Journal ArticleDOI
The control of handling time and its effects on the foraging strategy of a heteropteran predator, notonecta
TLDR
Overall mean handling time was found to increase with decreasing prey density, as predicted by both optimal feeding and gut-filling models, and a positive correlation was demonstrated between handling time and intercatch interval, supporting a gut- filling model.Abstract:
SUMMARY (1) The feeding behaviour of two species of the freshwater heteropteran Notonecta was examined with respect to the factors influencing prey handling time. (2) Overall mean handling time was found to increase with decreasing prey density, as predicted by both optimal feeding and gut-filling models. (3) A positive correlation was demonstrated between handling time and intercatch interval (the time from discarding one prey item to capturing another), supporting a gut-filling model. (4) A decay in the handling time per item through the catch sequence was found, irrespective of prey density, which adequately described the overall mean handling time for each prey density. (5) A similar decrease was demonstrated in the intercatch interval through the catch sequence, suggesting an increase in searching efficiency, which could be based on theread more
Citations
More filters
Citation classic - optimal foraging - a selective review of theory and tests
TL;DR: A review of the literature on optimal foraging can be found in this article, with a focus on the theoretical developments and the data that permit tests of the predictions, and the authors conclude that the simple models so far formulated are supported by available data and that they are optimistic about the value both now and in the future.
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.
Book
Individual Behavior and Community Dynamics
John M. Fryxell,Per Lundberg +1 more
TL;DR: This chapter discusses diet selection, habitat choice, and Interference and Territoriality in the context ofPredator-Prey Dynamics, which aims to clarify the role of interference in the design of Predators and Population Dynamics.
Book
Insect Natural Enemies
TL;DR: Having more aspects to know and understand will lead you to become someone more precious, and becoming precious can be situated with the presentation of how your knowledge much.
Journal ArticleDOI
Aquatic Insect Predator-Prey Relations
TL;DR: Although most aquatic insect predators are opportunists, certain prey sizes or types may be preferred, suggesting predator influence on prey community structure.
References
More filters
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
Theory of Feeding Strategies
TL;DR: Throughout, emphasis will be placed on strategic aspects of feeding rather than on what Holling (75) has called "tactics," and possible answers to the first problem may be given to the second problem.
Journal ArticleDOI
Optimal foraging: A selective review of theory and tests
TL;DR: The general conclusion is that the simple models so far formulated are supported are supported reasonably well by available data and that the author is optimistic about the value both now and in the future of optimal foraging theory.
Citation classic - optimal foraging - a selective review of theory and tests
TL;DR: A review of the literature on optimal foraging can be found in this article, with a focus on the theoretical developments and the data that permit tests of the predictions, and the authors conclude that the simple models so far formulated are supported by available data and that they are optimistic about the value both now and in the future.
Journal ArticleDOI
Optimal foraging: Attack strategy of a mantid
TL;DR: A simple model of breadth of diet for a randomencounter situation is developed and compared to the behavior of a real predator, the mantid, Hierodula crassa, to show that this mantid supports the predicted behavior.