| Records |
| Author |
Kyba, C.C.M.; Wagner, J.M.; Kuechly, H.U.; Walker, C.E.; Elvidge, C.D.; Falchi, F.; Ruhtz, T.; Fischer, J.; Hölker, F. |
| Title |
Citizen science provides valuable data for monitoring global night sky luminance |
Type |
Journal Article |
| Year |
2013 |
Publication |
Scientific Reports |
Abbreviated Journal |
Sci Rep |
| Volume |
3 |
Issue |
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Pages |
1835 |
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| Abstract |
The skyglow produced by artificial lights at night is one of the most dramatic anthropogenic modifications of Earth's biosphere. The GLOBE at Night citizen science project allows individual observers to quantify skyglow using star maps showing different levels of light pollution. We show that aggregated GLOBE at Night data depend strongly on artificial skyglow, and could be used to track lighting changes worldwide. Naked eye time series can be expected to be very stable, due to the slow pace of human eye evolution. The standard deviation of an individual GLOBE at Night observation is found to be 1.2 stellar magnitudes. Zenith skyglow estimates from the “First World Atlas of Artificial Night Sky Brightness” are tested using a subset of the GLOBE at Night data. Although we find the World Atlas overestimates sky brightness in the very center of large cities, its predictions for Milky Way visibility are accurate. |
| Address |
Institute for Space Sciences, Freie Universitat Berlin, Berlin, Germany. christopher.kyba@wew.fu-berlin.de |
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English |
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2045-2322 |
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PMID:23677222; PMCID:PMC3655480 |
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| Call Number |
IDA @ john @ |
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13 |
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Longcore, T.; Rich, C.; Mineau, P.; MacDonald, B.; Bert, D.G.; Sullivan, L.M.; Mutrie, E.; Gauthreaux Jr., S.A.; Avery, M.L.; Crawford, R.L.; Manville II, A.M.; Travis, E.R.; Drake, D. |
| Title |
Avian mortality at communication towers in the United States and Canada: which species, how many, and where? |
Type |
Journal Article |
| Year |
2013 |
Publication |
Biological Conservation |
Abbreviated Journal |
Biological Conservation |
| Volume |
158 |
Issue |
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Pages |
410-419 |
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Birds migrating to and from breeding grounds in the United States and Canada are killed by the millions in collisions with lighted towers and their guy wires. Avian mortality at towers is highly variable across species, and the importance to each population depends on its size and trajectory. Building on our previous estimate of avian mortality at communication towers, we calculated mortality by species and by regions. To do this, we constructed a database of mortality by species at towers from available records and calculated the mean proportion of each species killed at towers within aggregated Bird Conservation Regions. These proportions were combined with mortality estimates that we previously calculated for those regions. We then compared our estimated bird mortality rates to the estimated populations of these species in the United States and Canada. Neotropical migrants suffer the greatest mortality; 97.4% of birds killed are passerines, mostly warblers (Parulidae, 58.4%), vireos (Vireonidae, 13.4%), thrushes (Turdidae, 7.7%), and sparrows (Emberizidae, 5.8%). Thirteen birds of conservation concern in the United States or Canada suffer annual mortality of 1–9% of their estimated total population. Of these, estimated annual mortality is >2% for Yellow Rail (Coturnicops noveboracensis), Swainson’s Warbler (Limnothlypis swainsonii), Pied-billed Grebe (Podilymbus podiceps), Bay-breasted Warbler (Setophaga castanea), Golden-winged Warbler (Vermivora chrysoptera), Worm-eating Warbler (Helmitheros vermivorum), Prairie Warbler (Setophaga discolor), and Ovenbird (Seiurus aurocapilla). Avian mortality from anthropogenic sources is almost always reported in the aggregate (“number of birds killedâ€), which cannot detect the species-level effects necessary to make conservation assessments. Our approach to per species estimates could be undertaken for other sources of chronic anthropogenic mortality. |
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Communication towers; Mortality; Night lighting; Neotropical migrants; Collisions; Impact assessment; birds |
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0006-3207 |
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IDA @ john @ |
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54 |
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Elvidge, C.D.; Baugh, K.E.; Zhizhin, M.; Hsu, F.-C. |
| Title |
Why VIIRS data are superior to DMSP for mapping nighttime lights |
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Journal Article |
| Year |
2013 |
Publication |
Proceedings of the Asia-Pacific Advanced Network |
Abbreviated Journal |
APAN Proceedings |
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35 |
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62 |
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For more than forty years the U.S. Air Force Defense Meteorological Satellite Program (DMSP) Operational Linescan System (OLS) has been the only satellite system collecting global low-light imaging data. A series of twenty-four DMSP satellites have collected low-light imaging data. The design of the OLS has not changed significantly since satellite F-4 flew in the late 1970’s and OLS data have relatively coarse spatial resolution, limited dynamic range, and lack in-flight calibration. In 2011 NASA and NOAA launched the Suomi National Polar Partnership (SNPP) satellite carrying the first Visible Infrared Imaging Radiometer Suite (VIIRS) instrument. The VIIRS collects low light imaging data and has several improvements over the OLS’ capabilities. In this paper we contrast the nighttime low light imaging collection capabilities of these two systems and compare their data products. |
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2227-3026 |
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IDA @ john @ |
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198 |
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Franke, S.; Brüning, A.; Hölker, F.; Kloas, W. |
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Study of biological action of light on fish |
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Journal Article |
| Year |
2013 |
Publication |
Journal of Light & Visual Environment |
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37 |
Issue |
4 |
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LoNNe @ kagoburian @ |
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698 |
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Marquenie, J.M.; Donners, M.; Poot, H.; Steckel W.; de Witt, B. |
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Bird-Friendly Light Sources: Adapting the Spectral Composition of Artificial Lighting |
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Magazine Article |
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2013 |
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IEEE Industry Application Magazine |
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56-62 |
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LoNNe @ schroer @ |
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1088 |
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