Natural Differences between the Dawn and Dusk Choruses of a Neotropical Songbird and Their Relationship to Its Response to Urbanization DOI Open Access

Noelia Bustamante,

Álvaro Garitano‐Zavala

Published: Jan. 11, 2024

Urbanization in one of the more important phenomena affecting biodiversity Anthropocene. Some organisms can cope with urban challenges, and changes birds’ acoustic communication have been widely studied. Although timing daily organization previously reported, there is a significant gap regarding possible variations song structure between dawn dusk choruses. Considering that urbanization potentially imposes different soundscapes for choruses, we postulate two hypotheses: i) are “natural” parameters ii) such within city will vary response to noise. We studied extra-urban populations Chiguanco Thrush La Paz, Bolivia, measuring their choruses: length, sound pressure, minimum, maximum, range dominant frequency, proportion songs produced. The results support our natural conditions were louder larger bandwidths, city, frequency entire rises along increasing amplitude. Understanding structural choruses could allow better interpretation how some bird species challenges.

Language: Английский

Natural Differences between the Dawn and Dusk Choruses of a Neotropical Songbird and Their Relationship to Its Response to Urbanization DOI Open Access

Noelia Bustamante,

Álvaro Garitano‐Zavala

Published: Jan. 11, 2024

Urbanization in one of the more important phenomena affecting biodiversity Anthropocene. Some organisms can cope with urban challenges, and changes birds’ acoustic communication have been widely studied. Although timing daily organization previously reported, there is a significant gap regarding possible variations song structure between dawn dusk choruses. Considering that urbanization potentially imposes different soundscapes for choruses, we postulate two hypotheses: i) are “natural” parameters ii) such within city will vary response to noise. We studied extra-urban populations Chiguanco Thrush La Paz, Bolivia, measuring their choruses: length, sound pressure, minimum, maximum, range dominant frequency, proportion songs produced. The results support our natural conditions were louder larger bandwidths, city, frequency entire rises along increasing amplitude. Understanding structural choruses could allow better interpretation how some bird species challenges.

Language: Английский

Citations

1