Pile-driving injures dolphin ears only within 100 m but alters behavior 50 km away

Evidence

Pile-driving activity during the construction of bridges or offshore windfarms represents an important source of disturbance to water life. In particular, Bailey et al. (2010) have measured the sound produced by pile-driving activity at a distance from 0.1 to 80 km. They found that for the bottlenose dolphins, auditory injury would only have occurred within 100 m from the pile driving, but behavioral modification are expected to occur up to 50 km away. — Almo Farina, Soundscape Ecology, 1350

Categorization

• CANDY: The 100 m vs 50 km asymmetry between injury and behavioral impact is a striking, shareable figure.
• XREF: connects to: Acoustic monitoring detects behavior changes before abundance statistics do. — Almo Farina, Soundscape Ecology: Principles,…, 1416; Technological noise alters animal behavior and threatens species like marine mammals. — Almo Farina, Soundscape Ecology: Principles,…, 9

Broader Connections

• Technological noise alters animal behavior and threatens species like marine mammals. #exemplifies (0.85) — Almo Farina, Soundscape Ecology, 9