... restrained. Vision Compound eye Contrast sensitivity Spatial resolution Behavioural state Australian Research Council http://dx.doi.org/10.13039/501100000923 DP160102658 Animals have evolved a diversity of visual systems which reflect the varied visual tasks they face...

... Coraebus undatus using microscopy, spectrometry, polarimetry, electroretinography and intracellular recordings of photoreceptor cell responses. The compound eyes are built of a highly unusual mosaic of mirror-symmetric or chiral ommatidia that are randomly rotated along the body axes. Each ommatidium has...

...: Aphalaridae) . J. Exp. Biol.   218 , 1564 - 1571 . 10.1242/jeb.120808 Fischer , S. , Meyer-Rochow , V. B. and Müller , C. H. G. ( 2014 ). Compound eye miniaturization in Lepidoptera: a comparative morphological analysis . Acta Zool.   95 , 438 - 464 . 10.1111/azo.12041 Ghim...

... owing to smaller sensory organs. To test this hypothesis, we studied whether reduced spatial resolution of compound eyes influences obstacle detection or obstacle avoidance in five different species of ants. We trained all ant species to travel to a sugar feeder. During their return journeys, we placed...

... of mysid crustaceans. Compound eye Visual adaptation Ecophysiology Rhodopsin Metarhodopsin Rhabdom Photoreceptors are susceptible to damage from the very functions they are designed to perform most efficiently: photon capture and signal amplification. Light absorption...

... ocelli and a pair of compound eyes, maximally sensitive to green light. The ommatidia contain a tiered, fused rhabdom, consisting of the rhabdomeres of 9–12 photoreceptor cells with sensitivity peak wavelengths at 356, 413, 480 and 530 nm. The photoreceptors in a large dorsal rim area have straight...

... , detect polarized light through a specialized dorsal rim area (DRA) in their compound eye. To better understand retinal mechanisms underlying visual navigation, we compared opsin expression, spectral and polarization sensitivities and response–stimulus intensity functions in the DRA and main retina...

... for correspondence ( [email protected] ) 21 11 2011 5 3 2012 © 2012. 2012 e-vector discrimination compound eye predation Except for the weak phenomenon of Haidinger's brush ( Haidinger, 1844 ; Le Floch et al., 2010 ), humans lack polarisation vision. Animals, however, are known...

...Sebastian Schwarz; Laurence Albert; Antoine Wystrach; Ken Cheng Many animal species, including some social hymenoptera, use the visual system for navigation. Although the insect compound eyes have been well studied, less is known about the second visual system in some insects, the ocelli. Here we...

... for correspondence ( [email protected] ) 1 9 2010 © 2010. 2010 opsin photoreceptor compound eye insect colour vision Parnassius glacialis The spectral sensitivity of a photoreceptor is primarily determined by the absorption spectrum of its visual pigment molecules. A visual...

... of the larvae and compound eyes of the adults were removed and the responses of the animals to photoperiod were compared to those of intact beetles. When all the stemmata were removed,larvae pupated without entering diapause under both long-day and short-day conditions, indicating that the larvae lacking...

... – in the compound eye of the fiddler crab Uca vomeris . Using an in vivo pseudopupil method we determined sizes and viewing directions of ommatidia and created a complete eye map of optical and sampling resolution across the visual field. Our results reveal five distinct eye regions (ventral, dorsal,frontal...

... behaviours, visual mate choice in particular, are studied. * Author for correspondence (e-mail: [email protected] ) © The Company of Biologists Limited 2008 2008 mate recognition UV vision photoreceptor compound eye colour vision wing reflection spectra Humans cannot see...

... compound eyes, a relatively light-insensitive eye design that is best suited to vision in bright light. Despite this, nocturnal bees and wasps are able to forage at night, with many species capable of flying through a dark and complex forest between the nest and a foraging site, a behaviour that relies...

...Matthew M. Parsons; Holger G. Krapp; Simon B. Laughlin SUMMARY In the blowfly Calliphora vicina , lobula plate tangential cells(LPTCs) estimate self-motion by integrating local motion information from the compound eyes. Each LPTC is sensitive to a particular (preferred) rotation of the fly's head...

...Sonja Kleinlogel; N. Justin Marshall SUMMARY Gonodactyloid stomatopod crustaceans possess polarization vision, which enables them to discriminate light of different e-vector angle. Their unusual apposition compound eyes are divided by an equatorial band of six rows of enlarged, structurally...

...Yuichi Takeuchi; Kentaro Arikawa; Michiyo Kinoshita SUMMARY Spatial resolution of insect compound eyes is much coarser than that of humans: a single pixel of the human visual system covers about 0.008°whereas that of diurnal insects is typically about 1.0°. Anatomically, the pixels correspond...

... spectral filters appears to be approximately 1 (PR) and 2 (DR). * Author for correspondence (e-mail: [email protected] ) 12 5 2004 © The Company of Biologists Limited 2004 2004 compound eye colour vision spectral filter rhodopsin spectral sensitivity Animal eyes...

...Johannes Spaethe; Lars Chittka SUMMARY In the eusocial bumblebees, distinct size variation occurs within the worker caste of a colony. We show that there are pronounced differences in compound eye optical quality between individual workers in Bombus terrestris . Using scanning electron microscopy...

...Xudong Qiu; Kentaro Arikawa SUMMARY The compound eye of the small white butterfly Pieris rapae crucivora contains three anatomically distinct types of ommatidia. They differ in pigmentation around the rhabdom, colour of tapetal reflection and violet light-induced autofluorescence, indicating...