ENVIR ST 260 1st Edition Lecture 25 Outline of Last Lecture I Conservation of Large Carnivores II History of wolves and management in Wisconsin III Human wolf conflict and perceptions IV Does a public harvest increase tolerance of wolves Outline of Current Lecture I Housekeeping II Urban Lakes III Course Wrap Up Current Lecture Housekeeping Evaluation link posted on Moodle E writing grades up by Monday Dec 15 Will set rubric pick up hours next week Final exam and course grades posted Fri Sat next week Contact Dr Tracy with questions Urban Lakes Yahara Watershed Land cover There is light to heavy development crammed in an area around the lakes The high population density located in this region is what we re concerned about What are ways that people impact urban lakes Class Ideas Fertilizer runof Recreation Boats on the water can pollute if gasoline or oil leaks Aquatic Organisms people move them around aquatic hitchhikers Acid Rain Can change chemistry of water Dairy Farms runof of nitrogen and phosphorous Efects of imperviousness on runof and infiltration These 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 Completely natural area 10 run of 50 infiltration Rural communities 20 runof 42 infiltration Medium Density suburban areas 30 Runof 35 infiltration Cities 55 Runof 15 Infiltration Stuf on the ground now has a really easy route to get into the lakes What caused the most beach closures in 2013 Blue green algae and high E Coli This changes throughout the years 2010 there was a lot of E Coli In 2008 there were sewage problems Sources of pollution for Madison lakes Dairy farm runof high P Algae Video Can be harmful to health of people and pets City has taken the solution of just going out and harvesting the large plant material that s on the surface They pick up all the algae that they can Impacts Health Gastrointestinal distress Rashes Respiratory problems Ecological Algal blooms Fish kills Invasive species Potential Solutions Manure Digesters Seal replace sewer lines Yard waste Leave the leaf program Pushing idea that rather than raking leaves and hauling them of mulch them on own property What is the primary management objective Safe recreation Compromise Health and safety vs ecosystem function Health and safety wins out Access and use vs wilderness Snowmobiles in Yellowstone people want access but want to protect wildlife Economic vs ecosystem protection Course Wrap Up Evolution Populations and Communities Ecosystems grasslands deserts etc Controversy and ethics Local ecology Facing Marley s Ghost Scrooge changed his behavior his attitude his life his very humanity Kricher CH 14 Interesting metaphor for ecology and people in general We re the ones who are Scrooge in this case In a single evening Scrooge sees the past present and future We see past present but do a bad job of thinking of the future in ecology We have a difficult time planning for the future Motivation for change Limited access to clean water Loss of natural pollinators Increased cost of oil gas electricity etc A lot ties to money and things that have a negative impact on our cozy American lives The point here is that things including natural things are not always as they seem Nor are they necessarily as we might wish them to be They just are Kricher Ch 1 How strongly do you agree with this statement