. (4) The effect of experience on patch time is investigated. Nemeritis avoids already visited patches. More long-term effects of conditioning on patch time are also suggested. (5) The manner in which Nemeritis forages is compared to that predicted by foraging models, and the nature of the parasitoid foraging process is discussed.read more
Citations
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Book
Simple Heuristics That Make Us Smart
Gerd Gigerenzer,Peter M. Todd +1 more
TL;DR: Fast and frugal heuristics as discussed by the authors are simple rules for making decisions with realistic mental resources and can enable both living organisms and artificial systems to make smart choices, classifications, and predictions by employing bounded rationality.
Journal ArticleDOI
Prey Distribution as a Factor Determining the Choice of Optimal Foraging Strategy
TL;DR: Whether the predator under observation actually behaves optimally in accordance with the distribution of prey should be revealed by plotting the number of captures against the length of period for which the predator stayed in each patch.
Journal ArticleDOI
Foraging Behavior of Forest Birds: The Relationships Among Search Tactics, Diet, and Habitat Structure
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Journal ArticleDOI
Effects of landscape context on herbivory and parasitism at different spatial scales
TL;DR: The effect of non-crop area tended to be stronger in parasitism than herbivory suggesting a greater effect of changes in landscape context on parasitoids, in support of the general idea that higher trophic levels should be more susceptible to disturbance.
Journal ArticleDOI
Choice optimal foraging, and the delay-reduction hypothesis
Edmund Fantino,Nureya Abarca +1 more
TL;DR: In this article, the authors compare the performance of the parameter-free delay-reduction hypothesis with those of optimal foraging theory, developed by behavioral ecologists, showing that, with two exceptions, the two positions make comparable predictions.
References
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Journal ArticleDOI
Optimal foraging, the marginal value theorem.
TL;DR: This paper will develop a model for the use of a “patchy habitat” by an optimal predator and depresses the availability of food to itself so that the amount of food gained for time spent in a patch of type i is hi(T), where the function rises to an asymptote.
Journal ArticleDOI
Some characteristics of simple types of predation and parasitism
TL;DR: In an earlier study (Holling, 1959), the basic and subsidiary components of predation were demonstrated in a predator-prey situation involving the predation of sawfly cocoons by small mammals.
Book ChapterDOI
Predation and Population Stability
W.W. Murdoch,A. Oaten +1 more
TL;DR: The chapter discusses the relationship between learning and functional response, and indicates the importance of two features, developmental response and numerical response, of the interaction.
Journal ArticleDOI
Host selection by insect parasitoids
TL;DR: Parasitoids include a vast number of species of the so-called parasitic Hymenoptera, the Strepsiptera, and a few of the Diptera, primarily in the family Tachinidae.