Does a flashing artificial light have more or conversely less impacts on animals than a continuous one? A systematic review

Nature Conservation, Journal Year: 2023, Volume and Issue: 54, P. 149 - 177

Published: Dec. 7, 2023

Background : Light pollution has been increasingly recognised as a threat to biodiversity, especially with the current expansion of public lighting. Although impacts light intensity, spectral composition and temporality are more often studied, another component light, its flicker frequency, largely overlooked. However, flashing could also have on animal behaviour physiology. Objective This systematic review aimed at identifying reported physiological behavioural animals when compared continuous light. Methods We followed standards recommended by Collaboration for Environmental Evidence (CEE) in order achieve comprehensive, transparent replicable review. Citations were primarily extracted from three literature databases then screened relevance successively their titles, abstracts full-texts. Retained studies finally critically appraised assess validity all relevant data extracted. Only which one included. Results At first, we found 19,730 citations. Screening critical appraisal resulted 32 accepted articles corresponding 54 observations—one observation species outcome. collated four main taxa: Aves (the most studied one), Actinopterygii, Insecta Mammalia well plankton. Conclusions The currently understudied varied between many specificities (e.g. wavelength, intensity). Therefore, no definitive conclusions be drawn now. Thus, research should pressingly carried out better mitigate Artificial Night (ALAN) wildlife. In meantime, would recommend precautionary principles applied: lighting limited not deemed essential frequencies managed prevent experiencing any potential harm

Language: Английский

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Co-designing safe and sustainable darkness for northern urban places

IOP Conference Series Earth and Environmental Science, Journal Year: 2024, Volume and Issue: 1320(1), P. 012004 - 012004

Published: March 1, 2024

Abstract The technological development, quantitative increase and qualitative design of urban lighting have succeeded in improving the safety comfort spaces. In this context, dark dimly lit places appear as undesirable, even dangerous. However, disadvantages overlighting are increasingly being identified. On other hand, darkness has well-being effects aesthetic values environments. Safe Sustainable Darkness project studies frameworks for dimmer lighting: how to find room lower levels darker places, respecting diverse use spaces experiences city residents. article, we present participatory process implementation safe sustainable darkness. expertise understanding two different groups is interest. Interviews various professionals organization reveal illuminated un-illuminated perceived from an administrative perspective. Inhabitants users space share their insight meanings, potential context existing future places. By combining research material interviews, crowdsourcing, workshops evaluated pilot installation, propose a co-design methodology create enjoyable

Language: Английский

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Theoretical Foundations of Designing for Darkness

IOP Conference Series Earth and Environmental Science, Journal Year: 2024, Volume and Issue: 1320(1), P. 012001 - 012001

Published: March 1, 2024

Abstract This paper sketches the theoretical foundations of designing for darkness. Drawing from (lighting) design theory, philosophy technology, and environmental ethics, it argues that we have an opportunity to re-examine meaning experiences darkness, exploring why how should protect or re-introduce darkness into urban nightscapes – not as a constraint, but constructive goal lighting. It is further positioned formative, prescriptive, framework: bounding guiding flexible process, able inform different strategies approaches. Framed in this way, three core principles are outlined serve moral aesthetic goals The first aspirational, situating ‘darkening cities’ type (ecological) restoration akin greening cities. requires seeing critical natural infrastructure can bring both material social benefits. second evaluative, specifying value-level requirements be fostered nightscapes. Lighting should, prima facie obligation, promote preserve values third principle experiential, create conditions positive engagement with In combination, they offer means specify requirement, well reflexive tool assess refine overarching theory

Language: Английский

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Exploring Urban Lighting Design Effect on Citizens’ Emotions through the Application of Kansei <span aria-describedby="tippy-44">Methodology

Published: May 17, 2024

Outdoor lighting design is a multidisciplinary topic that involves, among other aspects, design, energy savings, protection of nocturnal biodiversity and profitability, all which are important functional regulatory requirements. However, they do not necessarily consider user needs, make perception emotional response difficult parameters in the process. The studies carried out on its impact emotions have mainly been done indoors. objective this work to propose methodology evaluate illuminated urban space with purpose providing knowledge create emotionally efficient luminous spaces improve people&#039;s well-being. instrument used was survey (online questionnaires), based Kansei engineering, created incorporate variable product design. research participants from Peru, Spain, Germany. results collected reaction different types night-time presented, contributes better understanding needs activities regarding space. This intended help designers meet their expectations.

Language: Английский

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Polarised light pollution on river water surfaces caused by artificial light at night from illuminated bridges and surroundings

Journal of Limnology, Journal Year: 2024, Volume and Issue: 83

Published: May 22, 2024

Bridge illumination gave rise to night-time illuminated paths across aquatic systems. However, if bridge artificial light at night (ALAN) reach waterbodies, it can result in polarised pollution (PLP), which might alter the optical conditions of a river by and potentially interfere with moonlight polarisation signals reflected off water’s surface. It is phenomenon that detrimentally change behaviour organisms sensitive horizontally moonlight, navigational cue signal known be used flying water-seeking insects detect suitable habitats reproduce lay eggs. In this study, we quantify reflection ALAN-induced patterns surface near seven bridges crossing Spree Berlin. The photometric data shows induces PLP, reflects from when measured specific locations space considered as potential for polarotactic insects. findings suggest PLP pollutant illuminates areas. requires better research affect polarimetric navigation As extent reaches riverine systems habitats, effects on freshwaters need proper development sustainable lighting solutions aid preserving nightscapes.

Language: Английский

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