Activity 3 PDF

Preview

Summary

Activity assignment for this course...

Description

Yim 1 Professor Sanders ESCI 1 6 July 2016

Lesson 1:

Plant A

Plant B

Step 1 Prediction: starting population Prediction: ending population Starting population Ending population

Both plants’ populations start at same amount of population It might survive Not survive 5,000 5,000 10,000 0

Lesson 1:

Plant A

Plant B

Herbivore A

Step 2 Prediction: starting

Same with B

Same with A

Started low

population Prediction: ending population

It will decrease

It will increase

They will increase

less than 5000 but

more than 5000.

more than 1000.

not 0 5,000 3,335

5,000 4,998

1,000 2,055

Starting population Ending population

Responses to questions

Yim 2

1. What assumptions does this model make about co-dominance as well as the general terrain of the ecosystem? Answers: There will have more competition as the species developing but the terrain’s conditions can only suitable for one plant, and the others will extinct.

2. Do you find one producer to be dominant? Why might one producer be dominant over another?

Answers: Plant A has more over Plants B, and it was the plant that most suited for the terrain.

3. Does adding the herbivore establish a more equal field? Is one producer still dominant over the other? Why might one producer be dominant over another?

Answers: Adding the herbivore did establish a more equal field because plant B survived and plant A didn’t. However, Plant A was still over Plant B because the terrain likes Plant A better.

4. If the simulation included decomposers, how would your current results change?

Answers: If there is a decomposer in the simulation, then the plants that can benefit from the food it produces will be the dominant.

5. How do producer population numbers with the presence of an herbivore compare to the primary colonizer model?

Answers: Plant B survived because the herbivore was limiting plant A as a dominant. And also plant A as a dominant that decreased its population because the herbivore was in the system.

Yim 3...