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UW-Madison ENVIRST 260 - Ecological Controversies

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ENVIR ST 260 1st Edition Lecture 20Outline of Last Lecture I. What Are Ecosystem ServicesII. Specific Examples of Ecosystem ServicesIII. What is the $$ Value of Ecosystem ServicesIV. Ecosystem ValuationV. HousekeepingOutline of Current Lecture I. Snowmobiling in Yellow Stone ParkII. Hydroelectric PowerIII. Restoration in Chicago and Public OpinionCurrent LectureSnowmobiling in Yellow Stone Park Arguments from Video Environmentalists Strongest Arguments:- Noise Pollution- Safety Weak Arguments:- Negative Economic Impact of Snowmobiles Snowmobilers Strongest Arguments:- Economic income during winter Weak Arguments:- Best way to enjoy the park Ecological Impacts of Snowmobiling Alter wildlife movementThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute. Some herds will go down trails. There’s some thoughts that the wolf population is interactingwith prey differently because they’re all moving along the same pathway Damage vegetation Increase erosion Areas that have been packed down melt differently, so along some of these trails there are greater erosion problems Air and water pollution “Snowmobiling on open water involves a daring or, in some cases, intoxicated snowmobiler with a powerful machine who attempts to either make it across open water or to take a round trip on open water without submerging the snowmobile” Specific to report. If we have drunk people sinking their snowmobiles, you get gas and pollutantsin the water Clicker Question: How do the impacts of visitation in winter of Yellowstone NP compare to visitation in summer? There’s more activities in summer, so the potential for negative impacts in the summer are greater  Yellowstone tops Three Million Visitors For third Straight Summer” –NPS 2011 Stats There are SO many cars in the summer. Snowmobiles are high in pollution, but 3 million cars will also pump out pollution 3,000,000 visitors create a lot of trash that doesn’t get disposed of properly. You find a lot of it out on the trails A lot of money is tied into this, so no one is complaining about all the visitors.  Compromise 6 or 7 groups of 10 of snowmobilers are allowed and they have to use the newer models. Hydroelectric Power Dams can generate a lot of power. People typically promote this as green; they don’t burn coal and there isn’t the perceived danger like with nuclear plants Clicker Question: Dam Impacts Trap sediment Negative effects on fisheries Downstream erosion A and B only All of the above All of the above is correct Dam Removal on OSU Campus They’ll look at the area that will no longer be blocked and expect to see changes; there will probably be more species moving up the river and the water quality and sedimentation will probably change Removing Dams Why Keep: Non-polluting Energy Recreational: Interest of property owners on reservoirs and lakesRestoration in Chicago and Public Opinion Prior to European settlement, there would’ve been prairie and oak savanna habitat. The influx of people changed a lot of ecological processes.  Woodland Ecosystem: Think about a natural area you enjoy visiting How upset would you be if there were native trees cut down and trails torn up by equipment with no signage about ecology? Very-you plan to make phone calls and complain Somewhat – you will ask someone at the visitors center A little – you’ll look into what’s going on Not at All- Most people said B because it’d be less enjoyable, they’d want to know why and people often get attached to land they frequently visit as if they owned it In Chicago: Restoration activities Prescribed fire Wildlife control Herbicide use Cutting brush and trees People went out and saw this destruction and got upset. They felt ownership of it. A lot of this was happening in the 70s and 80s. If you talk to people who are involved, they’re very weary of what they do and public perception. A lot of backlash Public perception Money could be put to better use Loss of recreation value Human interference with nature How to change public perception? Class Ideas Say why the restored ecosystem would have greater value? Lay out all the facts including benefits and why you’re changing it; transparency Education Newsletters Signage Press (local TV news) As we move into local ecological issues Present multiple opinions Think about common values and compromise Recognize that the most ecologically appropriate solution may not be


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UW-Madison ENVIRST 260 - Ecological Controversies

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