Figure 4: Short-term variations of the three abdominal temperatures near the end of a deep-diving bout and 1 d before the end of the foraging trip (bird O returns to the chick on 01 March at 16:08 h after 8.2 d at sea). | Nature

Figure 4: Short-term variations of the three abdominal temperatures near the end of a deep-diving bout and 1 d before the end of the foraging trip (bird O returns to the chick on 01 March at 16:08 h after 8.2 d at sea).

From: Hypothermia in foraging king penguins

Figure 4

There are systematic oscillations of the three temperatures which are clearly associated with individual dives. The synchronization of the three temperatures with diving is not precise, which could be due to physical and electronic delays (sampling interval). Long interdive intervals indicate a tendency for temperatures (particularly Tabtop) to fall during a dive and to increase during the time spent at the surface. In all cases, the progressive decrease in temperature is probably due to the fact that the post-dive interval is not long enough to allow for a full recovery. These oscillations and progressive decreases may be due to a diving-induced redistribution of blood at different temperatures from different regions of the body.

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