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The time course of dark adaptation in the bee: a phototactic and electrophysiological investigation
Author(s) -
KINDERMANN UTE,
HERTEL HORST
Publication year - 1986
Publication title -
physiological entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.693
H-Index - 57
eISSN - 1365-3032
pISSN - 0307-6962
DOI - 10.1111/j.1365-3032.1986.tb00387.x
Subject(s) - adaptation (eye) , biology , phototaxis , electrophysiology , sensitivity (control systems) , time constant , botany , neuroscience , electronic engineering , engineering , electrical engineering
. The time course of dark adaptation in Apis melifera L. was investigated by analyses of phototactic behaviour and electroretinogram (ERG). The behavioural results give a function for dark adaptation showing that in the dark after strong light adaptation the sensitivity increases exponentially with a time constant of 3 min. The sensitivity changes c. 2.4 log units during the time span of 5–720 s. The electrophysiological results indicate a smaller change in sensitivity at the level of the photoreceptors. Within a time span between 20 and 720 s the sensitivity increases during dark adaptation by a factor of 4.3 on a linear scale.