Question: The analysis revealed a significant difference in the age since the last disturbance between Forest Region 1 and Forest Region 2, with a p-value of
The analysis revealed a significant difference in the age since the last disturbance between Forest Region 1 and Forest Region 2, with a p-value of <0.001 and a T-test value of -9.338 with 56.208 degrees of freedom. This indicates a statistically significant difference, suggesting that the regions vary in age since the last disturbance. Descriptive statistics showed that Region 1 had larger mean circumferences for hardwoods, while Region 2 had a higher proportion of pines, supporting the prediction that the size of the largest hardwood trees varies significantly between regions. The Fisher's Exact test result of 0.0061 further supports the hypothesis, indicating a significant difference in the proportion of mature hardwoods relative to pines between the two regions. This aligns with the prediction that these proportions would differ based on the age since the last disturbance. The results support the hypothesis that differences in disturbance history influence tree size and species composition. Region 1, with larger hardwoods, likely has older trees, while Region 2, with a higher proportion of pines, suggests younger or more recently disturbed conditions. Using only the largest hardwoods and trees over 80 cm for the Fisher's Exact test focuses on mature individuals, providing insights into long-term forest dynamics rather than short-term fluctuations. This approach helps avoid confounding factors associated with smaller, younger trees that might not yet reflect the forest
Step by Step Solution
There are 3 Steps involved in it
Get step-by-step solutions from verified subject matter experts
