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Neckband or backpack? Differences in tag design and their effects on GPS/accelerometer tracking results in large waterbirds
Andrea Kölzsch1,2,3 *, Marjolein Neefjes1, Jude Barkway4, Gerhard J.D.M. Müskens5, Frank van
Langevelde6, Willem F. de Boer6, Herbert H.T. Prins6, Brian H. Cresswell4 and Bart A. Nolet1
(a) Backpack tag
Behaviour Feed Preen Rest Vigilance Walk
Feed 280 31 64 6 14 Preen 3 62 2 0 0 Rest 38 9 136 19 0 Vigilance 1 2 15 88 6 Walk 2 4 0 12 40 (b) Neckband tag Feed 166 16 9 16 8 Preen 5 17 0 0 0 Rest 0 1 27 5 0 Vigilance 18 2 44 175 10 Walk 0 0 0 0 8
Table A1. Success rates of behaviour classification trees for (a) backpack tag accelerometer statistics
and (b) neckband tag accelerometer statistics. Columns indicate observed behaviour, rows predicted behaviour. The diagonal shows correct behavioural classifications.