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Author Cottam, C.
Title A shower of grebes Type Journal Article
Year (up) 1929 Publication The Condor Abbreviated Journal
Volume 31 Issue 1 Pages 80-81
Keywords Animals; Birds
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Notes Approved no
Call Number GFZ @ kyba @ Serial 2424
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Author Bissonnette, T.H.
Title Studies on the sexual cycle in birds. I. Sexual maturity, its modification and possible control in the European starling (Sturnus vulgaris) Type Journal Article
Year (up) 1930 Publication American Journal of Anatomy Abbreviated Journal Am. J. Anat.
Volume 45 Issue 2 Pages 289-305
Keywords Animals
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ISSN 0002-9106 ISBN Medium
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Notes Approved no
Call Number GFZ @ kyba @ Serial 2402
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Author Kennard, D.C.; Chamberlin, V.D.
Title All-night Light for Layers Type Report
Year (up) 1931 Publication Abbreviated Journal
Volume Bulletin 476 Issue Pages
Keywords Animals
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Corporate Author Ohio Agricultural Experiment Station Thesis
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Notes Approved no
Call Number GFZ @ kyba @ Serial 2392
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Author Bissonnette, T.H.
Title Modification of Mammalian Sexual Cycles; Reactions of Ferrets (Putorius vulgaris) of Both Sexes to Electric Light Added After Dark in November and December Type Journal Article
Year (up) 1932 Publication Proceedings of the Royal Society B: Biological Sciences Abbreviated Journal Proceedings of the Royal Society B: Biological Sciences
Volume 110 Issue 767 Pages 322-336
Keywords Animals
Abstract Studies by Rowan (1930 and preceding papers) and Bissonnette (1931, a, b, 1932, a, b, and preceding papers) and Bissonnette and Wadlund (1931) have shown that in juncos, canaries, crows and starlings, at least, among birds, the sexual cycle is conditioned to a great degree by daily light ration. Sexual activity in both males and females can be modified at will by altering the daily light ration with controlled electric lighting from ordinary incandescent bulbs. Gonad changes, controllable in this way, are closely correlated with migrations in juncos and crows, as demonstrated by Rowan (1930, and preceding papers), who, however, maintains that it is the added periods of muscular exercise, rather than the light, as such, that condition these changes, in spite of the fact that it is always the added light he uses, rather than exercise, to get his effects. Bissonnette disagrees, and holds it is the light that is the major factor in conditioning the changes in sexual cycles. It has been found, also, that intensity and colour, or wave-length, as well as daily period of light are factors in conditioning sexual activity in starlings, and the method of increase of light also plays a part (Bissonnette, 1931, b, 1932 ; Bissonnette and Wadlund, 1931).
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ISSN 0962-8452 ISBN Medium
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Notes Approved no
Call Number GFZ @ kyba @ Serial 2389
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Author Bennett, M.G.
Title The visual range of lights at night, and its relation to the visual range of ordinary objects by day. Type Journal Article
Year (up) 1932 Publication Quarterly Journal of the Royal Meteorological Society Abbreviated Journal QJ Roy. Met. Soc
Volume 58 Issue Pages 259-271
Keywords Vision; Skyglow
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Notes Approved no
Call Number GFZ @ kyba @ Serial 2414
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