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Title of Journal: Anim Cogn

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Abbravation: Animal Cognition

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Springer Berlin Heidelberg

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DOI

10.1002/atr.5670360206

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ISSN

1435-9456

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Female meadow voles Emphasis Type="Italic"Micro

Authors: Michael H Ferkin Nicholas J Hobbs
Publish Date: 2013/11/06
Volume: 17, Issue: 3, Pages: 715-722
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Abstract

Many nonhuman animals are capable of discriminating a group or entity containing more objects from one containing less of the same objects The capacity for making judgments of numerousness may also allow individuals to discriminate between potential mates Female meadow voles Microtus pennsylvanicus may use judgments of relative numerousness to distinguish between potential suitors by selecting males that signal their interest by depositing more scent marks relative to other males We used a familiarization–discrimination paradigm in the absence of training to test the hypothesis that female voles will discriminate between the different numerosities of scent marks of two male conspecifics that are similar in features of their phenotype and quality During the exposure phase we presented female voles with different ratios of feces scent marks from two males During the test phase we presented females with a single fresh fecal scent mark from each of the two male donors whose marks they had previously encountered during the exposure phase In both phases females spent more time investigating the scent marks of the male that deposited more scent marks than that of the male that deposited fewer scent marks provided the difference in the ratio of scent marks provided by the male donors in the exposure phase was ≥2 Our results are consistent with studies on a variety of taxa suggesting that numerosity discriminations are evolutionarily ancient and spontaneously available to nonhuman animals and humans


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  9. Concept of uprightness in baboons: assessment with pictures of realistic scenes
  10. Audiovisual integration facilitates monkeys’ short-term memory
  11. The gestural repertoire of the wild chimpanzee
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  15. What limits tool use in nonhuman primates? Insights from tufted capuchin monkeys ( Sapajus spp.) and chimpanzees ( Pan troglodytes ) aligning three-dimensional objects to a surface
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