Blog Post 4 – Virtual Forest

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According to the sampling strategies I conducted in the virtual forest tutorial the systematic sampling technique had the fastest estimated sampling time at 12 hours and 36 minutes and Haphazard had the slowest estimated sampling time at 13 hours and 2 minutes. All 3 strategies used the area based methods.

Species  Systematic  Random  Haphazard 
Eastern Hemlock  1  14  25% 
Sweet Birch  31  3  56% 
Striped Maple  37  100  242% 
White Pine  42  100  42% 

As species abundance increase sampling accuracy increased or in other words the percentage error is lower.

Based on the results I obtained during the haphazard sampling indicated that one of the rare species percentage of error was 242 percent. The results from the virtual forest had estimated 60 striped maple and the actual was only 17.5. It appears to me that the systematic sampling method produced more accurate estimates than the other two methods.

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