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Table 1 Overview of disturbance in the study area

From: Disturbance increases high tide travel distance of a roosting shorebird but only marginally affects daily energy expenditure

  Disturbance source class Disturbance source Disturbance events Disturbed birds/eventa Disturbance frequency (per bird per hour)
Anthropogenic Air force Jet fighter 20 800 0.028
Helicopter 11 230 0.004
Motor vehicle 9 1110 0.018
Recreation Civil airplane 6 680 0.007
Walker 5 630 0.006
  Total 51 700 0.063
Non-anthropogenic Bird Bird of prey 8 990 0.014
Non-predatory bird 14 810 0.020
Unknown Unknown 42 930 0.069
  Total 64 910 0.103
Experimental   Walker 118 720 0.150
  1. aRounded to the nearest 10