Flukes EB, Johnson CR, Ling SD
Forming sea urchin barrens from the inside out: an alternative pattern of overgrazing
MEPS 464:179-194 | Full text in pdf format

Supplementary Video:
Nocturnal time-lapse footage of Centrostephanus rodgersii movement on widespread boulder and widespread flat-rock barrens. Each section of footage spans 12 h from 19:30 to 07:30, with photographs taken at 5 min intervals. Inset at bottom right shows simultaneous tracking of individual sea urchins appearing in the main video frame (resized for clarity)

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