Balance: a neglected factor when attaching external devices to penguins
We observed that external attachments on penguins reduced their balance, which may be of as great concern to the individuals as the effect of increased drag. Little penguin Eudyptula minor swimming activity was observed in captivity at the Penguin Parade Phillip Island, Australia. Initially, time-depth recorders (TDRs) were attached centrally to the lower back of […]
Time series analysis of biologging data: autocorrelation reveals periodicity of diving behaviour in macaroni penguins
The nature of how behaviour at one time step influences the next is of great interest to behavioural ecologists, but rarely used for comparisons between animals. Time depth recorders (TDR) and other archival tags have been widely used to infer patterns of diving and foraging. However, while we can extract variables that describe individual dives, […]