Estimate amount of possums in the park

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In summary, Ursula released 50 possums in the park and then captured a sample of 20 possums, with 4 of them being tagged. Based on this, her estimate for the population of possums in the park is 250, assuming that the tagging was done evenly throughout the park. This is calculated by multiplying the number of tagged possums (4) by 100 and then dividing it by the percentage of tagged possums in the sample (20%). This gives us a total of 250 possums in the park.
  • #1
recoil33
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1. Urula is doing a project and has caughed, tagged and released 50 possums. Estimate the population of the possums in the park. Three nights later she captures a sample.



2. If ursula captures 20 possums and 4 of them are tagged, what would her estimate of the local possum population be?



3.
4/20
= 0.2
0.2 x 100 = 20%

50 x (100/20) = 250
Just want to know on reassurance, I am not sure were to start here!
 
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  • #2


I get 250 as well as an answer.
 
  • #3


Yes, 1/5 of the possums in the sample are tagged so, assuming that she tagged throughout the park and got her sample from throughout the park, the most reasonable assumption is that 1/5 of the possums in the park were tagged. Since she tagged 50 possums, there would be 5(50)= 250 possums in the park.
 

1. How do scientists estimate the amount of possums in a park?

Scientists use a variety of methods to estimate the amount of possums in a park. These methods may include trapping and tagging, radio tracking, camera traps, and population modeling.

2. What is the accuracy of estimating the amount of possums in a park?

The accuracy of estimating the amount of possums in a park depends on the method used and the size of the park. Generally, the larger the park and the more samples taken, the more accurate the estimate will be. However, it is important to note that estimating wildlife populations is not an exact science and there will always be some level of uncertainty.

3. Can the estimated amount of possums in a park change over time?

Yes, the estimated amount of possums in a park can change over time. This can be due to various factors such as natural fluctuations in the population, changes in habitat, and human activities such as hunting or habitat destruction.

4. How do environmental factors affect the estimated amount of possums in a park?

Environmental factors, such as food availability, weather conditions, and habitat quality, can greatly impact the estimated amount of possums in a park. For example, if there is a decrease in food availability, the possum population may decrease as well.

5. Why is it important to estimate the amount of possums in a park?

Estimating the amount of possums in a park is important for several reasons. It can help us understand the health and dynamics of the possum population, which can in turn inform conservation efforts. It can also help us monitor the effects of human activities on wildlife populations and make informed management decisions to ensure their survival.

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