+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Simulated visual homing in desert ant natural environments: efficiency of skyline cues

Simulated visual homing in desert ant natural environments: efficiency of skyline cues

Biological Cybernetics 102(5): 413-425

Desert ants, foraging in cluttered semiarid environments, are thought to be visually guided along individual, habitual routes. While other navigational mechanisms (e.g. path integration) are well studied, the question of how ants extract reliable visual features from a complex visual scene is still largely open. This paper explores the assumption that the upper outline of ground objects formed against the sky, i.e. the skyline, provides sufficient information for visual navigation. We constructed a virtual model of the ant's environment. In the virtual environment, panoramic images were recorded and adapted to the resolution of the desert ant's complex eye. From these images either a skyline code or a pixel-based intensity code were extracted. Further, two homing algorithms were implemented, a modified version of the average landmark vector (ALV) model (Lambrinos et al. Robot Auton Syst 30:39-64, 2000) and a gradient ascent method. Results show less spatial aliasing for skyline coding and best homing performance for ALV homing based on skyline codes. This supports the assumption of skyline coding in visual homing of desert ants and allows novel approaches to technical outdoor navigation.

(PDF emailed within 0-6 h: $19.90)

Accession: 055783373

Download citation: RISBibTeXText

PMID: 20300942

DOI: 10.1007/s00422-010-0375-9

Related references

The orientational salience of visual cues to the homing pigeon. Animal Behaviour 53(2): 287-296, 1997

Some aspects of the use of visual cues in directional training and homing of pigeons. Diss: 4929., 1971

Some aspects of the use of visual cues in directional training of homing pigeons. NASA (National Aeronautics & Space Administration) SP 262: 293-304, 1972

Garden ant homing behavior in a maze task based on local visual cues. Insectes Sociaux 60(2): 155-162, 2013

Young convict cichlids use visual information to update olfactory homing cues. Behavioral Ecology and Sociobiology 63(3): 443-449, 2009

Homing behaviour in the sleepy lizard (Tiliqua rugosa): The role of visual cues and the parietal eye. Behavioral Ecology and Sociobiology 50(6): 563-569, 2001

Relevance of visual cues for orientation at familiar sites by homing pigeons: an experiment in a circular arena. Proceedings. Biological Sciences 268(1480): 2065-2070, 2001

Visual homing in environments with anisotropic landmark distribution. Autonomous Robots 23(3): 231-245, 2007

Feature optimization for long-range visual homing in changing environments. Sensors 14(2): 3342-3361, 2014

Rotation of visual landmark cues influences the spatial response profile of hippocampal neurons in freely-moving homing pigeons. Behavioural Brain Research 187(2): 473-477, 2007

Homing pigeons primarily use the sun compass rather than fixed directional visual cues in an open-field arena food-searching task. Proceedings Of The Royal Society Of London Series B Biological Sciences. 260(1357): 59-63, 1995

Visual Cues to Altitude in Simulated Flight Over Complex Terrain. ARVO Annual Meeting Abstract Search & Program Planner : Abstract No 4793, 2002

Homing strategies of the Australian desert ant Melophorus bagoti. II. Interaction of the path integrator with visual cue information. Journal of Experimental Biology 210(Pt 10): 1804-1812, 2007

The use of multiple visual cues for depth and distance perception in 3D environments. Investigative Ophthalmology & Visual Science 35(4): 2110, 1994

Speech imitation in simulated deafness, using visual cues and 'recoded' auditory information. Language and Speech 16(3): 224-236, 1973