Variations in respiratory muscle activity during echolocation when stationary in three species of bat (Microchiroptera : Vespertilionidae)

W C Lancaster, J R Speakman

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Echolocating bats use respiratory muscles to power the production of biosonar vocalisations. The physical characteristics of these calls vary among species of bat, and variations also exist in the timing and patterns of respiratory muscle recruitment during echolocation. We recorded electromyograms from the respiratory muscles of three species of bat (Family Vespertilionidae) while the animals vocalised from stationary positions. Activity was recorded consistently from the lateral abdominal muscles (internal abdominal oblique and transversus abdominis) from all calling bats, but we found much variation within and among species. Bats in the family Vespertilionidae devoted longer periods of expiratory muscle activity to each call than did the mormoopid bat Pteronotus parnellii. These differences correlate negatively with the duration of calls. We suggest that morphological adaptations in some bats may facilitate the economic production of echolocation calls at rest.

Original languageEnglish
Pages (from-to)4185-4197
Number of pages13
JournalJournal of Experimental Biology
Volume204
Publication statusPublished - 2001

Keywords

  • bat
  • Eptesicus serotinus
  • Pipistrellus pygmaeus
  • Myotis myotis
  • echolocation
  • respiration
  • Vespertilionidae
  • vocalisation
  • electromyography
  • FUNCTIONAL-ANATOMY
  • PTERONOTUS-PARNELLII
  • TRIANGULARIS-STERNI
  • INSECTIVOROUS BATS
  • ANTROZOUS-PALLIDUS
  • PIPISTRELLE BATS
  • FLYING BATS
  • AIR-FLOW
  • FLIGHT
  • VOCALIZATION

Cite this

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title = "Variations in respiratory muscle activity during echolocation when stationary in three species of bat (Microchiroptera : Vespertilionidae)",
abstract = "Echolocating bats use respiratory muscles to power the production of biosonar vocalisations. The physical characteristics of these calls vary among species of bat, and variations also exist in the timing and patterns of respiratory muscle recruitment during echolocation. We recorded electromyograms from the respiratory muscles of three species of bat (Family Vespertilionidae) while the animals vocalised from stationary positions. Activity was recorded consistently from the lateral abdominal muscles (internal abdominal oblique and transversus abdominis) from all calling bats, but we found much variation within and among species. Bats in the family Vespertilionidae devoted longer periods of expiratory muscle activity to each call than did the mormoopid bat Pteronotus parnellii. These differences correlate negatively with the duration of calls. We suggest that morphological adaptations in some bats may facilitate the economic production of echolocation calls at rest.",
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author = "Lancaster, {W C} and Speakman, {J R}",
year = "2001",
language = "English",
volume = "204",
pages = "4185--4197",
journal = "Journal of Experimental Biology",
issn = "0022-0949",
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TY - JOUR

T1 - Variations in respiratory muscle activity during echolocation when stationary in three species of bat (Microchiroptera : Vespertilionidae)

AU - Lancaster, W C

AU - Speakman, J R

PY - 2001

Y1 - 2001

N2 - Echolocating bats use respiratory muscles to power the production of biosonar vocalisations. The physical characteristics of these calls vary among species of bat, and variations also exist in the timing and patterns of respiratory muscle recruitment during echolocation. We recorded electromyograms from the respiratory muscles of three species of bat (Family Vespertilionidae) while the animals vocalised from stationary positions. Activity was recorded consistently from the lateral abdominal muscles (internal abdominal oblique and transversus abdominis) from all calling bats, but we found much variation within and among species. Bats in the family Vespertilionidae devoted longer periods of expiratory muscle activity to each call than did the mormoopid bat Pteronotus parnellii. These differences correlate negatively with the duration of calls. We suggest that morphological adaptations in some bats may facilitate the economic production of echolocation calls at rest.

AB - Echolocating bats use respiratory muscles to power the production of biosonar vocalisations. The physical characteristics of these calls vary among species of bat, and variations also exist in the timing and patterns of respiratory muscle recruitment during echolocation. We recorded electromyograms from the respiratory muscles of three species of bat (Family Vespertilionidae) while the animals vocalised from stationary positions. Activity was recorded consistently from the lateral abdominal muscles (internal abdominal oblique and transversus abdominis) from all calling bats, but we found much variation within and among species. Bats in the family Vespertilionidae devoted longer periods of expiratory muscle activity to each call than did the mormoopid bat Pteronotus parnellii. These differences correlate negatively with the duration of calls. We suggest that morphological adaptations in some bats may facilitate the economic production of echolocation calls at rest.

KW - bat

KW - Eptesicus serotinus

KW - Pipistrellus pygmaeus

KW - Myotis myotis

KW - echolocation

KW - respiration

KW - Vespertilionidae

KW - vocalisation

KW - electromyography

KW - FUNCTIONAL-ANATOMY

KW - PTERONOTUS-PARNELLII

KW - TRIANGULARIS-STERNI

KW - INSECTIVOROUS BATS

KW - ANTROZOUS-PALLIDUS

KW - PIPISTRELLE BATS

KW - FLYING BATS

KW - AIR-FLOW

KW - FLIGHT

KW - VOCALIZATION

M3 - Article

VL - 204

SP - 4185

EP - 4197

JO - Journal of Experimental Biology

JF - Journal of Experimental Biology

SN - 0022-0949

ER -