Temporal organization in Pyrrhura lepida lepida / Organização temporal em Pyrrhura lepida lepida
AUTOR(ES)
Andrea Ferrari
DATA DE PUBLICAÇÃO
2008
RESUMO
The behaviours of many animals are organized in the rhythmic pattern as mechanism of the adaptation in a cyclical environment. The goal of this research was describe the daily distribution of the behaviors in Pyrrhura lepida lepida, to characterize your temporal organization. It was observed, individually, the behaviour of four birds that are living at the Zoo of São Paulo, under a constant condition of illumination and temperature. It was given food and water ad libitum and the birds were filmed day and night, continuously which were recorded the duration of the behavioural categories: dislocate, inactivity, body cares, nest care, social interaction, food activity and perch peck, each hour, for three days consecutives. The registers were done with the programme EthoLog 2.2 (Ottoni, 2000). The rhythmic of the behaviours were analyzed through the programme El Temps (Diez-Nogueira, 2005) that utilize spectral analyze for to produce Lomb- Scargle periodograms (significance p 0.05). The Cosinor method (Halberg et al, 1972; Nelson et al, 1979; Benedito Silva, 1988) was utilized to identificate the rhythmics parameters, such the mesor and the acrophase. It was found daily rhythms for the categories: dislocate, inactivity, food activity e perch peck. For nest care, was observed bimodal rhythm for one bird and daily rhythm for two birds e arrhythmicity for one bird. The difference between the phases of reproduction of the animals, maybe has provided that result.The social interaction and body care showed an outline arrhythmicity and it was observed its incident day and night. For the better understanding of the pattern arrhythmicity it `s necessary a deep ecological and functional investigation. The results showed the existence of the behavioral temporal organization and synchronicity among the birds which must be functionally important in the processes of interaction with the environment.
ASSUNTO(S)
aves biological rhythms chronobiology ritmos biológicos pyrrhura lepida lepida etologia animal animal circadian rhythms ritmos circadianos animal ethology cronobiologia birds pyrrhura lepida lepida
