| Records |
| Author |
Spoelstra, K.; Ramakers, J.J.C.; van Dis, N.E.; Visser, M.E. |
| Title |
No effect of artificial light of different colors on commuting Daubenton's bats (Myotis daubentonii) in a choice experiment |
Type |
Journal Article |
| Year |
2018 |
Publication |
Journal of Experimental Zoology. Part A, Ecological and Integrative Physiology |
Abbreviated Journal |
J Exp Zool A Ecol Integr Physiol |
| Volume |
329 |
Issue |
8-9 |
Pages |
506-510 |
Keywords  |
Animals |
| Abstract |
Progressive illumination at night poses an increasing threat to species worldwide. Light at night is particularly problematic for bats as most species are nocturnal and often cross relatively large distances when commuting between roosts and foraging grounds. Earlier studies have shown that illumination of linear structures in the landscape disturbs commuting bats, and that the response of bats to light may strongly depend on the light spectrum. Here, we studied the impact of white, green, and red light on commuting Daubenton's bats (Myotis daubentonii). We used a unique location where commuting bats cross a road by flying through two identical, parallel culverts underneath. We illuminated the culverts with white, red, and green light, with an intensity of 5 lux at the water surface. Bats had to choose between the two culverts, each with a different lighting condition every night. We presented all paired combinations of white, green, and red light and dark control in a factorial design. Contrary to our expectations, the number of bat passes through a culvert was unaffected by the presence of light. Furthermore, bats did not show any preference for light color. These results show that the response of commuting Daubenton's bats to different colors of light at night with a realistic intensity may be limited when passing through culverts. |
| Address |
Department of Animal Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, The Netherlands |
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English |
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| ISSN |
2471-5638 |
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| Notes |
PMID:29808964 |
Approved |
no |
| Call Number |
GFZ @ kyba @ |
Serial |
1927 |
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| Author |
Kernbach, M.E.; Hall, R.J.; Burkett-Cadena, N.; Unnasch, T.R.; Martin, L.B. |
| Title |
Dim light at night: physiological effects and ecological consequences for infectious disease |
Type |
Journal Article |
| Year |
2018 |
Publication |
Integrative and Comparative Biology |
Abbreviated Journal |
Integr Comp Biol |
| Volume |
58 |
Issue |
5 |
Pages |
995-1007 |
| Keywords |
Animals |
| Abstract |
Light pollution has emerged as a pervasive component of land development over the past century. Several detrimental impacts of this anthropogenic influence have been identified in night shift workers, laboratory rodents, and a plethora of wildlife species. Circadian, or daily, patterns are interrupted by the presence of light at night and have the capacity to alter rhythmic physiological or behavioral characteristics. Indeed, biorhythm disruption can lead to metabolic, reproductive, and immunological dysfunction depending on the intensity, timing, duration and wavelength of light exposure. Light pollution, in many forms and by many pathways, is thus apt to affect the nature of host-pathogen interactions. However, no research has yet investigated this possibility. The goal of this manuscript is to outline how dim light at night (dLAN), a relevant and common form of light pollution, may affect disease dynamics by interrupting circadian rhythms and regulation of immune responses as well as opportunities for host-parasite interactions and subsequent transmission risk including spillover into humans. We close by proposing some promising interventions including alternative lighting methods or vector control efforts. |
| Address |
Department of Global Health, University of South Florida, Tampa FL |
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English |
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Edition |
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| ISSN |
1540-7063 |
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| Notes |
PMID:29939262 |
Approved |
no |
| Call Number |
GFZ @ kyba @ |
Serial |
1946 |
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| Author |
de Jong, M.; Lamers, K.P.; Eugster, M.; Ouyang, J.Q.; Da Silva, A.; Mateman, A.C.; van Grunsven, R.H.A.; Visser, M.E.; Spoelstra, K. |
| Title |
Effects of experimental light at night on extra-pair paternity in a songbird |
Type |
Journal Article |
| Year |
2018 |
Publication |
Journal of Experimental Zoology. Part A, Ecological and Integrative Physiology |
Abbreviated Journal |
J Exp Zool A Ecol Integr Physiol |
| Volume |
329 |
Issue |
8-9 |
Pages |
441-448 |
| Keywords |
animals |
| Abstract |
Light pollution is increasing worldwide and significantly affects animal behavior. In birds, these effects include advancement of morning activity and onset of dawn song, which may affect extra-pair paternity. Advanced dawn song of males may stimulate females to engage in extra-pair copulations, and the earlier activity onset may affect the males' mate guarding behavior. Earlier work showed an effect of light at night on extra-pair behavior, but this was in an area with other anthropogenic disturbances. Here, we present a two-year experimental study on effects of light at night on extra-pair paternity of great tits (Parus major). Previously dark natural areas were illuminated with white, red, and green LED lamps and compared to a dark control. In 2014, the proportion of extra-pair young in broods increased with distance to the red and white lamps (i.e., at lower light intensities), but decreased with distance to the poles in the dark control. In 2013, we found no effects on the proportion of extra-pair young. The total number of offspring sired by a male was unaffected by artificial light at night in both years, suggesting that potential changes in female fidelity in pairs breeding close to white and red light did not translate into fitness benefits for the males of these pairs. Artificial light at night might disrupt the natural patterns of extra-pair paternity, possibly negates potential benefits of extra-pair copulations and thus could alter sexual selection processes in wild birds. |
| Address |
Department of Animal Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, The Netherlands |
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English |
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| ISSN |
2471-5638 |
ISBN |
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| Notes |
PMID:29952126 |
Approved |
no |
| Call Number |
GFZ @ kyba @ |
Serial |
1953 |
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| Author |
Emmer, K.M.; Russart, K.L.G.; Walker, W.H.; Nelson, R.J.; DeVries, A.C. |
| Title |
Effects of light at night on laboratory animals and research outcomes |
Type |
Journal Article |
| Year |
2018 |
Publication |
Behavioral Neuroscience |
Abbreviated Journal |
Behav Neurosci |
| Volume |
132 |
Issue |
4 |
Pages |
302-314 |
| Keywords |
Animals |
| Abstract |
Light has substantial influences on the physiology and behavior of most laboratory animals. As such, lighting conditions within animal rooms are potentially significant and often underappreciated variables within experiments. Disruption of the light/dark cycle, primarily by exposing animals to light at night (LAN), disturbs biological rhythms and has widespread physiological consequences because of mechanisms such as melatonin suppression, sympathetic stimulation, and altered circadian clock gene expression. Thus, attention to the lighting environment of laboratory animals and maintaining consistency of a light/dark cycle is imperative for study reproducibility. Light intensity, as well as wavelength, photoperiod, and timing, are all important variables. Although modern rodent facilities are designed to facilitate appropriate light cycling, there are simple ways to modify rooms to prevent extraneous light exposure during the dark period. Attention to lighting conditions of laboratory animals by both researchers and research care staff ensures best practices for maintaining animal welfare, as well as reproducibility of research results. (PsycINFO Database Record |
| Address |
Rockefeller Neuroscience Institute, West Virginia University |
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English |
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Edition |
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| ISSN |
0735-7044 |
ISBN |
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| Notes |
PMID:29952608 |
Approved |
no |
| Call Number |
GFZ @ kyba @ |
Serial |
1957 |
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| Author |
Maroni, M.J.; Capri, K.M.; Cushman, A.V.; Monteiro De Pina, I.K.; Chasse, M.H.; Seggio, J.A. |
| Title |
Constant light alters serum hormone levels related to thyroid function in male CD-1 mice |
Type |
Journal Article |
| Year |
2018 |
Publication |
Chronobiology International |
Abbreviated Journal |
Chronobiol Int |
| Volume |
35 |
Issue |
10 |
Pages |
1456-1463 |
| Keywords |
Animals |
| Abstract |
Disruptions to the circadian rhythm can lead to altered metabolism. Modification of thyroid function may be a reason why circadian misalignment may contribute to future metabolic disorders. We investigated whether circadian disruption through constant light (LL) can lead to variations in hormone levels associated with thyroid function. Mice were exposed to LL or a 12:12 Light:Dark (LD) cycle for 6 weeks; then glucose tolerance and thyroid hormone levels were measured at ZT 6 and ZT 18. There was day/night variation in glucose tolerance, but LL had no effect. LL reduced TSH, increased fT4, and abolished day/night variation in fT3 and leptin. These findings illustrate that LL alters thyroid-related hormones, providing evidence of a link between circadian disruption and thyroid function. |
| Address |
a Department of Biological Sciences , Bridgewater State University , Bridgewater , MA , USA |
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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 |
0742-0528 |
ISBN |
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| Notes |
PMID:29953263 |
Approved |
no |
| Call Number |
GFZ @ kyba @ |
Serial |
1958 |
| Permanent link to this record |
