New Zealand Plant Protection 54 (2001): 71-75
Calibration of possum density estimates from raised leg-hold traps
M. Thomas and J.A. Brown
ABSTRACT
We undertook field trials to compare differences between ground- and raised-set leg-hold traps to measure population abundance of the brushtail possum (Trichosurus vulpecula). We discuss the observed differences in trap catch rates and the use, and potential misuse, of a calibration index to ‘correct’ the raised-set estimates so they can be compared with the ground-set estimates.
Keywords: possums, Trichosurus vulpecula, monitoring, trapping, vertebrate pest control.
Copyright © 2001 New Zealand Plant Protection Society (Inc.).
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© 2007 New Zealand Plant Protection Society (Inc.)