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Behav Processes. 2011 Oct;88(2):72-5. doi: 10.1016/j.beproc.2011.08.006. Epub 2011 Aug 19.

Tracking of food quantity by coyotes (Canis latrans).

Author information

1
Utah State University, Department of Psychology, USA. Joseph.Baker@aggiemail.usu.edu

Abstract

Previous studies have demonstrated that Weber's Law mediates quantitative discrimination abilities across various species. Here, we tested coyotes' (Canis latrans) ability to discriminate between various quantities of food and investigated whether this ability conforms to predictions of Weber's Law. We demonstrate herein that coyotes are capable of reliably discriminating large versus small quantities of discrete food items. As predicted by Weber's Law, coyotes' quantitative discrimination abilities are mediated by the ratio between the large and small quantities of food and exhibit scalar variability. Furthermore, in this task coyotes were not discriminating large versus small quantities based on olfactory cues alone.

PMID:
21856389
DOI:
10.1016/j.beproc.2011.08.006
[Indexed for MEDLINE]
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