Tropical nighttime noise of 60-65 dB disrupts katydid mating entrainment

Evidence

A background noise of 60–65 dB, such as that during the nights in tropical areas, can render the sound signal ambiguous, as studied by Hartbauer et al. (2012), who experimentally masked the acoustic mating signal of Mecopoda elongate, a tropical katydid. Synchronous entrainment was lost at a signal-to-noise ratio of 3 dB when a native noise was used. — Almo Farina, Soundscape Ecology, 1291

Categorization

• XREF: Quantified instance of background-noise masking that connects to receiver-error signaling theory. — connects to: Noise is not unwanted sound but information-poor spectrum useful for site assessment — Almo Farina, Soundscape Ecology: Principles,…, 1240; Ambient noise impairs birds’ territory defense and mate attraction — Gordon Hempton, John Grossmann, One Square Inch of Silence- One Man’s…, 942; Urban noise adaptation can disrupt mating rhythms and increase predation risk — Almo Farina, Soundscape Ecology: Principles,…, 1502 (+5 more)

Broader Connections

• Industrial noise measurably reduces ovenbird mating success #corroborates (0.85) — Gordon Hempton, John Grossmann, One Square Inch of Silence- One Man’s…, 693
• Noise pollution directly reduces birds’ reproductive success #corroborates (0.82) — Gordon Hempton, John Grossmann, One Square Inch of Silence- One Man’s…, 942
• Urban noise adaptation can disrupt mating rhythms and increase predation risk #expands (0.80) — Almo Farina, Soundscape Ecology, 1502
• Traffic noise permanently raises song tonality in red-winged blackbirds #corroborates (0.80) — Almo Farina, Soundscape Ecology, 1384
• Ambient noise impairs birds’ territory defense and mate attraction #corroborates (0.78) — Gordon Hempton, John Grossmann, One Square Inch of Silence- One Man’s…, 942
• Geophony from wind and anthrophony from traffic both suppress animal acoustic communication #corroborates (0.75) — Almo Farina, Soundscape Ecology, 127
• Organisms adapt to natural noise but suffer stress from anthropogenic noise #qualifies (0.72) — Almo Farina, Soundscape Ecology, 1275