IIMYC   23581
INSTITUTO DE INVESTIGACIONES MARINAS Y COSTERAS
Unidad Ejecutora - UE
artículos
Título:
The Effect of Age and Sex on Object Exploration and Manipulative Behavior in a Neotropical Raptor, the Chimango Caracara, Milvago chimango
Autor/es:
BIONDI, LAURA MARINA; GUIDO, JORGELINA; MADRID, ENRIQUE; BO, MARÍA SUSANA; VASSALLO AI
Revista:
ETHOLOGY
Editorial:
WILEY-BLACKWELL PUBLISHING, INC
Referencias:
Lugar: Londres; Año: 2013 vol. 119 p. 221 - 232
ISSN:
0179-1613
Resumen:
We studied object exploration and manipulative behavior in wild-caught
Chimango Caracaras (Milvago chimango), an opportunistic and generalist
raptor species, in relation to age and sex differences. Each bird was
presented with six objects. We then recorded the latencies to approach
and first contact with the objects, the number of objects explored, and the
number of exploration events performed on each object. Age influenced
the tendency to explore in M. chimango. Compared with adults, juveniles
were more likely to explore the objects, approaching and contacting them
more quickly. The number of objects explored was also higher in young
than adult birds. Both age classes used a variety of manipulative behaviors
to explore the objects, some of which have been described as play in
others studies. Sex did not affect an individual?s likelihood to explore or
the number and frequency of manipulative behaviors used during object
exploration. The tendency for both young and adult birds to explore and
manipulate objects that not resemble prey is likely to be a distinct
advantage for a generalist species like M. chimango which must cope with a
high diversity of modified environments.