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| Author | Nam, S.; Park, S.-E.; Shin, H.-C. | ||||
Title  |
Accessing the economic value of night view of bridge using contingent valuation method: the case of South Korea's Han-River bridge | Type | Journal Article | ||
| Year | 2015 | Publication | International Journal of Culture, Tourism and Hospitality Research | Abbreviated Journal | Int. J. of Culture, Tourism and Hospitality Res. |
| Volume | 9 | Issue | 3 | Pages | 360-370 |
| Keywords | Economics; South Korea; Korea; Han River Bridge; contingent valuation method; Viewshed analysis; Seoul | ||||
| Abstract | Purpose The purpose of this study is to estimate an individual’s probability of preservation the night view of Han-River Bridge at tax using the CVM; and to present the effects of 4Es on experience economy theory. Design/methodology/approach The on-site survey was conducted in the 11 district Han-river parks; Gwangnaru, Jamsil, Ttukseom, Jamwon, Banpo, Yeechon, Yeouido, Mangwon, Nanji, Ganseo and Yanghwa district including 24 bridge ssuch as Banpo, Olympic Bridge during the 8-9pm around the lighting and 9-10pm peak time of lighting. Findings Truncated mean WTP indicates that the economic value of the night view of Han-River Bridge is 49,575 won (about U.S. $50) per household, which implies the significance of the preservation value of the night view. Research limitations/implications This study sets a hypothetical market and there are limitations on hypothetical bias of the DC CVM. For the future study, a survey with a specific real payment vehicle in an attempt to reduce hypothetical bias can be a tool for the prevention of the overestimation. Practical implications Through the study, Seoul city has to invest aggressively on the night view landscape business of Han River bridge, which can become a landmark and lots of attraction effect of tourists. Since this study’s core aim was to justify the economic value of the night-view of the Han-River bridges, the estimated amount strongly supports the lighting business of the Han-River bridge. Originality/value The results of this research may help policy makers of Han-River to establish practical decision whether improving and preserving the Han-River’s night view lighting business are worth the value. |
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| Address | Kyunghee University, Seoul, South Korea | ||||
| Corporate Author | Thesis | ||||
| Publisher | Emerald Group | Place of Publication | Editor | ||
| Language | English | Summary Language | English | Original Title | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1750-6182 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | IDA @ john @ | Serial | 1216 | ||
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| Author | Pauwels, J.; Le Viol, I.; Azam, C.; Valet, N.; Julien, J.-F.; Bas, Y.; Lemarchand, C.; Sanchez de Miguel, A.; Kerbiriou, C. | ||||
| Title |
Accounting for artificial light impact on bat activity for a biodiversity-friendly urban planning | Type | Journal Article | ||
| Year | 2019 | Publication | Landscape and Urban Planning | Abbreviated Journal | Landscape and Urban Planning |
| Volume | 183 | Issue | Pages | 12-25 | |
| Keywords | Animals; Remote Sensing | ||||
| Abstract | Light pollution constitutes a major threat to biodiversity by decreasing habitat quality and landscape connectivity for nocturnal species. While there is an increasing consideration of biodiversity in urban management policies, the impact of artificial light is poorly accounted for. This is in a large part due to the lack of quantitative information and relevant guidelines to limit its negative effects. Here we compared the potential of two sources of information on light pollution, remote sensing (nocturnal picture taken from the International Space Station ISS) and ground-based (location of streetlights) data, to measure its impact on bats. Our aims were to (i) evaluate how light pollution affected Pipistrellus pipistrellus activity at the city scale, (ii) determine which source of information was the most relevant to measure light pollution’s effect and (iii) define a reproducible methodology applicable in land management to account for biodiversity in lighting planning. We used citizen science data to model the activity of P. pipistrellus, a species considered light tolerant, within three cities of France while accounting for artificial light through a variable based on either source of information. We showed that at the city scale, P. pipistrellus activity is negatively impacted by light pollution irrespective of the light variable used. This detrimental effect was better described by variables based on ISS pictures than on streetlights location. Our methodology can be easily reproduced and used in urban planning to help take the impact of light pollution into consideration and promote a biodiversity-friendly management of artificial light. | ||||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 0169-2046 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | GFZ @ kyba @ | Serial | 2118 | ||
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| Author | Eriksen, A.; Wabakken, P. | ||||
| Title |
Activity patterns at the Arctic Circle: nocturnal eagle owls and interspecific interactions during continuous midsummer daylight | Type | Journal Article | ||
| Year | 2018 | Publication | Journal of Avian Biology | Abbreviated Journal | J Avian Biol |
| Volume | 49 | Issue | 7 | Pages | e01781 |
| Keywords | Animals | ||||
| Abstract | Circadian rhythms result from adaptations to biotic and abiotic environmental conditions that cycle through the day, such as light, temperature, or temporal overlap between interacting species. At high latitudes, close to or beyond the polar circles, uninterrupted midsummer daylight may pose a challenge to the circadian rhythms of otherwise nocturnal species, such as eagle owls Bubo bubo. By non‐invasive field methods, we studied eagle owl activity in light of their interactions with their main prey the water vole Arvicola amphibius, and their competitor the white‐tailed eagle Haliaeetus albicilla during continuous midsummer daylight on open, treeless islands in coastal Northern Norway. We evaluated circadian rhythms, temporal overlap, exposure, and spatial distribution. The owls maintained a nocturnal activity pattern, possibly because slightly dimmer light around midnight offered favourable hunting conditions. The eagles were active throughout the 24‐hour period as opposed to the strictly diurnal rhythm reported elsewhere, thus increasing temporal overlap and the potential for interference competition between the two avian predators. This may indicate an asymmetry, with the owls facing the highest cost of interference competition. The presence of eagles combined with constant daylight in this open landscape may make the owls vulnerable to interspecific aggression, and contrary to the available literature, eagle owls rarely exposed themselves visually during territorial calls, possibly to avoid detection by eagles. We found indications of spatial segregation between owls and eagles reflecting differences in main prey, possibly in combination with habitat‐mediated avoidance. Eagle owl vocal activity peaked in the evening before a nocturnal peak in visual observations, when owls were active hunting, consistent with the hypothesis of a dusk chorus in nocturnal bird species. The owls may have had to trade‐off between calling and foraging during the few hours around midnight when slightly dimmer light reduced the detection risk while also providing better hunting conditions. | ||||
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| Language | Summary Language | Original Title | |||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 0908-8857 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | GFZ @ kyba @ | Serial | 1881 | ||
| Permanent link to this record | |||||
| Author | Souman, J.L.; Tinga, A.M.; Te Pas, S.F.; van Ee, R.; Vlaskamp, B.N.S. | ||||
| Title |
Acute alerting effects of light: a systematic literature review | Type | Journal Article | ||
| Year | 2018 | Publication | Behavioural Brain Research | Abbreviated Journal | Behav Brain Res |
| Volume | 337 | Issue | Pages | 228-239 | |
| Keywords | Human Health | ||||
| Abstract | Periodic, well timed exposure to light is important for our health and wellbeing. Light, in particular in the blue part of the spectrum, is thought to affect alertness both indirectly, by modifying circadian rhythms, and directly, giving rise to acute effects. We performed a systematic review of empirical studies on direct, acute effects of light on alertness to evaluate the reliability of these effects and to assess to what extent they depend on other factors, such as time of day, exposure duration and sleep pressure. In total, we identified 74 studies in which either light intensity, spectral distribution, or both were manipulated, and the effects on behavioral measures of alertness were evaluated, either subjectively or measured in performance tasks. The results show that increasing the intensity or the color temperature of polychromatic white light in general has been found to increase subjective ratings of alertness, though a substantial proportion of these studies failed to find significant effects. There is little evidence in the literature that these subjective alerting effects of light also translate into improvements on performance measures of alertness. For monochromatic or narrowband light exposure, some studies have shown improvement in reaction time tasks with exposure to blue light, but generally this was not accompanied by changes in subjective alertness. Thus, the alerting effects of light are far less clear than often suggested. We suggest that in future studies more attention should be paid to other factors that may influence the effects of light, such as chronotype, circadian phase, homeostatic state and prior light history. | ||||
| Address | Philips Research (Department Brain, Behavior & Cognition), Eindhoven, The Netherlands | ||||
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| Language | English | Summary Language | Original Title | ||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 0166-4328 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | PMID:28912014 | Approved | no | ||
| Call Number | LoNNe @ kyba @ | Serial | 1727 | ||
| Permanent link to this record | |||||
| Author | Chellappa, S.L.; Steiner, R.; Oelhafen, P.; Lang, D.; Gotz, T.; Krebs, J.; Cajochen, C. | ||||
| Title |
Acute exposure to evening blue-enriched light impacts on human sleep | Type | Journal Article | ||
| Year | 2013 | Publication | Journal of Sleep Research | Abbreviated Journal | J Sleep Res |
| Volume | 22 | Issue | 5 | Pages | 573-580 |
| Keywords | Human Health | ||||
| Abstract | Light in the short wavelength range (blue light: 446-483 nm) elicits direct effects on human melatonin secretion, alertness and cognitive performance via non-image-forming photoreceptors. However, the impact of blue-enriched polychromatic light on human sleep architecture and sleep electroencephalographic activity remains fairly unknown. In this study we investigated sleep structure and sleep electroencephalographic characteristics of 30 healthy young participants (16 men, 14 women; age range 20-31 years) following 2 h of evening light exposure to polychromatic light at 6500 K, 2500 K and 3000 K. Sleep structure across the first three non-rapid eye movement non-rapid eye movement – rapid eye movement sleep cycles did not differ significantly with respect to the light conditions. All-night non-rapid eye movement sleep electroencephalographic power density indicated that exposure to light at 6500 K resulted in a tendency for less frontal non-rapid eye movement electroencephalographic power density, compared to light at 2500 K and 3000 K. The dynamics of non-rapid eye movement electroencephalographic slow wave activity (2.0-4.0 Hz), a functional index of homeostatic sleep pressure, were such that slow wave activity was reduced significantly during the first sleep cycle after light at 6500 K compared to light at 2500 K and 3000 K, particularly in the frontal derivation. Our data suggest that exposure to blue-enriched polychromatic light at relatively low room light levels impacts upon homeostatic sleep regulation, as indexed by reduction in frontal slow wave activity during the first non-rapid eye movement episode. | ||||
| Address | Centre for Chronobiology, Psychiatric Hospital of the University of Basel, Basel, Switzerland; Cyclotron Research Center, University of Liege, Liege, Belgium | ||||
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| Publisher | Place of Publication | Editor | |||
| Language | English | Summary Language | Original Title | ||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 0962-1105 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | PMID:23509952 | Approved | no | ||
| Call Number | GFZ @ kyba @ | Serial | 2201 | ||
| Permanent link to this record | |||||