期刊
REVISTA BRASILEIRA DE ZOOLOGIA
卷 23, 期 1, 页码 202-210出版社
SOC BRASILEIRA ZOOLOGIA, UNIV FEDERAL PARANA
DOI: 10.1590/S0101-81752006000100012
关键词
Aves; naive birds; novel objects; personality test; reintroduction
类别
The shy-bold continuum is an axis of behavioural variation for some species, but the consequences of Shyness and boldness in antipredatory behaviour is unknown. Bold animals have the tendency to be predated First after release in comparison to shy animals, who naturally avoid the predators. Antipredatory training has been used to enhance the defence behaviours of naive animals by various researchers around the world. For greater rheas, Rhea americana (Linnaeus, 1758), this kind of study is pioneer. In this study we have investigated if there are relationships between personality and performance of greater rheas in antipredatory training. We also investigated if the training procedures influenced the behaviour of the birds when presented to novel objects. Fifteen zoo-borne greater rheas were Studied and 16 personality tests were run, being eight before the application of antipredator training, and eight after the training. We presented to the birds four novel objects (ball, box, bag and person) and recorded their behaviour and the distance of the birds in relation to the objects. Results showed that the birds behave boldly before training and shyly after it. The antipredator training modified significantly the behaviour of the rheas, making them more careful about novel situations. Personalities affected the behaviour of the birds during antipredator training. The study of the animal personalities can be an useful tool in reintroduction programs since it helps to choose the animals with the highest chance of survival to reintroduce.
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