Degradation of Great Tit (Parus Major) Song Before And After Foliation: Implications for Vocal Communication in a Deciduous Forest

By Sandra H Blumenrath, Torben Dabelsteen. 2004

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Song amplitude affects territorial aggression of male receivers in chaffinches (2011, background): “, territory establishment, several weeks before egg laying) and there was no foliage, which allowed good visibility of the birds and minimal sound absorption and scattering (Blumenrath and Dabelsteen 2004).”
Avian soundscapes and cognitive landscapes: theory, application and ecological perspectives (2011, background): “The relationship between the structure of vegetation and type of bird sounds has long been known and proved experimentally (e.g., Blumenrath and Dabelsteen 2004), but few investigations have considered bird soundscape turnover in terms of changes of vegetation along the succession or changes of…”
Habitat structure and the evolution of bird song: a meta-analysis of the evidence for the acoustic adaptation hypothesis (2007, background): “For bird songs, degradation is greater in habitats with dense foliage (Blumenrath & Dabelsteen 2004), and an excess of degradation may reduce, or even prevent, the transfer of information between the sender and the receiver (Fotheringham & Ratcliffe 1995; Fotheringham, Martin & Ratcliffe 1997;…”