Double sampling to assess the accuracy of ground-based surveys of tree hollows in eucalypt woodlands
Ground-based surveys of tree hollows often give poor estimates of hollow abundance in forests. Woodlands have shorter trees and a more open structure than forests, which may make hollows easier to detect. Therefore, one would expect ground-based surveys of tree hollows to be more accurate in woodlands than in forests. We compared hollow counts from ground-based and climbing surveys (double sampling) for four species of Eucalyptus trees in woodlands of central-western New South Wales, Australia:...[Show more]
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