| Records |
| Author |
Rodríguez, A.; Rodríguez, B.; Curbelo, Á.J.; Pérez, A.; Marrero, S.; Negro, J.J.; Katzner, T. |
| Title |
Factors affecting mortality of shearwaters stranded by light pollution: Mortality of shearwaters attracted by light pollution |
Type |
Journal Article |
| Year |
2012 |
Publication |
Animal Conservation |
Abbreviated Journal |
Anim Conserv |
| Volume |
15 |
Issue |
5 |
Pages |
519-526 |
| Keywords |
Cory's shearwater; Calonectris diomedea; birds; petrels; collisions; animals |
| Abstract |
Every year and across the world, thousands of fledglings of different petrel species crash into human structures because they are disorientated by artificial lights during their first flights. As this phenomenon is rather predictable, rescue campaigns are organized to help birds to reach the ocean, but unfortunately, a low proportion gets hurt or dies. Despite the huge number of affected individuals, and the fact that the problem was detected a long time ago, little is known on this source of mortality. We have studied the factors (i.e. body condition, plumage development, fledging date and sex) influencing the mortality of Cory's Shearwater Calonectris diomedea fledglings stranded inland due to light pollution in Tenerife (Canary Islands) during two consecutive breeding seasons (2009 and 2010). Late fledglings showed lower values of a body condition index than early ones. No sex biases were detected, neither considering stranded birds overall, nor for recovery dates or in the body condition of rescued fledglings. Our results indicate that late birds stranded by lights showing abundant down are more susceptible to fatal collisions and that the lights do not selectively kill birds with lower body condition indices. An enhancement of veterinary care should be done during the last part of the fledging period when more fatal collisions occur, especially focused on fledglings with abundant down. More research to determine why some individuals end up disoriented around artificial lights and others do not is urgently needed to minimize or prevent fallouts. |
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1367-9430 |
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| Call Number |
IDA @ john @ |
Serial |
55 |
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Becker, A.; Whitfield, A.K.; Cowley, P.D.; Järnegren, J.; Naesje, T.F.; Crispo, E. |
| Title |
Potential effects of artificial light associated with anthropogenic infrastructure on the abundance and foraging behaviour of estuary-associated fishes |
Type |
Journal Article |
| Year |
2013 |
Publication |
Journal of Applied Ecology |
Abbreviated Journal |
J Appl Ecol |
| Volume |
50 |
Issue |
1 |
Pages |
43-50 |
| Keywords |
fish; biology; ecology |
| Abstract |
As a consequence of a positive phototaxic response, the findings of this study suggest that artificial light often associated with man-made structures has the potential to alter fish communities within urban estuarine ecosystems by creating optimal conditions for predators. Future coastal developments should consider the ecological implications of lighting on aquatic communities. We recommend that lighting be minimized around coastal infrastructure and the use of red lights, which have limited penetration though water, be considered. |
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0021-8901 |
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IDA @ john @ |
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64 |
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| Author |
Kolláth, Z.; Kránicz, B. |
| Title |
On the feasibility of inversion methods based on models of urban sky glow |
Type |
Journal Article |
| Year |
2014 |
Publication |
Journal of Quantitative Spectroscopy and Radiative Transfer |
Abbreviated Journal |
Journal of Quantitative Spectroscopy and Radiative Transfer |
| Volume |
139 |
Issue |
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Pages |
27-34 |
| Keywords |
Light pollution; Radiative transfer; Light scattering |
| Abstract |
Multi-wavelength imaging luminance photometry of sky glow provides a huge amount of information on light pollution. However, the understanding of the measured data involves the combination of different processes and data of radiation transfer, atmospheric physics and atmospheric constitution. State-of-the-art numerical radiation transfer models provide the possibility to define an inverse problem to obtain information on the emission intensity distribution of a city and perhaps the physical properties of the atmosphere. We provide numerical tests on the solvability and feasibility of such procedures. |
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0022-4073 |
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no |
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IDA @ john @ |
Serial |
179 |
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Sánchez de Miguel, A.; Zamorano, J.; Gómez Castaño, J.; Pascual, S. |
| Title |
Evolution of the energy consumed by street lighting in Spain estimated with DMSP-OLS data |
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Journal Article |
| Year |
2014 |
Publication |
Journal of Quantitative Spectroscopy and Radiative Transfer |
Abbreviated Journal |
Journal of Quantitative Spectroscopy and Radiative Transfer |
| Volume |
139 |
Issue |
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Pages |
109-117 |
| Keywords |
Light pollution; Power consumption; Remote sensing; Light pollution models; Spain |
| Abstract |
We present the results of the analysis of satellite imagery to study light pollution in Spain. Both calibrated and non-calibrated DMSP-OLS images were used. We describe the method to scale the non-calibrated DMSP-OLS images which allows us to use differential photometry techniques in order to study the evolution of the light pollution. Population data and DMSP-OLS satellite calibrated images for the year 2006 were compared to test the reliability of official statistics in public lighting consumption. We found a relationship between the population and the energy consumption which is valid for several regions. Finally the true evolution of the electricity consumption for street lighting in Spain from 1992 to 2010 was derived; it has been doubled in the last 18 years in most of the provinces. |
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| ISSN |
0022-4073 |
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no |
| Call Number |
IDA @ john @ |
Serial |
187 |
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| Author |
Duriscoe, D.M.; Luginbuhl, C.B.; Moore, C.W. |
| Title |
Measuring Night-Sky Brightness with a Wide-Field CCD Camera |
Type |
Journal Article |
| Year |
2007 |
Publication |
Publications of the Astronomical Society of the Pacific |
Abbreviated Journal |
Publ Astron Soc Pac |
| Volume |
119 |
Issue |
852 |
Pages |
192-213 |
| Keywords |
light pollution; light at night; skyglow; monitoring; measurement; CCD |
| Abstract |
We describe a system for rapidly measuring the brightness of the night sky using a mosaic of CCD images obtained with a low-cost automated system. The portable system produces millions of independent photometric measurements covering the entire sky, enabling the detailed characterization of natural sky conditions and light domes produced by cities. The measurements are calibrated using images of standard stars contained within the raw data, producing results closely tracking the Johnson V astronomical standard. The National Park Service has collected hundreds of data sets at numerous parks since 2001 and is using these data for the protection and monitoring of the night-sky visual resource. This system also allows comprehensive characterization of sky conditions at astronomical observatories. We explore photometric issues raised by the broadband measurement of the complex and variable night-sky spectrum, and potential indices of night-sky quality. |
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0004-6280 |
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no |
| Call Number |
IDA @ john @ |
Serial |
193 |
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