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Author Ceola, S.; Montanari, A.; Parajka, J.; Viglione, A.; Blöschl, G.; Laio, F.
Title Human signatures derived from nighttime lights along the Eastern Alpine river network in Austria and Italy Type Conference Article
Year 2016 Publication Abbreviated Journal
Volume (up) Issue Pages
Keywords Remote Sensing; Society; nightlights; human presence; river network; Strahler order; DMSP-OLS; OLS; DMSP-OLS; Austria; Italy; Eastern Alpine
Abstract Understanding how human settlements and economic activities are distributed with reference to the geographical location of streams and rivers is of fundamental relevance for several issues, such as flood risk management, drought management related to increased water demands by human population, fluvial ecosystem services, water pollution and water exploitation. Besides the spatial distribution, the evolution in time of the human presence constitutes an additional key question. This work aims at understanding and analysing the spatial and temporal evolution of human settlements and associated economic activity, derived from nighttime lights, in the Eastern Alpine region. Nightlights, available at a fine spatial resolution and for a 22-year period, constitute an

excellent data base, which allows one to explore in details human signatures. In this experiment, nightlights are associated to five distinct distance-from-river classes. Our results clearly point out an overall enhancement of human presence across the considered distance classes during the last 22 years, though presenting some differences among the study regions. In particular, the river network delineation, by considering different groups of river pixels based on the Strahler order, is found to play a central role in the identification of nightlight spatio-temporal trends.
Address Dipartimento di Ingegneria Civile, Chimica, Ambientale e dei Materiali, Università di Bologna, Bologna, Italy
Corporate Author Thesis
Publisher International Association of Hydrological Sciences Place of Publication Editor
Language English Summary Language English Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference 7th International Water Resources Management Conference of ICWRS, 18–20 May 2016, Bochum, Germany
Notes Approved no
Call Number IDA @ john @ Serial 1432
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Author Degen, T.; Mitesser, O.; Perkin, E.K.; Weiss, N.-S.; Oehlert, M.; Mattig, E.; Hölker, F.
Title Street lighting: sex-independent impacts on moth movement Type Journal Article
Year 2016 Publication The Journal of Animal Ecology Abbreviated Journal J Anim Ecol
Volume (up) Issue Pages
Keywords Biology
Abstract 1.Artificial lights have become an integral and welcome part of our urban and peri-urban environments. However, recent research has highlighted the potentially negative ecological consequences of ubiquitous artificial light. In particular, insects, especially moths, are expected to be negatively impacted by the presence of artificial lights. Previous research with light traps has shown a male-biased attraction to light in moths. 2.In this study, we sought to determine if street lights could limit moth dispersal and if there was any sex bias in attraction to light. More specifically, we aimed to determine sex specific attraction radii for moths to street lights. 3.We tested these hypotheses by collecting moths for two years at an experimental setup. To estimate the attraction radii we developed a Markov model and related it to the acquired data. 4.Utilizing multinomial statistics, we found that attraction rates to lights in the middle of the matrix were substantially lower than predicted by the null hypothesis of equal attraction level (0.44 times). With the Markov model, we estimated that a corner-light was 2.77 times more attractive than a wing-light with an equivalent attraction radius of c. 23m around each light. We found neither sexual differences in the attraction rate nor in the attraction radius of males and females. Since we captured three times more males than females, we conclude that sex ratios are representative of operational sex ratios or of different flight activities. 5.These results provide evidence for street lights to limit moth dispersal, and that they seem to act equally on male and female moths. Consequently, public lighting might divide a suitable landscape into many small habitats. Therefore, it is reasonable to assume i) that public lighting near hedges and bushes or field margins reduces the quality of these important habitat structures, and ii) that public lighting near important habitat structures but not interfering with local movement may affect moth movement between patches. This article is protected by copyright. All rights reserved.
Address Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany
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 0021-8790 ISBN Medium
Area Expedition Conference
Notes PMID:27146262 Approved no
Call Number LoNNe @ kyba @ Serial 1439
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Author Mavraki, N.; Georgiadis, M.; Koutsikopoulos, C.; Tzanatos, E.
Title Unravelling the nocturnal appearance of bogue Boops boops shoals in the anthropogenically modified shallow littoral Type Journal Article
Year 2016 Publication Journal of Fish Biology Abbreviated Journal J Fish Biol
Volume (up) Issue Pages
Keywords Animals; artificial habitats; coastal zone; fish behaviour; nocturnal migration; predation avoidance; Boops boops; fish
Abstract In the present study the role of the nocturnal migration of bogue Boops boops shoals to anthropogenically modified shallow littoral locations was examined, evaluating four alternative hypotheses: (1) feeding, (2) reproduction, (3) attraction of B. boops to artificial light and (4) concealment in the darkness related to predation avoidance. All hypotheses apart from predation avoidance were rejected, as B. boops tended to concentrate in shaded locations of wider illuminated areas, a finding not only important concerning fish behaviour, but also with significant management implications.
Address Section of Animal Biology, Department of Biology, University of Patras, GR 26504 Rio, Patras, Greece; ninon.mavraki(at)gmail.com
Corporate Author Thesis
Publisher FSBI Place of Publication Editor
Language English Summary Language English Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0022-1112 ISBN Medium
Area Expedition Conference
Notes PMID:27094613 Approved no
Call Number IDA @ john @ Serial 1447
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Author Grove, L.
Title Reducing Acadia's Light Pollution Type Manuscript
Year 2016 Publication Abbreviated Journal
Volume (up) Issue Pages
Keywords Conservation; Society; Economics; Acadia National Park; Maine; benefit cost analysis; astrotourism; contingent valuation method; dark sky places; dark sky park
Abstract Acadia National Park is among the most visited national parks in the United States, attracting millions of people per year. Thousands of those visitors come to the park for “astro-tourism,” as Acadia has become one of the premier stargazing locations on the east coast. There remains, however, the continued threat from light pollution from the surrounding communities that negatively affects Acadia's darkness, contributing to a lesser visitor experience and potentially harming native ecosystems. Although park management and community organizations have engaged in significant efforts to decrease Acadia's nighttime light levels and raise awareness among visitors and locals regarding the importance of darkness, the park still seek to continue to decrease light pollution. This report developed policy options that could help solve the long-term policy goal of decreasing nighttime lighting levels within and around Acadia while also using the International Dark-Sky Association's Dark-Sky Park designation requirements as a reasonable, short-term policy benchmark.

Working within existing organizations, the policy options crafted to address Acadia’s nighttime lighting levels were analyzed both qualitatively through a criteria evaluation and quantitatively through a Benefit Cost Analysis.

The options included 1) the formation of a Darkness Coalition within the League of Towns, 2) a reimagining of the Worcester Polytechnic Institute Dark-Sky Project into the Dark-Sky Taskforce, 3) the creation of a Lighting Consultant position paid through the Friends of Acadia Wild Acadia initiative, and 4) the combination of Coalition and the Taskforce into the League of Towns – Dark-Sky Partnership (LOT-DSP). The report recommends the adoption of Option 4 – the creation of the LOT – DSP. While this option does not provide the greatest estimated monetary net value compared to the Status Quo in the quantitative evaluation, it still provides an estimated benefit of about $105 million over the course of five years and is the strongest option in the qualitative analysis. The LOT – DSP provides the best opportunity for Acadia to achieve legitimate and long-lasting nighttime light level reduction.
Address Frank Batten School of Leadership and Public Policy, Garrett Hall, 235 McCormick Road, P.O. Box 400893, Charlottesville, VA 22904-4893 USA; locher.grove(at)gmail.com
Corporate Author Thesis Master's thesis
Publisher University of Virginia Place of Publication Charlottesville Editor
Language English Summary Language English 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 IDA @ john @ Serial 1449
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Author Scheffler, T.; Kyba, C.C.M.
Title Measuring Social Jetlag in Twitter Data Type Conference Article
Year 2016 Publication Proceedings of the Tenth International AAAI Conference on Web and Social Media (ICWSM 2016) Abbreviated Journal
Volume (up) Issue Pages 675-678
Keywords Human Health; Sunlight; Society
Abstract Social constraints have replaced the natural cycle of light and darkness as the main determinant of wake-up and activity times for many people. In this paper we show how Twitter activity can be used as a source of large-scale, naturally occurring data for the study of circadian rhythm in humans. Our year-long initial study is based on almost 1.5 million observations by over 200,000 users. The progression of the onset of Twitter activity times on free days in the course of the year is consistent with previous survey-based research on wake

times. We show that the difference in wake-up time (implicating lack of sleep) on weekdays compared to Sundays is between 1 hour and over 2 hours depending on the time of year. The data also supports the assertion that Daylight Saving Time greatly disrupts the easing of social jetlag in the Spring transition.
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 ICWSM 2016
Notes Approved no
Call Number LoNNe @ kyba @ Serial 1453
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