Sources for Maps
"Wildlife on the Road" Maps
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​Carcass and WVC data:
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Waetjen, D.P. and F.M. Shilling (2017) Large extent roadkill and wildlife observation systems as sources of reliable data. Frontiers in Ecology and Evolution. doi: 10.3389/fevo.2017.00089
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Traffic Counts
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Roads:
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Southern California Counties
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"Potential Overpasses" Maps
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Digital Elevation Models
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Landcover
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US Geological Survey, Gap Analysis Program (GAP). May 2011. National Land Cover, Version 2​
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Roads:
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Southern California Counties
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"Endangered Species" Maps
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Endangered Mammals
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Roads:
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Southern California Counties
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Sources for Background Information
Barragan, B. (2017, September 15). Wildlife crossing over the 101 could begin construction by 2022. Retrieved March 19, 2018, from https://la.curbed.com/2017/9/14/16310204/wildlife-crossing-liberty-canyon-mountain-lions
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Bruinderink, G. W. T. A.; Hazebroek, E. (1996). "Ungulate traffic collisions in Europe". Conservation Biology. 10: 1059–1067. doi:10.1046/j.1523-1739.1996.10041059.x
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Chung, E. (2014, February 18). Banff Bears Use Trans-Canada Wildlife Crossings To Find Mates; Wildlife Crossings Can Cost Up To $4M Each, But Benefit Bear Populations. Retrieved March 19, 2018, from https://arc-solutions.org/article/banff-bears-use-trans-canada-wildlife-crossings-to-find-mates-wildlife-crossings-can-cost-up-to-4m-each-but-benefit-bear-populations/
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