| Records |
| Author |
Sanders, D.; Frago, E.; Kehoe, R.; Patterson, C.; Gaston, K.J. |
| Title |
A meta-analysis of biological impacts of artificial light at night |
Type |
Journal Article |
| Year |
2020 |
Publication |
Nature Ecology & Evolution |
Abbreviated Journal |
Nat Ecol Evol |
| Volume |
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Issue |
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Pages |
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| Keywords |
Ecology; meta-analysis; biology |
| Abstract |
Natural light cycles are being eroded over large areas of the globe by the direct emissions and sky brightening that result from sources of artificial night-time light. This is predicted to affect wild organisms, particularly because of the central role that light regimes play in determining the timing of biological activity. Although many empirical studies have reported such effects, these have focused on particular species or local communities and have thus been unable to provide a general evaluation of the overall frequency and strength of these impacts. Using a new database of published studies, we show that exposure to artificial light at night induces strong responses for physiological measures, daily activity patterns and life history traits. We found particularly strong responses with regards to hormone levels, the onset of daily activity in diurnal species and life history traits, such as the number of offspring, predation, cognition and seafinding (in turtles). So far, few studies have focused on the impact of artificial light at night on ecosystem functions. The breadth and often strength of biological impacts we reveal highlight the need for outdoor artificial night-time lighting to be limited to the places and forms-such as timing, intensity and spectrum-where it is genuinely required by the people using it to minimize ecological impacts. |
| Address |
Environment and Sustainability Institute, University of Exeter, Penryn, UK.; k.j.gaston ( at ) exeter.ac.uk |
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| Publisher |
Nature |
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| Language |
English |
Summary Language |
English |
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Edition |
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| ISSN |
2397-334X |
ISBN |
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| Notes |
PMID:33139919 |
Approved |
no |
| Call Number |
IDA @ john @ |
Serial  |
3197 |
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| Author |
Nielsen, E.T. |
| Title |
Illumination at twilight |
Type |
Journal Article |
| Year |
1963 |
Publication |
Okios |
Abbreviated Journal |
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| Volume |
14 |
Issue |
1 |
Pages |
9-21 |
| Keywords |
Animals; Instrumentation; Methods |
| Abstract |
Introduction Poikilotherms with a nocturnal or crepuscular period of activity are usually guided by changes in illumination. The releasing factor may be a certain low level of illumination, or it might be a certain rate of change of intensity or a combination of both. ASCHOFF (1960) has shown that also animals with an internal clock mechanism of activation have to have the “clock” reset by actual changes in illumination. To all students of such animals it is essential to measure light intensity and its changes especially during the twilight period. |
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Approved |
no |
| Call Number |
GFZ @ kyba @ |
Serial |
3196 |
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| Author |
Sutovska, H.; Molcan, L.; Koprdova, R.; Piesova, M.; Mach, M.; Zeman, M. |
| Title |
Prenatal hypoxia increases blood pressure in male rat offspring and affects their response to artificial light at night |
Type |
Journal Article |
| Year |
2020 |
Publication |
Journal of Developmental Origins of Health and Disease |
Abbreviated Journal |
J Dev Orig Health Dis |
| Volume |
in press |
Issue |
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Pages |
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| Keywords |
Animals; Blood pressure; artificial light at night; heart rate; prenatal hypoxia |
| Abstract |
Prenatal hypoxia (PH) has negative consequences on the cardiovascular system in adulthood and can affect the responses to additional insults later in life. We explored the effects of PH imposed during embryonic day 20 (10.5% O2 for 12 h) on circadian rhythms of systolic blood pressure (BP) and heart rate (HR) in mature male rat offspring measured by telemetry. We evaluated: (1) stability of BP and HR changes after PH; (2) circadian variability of BP and HR after 2 and 5 weeks of exposure to artificial light at night (ALAN; 1-2 lx); and (3) response of BP and HR to norepinephrine. PH increased BP in the dark (134 +/- 2 mmHg vs. control 127 +/- 2 mmHg; p = 0.05) and marginally in the light (125 +/- 1 mmHg vs. control 120 +/- 2 mmHg) phase of the day but not HR. The effect of PH was highly repeatable between 21- and 27-week-old PH male offspring. Two weeks of ALAN decreased the circadian variability of HR (p < 0.05) and BP more in control than PH rats. After 5 weeks of ALAN, the circadian variability of HR and BP were damped compared to LD and did not differ between control and PH rats (p < 0.05). Responses of BP and HR to norepinephrine did not differ between control and PH rats. Hypoxia at the end of the embryonic period increases BP and affects the functioning of the cardiovascular system in mature male offspring. ALAN in adulthood decreased the circadian variability of cardiovascular parameters, more in control than PH rats. |
| Address |
Department of Animal Physiology and Ethology, Faculty of Natural Sciences, Comenius University, Bratislava, Slovakia |
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English |
Summary Language |
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Series Title |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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| ISSN |
2040-1744 |
ISBN |
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Medium |
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| Notes |
PMID:33109302 |
Approved |
no |
| Call Number |
GFZ @ kyba @ |
Serial |
3195 |
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| Author |
Adeniyi, M.J.; Agoreyo, F.O.; Olorunnisola, O.L.; Olaniyan, O.T.; Seriki, S.A.; Ozolua, P.O.; Odetola, A.A. |
| Title |
Photo-pollution disrupts reproductive homeostasis in female rats: The duration-dependent role of selenium administrations |
Type |
Journal Article |
| Year |
2020 |
Publication |
The Chinese Journal of Physiology |
Abbreviated Journal |
Chin J Physiol |
| Volume |
63 |
Issue |
5 |
Pages |
235-243 |
| Keywords |
Animals; Estrous cycle ratio; follicle-stimulating hormone; luteinizing hormone; photo-pollution; reproductive homeostasis; selenium |
| Abstract |
Although selenium is known to be essential for reproductive function, studies have indicated the adverse effect with its prolonged use. The present study investigated the duration-related effect of selenium administrations on reproductive hormones and estrous cycle indices in adult female Wistar rats exposed to a model of light pollution using altered photoperiod (AP). Ninety-six cyclic female Wistar rats displaying 4-5 days' estrous cycle length (ECL) and weighing 148-152 g were randomly divided into short and long experimental cohorts consisting of six groups each and spanning for 1 and 8 weeks, respectively. Each consisted of control, high selenium dose (HSE), low selenium dose (LSE), AP, AP + HSE, and AP + LSE. The rats were orally administered high dose (150 mug/kg) and low dose (100 mug/kg) of sodium selenite once per day. The estrous cycle indices were monitored. Plasma levels of follicle-stimulating hormone, luteinizing hormone (LH), estradiol (E), progesterone (P), prolactin, E/P ratio, and histology of ovary and uterine horn were evaluated. The statistical analysis was performed using Statistical Package for the Social Sciences. In AP rats, HSE and LSE caused no significant effect on LH, E, P, and E/P ratio, ECL, estrus interval (EI), and estrous cycle ratio (ECR). The effect of HSE and LSE on LH, E, P, E/P ratio, and ECL showed no duration-dependent increase, but there was a duration-dependent increase in EI and ECR at low dose. The study indicated that administration of HSE of selenium improved reproductive function in photo-pollution-exposed rats irrespective of the duration of treatment. |
| Address |
Department of Anatomy, Edo University Iyamho, Edo State, Nigeria |
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Place of Publication |
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Editor |
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| Language |
English |
Summary Language |
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Original Title |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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| ISSN |
0304-4920 |
ISBN |
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Conference |
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| Notes |
PMID:33109790 |
Approved |
no |
| Call Number |
GFZ @ kyba @ |
Serial |
3194 |
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| Author |
Chen, M.; Cai, H.; Yang, X.; Jin, C. |
| Title |
A novel classification regression method for gridded electric power consumption estimation in China |
Type |
Journal Article |
| Year |
2020 |
Publication |
Scientific Reports |
Abbreviated Journal |
Sci Rep |
| Volume |
10 |
Issue |
1 |
Pages |
18558 |
| Keywords |
Remote Sensing |
| Abstract |
Spatially explicit information on electric power consumption (EPC) is crucial for effective electricity allocation and utilization. Many studies have estimated fine-scale spatial EPC based on remotely sensed nighttime light (NTL). However, the spatial non-stationary relationship between EPC and NTL at prefectural level tends to be overlooked in existing literature. In this study, a classification regression method to estimate the gridded EPC in China based on imaging NTL via a Visible Infrared Imaging Radiometer Suite (VIIRS) was described. In addition, owing to some inherent omissions in the VIIRS NTL data, the study has employed the cubic Hermite interpolation to produce a more appropriate NTL dataset for estimation. The proposed method was compared with ordinary least squares (OLS) and geographically weighted regression (GWR) approaches. The results showed that our proposed method outperformed OLS and GWR in relative error (RE) and mean absolute percentage error (MAPE). The desirable results benefited mainly from a reasonable classification scheme that fully considered the spatial non-stationary relationship between EPC and NTL. Thus, the analysis suggested that the proposed classification regression method would enhance the accuracy of the gridded EPC estimation and provide a valuable reference predictive model for electricity consumption. |
| Address |
College of Urban and Environment, Liaoning Normal University, Dalian, China |
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| Language |
English |
Summary Language |
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Original Title |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
2045-2322 |
ISBN |
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| Area |
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Expedition |
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Conference |
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| Notes |
PMID:33122690; PMCID:PMC7596565 |
Approved |
no |
| Call Number |
GFZ @ kyba @ |
Serial |
3193 |
| Permanent link to this record |
