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Author (up) Vázquez-Mata, J.A.; Hernández-Toledo, H.M.; Martínez-Vázquez, L.A.; Pani-Cielo, A.
Title Light pollution around Tonantzintla Observatory Type Journal Article
Year 2009 Publication Proceedings of the International Astronomical Union Abbreviated Journal Proc. IAU
Volume 5 Issue S260 Pages
Keywords light pollution; observatories; sky brightness; Tonantzintla; Mexico; skyglow
Abstract Being close to the cities of Puebla to east and Cholula to the north, both having potential for large growth, the National Astronomical Observatory in Tonantzintla (OAN-Tonantzintla) faces the danger of deteriorating its sky conditions even more. In order to maintain competitiveness for education and scientific programs, it is important to preserve the sky brightness conditions. through: 1) our awareness of the night sky characteristics in continuous monitoring campaigns, doing more measurements over the next years to monitor changes and 2) encouraging local authorities about the need to regulate public lighting at the same time, showing them the benefits of such initiatives when well planed and correctly implemented.
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ISSN 1743-9213 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 263
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Author (up) Verutes, G.M.; Huang, C.; Estrella, R.R.; Loyd, K.
Title Exploring scenarios of light pollution from coastal development reaching sea turtle nesting beaches near Cabo Pulmo, Mexico Type Journal Article
Year 2014 Publication Global Ecology and Conservation Abbreviated Journal Global Ecology and Conservation
Volume 2 Issue Pages 170-180
Keywords Artificial light; Viewshed analysis; Sea turtle conservation; Coastal resort management; InVEST; sea turtle; reptiles; marine reptiles; vertebrates; Mexico; Baja California
Abstract New coastal development may offer economic benefits to resort builders and even local communities, but these projects can also impact local ecosystems, key wildlife, and the draw for tourists. We explore how light from Cabo Cortés, a proposed coastal development in Baja California Sur, Mexico, may alter natural light cues used by sea turtle hatchlings. We adapt a viewshed approach to model exterior light originating from the resort under plausible zoning scenarios. This spatially explicit information allows stakeholders to evaluate the likely impact of alternative development options. Our model suggests that direct light’s ability to reach sea turtle nesting beaches varies greatly by source location and height—with some plausible development scenarios leading to significantly less light pollution than others. Our light pollution maps can enhance decision-making, offering clear guidance on where to avoid elevated lamps or when to recommend lighting restrictions. Communities can use this information to participate in development planning to mitigate ecological, aesthetic and economic impacts from artificial lighting. Though tested in Mexico, our approach and free, open-source software can be applied in other places around the world to better understand and manage the threats of light pollution to sea turtles.
Address Natural Capital Project, Stanford University, 371 Serra Mall, Stanford, CA, 94305, USA
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Series Volume Series Issue Edition
ISSN 2351-9894 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 368
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