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Author Garrett, J. K., Donald, P. F., & Gaston, K. J.
Title Skyglow extends into the world’s Key Biodiversity Areas Type Journal Article
Year 2019 Publication Animal Conservation Abbreviated Journal
Volume Issue Pages
Keywords Skyglow; Conservation
Abstract The proportion of the Earth’s surface that experiences a naturally dark environment at night is rapidly declining with the introduction of artificial light. Biological impacts of this change have been documented from genes to ecosystems, and for a wide diversity of environments and organisms. The likely severity of these impacts depends heavily on the relationship between the distribution of artificial night-time lighting and biodiversity. Here, we carry out a global assessment of the overlap between areas of conservation priority and the most recent atlas of artificial skyglow. We show that of the world’s Key Biodiversity Areas (KBAs), less than a third have completely pristine night-time skies, about a half lie entirely under artificially bright skies and only about a fifth contain no area in which night-time skies are not polluted to the zenith. The extent of light pollution of KBAs varies by region, affecting the greatest proportion of KBAs in Europe and the Middle East. Statistical modelling revealed associations between light pollution within KBAs and associated levels of both gross domestic product and human population density. This suggests that these patterns will worsen with continued economic development and growth in the human population
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Call Number (down) IDA @ intern @ Serial 2309
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Author Peregrym, M., Kónya E. P., & Vasyliuk, O.
Title The impact of artificial light at night (ALAN) on the National Nature Parks, Biosphere and Naturе Reserves of the Steppe Zone and Crimean Mountains within Ukraine Type Journal Article
Year 2018 Publication Palaearctic Grasslands Abbreviated Journal
Volume Issue Pages
Keywords Skyglow; Conservation
Abstract Artificial light at night (ALAN) and sky glow are a recognized anthropogenic pressure, but the consequences of this pressure on protected areas within Ukraine are unclear. This research attempted to estimate the level of light pollution on the protected territories of the National Nature Parks (NNPs), Biosphere and Nature Reserves in the Steppe Zone and Crimea Mountains of Ukraine. Kmz layers of

these protected territories and the New World Atlas of Artificial Sky Brightness, through Google Earth Pro, were used to calculate the level of artificial sky brightness for 15 NNPs, three Biosphere Reserves and 10 Nature Reserves. The results show that even some of the most protected areas within the Steppe Zone and Crimean Mountains are impacted by ALAN. Of the studied protected areas 44.2% have a natural dark night sky, 40.1% have artificial brightness ranging between 8 and 16%, and the remainder (15.7%) are polluted with an artificial brightness greater than 16%. Areas with light pollution greater than 16% are often situated near big cities or industrial centers. It was noted that light pollution levels were not taken into account during the creation of any protected areas within Ukraine.
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Call Number (down) IDA @ intern @ Serial 2310
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Author Frank, T. M., Gabbert, W. C., Chaves-Campos, J., & LaVal, R. K.
Title Impact of artificial lights on foraging of insectivorous bats in a Costa Rican cloud forest Type Journal Article
Year 2019 Publication Journal of Tropical Ecology Abbreviated Journal
Volume 35 Issue 1 Pages 8-17
Keywords Animals
Abstract Determining the effects of light pollution on tropical bat communities is important for understanding community assembly rules in urban areas. Studies from temperate regions suggest that, among aerial insectivorous bats, fast-flying species that forage in the open are attracted to artificial lights, whereas slow-flying species that forage in cluttered environments avoid those lights. We measured aerial insectivore responses to light pollution in a tropical cloud forest to test this hypothesis. Bat echolocation was recorded at 20 pairs of light and dark sites in Monteverde, Costa Rica. Foraging activity was higher at artificially lighted sites than dark sites near the new moon, especially around blue-white fluorescent lighting. Most recorded bat species showed increased or unchanged activity in response to light, including some slow-flying and edge-foraging bats. This finding suggests that, contrary to the evaluated hypothesis, flight speed and foraging mode are not sufficient to determine bat responses to artificial lights in the tropics. Two bat species showed decreased activity at light sites, and a low species evenness was recorded around lights, particularly fluorescent lights, compared with dark sites. As in the temperate zone, light pollution in the tropics seems to concentrate certain bat species around human-inhabited areas, potentially shifting community structure.
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Call Number (down) IDA @ intern @ Serial 2311
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Author Lee, S., Matsumori, K., Nishimura, K., Nishimura, Y., Ikeda, Y., Eto, T., & Higuchi, S.
Title Melatonin suppression and sleepiness in children exposed to blue-enriched white LED lighting at night Type Journal Article
Year 2018 Publication Physiological Reports Abbreviated Journal
Volume 6 Issue 24 Pages
Keywords Human Health
Abstract Light-induced melatonin suppression in children is reported to be more sensitive to white light at night than that in adults; however, it is unclear whether it depends on spectral distribution of lighting. In this study, we investigated the effects of different color temperatures of LED lighting on children’s melatonin secretion during the night. Twenty-two healthy children (8.9  2.2 years old) and 20 adults (41.7  4.4 years old) participated in this

study. A between-subjects design with four combinations, including two age

groups (adults and children) and the two color temperature conditions

(3000 K and 6200 K), was used. The experiment was conducted for two consecutive nights. On the first night, saliva samples were collected every hour

under a dim light condition (<30 lx). On the second night, the participants

were exposed to either color temperature condition. Melatonin suppression in

children was greater than that in adults at both 3000 K and 6200 K condition.

The 6200 K condition resulted in greater melatonin suppression than did the

3000 K condition in children (P < 0.05) but not in adults. Subjective sleepiness in children exposed to 6200 K light was significantly lower than that in

children exposed to 3000 K light. In children, blue-enriched LED lighting has

a greater impact on melatonin suppression and it inhibits the increase in

sleepiness during night. Light with a low color temperature is recommended

at night, particularly for children’s sleep and circadian rhythm.
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Call Number (down) IDA @ intern @ Serial 2312
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Author Zhao, Z., Zhou, Y., Tan, G., & Li, J.
Title Research progress about the effect and prevention of blue light on eyes Type Journal Article
Year 2018 Publication International Journal of Ophthalmology Abbreviated Journal
Volume 11 Issue 12 Pages 1999-2003
Keywords Vision; Human Health; Review
Abstract In recent years, people have become increasingly attentive to light pollution influences on their eyes. In the visible spectrum, short-wave blue light with wavelength between 415 nm and 455 nm is closely related to eye light damage. This high energy blue light passes through the cornea and lens to the retina causing diseases such as dry eye, cataract, age-related macular degeneration, even stimulating the brain, inhibiting melatonin secretion, and enhancing adrenocortical hormone production, which will destroy the hormonal balance and directly affect sleep quality. Therefore, the effect of Blu-rays on ocular is becoming an important concern for the future. We describe blue light's effects on eye tissues, summarize the research on eye injury and its physical prevention and medical treatment.
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Call Number (down) IDA @ intern @ Serial 2313
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