Use this URL to cite or link to this record in EThOS: | https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.410365 |
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Title: | Mathematical models of kleptoparasitism | ||||
Author: | Luther, Roger. |
ISNI:
0000 0001 3614 1911
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Awarding Body: | University of Sussex | ||||
Current Institution: | University of Sussex | ||||
Date of Award: | 2004 | ||||
Availability of Full Text: |
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Abstract: | |||||
The phenomenon of kleptoparasitism - "food-stealing" - has frequently
been observed, in a wide range of animal species. In this thesis, I extend the
game-theoretic model of kleptoparasitism, proposed by Broom and Ruxton
1998, in a number of ways.
Firstly, using their model, I investigate how quickly the equilibrium state of a
kleptoparasitic population is reached. This work has been published (Luther
and Broom 2004).
I then investigate the case of a single homogenous population of kleptoparasites,
finding which behaviours are Evolutionarily Stable Strategies. This is
done with a variable probability that a challenger succeeds when attempting
to steal food from a handler, and also allowing the possibility that the handler
does not resist the attack. This work has been published (Broom et al
2004)
I then consider populations of two groups, one stealing and the other only
foraging, to find ESS's, particularly looking at situations where a mixed population
can be an ESS, and other cases where pure populations are an ESS.
I do this for indistinguishable groups, and then distinguishable groups.
I show that a homogenous facultative population behaving in the Broom and
Ruxton 1998 ESS has the same handling ratio as a mixed obligate population
of kleptoparasites and foragers.
Finally, I discuss some ornithological data on kleptoparasitism, and make a
simple comparison with our models, to see if they are an accurate representation
of the actual phenomenon
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Supervisor: | Not available | Sponsor: | Not available | ||
Qualification Name: | Thesis (Ph.D.) | Qualification Level: | Doctoral | ||
EThOS ID: | uk.bl.ethos.410365 | DOI: | Not available | ||
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