ECOSYSTEMS

What is an Ecosystem? Biological

Environment Consists of

Organisms Live in a

particular area Includes Non-

living organisms Physical

Components of the Environment

Organisms Interact

Population

What is a population?All the organismsBelong to same species

Live in the same geographical area

Community

What is a community?Group of interacting species

Share a populated environment

Include living and non-living organisms

Interactions Organisms

interact in various ways May be

beneficial Shelter, Food,

Safety May not be

beneficial Harmful to the

organism Harmful to other organisms

Biotic Factors

Living OrganismsPlantsAnimalsFungiProtistaBacteria

Abiotic Factors Non-living

Organisms Affect living

organisms Environmental

factors such as habitatPond, lake, ocean,

desert, mountain Weather Factors

Temperature, cloud cover, rain, snow hurricanes

What is a Food Chain?

Shows how each living thing gets food

Starts with Sun/plant life

Ends with an animal

Consumers Cannot make

their own food Feed on other

plants/animals Three types of

consumers: Herbivores- Eat

only plants Carnivores- Eat

other animals Omnivores- Eat

both plants and animals

Producers and Decomposers

Producers Plants Use light

energy from sun

Produce food from CO2 and Water

Decomposers Bacteria and

fungi- Feed on decaying matter.

Food Web

Shows all feeding relationships between organisms living in an

ecosystem

More complex the a food chain More accurate then food chains Several food chains joined

together Organisms depend on more

than one species for food

Food Web Cont.

Environmental Changes Land-Use

Change Storm Severity Species

Behavior Population

Growth Rate Evolution

Great Lakes Region

Sand dunes, coastal marshes, rocky shorelines

Lake plain prairies, savannas, forests

Four Seasons Summer and Fall Spring and Winter

Great Beaches

Food Web Assignment

Create your own food web Worth 10 points Must consist of at least 10

organisms Must be Accurate Be creative Have fun with it!

Citations

Ecosystem Photo- Attribution Non-Commercial No Derivs License. March 26, 2009.

Beaver dam Photo- Attribution Non-Commercial No Derivs License. Kent Runge. November 17, 2003.

Frog Photo- Attribution Share-Alike License. Jean Mark-Hero. February 25, 2009.

Tiger Photo- Attribution Non-Commercial No Derivs License. July 25, 2009.

Mountain Photo- Attribution Non-Commercial License. May 9, 2007.

Giraffe Photo- Attribution Share-Alike License. Mbdortmund. May 2008.

Citations

Lion Photo- Attribution Non-Commercial Share-Alike License. September 4, 2009.

Pig Photo- Attribution License. August 26, 2004.

Flower Photo- Attribution Share-Alike License. February 21, 2006.

Fungi Photo- Attribution License. Tornado Photo- Attribution No Derivs

License. May 30, 2004. Beach Photo- Attribution Non-Commercial

No Derivs License. Rich Evenhouse. September 2, 2007.

Citations

Ecosystems. Wikipedia Foundations Inc. October 2, 2010. http://en.wikipedia.org/wiki/Ecosystem

Populations. Wikipedia Foundations Inc. October 2, 2010. http://en.wikipedia.org/wiki/Population

Community. Wikipedia Foundations Inc. October 6, 2010. http://en.wikipedia.org/wiki/Community

Interactions Within Ecosytems. Suite 101. Angela Plumb. November 23, 2001. http://www.suite101.com/article.cfm/science_students/85535

Citations

Biotic and Abiotic Factors. Oracle Think Quest Education Foundation. http://library.thinkquest.org/CR0210243/

Food Chains and Food Webs. Parenting the Next Generation. October 7, 2010. http://www.vtaide.com/png/foodchains.html

Environmental Changes. Great Lakes Information Network. Christine Manninin. June 17, 2009. http://www.great-lakes.net/infocenter/restoration.html