Biology help

profilepauw.seets3

Population Assignment

 

In this assignment, you are going to perform a simulation of factors affecting a population of tuna.

 

Go to the simulation website. http://sepuplhs.org/high/sgi/teachers/fishery_sim.html

Click through the tutorial so that you understand what each part of the screen is showing.

Click on Stage One.

 

The first time, keep the settings as they start (Reproduction, Migration, and Death in the middle). Press Play. You will see over a period of 20 years how the population grows.

 

Press Reset.

 

The second time, change the settings to have a lower Reproduction rate, and a high Migration rate, while keeping the Death rate in the middle. Press Play.  You will see over a period of 20 years how the population grows.

 

Click the Show History box under the graph.  Both your graphs should appear and you can see how they compare.

 

Press Reset.

 

The third time, change the settings to have a lower Reproduction rate, a Migration rate in the middle, and a Death rate higher than the middle. Press Play. You can see the effect on the population over a period of 20 years.

 

You can print or write down your results.

 

Press Clear History and then press Reset.

 

This time, you will change the parameters yourself to determine the effect that Reproduction rate has on the population.  You will likely want to run the simulation with the other two parameters constant, and only changing the Reproduction rate, in order to see the effect of changing Reproduction rate on the population. Again you can show history and print/write your results after running the simulation a few times.

 

Once you have completed the simulation, you can answer the following questions:

 

What does this simulation attempt to teach you?

What is the effect of a high Death rate in the population?

What is the effect of changing Reproduction rates on the fish population?

 

Suppose you are a fish conservation officer for the National Fish and Wildlife Service.  You notice a particular population of fish has been declining in numbers in recent years. You have been asked to write a report detailing some of the factors that might contribute to this population decline.  What are some of the factors that you would cite in your report about this population?

    • 9 years ago
    • 20
    Answer(1)

    Purchase the answer to view it

    blurred-text
    NOT RATED
    • attachment
      factors_affecting_the_population_of_tuna.docx
    • attachment
      factors_affecting_the_population_of_tuna.pdf
    • attachment
      varying_reproduction_rate_at_constant_medium_migration_and_death_rates.pdf
    Bids(1)