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Author Raven, J.A.; Cockell, C.S.
Title Influence on photosynthesis of starlight, moonlight, planetlight, and light pollution (reflections on photosynthetically active radiation in the universe) Type Journal Article
Year 2006 Publication Astrobiology Abbreviated Journal Astrobiology
Volume 6 Issue 4 Pages 668-675
Keywords Plants
Abstract Photosynthesis on Earth can occur in a diversity of organisms in the photosynthetically active radiation (PAR) range of 10 nmol of photons m(-2) s(-1) to 8 mmol of photons m(-2) s(-1). Similar considerations would probably apply to photosynthetic organisms on Earth-like planets (ELPs) in the continuously habitable zone of other stars. On Earth, starlight PAR is inadequate for photosynthetically supported growth. An increase in starlight even to reach the minimum theoretical levels to allow for photosynthesis would require a universe that was approximately ten million times older, or with a ten million times greater density of stars, than is the case for the present universe. Photosynthesis on an ELP using PAR reflected from a natural satellite with the same size as our Moon, but at the Roche limit, could support a low rate of photosynthesis at full Moon. Photosynthesis on an ELP-like satellite of a Jupiter-sized planet using light reflected from the planet could be almost 1% of the rate in full sunlight on Earth when the planet was full. These potential contributions to photosynthesis require that the contribution is compared with the rate of photosynthesis driven by direct radiation from the star. Light pollution on Earth only energizes photosynthesis by organisms that are very close to the light source. However, effects of light pollution on photosynthesis can be more widespread if the photosynthetic canopy is retained for more of the year, caused by effects on photoperiodism, with implications for the influence of civilizations on photosynthesis.
Address Plant Research Unit, University of Dundee at SCRI, Scottish Crop Research Institute, Invergowrie, Dundee, United Kingdom
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Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1557-8070 ISBN Medium
Area Expedition Conference
Notes PMID:16916290 Approved no
Call Number LoNNe @ christopher.kyba @ Serial (down) 1198
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Author Powe, N.A; Willis, K.G.; Garrod, G.D.
Title Difficulties in Valuing Street Light Improvement: Trust, Surprise and Bound Effects Type Journal Article
Year 2006 Publication Applied Economics Abbreviated Journal
Volume 38 Issue 4 Pages 371–381
Keywords Economics
Abstract
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Notes Approved no
Call Number LoNNe @ kagoburian @ Serial (down) 1055
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Author Morgan Taylor, M.
Title Light Pollution and Nuisance: The Enforcement Guidance for Light as a Statutory Nuisance. Type Journal Article
Year 2006 Publication Journal of Planning & Environmental Law Abbreviated Journal
Volume Issue Pages 1114–1127
Keywords Regulations
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Notes Approved no
Call Number LoNNe @ kagoburian @ Serial (down) 1048
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Author Fisher, N.A.
Title Reclaiming the „Dark Sky“. Type Journal Article
Year 2006 Publication Electrical Contracting Products Abbreviated Journal
Volume 9 Issue 6 Pages 30–31
Keywords Energy; Lighting
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Notes Approved no
Call Number LoNNe @ kagoburian @ Serial (down) 1036
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Author Habib, A.; Pullivelli, A.; Mitishita, E.; Ghanma, M.; Kim, E.-M.
Title Stability analysis of low-cost digital cameras for aerial mapping using different georeferencing techniques. Type Journal Article
Year 2006 Publication The Photogrammetric Record Abbreviated Journal
Volume 21 Issue 113 Pages 29–43
Keywords Remote Sensing
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Notes Approved no
Call Number LoNNe @ kagoburian @ Serial (down) 944
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