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Author (up) Altermatt, F.; Ebert, D.
Title Reduced flight-to-light behaviour of moth populations exposed to long-term urban light pollution Type Journal Article
Year 2016 Publication Biology Letters Abbreviated Journal Biol Lett
Volume 12 Issue 4 Pages 20160111
Keywords Lepidoptera; Yponomeuta; adaptation; environmental change; natural selection
Abstract The globally increasing light pollution is a well-recognized threat to ecosystems, with negative effects on human, animal and plant wellbeing. The most well-known and widely documented consequence of light pollution is the generally fatal attraction of nocturnal insects to artificial light sources. However, the evolutionary consequences are unknown. Here we report that moth populations from urban areas with high, globally relevant levels of light pollution over several decades show a significantly reduced flight-to-light behaviour compared with populations of the same species from pristine dark-sky habitats. Using a common garden setting, we reared moths from 10 different populations from early-instar larvae and experimentally compared their flight-to-light behaviour under standardized conditions. Moths from urban populations had a significant reduction in the flight-to-light behaviour compared with pristine populations. The reduced attraction to light sources of 'city moths' may directly increase these individuals' survival and reproduction. We anticipate that it comes with a reduced mobility, which negatively affects foraging as well as colonization ability. As nocturnal insects are of eminent significance as pollinators and the primary food source of many vertebrates, an evolutionary change of the flight-to-light behaviour thereby potentially cascades across species interaction networks.
Address Department of Environmental Sciences, Zoology, University of Basel, Vesalgasse 1, 4051 Basel, Switzerland
Corporate Author Thesis
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Language English Summary Language Original Title
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Series Volume Series Issue Edition
ISSN 1744-9561 ISBN Medium
Area Expedition Conference
Notes PMID:27072407 Approved no
Call Number LoNNe @ kyba @ Serial 1420
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Author (up) Alves, T.
Title Art, Light and Landscape New Agendas for Urban Development Type Journal Article
Year 2007 Publication European Planning Studies Abbreviated Journal European Planning Studies
Volume 15 Issue 9 Pages 1247-1260
Keywords Society
Abstract
Address
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Language Summary Language Original Title
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Series Volume Series Issue Edition
ISSN 0965-4313 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number LoNNe @ kagoburian @ Serial 985
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Author (up) Alves, T.; Almeida, D.
Title Planning the night – light as a central issue Type Journal Article
Year 2009 Publication In The Regional Studies Association. Regional Studies Association Annual Conference 2009: Understanding and Shaping Regions: Spatial, Social and Economic Futures. Seaford: The Regional Studies Association Abbreviated Journal
Volume Issue Pages 18
Keywords Society
Abstract
Address
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Area Expedition Conference
Notes Approved no
Call Number LoNNe @ kagoburian @ Serial 986
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Author (up) Alves-Simoes, M.; Coleman, G.; Canal, M.
Title Effects of type of light on mouse circadian behaviour and stress levels Type Journal Article
Year 2015 Publication Laboratory Animals Abbreviated Journal Lab. Anim.
Volume 50 Issue 1 Pages 21-29
Keywords Animals; mouse; albino; pigmented; fluorescent light; LED light; Circadian Rhythm
Abstract Light is the principal synchronizing environmental factor for the biological clock. Light quantity (intensity), and light quality (type of light source) can have different effects. The aim of this study was to determine the effects of the type of light experienced from the time of birth on mouse growth, circadian behaviour and stress levels. We raised pigmented and albino mice under 24 h light–dark cycles of either fluorescent or white light-emitting diode (LED) light source during the suckling stage, and the animals were then exposed to various light environments after weaning and their growth rate, locomotor activity and plasma corticosterone concentration were measured. We found that the type of light the animals were exposed to did not affect the animals’ growth rates or stress levels. However, we observed significant effects on the expression of the locomotor activity rhythm under low contrast light–dark cycles in pigmented mice, and under constant light in both albino and pigmented mice. These results highlight the importance of environmental light quality (light source) on circadian behavioural rhythms, and the need for close monitoring of light environments in animal facilities.
Address University of Manchester, Faculty of Life Sciences, AV Hill Building, Oxford Road, Manchester M13 9PT, UK. Email: maria.canal{at}manchester.ac.uk
Corporate Author Thesis
Publisher SAGE Place of Publication Editor
Language English Summary Language English Original Title
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ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 1177
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Author (up) Alzahrani, H.S.; Khuu, S.K.; Roy, M.
Title Modelling the effect of commercially available blue-blocking lenses on visual and non-visual functions Type Journal Article
Year 2019 Publication Clinical & Experimental Optometry Abbreviated Journal Clin Exp Optom
Volume in press Issue Pages cxo.12959
Keywords Human Health; blue-blocking lenses; non-visual functions; transmittance; visual functions
Abstract BACKGROUND: Blue-blocking lenses (BBLs) are marketed as providing retinal protection from acute and cumulative exposure to blue light over time. The selective reduction in visible wavelengths transmitted through BBLs is known to influence the photosensitivity of retinal photoreceptors, which affects both visual and non-visual functions. This study measured the spectral transmittance of BBLs and evaluated their effect on blue perception, scotopic vision, circadian rhythm, and protection from photochemical retinal damage. METHODS: Seven different types of BBLs from six manufacturers and untinted control lenses with three different powers (+2.00 D, -2.00 D and Plano) were evaluated. The whiteness index of BBLs used in this study was calculated using Commission International de l'Eclairage (CIE) Standard Illuminates D65, and CIE 1964 Standard with a 2 degrees Observer. The protective qualities of BBLs and their effect on blue perception, scotopic vision, and circadian rhythm were evaluated based on their spectral transmittance, which was measured with a Cary 5,000 UV-Vis-NIR spectrophotometer. RESULTS: BBLs were found to reduce blue light (400-500 nm) by 6-43 per cent, providing significant protection from photochemical retinal damage compared to control lenses (p </= 0.05). All BBLs were capable of reducing the perception of blue colours, scotopic sensitivities and circadian sensitivities by 5-36 per cent, 5-24 per cent, and 4-27 per cent, respectively depending on the brand and power of the lens. CONCLUSION: BBLs can provide some protection to the human eye from photochemical retinal damage by reducing a portion of blue light that may affect visual and non-visual performances, such as those critical to scotopic vision, blue perception, and circadian rhythm.
Address School of Optometry and Vision Science, The University of New South Wales, Sydney, Australia
Corporate Author Thesis
Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0816-4622 ISBN Medium
Area Expedition Conference
Notes PMID:31441122 Approved no
Call Number GFZ @ kyba @ Serial 2654
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