The ant?s estimation of distance travelled: experiments with desert ants, Cataglyphis fortis
نویسندگان
چکیده
منابع مشابه
The visual centring response in desert ants, Cataglyphis fortis.
When negotiating their way through cluttered environments, desert ants, Cataglyphis fortis, tend to run along the midlines of the alleys formed by adjacent low shrubs. This 'centring response' was investigated by inducing foraging ants to walk through artificial channels. The sidewalls of the channel were either homogeneously black or provided with stationary or moving black-and-white gratings....
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Desert ants, Cataglyphis fortis, use a stride integrator as a distance gauge in their well-studied path integration system (while a skylight compass provides the direction gauge). To further scrutinize the mechanisms of the ant odometer, we tried to disturb the stride integrator by interfering with normal walking behaviour. First, legs that contribute to one of the two leg tripods alternately u...
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In this study, we investigate the ability of desert ants to gauge the ground distances of sloped sections in a three-dimensional (3D) outbound path. Ground distance estimation, as opposed to a simple measurement of walking distances, is a necessary prerequisite for precise path integration in undulating terrain. We trained ants to visit a feeder along a path that included an angular turn as wel...
متن کاملOntogeny of learning walks and the acquisition of landmark information in desert ants, Cataglyphis fortis.
At the beginning of their foraging lives, desert ants (Cataglyphis fortis) are for the first time exposed to the visual world within which they henceforth must accomplish their navigational tasks. Their habitat, North African salt pans, is barren, and the nest entrance, a tiny hole in the ground, is almost invisible. Although natural landmarks are scarce and the ants mainly depend on path integ...
متن کاملVisual navigation in desert ants Cataglyphis fortis: are snapshots coupled to a celestial system of reference?
Central-place foraging insects such as desert ants of the genus Cataglyphis use both path integration and landmarks to navigate during foraging excursions. The use of landmark information and a celestial system of reference for nest location was investigated by training desert ants returning from an artificial feeder to find the nest at one of four alternative positions located asymmetrically i...
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ژورنال
عنوان ژورنال: Journal of Comparative Physiology A: Sensory, Neural, and Behavioral Physiology
سال: 2004
ISSN: 0340-7594,1432-1351
DOI: 10.1007/s00359-003-0465-4