Dawn chorus intensity signals habitat resource availability
Evidence
A high value of CR indicates prevalent activity in the dawn chorus and modest acoustic activity after that period. There is evidence (Farina et al., 2015) that a high value of CR characterizes habitats poor in resources where birds that have to spend energy singing at dawn require some time to recover the lost energy by reducing their singing activity. — Bernie Krause and Almo Farina, Using Ecoacoustic Methods to Survey the…, 57
Categorization
- XREF: Directly reinforces the soundscape-as-ecological-indicator framing shared with ‘Reading the Landscape’ disturbance narratives; chorus ratio is a measurable reading of habitat quality. — connects to: Quieter atmosphere at dawn boosts acoustic transmission, favoring chorus timing. — Almo Farina, Soundscape Ecology: Principles,…, 1735; Sound functions as an ecological resource organisms track for survival — Almo Farina, Soundscape Ecology: Principles,…, 248; Open and dense forest canopies create distinct sound atmospheres — Vinson Brown, Reading the Woods: Seeing More in…, 154 (+1 more)
- QUESTION: Worth chasing the Farina et al. 2015 definition of chorus ratio and how it is exactly computed from recordings — could be operationalized in a Soundscape Ethnography field exercise.
Related
- Quieter atmosphere at dawn boosts acoustic transmission, favoring chorus timing. (similarity 0.85)
- Dawn song functions as preventive territorial defense against intruders in winter wrens. (similarity 0.79)
- Dawn signals propagate twenty times more effectively than midday ones (similarity 0.78)
Broader Connections
- Quieter atmosphere at dawn boosts acoustic transmission, favoring chorus timing.
#qualifies(0.85) — Almo Farina, Soundscape Ecology, 1735 - Sound functions as an ecological resource organisms track for survival
#expands(0.80) — Almo Farina, Soundscape Ecology, 248 - Open and dense forest canopies create distinct sound atmospheres
#exemplifies(0.75) — Vinson Brown, Reading the Woods, 154