Figure 2.

Wariness and corticosterone (CORT) concentrations at three sites differing in intensity of predation risk. Blood samples from naive control animals were collected on an average 2 min after capture (i.e. CORT baselines), from naive restrained animals 30 min after capture (i.e. CORT response to restraint in a bag). Chased and previously caught and chased animals were subjected to 15 min of experimental harassment prior to capture. In contrast to naive chased individuals, the latter group had been caught and handled once, three to four weeks before. Dashed lines mark CORT baseline levels (average of the naive control group). All values in means±s.e.m.