Data from: Longitudinal recordings of the vocalizations of immature Gombe chimpanzees for developmental studies

Many researchers are interested in chimpanzee vocal communication, both as
an important aspect of chimpanzee social behavior and as a source of
insights into the evolution of human language. Nonetheless, very little is
known about how chimpanzee vocal communication develops from infancy to
adulthood. The largest dataset of audiorecordings from free-living
immature chimpanzees was collected by the late Hetty van de Rijt-Plooij
and Frans X. Plooij at Gombe National Park, Tanzania (1971–1973). These
recordings have not yet been analysed. Therefore, the most extensive
effort to study the development of chimpanzee vocalizations remains
unfinished. The audiospecimens total over 10 h on 28 tapes, including 20
tapes focusing on 17 specific immature individuals with a total of 1,136
recordings. In order to make this dataset available to more researchers,
the analogue sound recordings were digitized and stored in the Macaulay
Library and the Dryad Repository. In addition, the original notes on the
contexts of the calls were translated and transcribed from Dutch into
English.