4/22/14 WARM UP1. Grab Folders

2. Pull out notes from yesterday (HUMAN IMPACT NOTES)

3. Answer question on that paper:

What must often be added to increase the speed or ability of two substances to react?a. A bigger containerb. Adding heatc. More substancesd. Adding water

• Which of these is an example of energy involved in a chemical change/.a. Dropping a rockb. Heating a burner on stove topc. Freezing an ice cubed. Burning a candle

5. Suburban Sprawl & Deer

• What is it: When people build communities right on the

edge of a natural habitat for a species – then many species will start to come into the developed land

• Issue:• What to do?

• http://ur.umich.edu/9596/May07_96/artcl18.htm, http://www.rpaforall.org/RPA%20Factsheet%205.pdf

MON TUES WEDS THURS FRI SAT SUN

21 22 23 24 25 26 27

28 29REVIEW FOR TEST

30ECOLOGYTEST

1 2ChemistryReview

3 4

5PhysicsReview

6GeologyReview

7Ecology Review

8SAGETEST

9SAGE TEST

10 11

12 13 14PROJECTSDUE

15 16 17 18

19 20 21LAST DAY FOR ASSIGN

22 23LAST DAY OF SCHOOL

24 25

Biodiversity, Extinction & Exotic Species

SWOD: Natural Selection

Biodiversity• The number of different species in an area • Biodiversity = a variety of animals and life

• http://fc01.deviantart.net/fs30/i/2008/077/b/8/Diversity_of_Species___Brushes_by_scumbugg.jpg

The value of biodiversity

• 2 ways:• 1. economic value– Foods, resources,

commodities- Medicines

• 2. ecological value– Food webs

• http://www.biologycorner.com/resources/foodweb1.gif

Concerns with Biodiversity

• Decline in habitatExtinction/endangered species

(extinction = organism is completely gone(endangered = very few species left and could possibly become extinct)Causes: watch video and write down all the

causes of extinction.

Extinction Causes

Causes:1. Habitat destruction (primary cause)2. Poaching3. Pollution4. Exotic species discuss later in class

Thylacine

http://www.fxdirectory.info/wp-content/uploads/2011/03/Baiji-dolphin-is-endangered-habitat.jpg• http://en.wikipedia.org/wiki/File:Pteropus_conspicillatus.jpg• http://www.dodo.blog.br/wp-content/uploads/2007/08/ferahgo.jpg

Exotic/Introduced/Invasive species

• Advantages: • Pollination• Food– Butterflies feeding on non-native plants

• Reforestation– Exotic trees restore forest to help bring back

native species• Endangered

Examples of Exotic Species that were harmful

• Zebra Mussel• Kudzu• Nutria Rat• River Monster & Piranas

Zebra Mussels

Disadvantages

• 1. Kudzu: prevent soil erosion• Kudzu video

Nutria Rat

Disadvantages of Exotic Species

• In your tables, come up with a list of 4 disadvantages that come with introducing an exotic species.

• Think of 2 other exotic species we did not discuss in class