Skip to content Skip to navigation
University of Warwick
  • Study
  • |
  • Research
  • |
  • Business
  • |
  • Alumni
  • |
  • News
  • |
  • About

University of Warwick
Publications service & WRAP

Highlight your research

  • WRAP
    • Home
    • Search WRAP
    • Browse by Warwick Author
    • Browse WRAP by Year
    • Browse WRAP by Subject
    • Browse WRAP by Department
    • Browse WRAP by Funder
    • Browse Theses by Department
  • Publications Service
    • Home
    • Search Publications Service
    • Browse by Warwick Author
    • Browse Publications service by Year
    • Browse Publications service by Subject
    • Browse Publications service by Department
    • Browse Publications service by Funder
  • Help & Advice
University of Warwick

The Library

  • Login
  • Admin

Using static acoustic monitoring to describe echolocation behaviour of Heaviside’s dolphins (Cephalorhynchus heavisidii) in Namibia

Tools
- Tools
+ Tools

Leeney, R. H., Carslake, David and Elwen, Simon H. (2011) Using static acoustic monitoring to describe echolocation behaviour of Heaviside’s dolphins (Cephalorhynchus heavisidii) in Namibia. Aquatic Mammals, Vol.37 (No.2). pp. 151-160. doi:10.1578/AM.37.2.2011.151

Research output not available from this repository, contact author.
Official URL: http://dx.doi.org/10.1578/AM.37.2.2011.151

Request Changes to record.

Abstract

Static acoustic monitoring is a cost-effective, low-effort means of gathering large datasets on echolocation click characteristics and habitat use by odontocetes. Heaviside's dolphins (Cephalorhynchus heavisidii) were monitored using an acoustic monitoring unit, the T-POD, in July 2008 at a site of known high abundance for this species in Walvis Bay, Namibia. The T-POD successfully detected clicks from Heaviside's dolphins, and these clicks were detected in the 120 to 140 kHz frequency range. A distinct diel pattern to the hourly mean inter-click interval was observed, with higher values during daylight hours than at night, suggesting that click trains are produced at faster rates at night time. There was no apparent diel pattern in the proportion of buzz trains produced, however. A diel pattern in click activity was observed, with many more detection-positive minutes per hour recorded between dusk and dawn, and vocalization activity dropping to low levels in the middle of the day. This corresponded with visual observations made on abundance of dolphins in the study area. These results suggest that Heaviside's dolphins use this site primarily during the night. Static acoustic monitoring proved to be an effective technique for monitoring patterns of habitat use by Heaviside's dolphins.

Item Type: Journal Article
Subjects: Q Science > QL Zoology
Divisions: Faculty of Science > Life Sciences (2010- ) > Biological Sciences ( -2010)
Library of Congress Subject Headings (LCSH): Dolphins -- Monitoring -- Namibia, Echolocation (Physiology)
Journal or Publication Title: Aquatic Mammals
Publisher: Western Illinois University Regional Center
ISSN: 01675427
Official Date: 2011
Dates:
DateEvent
2011Published
Volume: Vol.37
Number: No.2
Page Range: pp. 151-160
DOI: 10.1578/AM.37.2.2011.151
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Funder: British Ecological Society (BES), Mohamed bin Zayed Species Conservation Fund, Namibian Coast Conservation and Management Project (NACOMA), Nedbank (Swaziland) Limited, Rufford Small Grants Foundation, Namibian Nature Foundation (NNF), Namibia. Ministry of Fisheries and Marine Resources (MFMR)

Data sourced from Thomson Reuters' Web of Knowledge

Request changes or add full text files to a record

Repository staff actions (login required)

View Item View Item
twitter

Email us: wrap@warwick.ac.uk
Contact Details
About Us