Download - 10 8-13 Intro to Ecology Presentation
Intro to Ecology
Friday’s Test
• Averages:• 901: 86• 902: 85• 903: 92• 904: 85• If you were not here Friday, you have until the end of this
week to make up the test• You can take the test during lunch or after school in 403• RETAKE INFORMATION CAN BE FOUND ON THE TEST
SHEET
The Grey Wolf
• http://dsc.discovery.com/tv-shows/frozen-planet/videos/gray-wolves-chase-down-bison.htm
The Grey Wolf
• 1) What does the Grey Wolf eat in the video?• 2) Name all of the living organisms you see in
this video• 3) How do you think the wolves would do if
they had to hunt alone?
Grey Wolves
• Grey Wolves are incredibly effective hunters• Almost brought to extinction by hunters• Have been re-introduced
Unit Project:
• Your group will develop a plan for introducing an animal species into a particular ecosystem:
• 1) What animals will be affected?• 2) What living and non-living factors are
required for the animal to survive?• 3) How will you convince the community and
government to allow your project?
Grey Wolf
Unit Project
• Our guiding question: What are the costs, benefits, and consequences of introducing a new species into an ecosystem?
Lab Rotations
• 3 Stations• 15 minutes at each station• The copy machine in broken, so you will need
to write your lab answers on your own piece of paper.
• TRY HARD ON THIS LAB – labs are worth more than tests
Abiotic vs Biotic
• http://science.howstuffworks.com/life/30707-assignment-discovery-abiotic-and-biotic-factors-video.htm
Abiotic
• Abiotic factors include all non-living factors that effect and organism. They include:
• -Nitrogen• -Oxygen• -Water• -Sunlight
Biotic
• Biotic factors are all other factors that come from living things. They include:
• -Animals• -Plants• -Fungi• -Wastes
Food Web
• Food webs are visual representations of who eats who in an ecosystem.
• The arrow points at the organism that is doing the eating
Energy Pyramid
• Another visual representation of how species interact in an ecosystem
• Each level is called a trophic level
Energy Pyramid
• Also shows how much energy is being conserved in each trophic level
Energy Pyramid
Different trophic levels of the Pyramid are titled different things Where are humans?
ProducerPrimary Consumer
Secondary Consumer
Tertiary Consumer
Energy Pyramid
• The energy pyramid also shows how much energy is conserved to each level.
• About 10% is conserved in each level
100 kCal
10 kCal1 kCal
.1 kCal
Lab Rotations
• 3 Stations• 15 minutes at each station• The copy machine in broken, so you will need
to write your lab answers on your own piece of paper.
• TRY HARD ON THIS LAB – labs are worth more than tests
Lab Rubric