How do backward-walking ants (Cataglyphis velox) cope with navigational uncertainty?
نویسندگان
چکیده
منابع مشابه
How to find home backwards? Navigation during rearward homing of Cataglyphis fortis desert ants.
Cataglyphis ants are renowned for their impressive navigation skills, which have been studied in numerous experiments during forward locomotion. However, the ants' navigational performance during backward homing when dragging large food loads has not been investigated until now. During backward locomotion, the odometer has to deal with unsteady motion and irregularities in inter-leg coordinatio...
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Ants can navigate over long distances between their nest and food sites using visual cues [1, 2]. Recent studies show that this capacity is undiminished when walking backward while dragging a heavy food item [3-5]. This challenges the idea that ants use egocentric visual memories of the scene for guidance [1, 2, 6]. Can ants use their visual memories of the terrestrial cues when going backward?...
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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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This study examines the effects of body size variation on the optical properties of the compound eyes of visually guided desert ants belonging to the genus Cataglyphis. Although linear head size may vary by a factor of 2 within conspecific workers and most optical parameters change accordingly, the extent of the visual field remains constant. Comparative measurements carried out on workers of t...
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Have you ever wondered how animals might respond to losing a member of their group? Many human activities, like hunting or changing the environment animals live in, can cause the loss of individual animals. However, how this loss affects the remaining animals in a group is still widely unknown. We wanted to investigate this question, so we tracked wild birds known as great tits. These birds for...
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ژورنال
عنوان ژورنال: Animal Behaviour
سال: 2020
ISSN: 0003-3472
DOI: 10.1016/j.anbehav.2020.04.006