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

A new navigational mechanism mediated by ant ocelli



A new navigational mechanism mediated by ant ocelli



Biology Letters 7(6): 856-858



Many animals rely on path integration for navigation and desert ants are the champions. On leaving the nest, ants continuously integrate their distance and direction of travel so that they always know their current distance and direction from the nest and can take a direct path to home. Distance information originates from a step-counter and directional information is based on a celestial compass. So far, it has been assumed that the directional information obtained from ocelli contribute to a single global path integrator, together with directional information from the dorsal rim area (DRA) of the compound eyes and distance information from the step-counter. Here, we show that ocelli mediate a distinct compass from that mediated by the compound eyes. After travelling a two-leg outbound route, untreated foragers headed towards the nest direction, showing that both legs of the route had been integrated. In contrast, foragers with covered compound eyes but uncovered ocelli steered in the direction opposite to the last leg of the outbound route. Our findings suggest that, unlike the DRA, ocelli cannot by themselves mediate path integration. Instead, ocelli mediate a distinct directional system, which buffers the most recent leg of a journey.

Please choose payment method:






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

Accession: 037384182

Download citation: RISBibTeXText

PMID: 21733873

DOI: 10.1098/rsbl.2011.0489


Related references

Anteroposterior patterning of Drosophila ocelli requires an anti-repressor mechanism within the hh pathway mediated by the Six3 gene Optix. Development 142(16): 2801-2809, 2015

PLC activity of isolated Planarian ocelli and effects of U73122 on the photoreceptor current in ocelli. Zoological Science 18: 96, 2001

Form vision in the insect dorsal ocelli: an anatomical and optical analysis of the Locust Ocelli. Vision Research 47(10): 1382-1393, 2007

One's own country and familiar places in the mind's eye: different topological representations for navigational and non-navigational contents. Neuroscience Letters 579: 52-57, 2014

Development of the navigational system in homing pigeons: increase in complexity of the navigational map. Journal of Experimental Biology 216(Pt 14): 2675-2681, 2013

Transmission mediated with and without spikes at connexions between large second-order neurones of locust ocelli. Journal Of Comparative Physiology: 1473: 401-414, 1982

Perception of simulated stars by eptesicus fuscus vespertilionidae a potential navigational mechanism. Animal Behaviour 29(4): 1028-1035, 1981

Navigational abilities of homing pigeons deprived of olfactory or trigeminally mediated magnetic information when young. Journal of Experimental Biology 211(Pt 13): 2046-2051, 2008

Navigational abilities of adult and experienced homing pigeons deprived of olfactory or trigeminally mediated magnetic information. Journal of Experimental Biology 212(19): 3119-3124, 2009

Navigational risks associated with sinus surgery and the clinical effects of implementing a navigational system for sinus surgery. Laryngoscope 112(7 Pt 2 Suppl 99): 1-19, 2002

Studies on the mechanism of bacterial resistance to complement mediated killing and on the mechanism of bactericidal antibody. Loos, M (Ed ) Current Topics in Microbiology And Immunology, 121 Bacteria And Complement Ix+191p Springer-Verlag New York, Inc : Secaucus, N J , Usa; Berlin, West Germany Illus 99-134, 1985

Hepatocellular uptake of sulfobromophthalein and bilirubin is mediated by a specific carrier mediated transport mechanism. Journal of Hepatology (Suppl. 2): S333, 1985

Studies on the mechanism of bacterial resistance to complement-mediated killing and on the mechanism of action of bactericidal antibody. Current Topics in Microbiology and Immunology 121: 99, 1985

Evidence that ICAM mediated adhesion is an important mechanism of neutrophil mediated postischemic cardiac injury. FASEB Journal 9(3): A542, 1995