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Wildlife Crossings

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by

Madeline Scott

on 5 December 2012

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Transcript of Wildlife Crossings

Science Behind Money Effectiveness Opposition Why do we need them? Roads
55,650,943 miles of road in the US
Approximately 10,000 miles of new roads built in the US per year Additional 7-8% only
Made up in decrease in property damage Wildlife Crossings Do animals actually use them?
Do they actually work? Based on population density
Should base on movement
Random placement Anthropocentric
Ecocentric

So do they work? By Madeline Scott and Marissa Cameron Process to get a Crossing 1. Determine if crossing is needed
2. Identify the species that needs it
3.Determine which type of crossing is needed
4. Sufficient land and resources?
5.Cost of maintenance
6.Is it efficient? How Roads Impact Populations 1. Decrease amount and quality of Habitat available
2. Mortality rate increases due to vehicle collisions
3. Population is restricted to resources on other side of road
4. Divides populations into smaller sub-populations, this leads to sickness if the gene pool gets to limited Road Kill Approximately 253,000 animal vehicle accidents
Average of 200 humans dying annually
$2,000 to get a vehicle fixed after a collision Conclusion Types of Wildlife Crossings Large Mammals
Underpasses
Overpasses
Viaducts

Small Mammals
Culverts
tunnels

Amphibians
Amphibian tunnels

Fish
Fish ladders

Butterflies and birds
Green Roofs Bibliography "Banff National Park - Survival on the Move." YouTube. YouTube, 14 Jan. 2010. Web. 01 Nov. 2012.

"Habitat Fragmentation." Habitat Fragmentation. N.p., n.d. Web. 04 Nov. 2012.

"Key Concepts:." Ecological Consequences of Habitat Fragmentation. N.p., n.d. Web. 04 Nov. 2012.
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Macdonald, Laurie Ann, and Sietske Smith. "AN OPPORTUNITY TO IMPROVE HABITAT CONNECTIVITY." Clearing House. N.p., n.d. Web.

"Result Filters." National Center for Biotechnology Information. U.S. National Library of Medicine, n.d. Web. 04 Nov. 2012.

"Roadkill Statistics." â High Country News. N.p., n.d. Web. 01 Nov. 2012.

"Smithsonian.com." Smithsonian Magazine. N.p., n.d. Web. 04 Nov. 2012.

"WILDLIFE CROSSINGS: THE STATE OF THE SCIENCE." Creative Resource Strategies, LLC, n.d. Web. 1 Nov. 2012. Thank You! Public How does the public see them?
How can they help?
Full transcript