Ecological Sources of Selection on Avian Sounds

@article{Morton1975EcologicalSO,
  title={Ecological Sources of Selection on Avian Sounds},
  author={E. Morton},
  journal={The American Naturalist},
  year={1975},
  volume={109},
  pages={17 - 34}
}
  • E. Morton
  • Published 1975
  • Biology
  • The American Naturalist
This study describes selection derived from habitat acoustics on the physical structure of avian sounds. Sound propagation tests were made in forest, edge, and grassland habitats in Panama to quantify pure tone and random noise band sound transmission levels. The sounds of bird species in each habitat were analyzed to determine the emphasized frequency, frequency range, and sound type (whether pure tonelike or highly modulated). Forest habitats differ from grass and edge in that a narrow range… Expand
A comparison of sound propagation and song frequency in temperate marsh and grassland habitats
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Analysis of recorded songs of seven grassland and six marsh species indicated that minimum and emphasized frequency were significantly lower in songs of marsh birds, consistent with the ‘sound window' hypothesis of Morton. Expand
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  • H. Slabbekoorn
  • Environmental Science, Medicine
  • The Journal of the Acoustical Society of America
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Miscellaneous Collection 145:1-8
  • 1971
Un exemple de l'influence du milieu sur les emissions vocales des oiseaux: revolution de chants en forget equatoriale
  • Terre et Vie
  • 1971
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