Discrimination of inclined path segments by the desert ant Cataglyphis fortis
Discrimination of inclined path segments by the desert ant Cataglyphis fortis
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沙漠蚁 Cataglyphis fortis 对倾斜路径段的识别
DOI:
10.1007/s00359-012-0714-5
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发表时间:
2012
期刊:
影响因子:
--
通讯作者:
Ronacher B
中科院分区:
文献类型:
--
作者:
Wintergerst;Ronacher B
Desert ants (Cataglyphis fortis) navigate by means of path integration, and perform accurately even in undulating terrain. They are able to correctly calculate the ground distance between nest and feeder even if their foraging excursion leads them over corrugated surfaces. To compute the respective ground projection when walking over an inclined surface, ants must measure its slope with sufficient accuracy—but how they do so is still not understood. Using a new behavioural assay that included a negative reinforcement, we investigated how well different slopes are discriminated by the ants. Ants were trained to visit an elevated feeder, via a ramp of fixed inclination (five training inclinations were used: 0°, 15°, 30°, 45°, 60°). The ants discriminated a steeper test slope that differed from the training slope by 12.5°. This discrimination performance was found to be constant for training slopes between 0° and 45°. Ants trained on a 60° slope, however, did not discriminate all steeper slopes, up to a vertical ascent, from the 60° inclination. The consequences of this discrimination accuracy for errors in the path integration process are discussed.
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DOI:
--
发表时间:
2004
期刊:
Kybernetik
影响因子:
--
作者:
U. Bässler
通讯作者:
U. Bässler
DOI:
--
发表时间:
1967
期刊:
Kybernetik
影响因子:
--
作者:
U. Bässler
通讯作者:
U. Bässler
DOI:
10.1007/s00359-009-0475-y
发表时间:
2009
期刊:
Journal of Comparative Physiology A
影响因子:
--
作者:
T. Weihmann;R. Blickhan
通讯作者:
R. Blickhan
影响因子:
64.8
作者:
D. Swinbanks;R. Nathan
通讯作者:
R. Nathan
影响因子:
2.8
作者:
Matthias Wittlinger;H. Wolf;R. Wehner
通讯作者:
R. Wehner