|   | 
Details
   web
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 Issue Pages
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
Corporate Author Thesis
Publisher Nature Place of Publication Editor
Language English Summary Language English Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2397-334X ISBN Medium
Area Expedition Conference
Notes PMID:33139919 Approved no
Call Number IDA @ john @ Serial (down) 3197
Permanent link to this record
 

 
Author Nielsen, E.T.
Title Illumination at twilight Type Journal Article
Year 1963 Publication Okios Abbreviated Journal
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.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number GFZ @ kyba @ Serial (down) 3196
Permanent link to this record
 

 
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 Pages
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
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 2040-1744 ISBN Medium
Area Expedition Conference
Notes PMID:33109302 Approved no
Call Number GFZ @ kyba @ Serial (down) 3195
Permanent link to this record
 

 
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
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 0304-4920 ISBN Medium
Area Expedition Conference
Notes PMID:33109790 Approved no
Call Number GFZ @ kyba @ Serial (down) 3194
Permanent link to this record
 

 
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
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 2045-2322 ISBN Medium
Area Expedition Conference
Notes PMID:33122690; PMCID:PMC7596565 Approved no
Call Number GFZ @ kyba @ Serial (down) 3193
Permanent link to this record