Behavioral Ecology and Sociobiology

, Volume 10, Issue 4, pp 303–306

High altitude echolocation of insects by bats

  • Donald R. Griffin
  • David Thompson
Article

DOI: 10.1007/BF00302821

Cite this article as:
Griffin, D.R. & Thompson, D. Behav Ecol Sociobiol (1982) 10: 303. doi:10.1007/BF00302821

Summary

The orientation sounds of many bats, almost certainly belonging to the genus Tadarida, were recorded at altitudes of 100 to 300 m above the ground by means of an ultrasonic radio microphone. Both in North Queensland, Australia, and in southern Utah and Nevada, USA, bats were often more numerous at 200 to 300 m than near the ground. Rapid increases in pulse repetition rate often indicated that these bats were actively hunting flying insects. The absence of clutter at high altitudes may significantly facilitate the detection and capture of insect prey.

Copyright information

© Springer-Verlag 1982

Authors and Affiliations

  • Donald R. Griffin
    • 1
  • David Thompson
    • 1
  1. 1.The Rockefeller UniversityNew YorkUSA