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Table 2 Summary of the six sites where the dendrochronological sampling for living trees and beaver stumps was performed

From: Invasion of North American beaver (Castor canadensis) in the province of Magallanes, Southern Chile: comparison between dating sites through interviews with the local community and dendrochronology

Site Number of living trees samples Correlation index with the master series Number of living trees used for cross dating Number of samples from stumps Number of samples with a correlation index >0.330
Caleta River 23 0.365 10 16 6
Parrillar Lake 24 0.324 9 16 2
Agua Fresca River 22 0.405 10 20 2
Blanco River 22 0.473 8 18 8
San Pedro River 24 0.397 10 16 7
Yumbel River 20 0.408 10 21 8
Total 135 - 57 107 33
Average 22.5 0.418 9.5 17.8 5.5
  1. Sample numbers and correlation coefficients obtained by cross dating are indicated.