TY - JOUR
T1 - Increased exposure to predators increases both exploration and activity level in Brachyrhaphis episcopi
AU - Archard, G. A.
AU - Braithwaite, V. A.
PY - 2011/2
Y1 - 2011/2
N2 - Two temperament traits, tendency to explore and activity level, were measured in a tropical poeciliid fish, the Panamanian bishop Brachyrhaphis episcopi. Open-field arena tests were used to quantify how predation pressure shapes activity levels and exploratory behaviours. Fish behaviour differed between high and low-predation populations. Fish that experienced higher levels of predation were both more explorative and more active. There were also some individual differences within populations; fish varied in their levels of exploration and activity in a novel open arena, but these differences were not related to sex or size. Together with previous studies on this species, these results indicate that there is a behavioural syndrome associated with predation pressure. Fish from high-predation populations are bolder, more explorative and more active than those from low-predation populations.
AB - Two temperament traits, tendency to explore and activity level, were measured in a tropical poeciliid fish, the Panamanian bishop Brachyrhaphis episcopi. Open-field arena tests were used to quantify how predation pressure shapes activity levels and exploratory behaviours. Fish behaviour differed between high and low-predation populations. Fish that experienced higher levels of predation were both more explorative and more active. There were also some individual differences within populations; fish varied in their levels of exploration and activity in a novel open arena, but these differences were not related to sex or size. Together with previous studies on this species, these results indicate that there is a behavioural syndrome associated with predation pressure. Fish from high-predation populations are bolder, more explorative and more active than those from low-predation populations.
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U2 - 10.1111/j.1095-8649.2010.02880.x
DO - 10.1111/j.1095-8649.2010.02880.x
M3 - Article
C2 - 21284637
AN - SCOPUS:79551564895
SN - 0022-1112
VL - 78
SP - 593
EP - 601
JO - Journal of Fish Biology
JF - Journal of Fish Biology
IS - 2
ER -