Table 1 Main behavioural categories of 19 video recorded reindeer attached with tri-axial accelerometers used for model training and corresponding subgroups (behavioural categories) included within each main behaviour
From: Identification of reindeer fine-scale foraging behaviour using tri-axial accelerometer data
Behaviour | General description | Subgroup | Description |
|---|---|---|---|
Grazing | Lower the head to the ground and foraging from the ground. Mouth close to the ground | From ground while standing still or taking one or two steps without moving head position or while walking slowly and foraging from the ground. Mouth positioned close to the ground | |
Browsing high | Moving lips towards a branch in a tree or a high shrub | Standing on all four legs, stretching the neck upwards, head level above shoulder height (minimum 45º head angle) or standing on the hind legs, stretching the neck upwards | |
Browsing low | Moving lips towards a low branch in a tree or a low shrub | Standing on all four legs, moving the head forward or downwards without mouth touching the ground | |
Inactivity (lying) | Belly or side on the ground with folded or extended legs and head in different positions | Resting | Folded legs with head raised from the ground facing forward or with the neck bent on the side |
Sleeping | Head close to ground (on ground or against body) in the same position | ||
Ruminating | Lying with legs folded and belly on the ground, head raised from the ground facing forward or with the neck bent on the side while chewing | ||
Groominga | Lying with legs folded and belly on the ground, head moving against legs or body | ||
Inactivity (standing) | Standing on all four legs without moving forward without chewing | ||
Walking | Moving forward by alternately moving the legs from one point to another | Lifting all four legs in a symmetric movement and moving forward, with mouth up from the ground (not grazing) | |
Trotting | Moving forward by alternately moving the legs from one point to another | Simultaneous movement of hoof paired two by two diagonally (trotting) or three-beat gait faster than the average trot (running) | |
Digging a | Standing and repetitively scratching on ground with one front leg at least two times in a row | ||
Agonistic behaviour a | Pushing away an individual or being pushed away by another individual | ||
Scratching head against tree a | Repeated head movement against branches on trees without having contact with the lips on branch | ||
Missing data a | Animal out of sight | ||
Other a | Undefined |