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Author (up) Kamrowski, R.; Limpus, C.; Moloney, J.; Hamann, M. url  doi
openurl 
  Title Coastal light pollution and marine turtles: assessing the magnitude of the problem Type Journal Article
  Year 2012 Publication Endangered Species Research Abbreviated Journal Endang. Species. Res.  
  Volume 19 Issue 1 Pages 85-98  
  Keywords Artificial light; Orientation; Coastal development; GIS analysis; Vulnerability assessment; turtles; reptiles; animals; marine turtles; Australia; Queensland  
  Abstract Globally significant numbers of marine turtles nest on Australian beaches; however, the human population of Australia is also heavily concentrated around coastal areas. Coastal development brings with it increases in artificial light. Since turtles are vulnerable to disorientation from artificial light adjacent to nesting areas, the mitigation of disruption caused by light pollution has become an important component of marine turtle conservation strategies in Australia. However, marine turtles are faced with a multitude of anthropogenic threats and managers need to prioritise impacts to ensure limited conservation resources can result in adequate protection of turtles. Knowledge of the extent to which nesting areas may be vulnerable to light pollution is essential to guide management strategies. We use geographical information system analysis to over-lay turtle nesting data onto night-time lights data produced by the NOAA National Geophysical Data Center, to assess the proportion of marine turtles in Australia potentially at risk from light pollution. We also identify the Australian nesting sites which may face the greatest threat from artificial light. Our assessment indicates that the majority of nesting turtles appear to be at low risk, but population management units in Western Australia and Queensland are vulnerable to light pollution. The risk to turtles from light generated by industrial developments appears significantly higher than at any other location. Consequently, managers of turtle management units in regions of proposed or on-going industrial development should anticipate potentially disrupted turtle behaviour due to light pollution. Our methodology will be useful to managers of turtles elsewhere.  
  Address  
  Corporate Author Thesis  
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  Series Volume Series Issue Edition  
  ISSN 1863-5407 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number IDA @ john @ Serial 74  
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Author (up) Kamrowski, R.L.; Limpus, C.; Jones, R.; Anderson, S.; Hamann, M. url  doi
openurl 
  Title Temporal changes in artificial light exposure of marine turtle nesting areas Type Journal Article
  Year 2013 Publication Global Change Biology Abbreviated Journal Glob Chang Biol  
  Volume 20 Issue 8 Pages 2437-2449  
  Keywords GIS analysis; artificial light; conservation planning; marine turtles; population resilience; temporal change  
  Abstract Artificial light at night poses a significant threat to multiple taxa across the globe. In coastal regions, artificial lighting close to marine turtle nesting beaches is disruptive to their breeding success. Prioritizing effective management of light pollution requires an understanding of how the light exposure of nesting areas changes over time in response to changing temporal and spatial distributions of coastal development. We analyzed multitemporal, satellite night-light data, in combination with linear mixed model analysis, to determine broadscale changes in artificial light exposure at Australian marine turtle nesting areas between 1993 and 2010. We found seven marine turtle management units (MU), from five species, have experienced significant increases in light exposure over time, with flatback turtles nesting in east Australia experiencing the fastest increases. The remaining 12 MUs showed no significant change in light exposure. Unchanging MUs included those previously identified as having high exposure to light pollution (located in western Australia and southern Queensland), indicating that turtles in these areas have been potentially exposed to high light levels since at least the early nineties. At a finer geographic scale (within-MU), nine MUs contained nesting areas with significant increases in light exposure. These nesting areas predominantly occurred close to heavily industrialized coastal areas, thus emphasizing the importance of rigorous light management in industry. Within all MUs, nesting areas existed where light levels were extremely low and/or had not significantly increased since 1993. With continued coastal development, nesting females may shift to these darker/unchanging 'buffer' areas in the future. This is valuable information that informs our understanding of the capacity and resilience of marine turtles faced with coastal development: an understanding that is essential for effective marine turtle conservation.  
  Address School of Earth and Environmental Sciences, James Cook University, Townsville, QLD, 4811, Australia  
  Corporate Author Thesis  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1354-1013 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:24353164 Approved no  
  Call Number IDA @ john @ Serial 73  
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