Sticklebacks show consistent prey-share hierarchies within but not between patchy and sequential prey distributions

Daisy E. F. Taylor; Daniel Cownden; Michael Munro Webster

doi:10.1111/jzo.12350

Sticklebacks show consistent prey-share hierarchies within but not between patchy and sequential prey distributions

Daisy E. F. Taylor, Daniel Cownden, Michael Munro Webster

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Abstract

When animals compete, hierarchies can emerge. If the outcome of competition under different conditions is dependent upon different sets of attributes, then we may expect to see hierarchies that are domain-specific, rather than domain general. We tested this idea by comparing prey share hierarchies within shoals of sticklebacks Gasterosteus aculeatus as they foraged for patchily-distributed or for drifting prey. We found that prey share was correlated across pairs of patch- and pairs of drift-foraging trials, but not between the two conditions, suggesting that separate repeatable but independent prey share hierarchies arise for each for each type of prey distribution. We discuss possible underlying mechanisms and ecological implications of this finding.

Original language	English
Pages (from-to)	137-141
Number of pages	5
Journal	Journal of Zoology
Volume	300
Issue number	2
Early online date	25 Apr 2016
DOIs	https://doi.org/10.1111/jzo.12350
Publication status	Published - Oct 2016

Keywords

Competition
Predation
Scramble competition
Social foraging
Prey distribution

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10.1111/jzo.12350

Taylor et al. Hierarchies JoZ for PURE
© 2016, The Zoological Society of London. This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at onlinelibrary.wiley.com / https://dx.doi.org/10.1111/jzo.12350
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Cite this

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title = "Sticklebacks show consistent prey-share hierarchies within but not between patchy and sequential prey distributions",

abstract = "When animals compete, hierarchies can emerge. If the outcome of competition under different conditions is dependent upon different sets of attributes, then we may expect to see hierarchies that are domain-specific, rather than domain general. We tested this idea by comparing prey share hierarchies within shoals of sticklebacks Gasterosteus aculeatus as they foraged for patchily-distributed or for drifting prey. We found that prey share was correlated across pairs of patch- and pairs of drift-foraging trials, but not between the two conditions, suggesting that separate repeatable but independent prey share hierarchies arise for each for each type of prey distribution. We discuss possible underlying mechanisms and ecological implications of this finding.",

keywords = "Competition, Predation, Scramble competition, Social foraging, Prey distribution",

author = "Taylor, {Daisy E. F.} and Daniel Cownden and Webster, {Michael Munro}",

note = "This work was supported by the School of Biology{\textquoteright}s Experimental Research Project (BL4201) program, (module BL4201: Experimental Research Project) at the University of St Andrews, UK.",

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AU - Taylor, Daisy E. F.

AU - Cownden, Daniel

AU - Webster, Michael Munro

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N2 - When animals compete, hierarchies can emerge. If the outcome of competition under different conditions is dependent upon different sets of attributes, then we may expect to see hierarchies that are domain-specific, rather than domain general. We tested this idea by comparing prey share hierarchies within shoals of sticklebacks Gasterosteus aculeatus as they foraged for patchily-distributed or for drifting prey. We found that prey share was correlated across pairs of patch- and pairs of drift-foraging trials, but not between the two conditions, suggesting that separate repeatable but independent prey share hierarchies arise for each for each type of prey distribution. We discuss possible underlying mechanisms and ecological implications of this finding.

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KW - Predation

KW - Scramble competition

KW - Social foraging

KW - Prey distribution

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EP - 141

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JF - Journal of Zoology

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ER -

Sticklebacks show consistent prey-share hierarchies within but not between patchy and sequential prey distributions

Abstract

Keywords

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