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Author Troy, J.R.; Holmes, N.D.; Veech, J.A.; Green, M.C. url  doi
openurl 
  Title Using observed seabird fallout records to infer patterns of attraction to artificial light Type Journal Article
  Year 2013 Publication Endangered Species Research Abbreviated Journal  
  Volume (down) 22 Issue 3 Pages 225-234  
  Keywords Animals; Anthropogenic light; GIS-based modeling; Hawaii; Kauai; Light attraction; Procellariiformes; Newell’s shearwater; Seabird conservation  
  Abstract Attraction of fledgling shearwaters, petrels, and storm-petrels to artificial light has been documented for decades on islands around the world and is considered a significant threat to many species. Although large numbers of downed birds have been observed after being disoriented by light, several important elements of this ‘fallout’ phenomenon are unknown, including the locations along the path from nest to ocean at which attraction and/or disorientation occurs and whether fledglings can be attracted back to land after reaching the ocean in numbers large enough to contribute significantly to fallout. To investigate these questions, we compared observed Newell’s shearwater Puffinus newelli fallout records (from 1998 to 2009) on Kauai, USA, with expected numbers generated from several hypothetical models containing basic assumptions related to fledgling movement and attraction to light. Based on our results, the spatial pattern of observed fallout is consistent with the amount of light that fledglings may view along their first flights to and beyond the coastline. This suggests that even fledglings from dark regions of the island may not be safe because they may view light after reaching the ocean and still be susceptible to attraction. These findings support recent modeling efforts predicting that most birds fledging from Kauai are likely exposed to at least some anthropogenic light. As nocturnal use of light by humans is unlikely to be eliminated, research on the types of artificial light that are both useful to humans and safe for seabirds may be crucial for the conservation of these important marine animals.  
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  Call Number LoNNe @ christopher.kyba @ Serial 383  
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Author Boscarino, B.T.; Rudstam, L.G.; Eillenberger, J.L.; O'Gorman, R. url  doi
openurl 
  Title Importance of light, temperature, zooplankton and fish in predicting the nighttime vertical distribution of Mysis diluviana Type Journal Article
  Year 2009 Publication Aquat Biol Abbreviated Journal  
  Volume (down) 5 Issue Pages 263-279  
  Keywords Animals; Mysis relicta; Modeling; Migration; Zooplankton; Vertical distribution; DVM  
  Abstract The opossum shrimp Mysis diluviana (formerly M. relicta) performs large amplitude diel vertical migrations in Lake Ontario and its nighttime distribution is influenced by temperature, light and the distribution of its predators and prey. At one location in southeastern Lake Ontario, we measured the vertical distribution of mysids, mysid predators (i.e. planktivorous fishes) and mysid prey (i.e. zooplankton), in addition to light and temperature, on 8 occasions from May to September, 2004 and 2005. We use these data to test 3 different predictive models of mysid habitat selection, based on: (1) laboratory-derived responses of mysids to different light and temperature gradients in the absence of predator or prey cues; (2) growth rate of mysids, as estimated with a mysid bioenergetics model, given known prey densities and temperatures at different depths in the water column; (3) ratio of growth rates (g) and mortality risk (μ) associated with the distribution of predatory fishes. The model based on light and temperature preferences was a better predictor of mysid vertical distribution than the models based on growth rate and g:μ on all 8 occasions. Although mysid temperature and light preferences probably evolved as mechanisms to reduce predation while increasing foraging intake, the response to temperature and light alone predicts mysid vertical distribution across seasons in Lake Ontario.  
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  Call Number LoNNe @ christopher.kyba @ Serial 402  
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Author Troy, J.R.; Holmes, N.D.; Green, M.C. url  doi
openurl 
  Title Modeling artificial light viewed by fledgling seabirds Type Journal Article
  Year 2011 Publication Ecosphere Abbreviated Journal Ecosphere  
  Volume (down) 2 Issue 10 Pages art109  
  Keywords artificial light; fallout; Hydrobatidae; modeling; Newell's Shearwater; Procellariidae; Puffinus newelli; birds  
  Abstract Artificial light is increasing in coverage across the surface of our planet, impacting the behavioral ecology of many organisms. Attraction to sources of artificial light is a significant threat to certain fledgling shearwaters, petrels (Procellariidae), and storm-petrels (Hydrobatidae) on their first nocturnal flights to the sea. Disorientation by light can cause these birds to crash into vegetation or manmade structures, potentially resulting in death from physical injury, starvation, dehydration, predation by introduced predators, or collisions with vehicles. We developed a GIS-based method to model the intensity of artificial light that fledgling procellariids and hydrobatids could view en route to the ocean (to estimate the degree of threat that artificial light poses to these birds) and present two models for the island of Kauai as examples. These models are particularly relevant to the federally threatened Newell's Shearwater, or `A`o (Puffinus newelli), of which >30,000 fledglings have been collected in response to disorientation by lights on Kauai during the past 30 years. Our models suggest that there are few to no portions of Kauai from which young birds could fledge and not view light on their post-natal nocturnal flights, which is concerning given evidence of a Newell's Shearwater population decline. In future work using this technique, night light intensity layers could be altered to model the effects of modified coastal light conditions on known and potential procellariid and hydrobatid breeding locations. Furthermore, certain methods presented herein may be applicable to other seabirds and additional taxa in which attraction to anthropogenic light poses a serious threat, including migratory passerines and hatchling marine turtles. Components of this modeling approach could potentially be used to spatially estimate effects of other point-source threats to ecological systems, including sound and air pollution.  
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  ISSN 2150-8925 ISBN Medium  
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  Notes Approved no  
  Call Number IDA @ john @ Serial 60  
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Author Weishampel, Z.A.; Cheng, W.-H.; Weishampel, J.F. url  doi
openurl 
  Title Sea turtle nesting patterns in Florida vis-à-vis satellite-derived measures of artificial lighting Type Journal Article
  Year 2016 Publication Remote Sensing in Ecology and Conservation Abbreviated Journal Remote Sens Ecol Conserv  
  Volume (down) 2 Issue 1 Pages 59-72  
  Keywords Animals; sea turtles; Artificial light; DMSP; light pollution; marine turtles; nest surveys; simultaneous autoregressive modeling; Florida; United States; Loggerhead turtle; Caretta caretta; Leatherback turtle; Dermochelys coriacea; Green turtle; Chelonia mydas  
  Abstract Light pollution contributes to the degradation and reduction of habitat for wildlife. Nocturnally nesting and hatching sea turtle species are particularly sensitive to artificial light near nesting beaches. At local scales (0.01–0.1 km), artificial light has been experimentally shown to deter nesting females and disorient hatchlings. This study used satellite-based remote sensing to assess broad scale (~1–100s km) effects of artificial light on nesting patterns of loggerhead (Caretta caretta), leatherback (Dermochelys coriacea) and green turtles (Chelonia mydas) along the Florida coastline. Annual artificial nightlight data from 1992 to 2012 acquired by the Defense Meteorological Satellite Program (DMSP) were compared to an extensive nesting dataset for 368, ~1 km beach segments from this same 21-year period. Relationships between nest densities and artificial lighting were derived using simultaneous autoregressive models to adjust for the presence of spatial autocorrelation. Though coastal urbanization increased in Florida during this period, nearly two-thirds of the surveyed beaches exhibited decreasing light levels (N = 249); only a small fraction of the beaches showed significant increases (N = 52). Nest densities for all three sea turtle species were negatively influenced by artificial light at neighborhood scales (<100 km); however, only loggerhead and green turtle nest densities were influenced by artificial light levels at the individual beach scale (~1 km). Satellite monitoring shows promise for light management of extensive or remote areas. As the spectral, spatial, and temporal resolutions of the satellite data are coarse, ground measurements are suggested to confirm that artificial light levels on beaches during the nesting season correspond to the annual nightlight measures.  
  Address Department of Biology, University of Central Florida, Orlando, FL 32816 USA; John.Weishampel(at)ucf.edu  
  Corporate Author Thesis  
  Publisher Wiley Place of Publication Editor  
  Language English Summary Language English Original Title  
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  Series Volume Series Issue Edition  
  ISSN 2056-3485 ISBN Medium  
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  Notes Approved no  
  Call Number IDA @ john @ Serial 1346  
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Author Nievas Rosillo, M. pdf  url
openurl 
  Title Absolute photometry and Night Sky Brightness with all-sky cameras Type Report
  Year 2013 Publication e-prints Complutense Abbreviated Journal e-prints Complutense  
  Volume (down) Issue 24626 Pages  
  Keywords Instrumentation; skyglow; measurement; modeling  
  Abstract All-sky cameras have proven to be powerful tools to continuously monitoring the sky in a wide range of fields in both Astrophysics and Meteorology. In this work, we have developed a complete software pipeline to analyze the night CCD images obtained with one of such systems. This let us to study typical parameters used in Astrophysics to characterize the night sky quality, such as the Sky Brightness, the Cloud Coverage and the Atmospheric Extinction, how they evolve over the time and their variability. Using our software, we analyzed a large set of data from AstMon-OT all-sky camera at Teide Observatory. Results from this work have been applied in the support to the spanish CTA site proposal at Izaña, Tenerife and are being discussed within the CTA consortium. A comparison with data from other devices that have been used in site characterization such as the IAC80 telescope is also presented. This comparison is used to validate the results of the analysis of all-sky images. Finally, we test our software with AstMon-UCM and DSLR cameras. Some general recommendations for the use of DSLR cameras are provided.  
  Address Departamento de Astrofí­sica y Ciencias de la Atmosfera, Universidad Complutense de Madrid, Madrid, Spain  
  Corporate Author Thesis Master's thesis  
  Publisher Place of Publication Madrid Editor  
  Language English Summary Language English Original Title  
  Series Editor Series Title e-prints Complutense Abbreviated Series Title  
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  Area Expedition Conference  
  Notes Approved no  
  Call Number IDA @ john @ Serial 1437  
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