1. In Notebook: What type of graph is this? &
Thursday October 22nd
In Notebook:
What type of graph is this?
&
Write 2 sentences describing the yeast population.

2. Today’s Learning Targets
Agenda:
Population Questions
Biodiversity
Populations Packet Work Time - Due Monday!

3. On a loose sheet of paper:
NAME
Is the world’s human population increasing or decreasing?
List 2 advances in society that allow for the carrying capacity/human population to increase.
Which countries have a higher growth rate, developed or developing.
Is the human population on Earth greater than or less than 7 billion?
Do all countries have he same populations growth rate? Yes or No?
** Bring it up to me when done. No phones until everyone is done!

4. Diversity in Everyday Life: What is it?
Diversity = the quality or state of having many different forms, types, ideas, etc.

5. = Variety of life in an area (# of organisms)B I O D V E R S T Y
= Variety of life in an area (# of organisms)

6. Does location affect biodiversity?
* Biodiversity Hot Spots! Biodiversity increases towards the equator!

7. 3 types of Biodiversity Genetic Diversity Species Diversity
Ecosystem Diversity

9. Importance of Biodiversity: Direct vs. Indirect Value$
Direct Economic value
Plants and animals provide: Food, clothing, energy, medicine, and shelter
Preserve desirable genes of those who aren’t used directly
Food crops – most crops come from a few species
They lack genetic diversity, so we need the wild variety to increase diversity.
Example: disease resistance in wild, but not food crops

10. Importance of Biodiversity: Direct vs. Indirect Value$
Indirect Economic Value
Plants provide oxygen & remove CO2
Natural processes clean water
Protection against floods & droughts
Indirect because… how you place a value/cost on these??
Water cycle, carbon cycle, wetlands
New York City – create $6 Billion water filtration system or clean wetlands to filter water
natural processes cost less money than technology

11. Importance of Biodiversity
vs.
Aesthetic and scientific value
Camping
Hunting
Research $

12. What role do humans play?
Extinction = state or process of a species or larger group dying out / disappearing
Normal Background Extinction: activity from other organisms, climate change, and natural disasters -> NOT A CONCERN!
1/3 to 2/3 of current species will go extinct in second half of this century -> A CONCERN!
Humans are increasing extinction rates to times normal background extinction rate.

13. But it’s just one species…
Keystone Species = a species that plays a large role in an ecosystem.
Removal of this species will affect entire food web/ecosystem.
Think of it as the one block that drops the Jenga tower!

14. What threatens biodiversity?

15. Concept Map: Example Create a concept map with the following bullet points.
Breakfast
Dairy
Donut
Cereal
Yogurt
Grapes
Baked Goods
Fruits
Scone
Fruit Loops

16. Threats to Biodiversity:
Individually create a concept map of the bullet points. *Read book pages Raise hand when done and I will check it!*
Biodiversity threats
Carolina Parakeets were hunted to extinction because their feathers were used for women’s hats
Highways were installed in rural Indiana forming separate portions of land
Introduced Species
Eutrophication
Construction workers are bulldozing trees and compacting the ground to build a subdivision
Overexploitation
Lionfish are from the Indo-Pacific, but can be found in U.S. waters after being dumped from aquariums
Destruction of Habitat
Acid Precipitation
Heavy metals used in construction enter the water/ the food web
Fragmentation of Habitat
Factories create pollution that harms the habitats around them
River-run off containing fertilizer enters ocean and causes an increase in nutrient availability
Biological Magnification
The pH of Adirondack lake was lowered and therefore many fish could not survive.
Disruption of Habitat