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  Kea show no evidence of inequity aversion

Heaney, M., Gray, R. D., & Taylor, A. H. (2017). Kea show no evidence of inequity aversion. Royal Society Open Science, 4(3): 160461. doi:10.1098/rsos.160461.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0000-29B4-7 Version Permalink: http://hdl.handle.net/21.11116/0000-0000-29B5-6
Genre: Journal Article

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shh926.pdf (Publisher version), 473KB
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 Creators:
Heaney, Megan, Author
Gray, Russell D.1, Author              
Taylor, Alex H., Author
Affiliations:
1Linguistic and Cultural Evolution, Max Planck Institute for the Science of Human History, Max Planck Society, ou_2074311              

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 Abstract: It has been suggested that inequity aversion is a mechanism that evolved in humans to maximize the pay-offs from engaging in cooperative tasks and to foster long-term cooperative relationships between unrelated individuals. In support of this, evidence of inequity aversion in nonhuman animals has typically been found in species that, like humans, live in complex social groups and demonstrate cooperative behaviours. We examined inequity aversion in the kea (Nestor notabilis), which lives in social groups but does not appear to demonstrate wild cooperative behaviours, using a classic token exchange paradigm. We compared the number of successful exchanges and the number of abandoned trials in each condition and found no evidence of an aversion to inequitable outcomes when there was a difference between reward quality or working effort required between actor and partner. We also found no evidence of inequity aversion when the subject received no reward while their partner received a low-value reward.

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Language(s): eng - English
 Dates: 2017-03-15
 Publication Status: Published online
 Pages: 8
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1098/rsos.160461
Other: shh926
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Title: Royal Society Open Science
Source Genre: Journal
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Publ. Info: London : Royal Society
Pages: - Volume / Issue: 4 (3) Sequence Number: 160461 Start / End Page: - Identifier: Other: 2054-5703
CoNE: /journals/resource/2054-5703