Home > Papers from 2011 > A new piece of the Melophorus jigsaw

A new piece of the Melophorus jigsaw

I have re-posted this entry to reflect the fact that the pdf is now available and to correct the citation.

Because of its interestingly cluttered environment, the Australian desert ant Melophorus bagoti has become a really useful study species for navigation research. In particular their use of visual cues. In this paper, we add another piece to this story by looking at the structure of Melophorus’ compound eyes. The ants possess typical apposition eyes with about 500 ommatidia per eye and a horizontal visual field of approximately 150°. The average interommatidial angle
Δϕ is 3.7°, the average acceptance angle of the rhabdom Δρ(rh) is 2.9°. With a Δρ(rh)/Δϕ ratio of much less than 2, the eyes undersample the visual scene but provide high contrast, and surprising detail of the landmark panorama that has been shown to be used for navigation –   Sebastian Schwarz

Schwarz S, Narendra A, Zeil J. (2011) The properties of the visual system in the Australian desert ant Melophorus bagoti. Arthropod Structure & Development 40 (2011) 128-134

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