| Records |
| Author |
Bará, S.; Espey, B.; Falchi, F.; Kyba, C.C.M.; Nievas, M., Pescatori, P., Ribas, S.J., Sánchez de Miguel, A.; Staubmann, P., Tapia Ayuga, C.; Wuchterl, G., Zamorano, J. |
| Title |
Report of the 2014 LoNNe Intercomparison Campaign |
Type |
Report |
| Year |
2015 |
Publication |
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Abbreviated Journal |
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| Volume |
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Issue |
32989 |
Pages |
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| Keywords |
skyglow |
| Abstract |
The 2014 LoNNe (Loss of the Night Network) intercomparison campaign is the second of four campaigns planned during EU COST Action ES1204. The goal of these campaigns is to understand systematic uncertainty inherent in observations of skyglow (light pollution). An innovation of this year’s campaign was to take measurements with many of the nstruments at two sites: an urban location and a location far from artificial lights. This report summarizes the meeting, and also provides three recommendations for obtaining and analyzing handheld SQM observations. |
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| Publisher |
Universidad Complutense |
Place of Publication |
Madrid |
Editor |
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| Language |
English |
Summary Language |
English |
Original Title |
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| Series Editor |
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Series Title |
e-prints Complutense |
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Conference |
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| Notes |
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Approved |
no |
| Call Number |
LoNNe @ kyba @ |
Serial |
1254 |
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| Author |
Hall, A.L.; Davies, H.W.; Koehoorn, M. |
| Title |
Personal light-at-night exposures and components of variability in two common shift work industries: uses and implications for future research |
Type |
Journal Article |
| Year |
2018 |
Publication |
Scandinavian Journal of Work, Environment & Health |
Abbreviated Journal |
Scand J Work Environ Health |
| Volume |
44 |
Issue |
1 |
Pages |
80-87 |
| Keywords |
Human Health |
| Abstract |
Objectives Shift workers' increased risk of various adverse health outcomes has been linked to light-at-night (LAN) exposure, but few studies have measured LAN exposure in workplaces. To inform future research methods, this study aimed to (i) measure shift workers' exposures to LAN across industries, occupations, and work environments and (ii) assess components of variance across different exposure groupings and metrics. Methods Between October 2015 and March 2016, 152 personal full-shift measurements were collected from 102 night shift workers in emergency health services (paramedics, dispatchers) and healthcare industries (nurses, care aides, security guards, unit clerks, and laboratory, pharmacy, and respiratory therapy staff) in the province of British Columbia, Canada. Descriptive and variance component analyses were conducted for the 23:00-05:00 period to characterize exposures using multiple metrics of potential biological relevance (median lux, 90 thpercentile lux, sum of minutes >/=30 lux, and sum of minutes >/=100 lux). Results Average exposure levels were highest in the healthcare industry. By occupation, laboratory workers and care aides displayed the highest and emergency dispatch officers displayed the lowest levels for all LAN exposure metrics. Between-group variance was large relative to within-group variance for all exposure groupings and metrics, and increased as grouping specificity increased (moving from industry to occupation). Conclusions Results from this study suggest that high-level grouping schemes may provide a simple yet effective way of characterizing individual LAN exposures in epidemiological studies of shift work. Ongoing measurement of LAN exposures and assessment of exposure variability is needed in future studies of shift workers as a means to increase sampling efficiency, reduce measurement error, and maximize researchers' ability to detect relationships where they exist. |
| Address |
School of Population and Public Health, University of British Columbia, 2206 East Mall, Vancouver, V6T1Z3, Canada. amyhall@mail.ubc.ca |
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English |
Summary Language |
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Edition |
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| ISSN |
0355-3140 |
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| Notes |
PMID:28951937 |
Approved |
no |
| Call Number |
LoNNe @ kyba @ |
Serial |
1754 |
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| Author |
Brüning A., Hölker, F., Franke, S., Preuer, T., Kloas, W. |
| Title |
Impact of different colours of artificial light at night on melatonin rhythm and gene expression of gonadotropins in European perch |
Type |
Journal Article |
| Year |
2016 |
Publication |
Science of The Total Environment |
Abbreviated Journal |
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| Volume |
543 |
Issue |
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Pages |
214-222 |
| Keywords |
Animals |
| Abstract |
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no |
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LoNNe @ schroer @ |
Serial |
1294 |
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| Author |
Mège, P.; Ödeen, A.; Théry, M.; Picard, D.; Secondi, J. |
| Title |
Partial Opsin Sequences Suggest UV-Sensitive Vision is Widespread in Caudata |
Type |
Journal Article |
| Year |
2015 |
Publication |
Evolutionary Biology |
Abbreviated Journal |
Evol. Biol. |
| Volume |
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Issue |
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Pages |
1-10 |
| Keywords |
Animals; Caudata; amphibians; ultraviolet; ultraviolet vision; opsin; photobiology; SWS1; Paralog gene; Tuning site; Nocturnal species; Sliding window; Ka/Ks |
| Abstract |
Ultraviolet (UV) vision exists in several animal groups. Intuitively, one would expect this trait to be favoured in species living in bright environments, where UV light is the most present. However, UV sensitivity, as deduced from sequences of UV photoreceptors and/or ocular media transmittance, is also present in nocturnal species, raising questions about the selective pressure maintaining this perceptual ability. Amphibians are among the most nocturnal vertebrates but their visual ecology remains poorly understood relative to other groups. Perhaps because many of these species breed in environments that filter out a large part of UV radiation, physiological and behavioural studies of UV sensitivity in this group are scarce. We investigated the extent of UV vision in Caudata, the order of amphibians with the most nocturnal habits. We could recover sequences of the UV sensitive SWS1 opsin in 40 out of 58 species, belonging to 6 families. In all of these species, the evidence suggests the presence of functional SWS1 opsins under purifying selection, potentially allowing UV vision. Interestingly, most species whose opsin genes failed to amplify exhibited particular ecological features that could drive the loss of UV vision. This likely wide distribution of functional UV photoreceptors in Caudata sheds a new light on the visual ecology of amphibians and questions the function of UV vision in nocturnal animal species. |
| Address |
GECCO, Université d’Angers, 2 Bd Lavoisier, 49045, Angers, France; pascal.mege(at)gmail.com |
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| Publisher |
Springer |
Place of Publication |
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| Language |
English |
Summary Language |
English |
Original Title |
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Series Issue |
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Edition |
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0071-3260 |
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no |
| Call Number |
IDA @ john @ |
Serial |
1299 |
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| Author |
Silva, A.D.; Diez‐Méndez, D.; Kempenaers, B. |
| Title |
Effects of experimental night lighting on the daily timing of winter foraging in common European songbirds |
Type |
Journal Article |
| Year |
2017 |
Publication |
Journal of Avian Biology |
Abbreviated Journal |
J Avian Biol |
| Volume |
48 |
Issue |
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Pages |
862-871 |
| Keywords |
Animals |
| Abstract |
The ecological effects of light pollution are becoming better understood, especially in birds. Recent studies have shown that several bird species can use street lighting to extend activity into the night during the breeding season. However, most of these studies are correlational and little is known about the effects of artificial night lighting on the timing of activities outside the breeding season. During winter, low temperatures and short days may limit foraging opportunities and can negatively affect survival of resident birds. However, night lighting may allow them to expand the time niche available for foraging. Here, we report on a study where we repeatedly manipulated the amount of night lighting during early winter at automated feeding stations in a natural forest. We used video-recordings at the feeders to determine the time of the first (at dawn) and last (at dusk) foraging visits for six songbird species. We predicted that all species, and in particular the naturally early-foraging species, would advance their daily onset of foraging during the mornings with night lighting, but would show minimal or no delays in their daily cessation of foraging during the lighted evenings. We found that two early-foraging species, the blue tit and the great tit, started foraging earlier during the experimentally lighted mornings. However, in great tits, this effect was weak and restricted to nights with inclement weather. The light treatment did not have any effect on the start of foraging in the willow/marsh tit, the nuthatch, the European jay, and the blackbird. Artificial night lighting did not cause later foraging at dusk in any of the six species. Overall, our results suggest that artificial light during winter has only small effects on timing of foraging. We discuss these findings and the importance of temperature and winter weather in shaping the observed foraging patterns. |
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Edition |
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| ISSN |
0908-8857 |
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| Notes |
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Approved |
no |
| Call Number |
LoNNe @ kyba @ |
Serial |
1627 |
| Permanent link to this record |
