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  E-mail Message: I thought you might be interested in this item at http://www.worldcat.org/oclc/117770672 Title: Effect of food competition on aggregation: evidence for social recognition in the plains garter snake (Thamnophis radix). Publisher: ISBN/ISSN: 0735-7036 OCLC:117770672

  
  

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Effect of food competition on aggregation: evidence for social recognition in the plains garter snake (Thamnophis radix).

Author:	CP Yeager; GM Burghardt
Edition/Format:	Article : English
Publication:	Journal of comparative psychology (Washington, D.C. : 1983) 1991 Dec; 105(4): 380-6
Database:	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
Summary:	Competition for food and aggregating behavior were examined in plains garter snakes (Thamnophis radix), in 11 groups of 1 noncompetitor and 2 competitors. Aggregation data were obtained in 48 daily scans. During food competition, success at obtaining food was asymmetrical across pairs. For aggregation, competitors were mostly associated with noncompetitors. After removal of noncompetitors, competitors were more likely to be solitary, but associations between competitors increased. After a 5-month separation, 5 of the original groups were reconstituted; aggregation patterns similar to the 1st experiment were observed. In a 3rd experiment, unfamiliar animals with and without competitive experience did not aggregate preferentially. Garter snakes discriminate on the basis of sex and species; in this study individual relationships (prior competition) affected aggregation, and the data suggest individual recognition both occurs and persists over time.  Read more...
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