How do backward-walking ants (Cataglyphis velox) cope with navigational uncertainty?

  title={How do backward-walking ants (Cataglyphis velox) cope with navigational uncertainty?},
  author={Sebastian Schwarz and Leo Clement and Evripidis Gkanias and Antoine Wystrach},
  journal={Animal Behaviour},
2 Citations

Route following by one-eyed ants suggests a revised model of normal route following.

It is suggested that the ants' zigzag paths are in part controlled by turns of a learnt amplitude and that these turns are an integral part of visually guided route following.

Movements, embodiment and the emergence of decisions. Insights from insect navigation.

  • Antoine Wystrach
  • Psychology, Biology
    Biochemical and biophysical research communications
  • 2021



How to find home backwards? Navigation during rearward homing of Cataglyphis fortis desert ants

Backward-homing Cataglyphis fortis fortis ants exhibit angular and distance gauging comparable to that of forward-homed ants, and show remarkable similarities in the performance of homing compared with forward-walking ants.

The interaction of path integration and terrestrial visual cues in navigating desert ants: what can we learn from path characteristics?

Large-scale path recordings combined with high-speed recordings at key locations suggest that path integration modulates speed along the homing path in desert ants, which might help ants search for, utilise or learn environmental information at important locations.

Insect navigation: do ants live in the now?

Recent results indicate that the navigational decisions of ants take into account their recent experiences as well as the currently perceived environment.

Running paths to nowhere: repetition of routes shows how navigating ants modulate online the weights accorded to cues

It is found that re-running a homeward route without entering the nest impacted subsequent trips, and ants dynamically modulate the weighting given to route memories, suggesting that the mushroom bodies provide a substrate for the reinforcement learning of views for navigation.

Visual scanning behaviours and their role in the navigation of the Australian desert ant Melophorus bagoti

It is found that scanning behaviour is saccadic with pauses separated by fast rotations, and a general relationship between scanning behaviours and periods of uncertainty is seen.

Desert ant navigation: how miniature brains solve complex tasks

  • R. Wehner
  • Biology
    Journal of Comparative Physiology A
  • 2003
The general message is that Cataglyphis uses path integration as an egocentric guideline to acquire continually updated spatial information about places and routes, and relies on procedural knowledge, and largely context-dependent retrieval of such knowledge, rather than on all-embracing geocentred representations of space.

Ant Homing Ability Is Not Diminished When Traveling Backwards

It is suggested that ants must use comparison of current and stored images for corrections of their path, but suggest they are either able to chose the appropriate visual memory for comparison using an additional mechanism; or can make such comparisons without retinotopic alignment.

Backtracking behaviour in lost ants: an additional strategy in their navigational toolkit

An additional behaviour that suggests a supplemental system in the ant's navigational toolkit: ‘backtracking’, allowing lost ants to take into account the familiar view recently experienced, and direct sharing of information across different navigational systems are reported.