Vector-based and landmark-guided navigation in desert ants inhabiting landmark-free and landmark-rich environments

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منابع مشابه

Vector-based and landmark-guided navigation in desert ants inhabiting landmark-free and landmark-rich environments.

Two species of desert ants - the North African Cataglyphis fortis and the central Australian Melophorus bagoti - differ markedly in the visual complexity of their natural habitats: featureless salt pans and cluttered, steppe-like terrain, respectively. Here we ask whether the two species differ in their navigational repertoires, in particular, whether in homing they place different emphasis on ...

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Vector-based and landmark-guided navigation in desert ants of the same species inhabiting landmark-free and landmark-rich environments.

The central Australian desert ant Melophorus bagoti lives in a visually cluttered semi-arid habitat dotted with grass tussocks, bushes and trees. Previously, it was shown that this species has a higher propensity to switch from vector-based navigation to landmark-guided navigation compared with the North African desert ant Cataglyphis fortis, which usually inhabits a visually bare habitat. Here...

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Landmark guidance and vector navigation in outbound desert ants.

This study deals with the influence landmark information has on the foraging behaviour of the desert ant, Cataglyphis fortis, especially with the interaction of such landmark information with the ants' path integration system. We show in the first experiment that desert ants that are captured immediately after leaving their nest and then transferred to a remote test area search for the nest rat...

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Generating and Evaluating Landmark-Based Navigation Instructions in Virtual Environments

Referring to landmarks has been identified to lead to improved navigation instructions. However, a previous corpus study suggests that human “wizards” also choose to refer to street names and generate user-centric instructions. In this paper, we conduct a task-based evaluation of two systems reflecting the wizards’ behaviours and compare them against an improved version of previous landmark-bas...

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Visual Landmark Navigation Through Large-scale Environments

Several theoretical models have been proposed for the visual homing behaviour of insects. We take one such model for visual homing, and extend it to an algorithm capable of autonomous exploration and navigation through large-scale environments. The algorithm uses a novel approach to waypoint selection during the construction of multi-leg routes. By locating the boundaries between visual locales...

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ژورنال

عنوان ژورنال: Journal of Experimental Biology

سال: 2011

ISSN: 1477-9145,0022-0949

DOI: 10.1242/jeb.054601