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Selectivity in Buttress Drumming Tree Properties Among Chimpanzees (Pan troglodytes schweinfurthii) of the Waibira Community in Budongo Forest, Uganda.
Am J Primatol
January 2025
Wild Minds Lab, School of Psychology and Neuroscience, University of St Andrews, Fife, United Kingdom.
Wild chimpanzees drum on tree buttresses during dominance displays and travel, generating low-frequency sounds that are audible over distances of more than 1 km. Western chimpanzees (Pan troglodytes verus) in the Nimba Mountains of Guinea selectively choose trees and buttresses when drumming, potentially based on their resonant properties, suggesting that these chimpanzees are optimizing their drumming signals. We investigated whether male eastern chimpanzees (Pan troglodytes schweinfurthii) from the Waibira community in the Budongo Forest, Uganda, also show preferences in tree and buttress choice, exploring whether selectivity is a species-wide feature.
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Front Zool
September 2024
Institute of Zoology, University of Veterinary Medicine Hannover, Bünteweg 17, 30559, Hannover, Germany.
Drumming is a non-vocal auditory display producing airborne as well as seismic vibrations by tapping body extremities on a surface. It is mostly described as an alarm signal but is also discussed to signal dominance or mating quality. To clarify the function of drumming in Mongolian gerbils (Meriones unguiculatus), we compared the occurrence of drumming during predator, opposite-sex and same-sex encounters.
View Article and Find Full Text PDFTurning up the heat: Effects of temperature on agonistic acoustic communication in the two-spotted goby (Pomatoschistus flavescens).
Mar Environ Res
November 2024
Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Portugal; MARE - Marine and Environmental Sciences Centre / ARNET - Aquatic Research Network, Faculdade de Ciências, Universidade de Lisboa, Portugal. Electronic address:
Acoustic communication is linked to fitness traits in many animals, but under the current scenario of global warming, sound signals can be affected by rising temperatures, particularly in ectothermic organisms such as fishes. This study examines the effect of water temperature in acoustic communication in the two-spotted goby, Pomatoschistus flavescens. To address this, we looked at the effect of different temperatures on the acoustic features of drums produced by males during territorial defence and related it with their auditory sensitivity.
View Article and Find Full Text PDFDevelopment of sound production in Danionella cerebrum.
J Exp Biol
August 2024
Einstein Center for Neurosciences, Charité - Universitätsmedizin Berlin, 10117Berlin, Germany.
Acoustic signalling, integral to intraspecific communication and reproductive behaviour, undergoes notable changes during an animal's ontogenetic development. The onset and progression of this maturation in fish remains poorly understood. Here, we investigated the ontogeny of acoustic communication in the miniature teleost Danionella cerebrum, one of the smallest known vertebrates and an emerging model organism.
View Article and Find Full Text PDFErnst Weber stated in 1819, based on dissections, that the swimbladder in the European wels (, Siluridae) and related cyprinids serves as an eardrum and that the ossicles connecting it to the inner ear function as hearing ossicles similar to mammals. In the early 20th century, K. von Frisch showed experimentally that catfishes and cyprinids (otophysines) indeed hear excellently compared to fish taxa lacking auxiliary hearing structures (ossicles, eardrums).
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