Predator Prey Middle School Lesson for Ecology Food Web Unit

Predator Prey Cycles Part 1 Lesson 11

RED SLIDE: These slides contain critical notes and important fill-in the blanks. Please record the important terms in your work bundle. Copyright © 2024 SlideSpark LLC First and last Name Science, Grade, Class

RED SLIDE: These slides contain critical notes and important fill-in the blanks. Please record the important terms in your work bundle. You’ll need these notes to complete the work bundle Copyright © 2024 SlideSpark LLC First and last Name Science, Grade, Class

RED SLIDE: These slides contain critical notes and important fill-in the blanks. Please record the important terms in your work bundle. You’ll need these notes to complete the work bundle and to be successful on the review game. Copyright © 2024 SlideSpark LLC First and last Name Science, Grade, Class

Respect Safety Responsibility Make G ood C hoices Listen to the teacher and others. Please no shout outs. One speaker at a time. Please raise your hand. First, Last, and Always. Focus on Task completion Avoid Distractions Stay Organized Help Others Be Present Never Give Up! Copyright © 2024 SlideSpark LLC Science from Murf LLC

Activity! Indoor Predator Prey Cycle Please record the spreadsheet on the next slide into your journal. 11 x 3

Feeding Simulations Available Sheet.

Generations Rabbits Coyotes 1 2 3 4 5 6 7 8 9 10

Feeding Simulations Available Sheet.

Activity! Predator Prey Cycle Have many (300+ per table group) normal note cards (rabbits) (colored if possible) Have jumbo note cards (different color represent coyotes) Spread 20 rabbits all over large lab table so no two rabbits are touching but they are all close. Toss 5 coyote cards onto large lab table to get the most rabbits that you can from a short distance. If coyote card touches a rabbit then the rabbit is eaten and removed. The coyote reproduces, pick up cards and double them. If coyote misses – It dies and is removed. Record new number after doubling each round All the surviving rabbits reproduce as well and then spread onto the table. Repeat rounds, record statistics on spreadsheet. Visual of activity on the next series of slides.

20 Rabbits Generations 1 2 3 4 5 6 7 8 Rabbits 20 Coyotes

5 Coyotes Generations 1 2 3 4 5 6 7 8 Rabbits 20 Coyotes 5

This one is removed Generations 1 2 3 4 5 6 7 8 Rabbits 20 Coyotes 5

Collect Rabbits Double coyotes Generations 1 2 3 4 5 6 7 8 Rabbits 20 Coyotes 5

Generations 1 2 3 4 5 6 7 8 Rabbits 20 Coyotes 5 8

Double Surviving Rabbits Generations 1 2 3 4 5 6 7 8 Rabbits 20 Coyotes 5 8

Generations 1 2 3 4 5 6 7 8 Rabbits 20 32 Coyotes 5 8

Generations 1 2 3 4 5 6 7 8 Rabbits 20 32 Coyotes 5 8 Double Coyotes

Generations 1 2 3 4 5 6 7 8 Rabbits 20 32 Coyotes 5 8 12 Double Coyotes

Generations 1 2 3 4 5 6 7 8 Rabbits 20 32 Coyotes 5 8 12 Double Surviving Rabbits

Generations 1 2 3 4 5 6 7 8 Rabbits 20 32 52 Coyotes 5 8 12 Double Surviving Rabbits

Generations 1 2 3 4 5 6 7 8 Rabbits 20 32 52 Coyotes 5 8 12

Generations 1 2 3 4 5 6 7 8 Rabbits 20 32 52 70 Coyotes 5 8 12 24

Generations Rabbits Coyotes 1 20 5 2 32 8 3 50 12 4 80 20 5 32 40 6 20 50 7 32 10 8 50 16 9 80 30 10 32 50 Simulated data

Feeding Simulations Available Sheet.

Generations Rabbit and Coyote Populations Over Time

Generations Rabbit and Coyote Populations Over Time Lag Time

Generations Rabbit and Coyote Populations Over Time Lag Time When resources are high the population i ncreases or decreases?

Generations Rabbit and Coyote Populations Over Time Lag Time When resources are high the population i ncreases.

Generations Rabbit and Coyote Populations Over Time Lag Time When resources are high the population i ncreases. Note: Many other limiting factors can influence populations besides predators. Disease, seasonal change, water availability, shelter, pollution, climate change, and much more.

If we repeated our data 20 times. It might look like this.

Feeding Simulations Available Sheet.

Which is a predator, and Which is prey? A B

Which is a predator, and Which is prey? A B Predator

Which is a predator, and Which is prey? A B Predator Prey

Answer! As prey rise, predator rise just behind them. As they rise they overpopulate and many prey get eaten. The predators then die until the prey repopulate. The cycle repeats. Copyright © 2024 SlideSpark LLC

Answer! As prey rise, predator rise just behind them. As they rise they overpopulate and many prey get eaten. The predators then die until the prey repopulate. The cycle repeats. Copyright © 2024 SlideSpark LLC Learn more about predator prey relationships at… http://www.globalchange.umich.edu/globalchange1/current/lectures/predation/predation.html

Predator Prey Simulator (Optional) http://www.shodor.org/interactivate/activities/RabbitsAndWolves/

Limiting Factors: A factor that causes a population to decrease in size. Sunlight Water Temperature Disease Parasites Predators Competition Density Dependent Factors (Other living things) Density Independent Factors (Non-living / Abiotic)

Limiting Factors: A factor that causes a population to decrease in size. Sunlight Water Temperature Disease Parasites Predators Competition Density Dependent Factors (Other living things) Density Independent Factors (Non-living / Abiotic) Any change in limiting Factors such as a distrubance Could change populations And the ecosystem Any change in limiting factors such as a disturbance could change populations and the ecosystem

Limiting Factors: A factor that causes a population to decrease in size. Sunlight Water Temperature Disease Parasites Predators Competition Density Dependent Factors (Other living things) Density Independent Factors (Non-living / Abiotic) Any change in limiting Factors such as a distrubance Could change populations And the ecosystem Any change in limiting factors such as a disturbance could change populations and the ecosystem A volcanic e ruption could cause populations t o change

Limiting Factors: A factor that causes a population to decrease in size. Sunlight Water Temperature Disease Parasites Predators Competition Density Dependent Factors (Other living things) Density Independent Factors (Non-living / Abiotic) Any change in limiting Factors such as a distrubance Could change populations And the ecosystem Any change in limiting factors such as a disturbance could change populations and the ecosystem Flood

Limiting Factors: A factor that causes a population to decrease in size. Sunlight Water Temperature Disease Parasites Predators Competition Density Dependent Factors (Other living things) Density Independent Factors (Non-living / Abiotic) Any change in limiting Factors such as a distrubance Could change populations And the ecosystem Any change in limiting factors such as a disturbance could change populations and the ecosystem Sea-level Rise

Limiting Factors: A factor that causes a population to decrease in size. Sunlight Water Temperature Disease Parasites Predators Competition Density Dependent Factors (Other living things) Density Independent Factors (Non-living / Abiotic) Any change in limiting Factors such as a distrubance Could change populations And the ecosystem Any change in limiting factors such as a disturbance could change populations and the ecosystem Climate Change

Limiting Factors: A factor that causes a population to decrease in size. Sunlight Water Temperature Disease Parasites Predators Competition Density Dependent Factors (Other living things) Density Independent Factors (Non-living / Abiotic) Any change in limiting Factors such as a distrubance Could change populations And the ecosystem Any change in limiting factors such as a disturbance could change populations and the ecosystem Invasive Exotic Species

Limiting Factors: A factor that causes a population to decrease in size. Sunlight Water Temperature Disease Parasites Predators Competition Density Dependent Factors (Other living things) Density Independent Factors (Non-living / Abiotic) Any change in limiting Factors such as a distrubance Could change populations And the ecosystem Any change in limiting factors such as a disturbance could change populations and the ecosystem Hunting / Regulation changes or lack of regs .

You can now complete this question on your bundled homework package.

Video Link (Optional) Predators and Prey http://www.youtube.com/watch?v=vZynrBA91fY

Predator Prey Cycles Part 1 Lesson 11

Predator Prey Middle School Lesson for Ecology Food Web Unit

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Predator Prey Middle School Lesson for Ecology Food Web Unit

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