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Author (up) Baker, G.C.; Dekker, R.W.R.J.
Title Lunar synchrony in the reproduction of the Moluccan Megapode Megapodius wallacei Type Journal Article
Year 2000 Publication Ibis Abbreviated Journal
Volume 142 Issue 3 Pages 382-388
Keywords Moluccan Megapode; Megapodius wallacei; birds; nesting; reproduction; animals; *Moon
Abstract The Moluccan Megapode Megapodius wallacei uses heat generated by the sun to incubate its eggs. It buries the eggs deep in the sand of sun-exposed beaches and open sandy areas on islands in the Moluccas, Indonesia. The eggs are laid at night and left to incubate for two to three months without parental care. We present evidence that the Moluccan Megapode exhibits lunar synchrony in the timing of egg-laying, its spatial distribution of egg burrows and in its behaviour at communal nesting grounds. More Moluccan Megapodes visit the nesting grounds on bright nights than during the new moon. Data collected on the spatial distribution and depth of egg burrows also exhibit lunar periodicity. On moonlit nights, the birds excavate burrows in communal groups and spend longer at the nesting ground digging deeper burrows. Lunaphilia and lunar periodicity of reproduction are rarely documented in birds. We discuss possible explanations for these behaviours in the Moluccan Megapode.
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ISSN 0019-1019 ISBN Medium
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Notes Approved no
Call Number IDA @ john @ Serial 52
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Author (up) Boyce, P.R.
Title Perceptions of Safety at Night in Different Lighting Conditions Type Journal Article
Year 2000 Publication Lighting Research and Technology Abbreviated Journal
Volume 32 Issue 2 Pages 79–91
Keywords Society; Safety
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Call Number LoNNe @ kagoburian @ Serial 1008
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Author (up) Cinzano, P.
Title The growth of light pollution in north-eastern Italy from 1960 to 1995 Type Journal Article
Year 2000 Publication Memorie Della Societ{à} Astronomica Italiana Abbreviated Journal
Volume 71 Issue Pages 159
Keywords Remote Sensing
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Call Number LoNNe @ kagoburian @ Serial 913
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Author (up) Cinzano, P.; Falchi, F.; Elvidge, C.D.; Baugh, K.E.
Title The artificial night sky brightness mapped from DMSP satellite Operational Linescan System measurements Type Journal Article
Year 2000 Publication Monthly Notices of the Royal Astronomical Society Abbreviated Journal
Volume 318 Issue 3 Pages 641-657
Keywords Remote Sensing
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ISSN 0035-8711 ISBN Medium
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Notes Approved no
Call Number LoNNe @ kagoburian @ Serial 976
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Author (up) Cinzano, P.; Stagni, R.
Title The colors of the sky glow. Type Journal Article
Year 2000 Publication Mem Soc Astron Ita Abbreviated Journal
Volume 71 Issue Pages 231-234.
Keywords Skyglow
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Call Number LoNNe @ kagoburian @ Serial 557
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Author (up) Doll, C.N.H.; Muller, J.; Elvidge, C.D.
Title Night-time Imagery as a Tool for Global Mapping of Socioeconomic Parameters and Greenhouse Gas Emissions. Type Journal Article
Year 2000 Publication Ambio Abbreviated Journal
Volume 29 Issue 3 Pages 157-162
Keywords Economics
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Notes Approved no
Call Number LoNNe @ christopher.kyba @ Serial 442
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Author (up) Eisenbeis, G.; Hassel, F.
Title Zur Anziehung nachtaktiver Insekten durch Straßenlaternen-eine Studie kommunaler Beleuchtungseinrichtungen in der Agrarlandschaft Rheinhessens. Type Journal Article
Year 2000 Publication Natur Und Landschaft Abbreviated Journal
Volume 4 Issue Pages 145–156
Keywords Animals
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Call Number LoNNe @ kagoburian @ Serial 596
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Author (up) Falchi, F.; Cinzano, P.
Title Measuring and Modelling Light Pollution. Type Journal Article
Year 2000 Publication Mem Soc Astron Ital Abbreviated Journal
Volume 71 Issue Pages 139
Keywords Skyglow
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Call Number LoNNe @ kagoburian @ Serial 558
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Author (up) Flannagan, M.J.; Sivak, M.; Traube, E.C.; Kojima, S.
Title Effects of Overall Low-Beam Intensity on Seeing Distance in the Presence of Glare Type Journal Article
Year 2000 Publication Transportation Human Factors Abbreviated Journal Transportation Human Factors
Volume 2 Issue 4 Pages 313-330
Keywords Public Safety; Vision
Abstract Previous studies have demonstrated that current low-beam headlamps do not provide adequate seeing distance for safety. Could this situation be improved by providing more total light from low-beam headlamps, leaving the relative distribution of light unchanged? Although such a proposal is probably not the best practical solution, it is important to consider some of the visual consequences of a general increase in light to analyze the overall problem of low-beam headlighting.

In a nighttime field study we measured seeing distance in the presence of glare as a function of headlamp intensity, always varying the intensity of the seeing light and glare light by the same proportion. Increasing intensity by a factor of about 3.8 increased seeing distance by about 17% for both young and old drivers. This result is consistent with predictions from quantitative vision modeling using veiling luminance to represent the disabling effects of glare. We also collected subjective estimates of discomfort glare and found, as expected, that the higher intensities produced substantially more discomfort.

Our findings suggest that, if objective visual performance is the only criterion, there is no clear upper limit to how intense low-beam headlamps should be. However, there may be a level at which people simply will not tolerate the subjectively discomforting effects of glare, or at which glare indirectly affects objective performance through its effects on subjective comfort. Because subjective discomfort, rather than objective visual performance, may be the limiting consideration for setting maximum glare levels, more research should be done to understand the nature and consequences of discomfort glare, including possible effects of subjective comfort on objective visual behavior.
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ISSN 1093-9741 ISBN Medium
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Call Number GFZ @ kyba @ Serial 2127
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Author (up) Garstang, R. H.
Title Limiting visual magnitude and night sky brightness Type Journal Article
Year 2000 Publication Memorie della Società Astronomia Italiana Abbreviated Journal
Volume 71 Issue Pages
Keywords Skyglow
Abstract We review the theory of visual thresholds and applications to the limiting magnitude of a telescope and of the eyes, based on Schaefers's model with minor improvements. We apply out formulation to the Yerkes Observatory refractor and to naked eye observations at Mount Wilson Observatory. We reanalyze Bowen's telescopic observations at Mount Wilson by his approximate method and by our more elaborate theory. An extension of his method leads to a determination of the night sky brightness of the visual activity of the observer is assumed to be average. Our more elaborate method allows a determination of the sky brightness, the visual acuity of the observer, and the average seeing during the observations.
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Call Number IDA @ intern @ Serial 2623
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