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Local vectors in desert ants: context-dependent landmark learning during outbound and homebound runs.


Bisch-Knaden, S; Wehner, R (2003). Local vectors in desert ants: context-dependent landmark learning during outbound and homebound runs. Journal of Comparative Physiology A, 189(3):181-187.

Abstract

Desert ants, Cataglyphis fortis, associate nestward-directed vector memories (local vectors) with the sight of landmarks along a familiar route. This view-based navigational strategy works in parallel to the self-centred path integration system. In the present study we ask at what temporal stage during a foraging journey does the ant acquire nestward-directed local vector information from feeder-associated landmarks: during its outbound run to a feeding site or during its homebound run to the nest. Tests performed after two reversed-image training paradigms revealed that the ants associated such vectors exclusively with landmarks present during their homebound runs.

Desert ants, Cataglyphis fortis, associate nestward-directed vector memories (local vectors) with the sight of landmarks along a familiar route. This view-based navigational strategy works in parallel to the self-centred path integration system. In the present study we ask at what temporal stage during a foraging journey does the ant acquire nestward-directed local vector information from feeder-associated landmarks: during its outbound run to a feeding site or during its homebound run to the nest. Tests performed after two reversed-image training paradigms revealed that the ants associated such vectors exclusively with landmarks present during their homebound runs.

Citations

35 citations in Web of Science®
37 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed
Communities & Collections:07 Faculty of Science > Institute of Zoology (former)
Dewey Decimal Classification:570 Life sciences; biology
590 Animals (Zoology)
Language:English
Date:1 March 2003
Deposited On:11 Feb 2008 12:16
Last Modified:05 Apr 2016 12:15
Publisher:Springer
ISSN:0340-7594
Publisher DOI:10.1007/s00359-003-0389-z
PubMed ID:12664094

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