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Table 1 Overview of data collected using autonomous recording devices at two chimpanzee field sites

From: Passive acoustic monitoring reveals group ranging and territory use: a case study of wild chimpanzees (Pan troglodytes)

# of recording months

habitat

chimpanzee population

chimpanzee density (inds/ km2)

# of devices

study area

acoustic signal

Issa valley, Tanzania

 11

savanna-woodland

unhabituated

0.25

10

12 km2

pant hoot

Taï, Côte d’Ivoire

 7

rainforest

habituated

0.97

20

45 km2

drum