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Keywords: phototaxis
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Journal Articles
J Exp Biol (2021) 224 (10): jeb238386.
Published: 24 May 2021
... these values? We explored this question in the context of phototactic behavior in larval zebrafish. We demonstrate that larval zebrafish use phototaxis to maintain environmental luminance at a set point, that the value of this set point fluctuates on a time scale of seconds when environmental luminance changes...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (9): jeb199760.
Published: 30 April 2019
... possesses positive polarotaxis to horizontally polarized light. These hexapods are positively phototactic, live on the surface of calm waters and usually accumulate close to the riparian vegetation. In laboratory experiments, we measured the wavelength dependence of phototaxis and polarotaxis of P. aquatica...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (17): jeb183277.
Published: 6 September 2018
... behaviour Observation system Salmon lice Phototaxis Exploring the behaviour of, for example, zooplankton with minimal interference is key to understanding natural behaviour ( Price et al., 1988 ). Video analysis of zooplankton behaviour has been in use since cathode ray imaging was the state...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (7): jeb177972.
Published: 11 April 2018
... and dynamic set of visual responses, including a looming-object escape behavior characterized by erratic circular swims, as well as negative phototaxis characterized by sustained directional swims. Making use of mutant lines, we show that these two behaviors are mediated by distinct groups of photoreceptors...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (2): jeb163196.
Published: 19 January 2018
... a multisensory system that controls the motor function of unicellular fungal zoospores. We found that zoospores of Allomyces arbusculus exhibit both phototaxis and chemotaxis. Furthermore, we report that closely related Allomyces species respond to either the chemical or the light stimuli presented in this study...
Includes: Supplementary data
Journal Articles
J Exp Biol (2015) 218 (18): 2826–2829.
Published: 1 September 2015
... of Biologists Ltd 2015 Summary: Lateral lines in the African clawed frog contain melanopsin, suggesting they might be sensitive to light as well as water displacement. Melanopsin Lateral line Mechanoreceptor Photosensitivity Multimodality Phototaxis Although photoreceptors within...
Journal Articles
J Exp Biol (2015) 218 (11): 1693–1698.
Published: 1 June 2015
... focused on their biochemical interactions. Symsagittifera roscoffensis is well known for its positive phototaxis that is hypothesized to optimize the symbiont's light perception for photosynthesis. In this study, we conducted a detailed analysis of phototaxis using light sources of different wavelength...
Journal Articles
J Exp Biol (2015) 218 (6): 915–922.
Published: 15 March 2015
... v2.4.1 (Leica Microsystems). The initial light-avoidance experiments to test for negative phototaxis were performed with single specimens of E. rowelli ( N =12) as described previously for spectral experiments on P. hitoyensis (see Hering et al., 2012 ), except that only bright white light...
Includes: Supplementary data
Journal Articles
J Exp Biol (2014) 217 (18): 3254–3262.
Published: 15 September 2014
... The authors declare no competing financial interests. 15 4 2014 20 6 2014 © 2014. Published by The Company of Biologists Ltd 2014 Video playback Vision Anuran Multimodal Phototaxis The visual ecology of nocturnal anurans is relatively poorly understood ( Roth et al., 1998...
Includes: Supplementary data
Journal Articles
J Exp Biol (2011) 214 (14): 2398–2408.
Published: 15 July 2011
...C. Rosie Williams; Martin Alan Bees SUMMARY The term bioconvection encapsulates the intricate patterns in concentration, due to hydrodynamic instabilities, that may arise in suspensions of non-neutrally buoyant, biased swimming microorganisms. The directional bias may be due to light (phototaxis...
Journal Articles
J Exp Biol (2011) 214 (10): 1773–1782.
Published: 15 May 2011
... exposure in a reversible, time-dependent manner. Taken collectively, our results show that an extensive histaminergic system is present in Daphnia species, including the visual system, and that this amine is involved in the control of phototaxis in these animals. Immunoprocessing was conducted...
Journal Articles
J Exp Biol (2010) 213 (22): 3843–3851.
Published: 15 November 2010
...). Phototactic behavior was used to complement the MSP and electrophysiological data by providing an integrative assessment of visual sensitivity in T. longicornis . Phototaxis was measured in the horizontal plane in a Plexiglas trough (length 41 cm, width 6.5 cm, height 8 cm), which was divided into five equal...
Journal Articles
J Exp Biol (2004) 207 (14): 2373–2378.
Published: 15 June 2004
...David Booth; Alan J. A. Stewart; Daniel Osorio SUMMARY Male glow-worms Lampyris noctiluca find their bioluminescent mates at night by phototaxis. There is good evidence that location of mates by lampyrid beetles is achieved by a single spectral class of photoreceptor,whose spectral sensitivity...
Journal Articles
J Exp Biol (2003) 206 (14): 2507–2515.
Published: 15 July 2003
... transition from working in the hive to foraging for food outside, and cGMP treatment (which increases PKG activity)causes precocious foraging. We present two lines of evidence in support of the hypothesis that Amfor affects division of labor by modulating phototaxis. We first show that a subset of worker...
Journal Articles
J Exp Biol (1988) 137 (1): 477–485.
Published: 1 July 1988
...Kohji Matsuoka; Yasuo Nakaoka ABSTRACT Paramecium bursaria shows phototaxis by accumulating in a lighted region. Intracellular recordings from both chlorella-containing and chlorella-free cells showed that a step-increase in the light intensity induced a steady depolarization of membrane potential...
Journal Articles
J Exp Biol (1986) 126 (1): 513–517.
Published: 1 November 1986
... pompilius spectral sensitivity phototaxis In the present study the spectral sensitivity of Nautilus was measured using the positive phototactic response. No behavioural studies on spectral sensitivity appear to have been published for any cephalopod, nor indeed for any deep-sea animal...
Journal Articles
J Exp Biol (1985) 119 (1): 349–363.
Published: 1 November 1985
...Ronald V. Dimock, Jr; Cornelis Davids ABSTRACT Behavioural response spectra for phototaxis by four European species of water mites that are differently associated with freshwater mussels were determined. The wavelength for maximal stimulation of positive phototaxis and the corresponding energy...