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1-6 of 6
Keywords: signal
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Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2010) 213 (13): 2243–2255.
Published: 1 July 2010
... that could be limited to single colour patches. However, sexes may differ by multiple colours that could function as signals. Therefore, we used the Wilcoxon test to compare the ‘high contrast’ (HC) male and female colour distances, which were greater than or equal to the median for that sex and background...
Includes: Supplementary data
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2010) 213 (2): 271–277.
Published: 15 January 2010
... the use of dietary antioxidants, including carotenoids. As carotenoids are closely associated with the expression of secondary sexual signals, the allocation of carotenoids to sexual signal versus antioxidant defences may vary with age. In this study, we explored how carotenoid-based ornament...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2007) 210 (20): 3624–3635.
Published: 15 October 2007
... little or no effect on partial polarization or the e-vector angle of the reflected light. However, when the illumination angle changed, the partial polarization of the reflected light also changed. The spectral reflections of the signals were also affected by the angle of illumination...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2001) 204 (14): 2447–2459.
Published: 15 July 2001
... signal mate quality and are not a species-specific characteristic. We discuss the use of principal component analysis in analysing spectral data in the context of visual communication. We propose the alternative application of confidence intervals of averaged spectra as a novel straightforward...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2001) 204 (9): 1559–1575.
Published: 1 May 2001
..., which should be very useful for testing hypotheses that attempt to relate habitat light conditions and visual-system response to the evolution of signal design. * e-mail: [email protected] 01 02 2001 05 04 2001 © 2001 by Company of Biologists 2001 Anolis cristatellus...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2000) 203 (10): 1573–1579.
Published: 15 May 2000
...) and 300–400 Hz ( P =0.065). We recorded peak waggle phase vibrations from 206 to 292 Hz (244±28 Hz; mean ± S.D., N =11). The maximum measured signal − noise level was +12.4 dB during the waggle phase (mean μ5.8±2.7 dB). The maximum vibrational velocity, calculated from a filtered signal, was 128 µm s −1...