Kleptoparasitism in birds

This is the accepted version of the paper.This version of the publication may differ from the final published version. Abstract. Kleptoparasitism is the stealing of food by one animal from another. PermanentThis has been modelled in various ways before, but all previous models have only allowed contests between two individuals. We investigate a model of kleptoparasitism where individuals are allowed to fight in groups of more than two, as often occurs in real populations. We find the equilibrium distribution of the population amongst various behavioural states, conditional upon the strategies played and environmental parameters, and then find evolutionarily stable challenging strategies. We find that there is always at least one ESS, but sometimes there are two or more, and discuss the circumstances when particular ESSs occur, and when there are likely to be multiple ESSs.M. Broom:

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“…It is perhaps most common in birds (see Brockmann and Barnard 1979 for a review), and especially seabirds (Steele and Hockey 1995, Triplet et al…”

Section: Introductionmentioning

confidence: 99%

Kleptoparasitic Melees—Modelling Food Stealing Featuring Contests with Multiple Individuals

Broom

Rychtář

2010

Bull Math Biol

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“…The most common observations of kleptoparasitism have been amongst birds. An extensive review (Brockmann and Barnard 1979) gives a list of observations of kleptoparasitism by birds. It is noted there that this behavior is much more common in some orders of birds than others, and it is especially prevalent amongst sea-birds.…”

Section: Introductionmentioning

confidence: 99%

A game-theoretic model of kleptoparasitic behavior in polymorphic populations

Broom

Luther

Ruxton

et al. 2008

Journal of Theoretical Biology

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This is the accepted version of the paper.This version of the publication may differ from the final published version. Permanent repository link AbstractKleptoparasitism, the stealing of food by one animal from another, is a widespread biological phenomenon. In this paper we build upon earlier models to investigate a population of conspecifics involved in foraging and, potentially, kleptoparasitism. We assume that the population is composed of four types of individuals, according to their strategic choices when faced with an opportunity to steal and to resist an attack. The fitness of each type of individual depends upon various natural parameters, for example food density, the handling time of a food item and the probability of mounting a successful attack against resistance, as well as the choices that they make. We find the Evolutionarily Stable Strategies (ESSs) for all parameter combinations and show that there are six possible ESSs, four pure and two mixtures of two strategies, that can occur. We show that there is always at least one ESS, and sometimes two or three. We further investigate the influence of the different parameters on when each type of solution occurs.

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“…Kleptoparasitic behaviours are important foraging strategies for some birds and mammals, but they are usually one of several alternatives, except for bird brood parasitism (e.g. Brockman & Barnard, 1979;Barnard, 1984;Packer & Ruttan, 1988). Some insects and spiders, however, rely entirely on a kleptoparasitic lifestyle (e.g.…”

Section: Introductionmentioning

confidence: 99%

Silk feeding as an alternative foraging tactic in a kleptoparasitic spider under seasonally changing environments

2004

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Spiders of the genus Argyrodes are kleptoparasites that steal prey from other web spiders. Recent studies have shown that in addition to stealing prey, they occasionally eat the silk of the host spider webs. How Argyrodes alters the two foraging tactics in the field is still unknown. The foraging behaviour of Argyrodes flavescens was observed in the south-western part of Japan where prey availability changes greatly with season. Silk-eating behaviour was commonly observed when insect prey availability on host webs was low, but when prey was abundant, only prey-stealing behaviour was observed. Spiders spent more time feeding on silk than on prey when prey was scarce. Moreover, in the season when most individuals fed on silk, only a small portion of individuals consumed prey. These results suggest that silk eating is an important alternative foraging tactic under seasonally changing environments.

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Kleptoparasitism in birds

Cited by 422 publications

References 85 publications

Kleptoparasitic Melees—Modelling Food Stealing Featuring Contests with Multiple Individuals

Kleptoparasitic Melees—Modelling Food Stealing Featuring Contests with Multiple Individuals

A game-theoretic model of kleptoparasitic behavior in polymorphic populations

Silk feeding as an alternative foraging tactic in a kleptoparasitic spider under seasonally changing environments

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