Fig. 2
From: Using non-continuous accelerometry to identify cryptic nesting events of Galapagos giant tortoises
Graphical representation of one axis of accelerometer data from a data logger attached to a female Galapagos giant tortoise over three consecutive nights. Bursts of acceleration are 5.4 s in length every 5 min from 16:00 to 00:00 and are plotted sequentially across the X-axis. The Partial Dynamic Body Acceleration corrected for the number of recorded values (cPDBA) of each burst is represented by purple points with values referencing the Y-axis. The threshold cPDBA value determined to separate active from inactive bursts is represented by the horizontal blue line at 0.584. This sample of graphical data includes a confirmed nesting event (panel B), along with the evenings preceding (panel A) and following (panel C) the event