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6 papers found.
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High contrast sensitivity for visually guided flight control in bumblebees

Many insects rely on vision to find food, to return to their nest and to carefully control their flight between these two locations. The amount of information available to support these tasks is, in part, dictated by the spatial resolution and contrast sensitivity of their visual systems. Here, we investigate the absolute limits of these visual properties for visually guided ...

How bumblebees use lateral and ventral optic flow cues for position control in environments of different proximity

generated across the retina as an animal moves through its world) Emily Baird and Marie Dacke contributed equally to this work. * Nellie Linander generated by translational motion to adjust their speed

Nocturnal insects use optic flow for flight control

Emily Baird () Eva Kreiss William Wcislo Eric Warrant Marie Dacke 0 Smithsonian Tropical Research Institute , Balboa, Republic of Panama 1 Department of Zoology, Rheinische Friedrich-Wilhelms

Elytra boost lift, but reduce aerodynamic efficiency in flying beetles

Johansson*, Sophia Engel, Emily Baird, Marie Dacke, Florian T. Muijres and Anders Hedenstro m Flying insects typically possess two pairs of wings. In beetles, the front pair has evolved into short, hardened

The Dung Beetle Dance: An Orientation Behaviour?

An interesting feature of dung beetle behaviour is that once they have formed a piece of dung into a ball, they roll it along a straight path away from the dung pile. This straight-line orientation ensures that the beetles depart along the most direct route, guaranteeing that they will not return to the intense competition (from other beetles) that occurs near the dung pile. Before ...

Hornets Can Fly at Night without Obvious Adaptations of Eyes and Ocelli

Hornets, the largest social wasps, have a reputation of being facultatively nocturnal. Here we confirm flight activity of hornet workers in dim twilight. We studied the eyes and ocelli of European hornets (Vespa crabro) and common wasps (Vespula vulgaris) with the goal to find the optical and anatomical adaptations that enable them to fly in dim light. Adaptations described for ...