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Author Kurvers, R.H.J.M.; Hölker, F. url  doi
openurl 
  Title Bright nights and social interactions: a neglected issue Type Journal Article
  Year 2014 Publication Behavioral Ecology Abbreviated Journal Behav. Ecol.  
  Volume 26 Issue 2 Pages 334-339  
  Keywords Ecology; group dynamics; light at night; light pollution; social consequence; social interactions; social synchrony  
  Abstract Artificial light at night is an increasing threat for ecological processes. Previous work has highlighted the effects of nighttime light on individuals and on higher levels of biological organization, such as community ecology and ecosystem functioning. Here, we focus on the effects of artificial light at night on social interactions and group dynamics. We discuss 4 main ways of how light pollution is expected to alter social interactions and group dynamics. First, light at night can alter the activity patterns of individuals and this is predicted to affect the social network structure of populations, which in turn affects the transfer of information and diseases. Second, changes in activity patterns and disrupted biological rhythms are expected to reduce behavioral synchrony in social processes such as reproduction, migration, and dispersal. Third, increased light at night is expected to affect the communication between individuals; primarily, it will increase the opportunities for visual social information transfer. Last, artificial nighttime light is expected to lower social competence, with subsequent negative effects on aggressive interactions and group coordination. Throughout the article, we propose testable hypotheses and identify suitable study species, and we hope that this article inspires future research on the effects of bright nights on social interactions and group dynamics.  
  Address Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, 12587 Berlin, Germany  
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  Publisher Oxford Journals Place of Publication Editor  
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  Call Number LoNNe @ schroer @ Serial 1082  
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Author Arnaud Da Silva, Jelmer M. Samplonius, Emmi Schlicht, Mihai Valcu, Bart Kempenaers url  doi
openurl 
  Title Artificial night lighting rather than traffic noise affects the daily timing of dawn and dusk singing in common European songbirds Type Journal Article
  Year 2014 Publication Behavioral Ecology Abbreviated Journal  
  Volume 25 Issue 5 Pages 1037-1047  
  Keywords animal, birds, dawn chorus, dusk chorus, light intensity, light pollution, noise pollution, seasonality, songbird, weather  
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  Call Number LoNNe @ schroer @ Serial 1105  
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Author Hauptfleisch, M.; Dalton, C. openurl 
  Title Arthropod phototaxis and its possible effect on bird strike risk at two Namibian airports Type Journal Article
  Year 2015 Publication Applied Ecology and Environmental Research Abbreviated Journal Appl. Ecol. & Environ. Res.  
  Volume 13 Issue 4 Pages 957-965  
  Keywords Animals; airport; arthropods; birds; bird strike; phototaxis; Lepidoptera; Namibia  
  Abstract Aircraft wildlife collisions are a global safety and financial problem for the aviation industry, with birds being the main concern. In Namibia, 97% of collisions at Namibia’s two main airports are reported to be with insectivorous birds. Phototaxis was identified as a major attractant to insectivorous

birds, which feed on the arthropods attracted to airport apron and terminal lights. This study considered the effect of light as an attraction at the rurally situated Hosea Kutako International and urban Eros airports. It further investigated the attractiveness of light colour (or wavelength) on arthropod abundance, biomass and diversity. The study found that phototaxis was a significant factor at Hosea Kutako only, and that white light was the main attractant for arthropods, specifically for large moths (Order Lepidoptera),

while yellow and orange light attracted significantly less arthropods. The study indicates a high likelihood that the Hosea Kutako apron lights (white) are an important attractant for arthropods, and therefore indirectly insectivorous birds, which can be reduced by replacing them with orange or yellow filters.
 
  Address Department of Agriculture and Natural Resources Sciences, Polytechnic of Namibia, Private Bag 13388, Windhoek, Namibia; mhauptfleisch@polytechnic.edu.na  
  Corporate Author Thesis  
  Publisher Aloki Place of Publication Editor  
  Language English Summary Language English Original Title  
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  Call Number IDA @ john @ Serial 1160  
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Author Vasquez, R A url  doi
openurl 
  Title Assessment of predation risk via illumination level: facultative central place foraging in the cricetid rodent Phyllotis darwini Type Journal Article
  Year 1994 Publication Behavioral Ecology and Sociobiology Abbreviated Journal  
  Volume 34 Issue 5 Pages 375-381  
  Keywords animals; rodents; foraging behaviour  
  Abstract It is well known that the risk of predation affects prey decision making. However, few studies have been concerned with the cues used by prey to assess this risk. Prey animals may use indirect environmental cues to assess predation hazard since direct evaluation may be dangerous. I studied the assessment of predation risk, manipulated via environmental illumination level, and the trade-off between foraging and predation hazard avoidance in the nocturnal rodent Phyllotis darwini (Rodentia: Cricetidae). In experimental arenas I simulated dark and full moon nights (which in nature correlate with low and high predation risk, respectively) and measured the immediate responses of animals to flyovers of a raptor model. Second, varying illumination only, I evaluated patch use, food consumption, central place foraging, and nocturnal variation of body weight. During flyover experiments, animals showed significantly more evasive reactions under full moon illumination than in moonless conditions. In the patch use experiments, rodents significantly increased their giving-up density and decreased their total food consumption under moonlight. On dark nights, rodents normally fed in the food patch, but when illumination was high they became central place foragers in large proportion. Moreover, the body weight of individuals decreased proportionately more during bright nights. These results strongly suggest that P. darwini uses the level of environmental illumination as a cue to the risk of being preyed upon and may sacrifice part of its energy return to avoid risky situations.  
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  Call Number LoNNe @ schroer @ Serial 1604  
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Author Himangshu Dutta url  openurl
  Title Insights into the impacts of four current environmental problems on flying birds Type Journal Article
  Year 2017 Publication Energy, Ecology and Environment Abbreviated Journal  
  Volume 2 Issue 5 Pages 329–349  
  Keywords Animals  
  Abstract A wide variety of substances and agents are released into the atmosphere due to anthropogenic activities. Higher levels of such entities have given rise to four major environmental problems: air, light and noise pollution and global warming, all of which severely affect birds and other animals. These four issues have been overlooked, although climate change is receiving increasing attention. The four challenges often occur simultaneously and are likely to exert composite impacts. Most studies have focused on the effects of a specific problem at a particular time and have never taken into account their cumulative consequences. This review tries to address this shortcoming. It aims to evaluate the composite impacts of the problems on flying birds beyond an understanding of their individual impacts. The review initially sheds light on the individual impacts based on existing scientific literature. Composite impacts were then estimated by assigning suitable scores to the literature to convert it into empirical data. Scores were then analysed. Through this assessment, it was found that the health of birds is highly vulnerable to the composite effects of the problems. Additionally, statistical analysis revealed that the effects of all problems on different aspects of avian biology are likely to be magnified simultaneously in the future. Thus, the impact of these problems on birds should not be neglected, and further studies should be conducted to understand their mechanisms.  
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  Notes Approved no  
  Call Number LoNNe @ kyba @ Serial 1744  
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