introduction to ecology
DESCRIPTION
Introduction to Ecology. 10/12/2012. Goals for the day. Understand, and be able to describe the difference between r-strategists and K-strategists. Be able to draw the exponential & logistic growth curves labeling the X & Y axes (and carrying capacity where necessary) - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Introduction to Ecology](https://reader036.vdocuments.us/reader036/viewer/2022062322/568151b5550346895dbfe299/html5/thumbnails/1.jpg)
Introduction to Ecology
10/12/2012
![Page 2: Introduction to Ecology](https://reader036.vdocuments.us/reader036/viewer/2022062322/568151b5550346895dbfe299/html5/thumbnails/2.jpg)
Goals for the day
1. Understand, and be able to describe the difference between r-strategists and K-strategists.
2. Be able to draw the exponential & logistic growth curves labeling the X & Y axes (and carrying capacity where necessary)
• Be able to say how ozone depletion is involved in skin cancer.
![Page 3: Introduction to Ecology](https://reader036.vdocuments.us/reader036/viewer/2022062322/568151b5550346895dbfe299/html5/thumbnails/3.jpg)
Question of the day
Draw & Label an Exponential Growth Curve & a Logistic Growth Curve. What is the main thing that separates them?
![Page 4: Introduction to Ecology](https://reader036.vdocuments.us/reader036/viewer/2022062322/568151b5550346895dbfe299/html5/thumbnails/4.jpg)
![Page 5: Introduction to Ecology](https://reader036.vdocuments.us/reader036/viewer/2022062322/568151b5550346895dbfe299/html5/thumbnails/5.jpg)
Question of the day
Draw & Label an Exponential Growth Curve & a Logistic Growth Curve. What is the main thing that separates them?
![Page 6: Introduction to Ecology](https://reader036.vdocuments.us/reader036/viewer/2022062322/568151b5550346895dbfe299/html5/thumbnails/6.jpg)
Ozone Layer- absorbs harmful UV radiation from the sun.
What have you heard about the ozone layer?
![Page 7: Introduction to Ecology](https://reader036.vdocuments.us/reader036/viewer/2022062322/568151b5550346895dbfe299/html5/thumbnails/7.jpg)
Ozone Layer- absorbs harmful UV radiation from the sun.
Depletion ( ) - first noticed in the late 1970s, ozone depletion has been caused by a build up of Chloroflorocarbons (CFCs) in the upper atmosphere (Stratosphere).
![Page 8: Introduction to Ecology](https://reader036.vdocuments.us/reader036/viewer/2022062322/568151b5550346895dbfe299/html5/thumbnails/8.jpg)
Ozone Layer Depletion
• In 1987 the MONTREAL PROTOCOL, a UN Treaty was signed by 24 countries. This protocol banned the use of CFCs to prevent further damage to the ozone layer.
![Page 9: Introduction to Ecology](https://reader036.vdocuments.us/reader036/viewer/2022062322/568151b5550346895dbfe299/html5/thumbnails/9.jpg)
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CFCs have are a long lived gas in the atmosphere, but due to the Montreal Protocol, which 197 countries have now signed,
CFCs are starting to dissipate ( ) and the Ozone layer is starting to heal
![Page 11: Introduction to Ecology](https://reader036.vdocuments.us/reader036/viewer/2022062322/568151b5550346895dbfe299/html5/thumbnails/11.jpg)
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Depletion (Decrease ) of ozone in the atmosphere has been implicated (linked/accused ) in the cause of skin
cancer. WHY?
Due to increased amounts of UV radiation from the sun.
![Page 13: Introduction to Ecology](https://reader036.vdocuments.us/reader036/viewer/2022062322/568151b5550346895dbfe299/html5/thumbnails/13.jpg)
Field Guide Page
• You will CREATE 2 organisms
• One will be a K strategist, AND one will be an r strategist
• Each organism will have its own field guide page with the following attributes