Research Topics
| Doekele G StavengaSummaryAffiliation: University of Groningen Country: The Netherlands Publications
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Detail Information
Publications
Ommatidial heterogeneity in the compound eye of the male small white butterfly, Pieris rapae crucivoraXudong Qiu
Graduate School of Integrated Science, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan
Cell Tissue Res 307:371-9. 2002..Type II ommatidia strongly fluoresce under ultra-violet and violet epi-illumination. The three types of ommatidia are randomly distributed. The ommatidial heterogeneity is presumably crucial for color discrimination...- Angular and spectral sensitivity of fly photoreceptors. I. Integrated facet lens and rhabdomere opticsD G Stavenga
Department of Neurobiophysics, University of Groningen, 9747 AG Groningen, The Netherlands
J Comp Physiol A Neuroethol Sens Neural Behav Physiol 189:1-17. 2003..The angular sensitivity of fly photoreceptors is robust to defocus and largely wavelength independent for all except very slender rhabdomeres... - Colour in the eyes of insectsD G Stavenga
Department of Neurobiophysics, University of Groningen, 9747 AG Groningen, The Netherlands
J Comp Physiol A Neuroethol Sens Neural Behav Physiol 188:337-48. 2002..The tapetum in the eyes of butterflies probably enhances the spectral sensitivity of proximal long-wavelength photoreceptors. Pigment granules lining the rhabdom fine-tune the sensitivity spectra... - Reflections on colourful ommatidia of butterfly eyesDoekele G Stavenga
Department of Neurobiophysics, University of Groningen, NL 9747 AG Groningen, The Netherlands
J Exp Biol 205:1077-85. 2002..Many butterfly species appear to have red-reflecting ommatidia, which is interpreted to indicate the presence of red-sensitive photoreceptors... - Angular and spectral sensitivity of fly photoreceptors. III. Dependence on the pupil mechanism in the blowfly CalliphoraD G Stavenga
Department of Neurobiophysics, University of Groningen, 9747 AG Groningen, The Netherlands
J Comp Physiol A Neuroethol Sens Neural Behav Physiol 190:115-29. 2004..The geometrical size of the rhabdomere governs the angular sensitivity of fly photoreceptors in the dark-adapted state, but diffraction takes over in the fully light-adapted state... - Retinal regionalization and heterogeneity of butterfly eyesD G Stavenga
Department of Neurobiophysics, University of Groningen, The Netherlands
Naturwissenschaften 88:477-81. 2001..Sometimes the eyeshine is locally uniform, but often it is heterogeneous. It is hypothesized that the regional characteristics as well as the local heterogeneity are adaptations that optimize spectral discrimination... - Visual acuity of fly photoreceptors in natural conditions--dependence on UV sensitizing pigment and light-controlling pupilDoekele G Stavenga
Department of Neurobiophysics, University of Groningen, Nijenborgh 4, NL 9747 AG Groningen, The Netherlands
J Exp Biol 207:1703-13. 2004..The sensitizing pigment does not play an appreciable role in modifying spatial acuity, neither in the dark- nor the light-adapted state, due to the dominant contribution of green light in natural light sources... 
Butterfly wing colours: scale beads make white pierid wings brighterD G Stavenga
Department of Neurobiophysics, University of Groningen, Nijenborgh 4, NL 9747 AG Groningen, The Netherlands
Proc Biol Sci 271:1577-84. 2004..The beads presumably cause the distinct matt-white colour of the wings of pierids and function to increase the reflectance amplitude. This will improve the visual discrimination between conspecific males and females...- Angular and spectral sensitivity of fly photoreceptors. II. Dependence on facet lens F-number and rhabdomere type in DrosophilaD G Stavenga
Department of Neurobiophysics, University of Groningen, 9747 AG, Groningen, The Netherlands
J Comp Physiol A Neuroethol Sens Neural Behav Physiol 189:189-202. 2003..The results are used to interpret the small F-number of Drosophila facet lenses. Presumably the small head puts a limit to the size of the facet lens and favors a short focal length... - Brilliant camouflage: photonic crystals in the diamond weevil, Entimus imperialisBodo D Wilts
Computational Physics, Zernike Institute for Advanced Materials, University of Groningen, Groningen 9747AG, The Netherlands
Proc Biol Sci 279:2524-30. 2012..While the close-distance colourful shininess of E. imperialis may facilitate intersexual recognition, the diffuse green reflectance of the elytra when seen at long-distance provides cryptic camouflage... 
Glass scales on the wing of the swordtail butterfly Graphium sarpedon act as thin film polarizing reflectorsDoekele G Stavenga
Computational Physics, Zernike Institute for Advanced Materials, University of Groningen, Groningen, NL9747AG, The Netherlands
J Exp Biol 215:657-62. 2012..Imaging scatterometry of single, isolated glass scales demonstrated that the reflected light can be strongly polarized, indicating that they function as polarizing reflectors...- Visual pigment spectra of the comma butterfly, Polygonia c-album, derived from in vivo epi-illumination microspectrophotometryKurt J A Vanhoutte
Department of Neurobiophysics, University of Groningen, Nijenborgh 4, 9747, Groningen, The Netherlands
J Comp Physiol A Neuroethol Sens Neural Behav Physiol 191:461-73. 2005..A UV rhodopsin with metarhodopsin absorbing maximally at 467 nm was revealed, and evidence for a blue rhodopsin was obtained indirectly... - Analyzing the reflections from single ommatidia in the butterfly compound eye with Voronoi diagramsKurt J A Vanhoutte
Department of Neurobiophysics, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
J Neurosci Methods 131:195-203. 2003..We provide two typical examples to demonstrate that the developed technique may be a powerful tool to characterize in vivo the heterogeneity of butterfly eyes and to study the dynamic control of the light flux by the pupil mechanism... - Kingfisher feathers--colouration by pigments, spongy nanostructures and thin filmsDoekele G Stavenga
Computational Physics, Zernike Institute for Advanced Materials, University of Groningen, NL 9747 AG Groningen, The Netherlands
J Exp Biol 214:3960-7. 2011..This can be directly understood with thin film modelling, assuming a somewhat variable cortex thickness. The cortex reflectance appears to be small but not negligible with respect to the pigmentary and structural barb reflectance... - Spatial reflection patterns of iridescent wings of male pierid butterflies: curved scales reflect at a wider angle than flat scalesPrimoz Pirih
Department of Neurobiophysics, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
J Comp Physiol A Neuroethol Sens Neural Behav Physiol 197:987-97. 2011..The restricted spatial visibility of iridescence presumably plays a role in intraspecific signalling... - Spectral reflectance properties of iridescent pierid butterfly wingsBodo D Wilts
Department of Neurobiophysics, University of Groningen, The Netherlands
J Comp Physiol A Neuroethol Sens Neural Behav Physiol 197:693-702. 2011..The spectral properties of the pigmentary and structural colourations are presumably tuned to the spectral sensitivities of the butterflies' photoreceptors... - Hemispherical Brillouin zone imaging of a diamond-type biological photonic crystalBodo D Wilts
Computational Physics, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
J R Soc Interface 9:1609-14. 2012..imperialis are structurally optimized for high reflectance and may thus be well suited for use as a template for producing novel photonic devices, e.g. through biomimicry or direct infiltration from dielectric material... - Refractive index and dispersion of butterfly chitin and bird keratin measured by polarizing interference microscopyHein L Leertouwer
Computational Physics, Zernike Institute for Advanced Materials, University of Groningen, NL 9747 AG Groningen, The Netherlands
Opt Express 19:24061-6. 2011..517 and B = 8.80·10(3) nm(2) for the butterfly chitin and A = 1.532 and B = 5.89·10(3) nm(2) for the bird keratin... - Butterfly wing colors: glass scales of Graphium sarpedon cause polarized iridescence and enhance blue/green pigment coloration of the wing membraneDoekele G Stavenga
Department of Neurobiophysics, University of Groningen, Physics Chemistry Building, Nijenborgh 4, Groningen, 9747 AG, The Netherlands
J Exp Biol 213:1731-9. 2010..A few ventral forewing patches have diffusely scattering, white scales that also enhance the blue/green wing coloration when observed from the dorsal side... - An expanded set of photoreceptors in the Eastern Pale Clouded Yellow butterfly, Colias eratePrimoz Pirih
Department of Neurobiophysics, University of Groningen, Groningen, The Netherlands
J Comp Physiol A Neuroethol Sens Neural Behav Physiol 196:501-17. 2010..We found a 20-fold variation of sensitivity within the cells of one green class, implying possible photoreceptor subfunctionalisation. We propose an allocation scheme of the receptor classes into the three ventral ommatidial types... - Photoreceptor spectral sensitivities of the Small White butterfly Pieris rapae crucivora interpreted with optical modelingDoekele G Stavenga
Department of Neurobiophysics, University of Groningen, 9747 AG Groningen, The Netherlands
J Comp Physiol A Neuroethol Sens Neural Behav Physiol 197:373-85. 2011..The models serve to explain the photoreceptor spectral sensitivities as well as the eye shine... - On visual pigment templates and the spectral shape of invertebrate rhodopsins and metarhodopsinsDoekele G Stavenga
Department of Neurobiophysics, University of Groningen, Groningen, The Netherlands
J Comp Physiol A Neuroethol Sens Neural Behav Physiol 196:869-78. 2010..However, the best fitting template spectrum slightly deviates from the experimental spectra near the peak and in the long-wavelength tail. Improved formulae for fitting the fly metarhodopsin spectra are proposed... - Light dependence of calcium and membrane potential measured in blowfly photoreceptors in vivoJ Oberwinkler
Department of Neurobiophysics, University of Groningen, 9747 AG Groningen, The Netherlands
J Gen Physiol 112:113-24. 1998..The percentage of the Ca2+ influx that is buffered gradually decreases with increasing Ca2+ concentrations; at cytosolic Ca2+ concentration levels above 10 microM, buffering becomes minimal... - Differential effects of ninaC proteins (p132 and p174) on light-activated currents and pupil mechanism in Drosophila photoreceptorsC A Hofstee
Department of Biophysics, University of Groningen, The Netherlands
Vis Neurosci 13:897-906. 1996..The diverse phenotypes observed may suggest multiple roles calmodulin distribution for controlling response termination and regulating pigment migration in Drosophila photoreceptors... - Imaging scatterometry and microspectrophotometry of lycaenid butterfly wing scales with perforated multilayersBodo D Wilts
Department of Neurobiophysics, University of Groningen, NL 9747 AG Groningen, The Netherlands
J R Soc Interface 6:S185-92. 2009..The width of the reflectance spectra, measured with a microspectrophotometer, decreased with the degree of perforation, in agreement with the calculations based on multilayer theory... - Metarhodopsin control by arrestin, light-filtering screening pigments, and visual pigment turnover in invertebrate microvillar photoreceptorsDoekele G Stavenga
Department of Neurobiophysics, University of Groningen, Groningen, The Netherlands
J Comp Physiol A Neuroethol Sens Neural Behav Physiol 197:227-41. 2011..A simple model for the visual pigment-arrestin cycle is used to illustrate the dependence of the visual pigment population states on light intensity, arrestin levels and pigment turnover... - Polarized iridescence of the multilayered elytra of the Japanese jewel beetle, Chrysochroa fulgidissimaDoekele G Stavenga
Department of Neurobiophysics, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
Philos Trans R Soc Lond B Biol Sci 366:709-23. 2011..The extreme polarized iridescence exhibited by the elytra of the jewel beetle may have a function in intraspecific recognition... - Wing coloration and pigment gradients in scales of pierid butterfliesMarco A Giraldo
Department of Neurobiophysics, University of Groningen, Nijenborgh 4, NL 9747 AG, Groningen, The Netherlands
Arthropod Struct Dev 37:118-28. 2008.... - Imaging scatterometry of butterfly wing scalesD G Stavenga
Department of Neurobiophysics, University of Groningen, Groningen, The Netherlands
Opt Express 17:193-202. 2009..The instrument's performance is illustrated by measurements of the scattering profiles of the blue-iridescent dorsal wing scales of the nymphalid Morpho aega and the matte-green ventral wing scales of the lycaenid Callophrys rubi... - Far field scattering pattern of differently structured butterfly scalesM A Giraldo
Department of Neurobiophysics, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
J Comp Physiol A Neuroethol Sens Neural Behav Physiol 194:201-7. 2008..The green-yellow scales of Urania fulgens backscatter light in a narrow spatial angle, because of a multilayer structure in the scale body... - Calcium transients in the rhabdomeres of dark- and light-adapted fly photoreceptor cellsJ Oberwinkler
Department of Neurobiophysics, University of Groningen, NL 9747 AG Groningen, The Netherlands
J Neurosci 20:1701-9. 2000..The kinetics and absolute values of the free calcium concentration found to occur in the rhabdomere are suitable to mediate the fast feedback signals known to act on the fly phototransduction cascade... - Colors and pterin pigmentation of pierid butterfly wingsB Wijnen
Department of Neurobiophysics, University of Groningen, Nijenborgh 4, NL 9747 AG Groningen, The Netherlands
J Insect Physiol 53:1206-17. 2007..The evolution of pierid wing coloration is discussed... - Opsin cDNA sequences of a UV and green rhodopsin of the satyrine butterfly Bicyclus anynanaK J A Vanhoutte
Department of Neurobiophysics, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
Insect Biochem Mol Biol 32:1383-90. 2002..Whereas three LW absorbing rhodopsins were identified in the papilionid butterflies, only one green opsin was found in B. anynana... - Calcium imaging demonstrates colocalization of calcium influx and extrusion in fly photoreceptorsJ Oberwinkler
Department of Neurobiophysics, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
Proc Natl Acad Sci U S A 97:8578-83. 2000..This is functionally significant because it ensures rapid dark adaptation... - Sexual Dichromatism of the Damselfly Calopteryx japonica Caused by a Melanin-Chitin Multilayer in the Male Wing VeinsDoekele G Stavenga
Computational Physics, Zernike Institute for Advanced Materials, University of Groningen, Groningen, The Netherlands
PLoS ONE 7:e49743. 2012..The obtained melanin refractive index data will be useful in optical studies on melanized tissues, especially where melanin is concentrated in layers, thus causing iridescence... - Dramatic colour changes in a bird of paradise caused by uniquely structured breast feather barbulesDoekele G Stavenga
Department of Neurobiophysics, University of Groningen, 9747 AG, Groningen, The Netherlands
Proc Biol Sci 278:2098-104. 2011..The fact that the parotia's breast feathers seem to be specifically adapted to give much stronger colour changes than normal structural coloration implies that colour change is important in their courtship display... - One rhodopsin per photoreceptor: Iro-C genes break the ruleDoekele G Stavenga
Department of Neurobiophysics, University of Groningen, Groningen, The Netherlands
PLoS Biol 6:e115. 2008 - Sexual dichroism and pigment localization in the wing scales of Pieris rapae butterfliesM A Giraldo
Department of Neurobiophysics, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
Proc Biol Sci 274:97-102. 2007..r. crucivora. Consequently, P. r. crucivora exhibits a strong sexual dichroism that is absent in P. r. rapae... - Partial coherence and other optical delicacies of lepidopteran superposition eyesD G Stavenga
Department of Neurobiophysics, University of Groningen, NL 9747 AG Groningen, The Netherlands
J Exp Biol 209:1904-13. 2006..The transmittance of the superposition aperture of moths and skippers is improved by the corneal nipple arrays of the facet lenses, but quantitative assessment shows that the effect is minor... - Calcium homeostasis in photoreceptor cells of Drosophila mutants inaC and trp studied with the pupil mechanismC A Hofstee
Department of Biophysics, University of Groningen, The Netherlands
Vis Neurosci 13:257-63. 1996.... - Does Ca2+ reach millimolar concentrations after single photon absorption in Drosophila photoreceptor microvilli?M Postma
Department of Neurobiophysics, University of Groningen, Nijenborgh 4, NL 9747 AG Groningen, The Netherlands
Biophys J 77:1811-23. 1999..These very high concentrations show that the microvilli of fly photoreceptors are unique structures in which the Ca2+ signaling is even more extreme than in calcium concentration microdomains very close to Ca2+ channels... - Dioptrics of the facet lenses of male blowflies Calliphora and ChrysomyiaD G Stavenga
Department of Biophysics, State University, Groningen, The Netherlands
J Comp Physiol A 166:365-71. 1990..40 and 1.43, with the lowest values in the largest lenses. 4. The F-number calculated from the experimental data ranges from 1.5 to 2.2. It is argued that the range of effective F-numbers is 2.1-2.4... - Light on the moth-eye corneal nipple array of butterfliesD G Stavenga
Department of Neurobiophysics, University of Groningen, Groningen, The Netherlands
Proc Biol Sci 273:661-7. 2006..A similar evolutionary development can be noticed for the tapetum of the ommatidia of lepidopteran eyes. It is most elaborate in moth-eyes, but strongly reduced in most diurnal butterflies and absent in papilionids... - A unique visual pigment expressed in green, red and deep-red receptors in the eye of the small white butterfly, Pieris rapae crucivoraMotohiro Wakakuwa
Graduate School of Integrated Science, Yokohama City University, Yokohama 236-0027, Japan
J Exp Biol 207:2803-10. 2004..The peak absorbance of the two spectral filters appears to be approximately 1 (PR) and 2 (DR)... - Absence of eye shine and tapetum in the heterogeneous eye of Anthocharis butterflies (Pieridae)Shin Ya Takemura
Graduate School of Integrated Science, Yokohama City University, 22 2 Seto, Yokohama 236 0027, Japan
J Exp Biol 210:3075-81. 2007..Anatomical investigations also revealed that, considering rhabdom shape, peri-rhabdomal pigment clusters and autofluorescence, the ommatidia can be divided in at least two different types, which are randomly distributed in the retina... - Spectral organization of ommatidia in flower-visiting insectsMotohiro Wakakuwa
Laboratory of Neuroethology, The Graduate University for Advanced Studies Sokendai, Hayama, Japan
Photochem Photobiol 83:27-34. 2007.... - Coexpression of two visual pigments in a photoreceptor causes an abnormally broad spectral sensitivity in the eye of the butterfly Papilio xuthusKentaro Arikawa
Graduate School of Integrated Science, Yokohama City University, Yokohama 236 0027, Japan
J Neurosci 23:4527-32. 2003..This work provides the first compelling evidence that multiple visual pigments participate in phototransduction in single invertebrate photoreceptors... - Sexual dimorphism of short-wavelength photoreceptors in the small white butterfly, Pieris rapae crucivoraKentaro Arikawa
Graduate School of Integrated Science, Yokohama City University, Yokohama 236 0027, Japan
J Neurosci 25:5935-42. 2005..The narrow-band spectral sensitivity of the male dB photoreceptors probably evolved to improve the discrimination of the different wing colors of male and female P. rapae crucivora in the short-wavelength region of the spectrum...