Fluorescent Signaling in Parrots-Reference-Cited by-同舟云学术

Fluorescent Signaling in Parrots

Published:2002-01-04 Issue:5552 Volume:295 Page:92-92
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Arnold Kathryn E.¹,Owens Ian P. F.²,Marshall N. Justin³

Affiliation:

1. Division of Environmental and Evolutionary Biology, University of Glasgow, Glasgow G12 8QQ, UK.

2. Department of Biological Sciences and Natural Environment Research Council Centre for Population Biology, Imperial College at Silwood Park, Ascot, Berkshire SL5 7PY, UK.

3. Vision, Touch and Hearing Research Centre, University of Queensland, Brisbane, Queensland 4072, Australia.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference8 articles.

1. Boles W. E., Birds Int. 3, 76 (1990).

2. We used a two-way choice apparatus with the focal bird in a central compartment separated from stimulus birds by Perspex transparent between 300 and 700 nm. Illumination was provided by Daylight tubes and UV-rich light tubes to mimic natural conditions. Focal birds had 13 hours to acclimatize to the apparatus. Each trial lasted 4 hours. Stimulus birds were swapped between end compartments half-way through. F − treatment was obtained by daubing feathers with 40/60% (w/w) mixture of petroleum jelly and unscented UV-absorbing chemicals (7). F + treatment was petroleum jelly alone.

3. Under experimental light conditions reflectance spectra were measured normal to the crown with illumination at 45° to the feather surface. Ten measures from each of ten individuals were taken. There was no fluorescent sexual dimorphism. “Fluorescent contribution” was estimated with spectral sensitivities of the budgerigar's “short” (S) and “medium” (M) wavelength cones (4) combined with reflectance measurements of the F + and F − crown feathers. The percentage of fluorescent contribution is then given by {[(M × F + − S × F + ) − (M × F − − S × F − )]/(M × F + − S × F + )} × 100 (= 14.3%).

4. Bowmaker J. K., Heath L. A., Wilkie S. E., Hunt D. M., Vision Res. 37, 2183 (1997).

5. D. Osorio A. Miklósi Zs. Gonda Evol. Ecol. 13 673 (2001).

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