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Keywords: compound eye
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Journal Articles
J Exp Biol (2020) 223 (14): jeb225920.
Published: 22 July 2020
... 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...
Includes: Supplementary data
Journal Articles
In collection:
J Exp Biol (2019) 222 (12): jeb203018.
Published: 19 June 2019
... electroretinography reveals that miniaturisation in ants reduces both contrast sensitivity and spatial resolving power. Pattern electroretinogram Vision Spatial resolution Compound eye Acuity Lamina Size has profound implications for the biology of organisms. It plays a crucial role...
Journal Articles
J Exp Biol (2018) 221 (7): jeb177238.
Published: 6 April 2018
... 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...
Includes: Supplementary data
Journal Articles
J Exp Biol (2017) 220 (15): 2798–2808.
Published: 1 August 2017
... 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...
Includes: Supplementary data
Journal Articles
J Exp Biol (2017) 220 (11): 2047–2056.
Published: 1 June 2017
... 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...
Includes: Supplementary data
Journal Articles
J Exp Biol (2014) 217 (19): 3557–3568.
Published: 1 October 2014
... , 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...
Journal Articles
J Exp Biol (2012) 215 (12): 2128–2134.
Published: 15 June 2012
... for correspondence ( m.how@uq.edu.au ) 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...
Journal Articles
J Exp Biol (2011) 214 (6): 901–906.
Published: 15 March 2011
...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...
Journal Articles
J Exp Biol (2010) 213 (23): 4023–4029.
Published: 1 December 2010
..., 27%) or type III-d (91, 23%) (chi-square test, χ 2 =12.76, d.f.=2). * Author for correspondence ( arikawa@soken.ac.jp ) 1 9 2010 © 2010. 2010 opsin photoreceptor compound eye insect colour vision Parnassius glacialis The spectral sensitivity of a photoreceptor...
Journal Articles
J Exp Biol (2009) 212 (22): 3651–3655.
Published: 15 November 2009
... 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...
Journal Articles
J Exp Biol (2009) 212 (21): 3522–3532.
Published: 1 November 2009
... – 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...
Journal Articles
J Exp Biol (2008) 211 (23): 3698–3702.
Published: 1 December 2008
... compound eye colour vision wing reflection spectra © The Company of Biologists Limited 2008 2008 * Author for correspondence (e-mail: arikawa@soken.ac.jp ) ...
Journal Articles
J Exp Biol (2008) 211 (11): 1737–1746.
Published: 1 June 2008
... 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...
Journal Articles
J Exp Biol (2006) 209 (22): 4464–4474.
Published: 15 November 2006
...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...
Journal Articles
J Exp Biol (2006) 209 (21): 4262–4272.
Published: 1 November 2006
...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...
Journal Articles
J Exp Biol (2006) 209 (15): 2873–2879.
Published: 1 August 2006
...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...
Journal Articles
J Exp Biol (2004) 207 (16): 2803–2810.
Published: 15 July 2004
... spectral filters appears to be approximately 1 (PR) and 2 (DR). compound eye colour vision spectral filter rhodopsin spectral sensitivity Animal eyes need to have different classes of spectral photoreceptors for colour vision. The honeybee ( Apis mellifera ), the classical example...
Journal Articles
J Exp Biol (2003) 206 (19): 3447–3453.
Published: 1 October 2003
...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...
Journal Articles
J Exp Biol (2003) 206 (16): 2787–2793.
Published: 15 August 2003
...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...
Journal Articles
J Exp Biol (2002) 205 (2): 201–210.
Published: 15 January 2002
...Carolina E. Reisenman; Teresita C. Insausti; Claudio R. Lazzari SUMMARY We analysed dynamic changes in the ommatidial structure of the compound eyes of Triatoma infestans . This nocturnal insect possesses open-rhabdom eyes, in which a ring of six rhabdomeres from retinula cells 1–6 (R1–6) surrounds...