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Essay Available:
Pages:
4 pages/β‰ˆ1100 words
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Check Instructions
Style:
APA
Subject:
Biological & Biomedical Sciences
Type:
Lab Report
Language:
English (U.S.)
Document:
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Date:
Total cost:
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Topic:

Analyze the experiment and answer the questions in the worksheet

Lab Report Instructions:

https://www(dot)learner(dot)org/series/the-habitable-planet-a-systems-approach-to-environmental-science/ecology-lab/
https://biomanbio(dot)com/HTML5Quizzes/ecoquizzes.html


Directions:  On the main page, you will see two Interactive Ecology Labs listed including the name of the Lesson, a Challenge, two Steps and For your consideration.  Click on the Challenge for the first lesson:  The Producers.  Open the Simulator in another tab, and following the directions in the two steps.  Use the data tables below to fill in your results.  Finally, answer the questions posed by each lesson.  Next, do the same for the Food Web Interactive Lab.  Make sure you do the producer lab before the food web lab.


 


 


 


DATA TABLE: ECOLOGY


LESSON 1:  The Producers


 



Lesson 1:


Step 1 

Plant A

Plant B

Prediction:  starting population

 

 

Prediction:  ending population

 

 

Starting population

 

 

Ending population

 

 


 


 



Lesson 1:


Step 2 

Plant A

Plant B

Herbivore A

Prediction:  starting population

 

 

 

Prediction:  ending population

 

 

 

Starting population

 

 

 

Ending population

 

 

 


 


 


Step One Questions:



  1. What assumptions does this model make about co-dominance as well as the general terrain of the ecosystem?


 


 


 



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


 


 


Step Two Questions:



  1.   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?


 


 



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


 


 



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


 


 


Final Questions:


From what you have learned in this module and in the video, how are humans contributing to the creation of a vastly rapid form of succession? In other words, how are we speeding up the effects of the competitive exclusion principle and thereby altering the outcome of that ecosystem's natural succession


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


DATA TABLE: ECOLOGY


LESSON 2:  Food Web


 



Lesson 2:


Step 1


(X, ­, or ¯)

Plant A

Herbivore A

Omnivore A

Top Predator

Prediction

 

 

 

 

Simulation 1

 

 

 

 

Simulation 2

 

 

 

 


 


 



Lesson 2:


Step 2


(X, ­, or ¯)

Plant A

Plant B

Plant C

Herbivore A

Herbivore B

Herbivore C

Omnivore A

Omnivore B

Top


Predator

Prediction

 

 

 

 

 

 

 

 

 

Simulation 1

 

 

 

 

 

 

 

 

 

Simulation 2

 

 

 

 

 

 

 

 

 

Modifications made

 

 

 

 

 

 

 

 

 


 


 


Step One Questions:



  1. Was your prediction correct? How did you arrive at your prediction? What differences were there between your prediction and the simulation?


 



  1. What would happen to this imaginary ecosystem if the producers were to die out?


 


 


 



  1. Did any of the species increase in number? What could account for this increase? Which species decreased in number and what might account for this decrease?


 


 



  1. Which populations would benefit the most from the presence of decomposers?


 


 


Step Two Questions:



  1. Was your prediction correct? How did you arrive at your prediction? What differences were there between your prediction and the simulation?


 


 



  1. Were you able to modify the parameters so that each species survived? Explain how you decided what changes to make.


 


 



  1. Which way does energy flow and how does eating an organism result in energy transfer?


 


 


 


 


Final Questions:



  1. How does a natural ecosystem offer suggestions toward a more economical and eco-friendly human model?


 


 


 



  1. How do humans affect the greater food web? In this model, how could humans who do not live in the ecosystem still manage to alter the flow of energy within the web?


Lab Report Sample Content Preview:

DATA TABLE: ECOLOGY
LESSON 1: The Producers
Lesson 1:
Step 1Plant APlant BPrediction: starting populationBoth plants will be equalPrediction: ending populationBoth will reach equilibrium at the same amount of time, but if one is dominant, the other plant will dieStarting population5,0005,000Ending population10,0000
Lesson 1:
Step 2Plant APlant BHerbivore APrediction: starting populationWill decrease from startingLonger survivalFew only at firstPrediction: ending populationDecreased compared to startingIncreased compared to Plant AWill increase as Plant A decreasesStarting population5,0005,0001,000Ending population3,3345,0002,056
Step One Questions:
What assumptions does this model make about co-dominance as well as the general terrain of the ecosystem?
The more dominant among the species will be the one to survive. It is a competition between the two species and the weaker one will not survive. The terrain also favors only one to survive.
Do you find one producer to be dominant? Why might one producer be dominant over another?
Plant A is the dominant plant and a reason for its survival is the terrain being suitable for this specie. Plant A used up all the resources for itself which made it thrive too. One producer might be dominant because of the terrain and the presence of a herbivore.
Step Two Questions:
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?
Yes, because adding a herbivore balances out the competition between plant A and B, giving more chance for plant B to also survive.
If the simulation included decomposers, how would your current results change?
This will affect the cycle, making it more balanced because benefit will be given to one of the plants
How do producer population numbers with the presence of an herbivore compare to the primary colonizer model?
The competition between the two producers become more balanced compared to the primary colonizer model, where only one plant is dominant resulting to the death of the other.
Final Questions:
From what you have learned in this module and in the video, how are humans contributing to the creation of a vastly rapid form of succession? In other words, how are we speeding up the effects of the competitive exclusion principle and ...
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