IDEAS home Printed from https://ideas.repec.org/h/spr/sprchp/978-94-011-2868-1_32.html
   My bibliography  Save this book chapter

Monitoring Saltwater Crocodiles (Crocodylus Porosus) in the Northern Territory of Australia

In: Wildlife 2001: Populations

Author

Listed:
  • Grahame J. W. Webb

    (G. Webb Pty. Limited)

  • S. Charlie Manolis

    (G. Webb Pty. Limited)

Abstract

Saltwater crocodiles (Crocodylus porosus) were protected in the Northern Territory in 1971, and a General Survey Program Based on spotlight counts was initiated 3 yr later. In the mid-1980s, monitoring needs were reviewed and rationalized. The current monitoring program operates at two levels of resolution. At a local population level, annual spotlight counts are conducted in six river systems, to monitor closely the process of recovery in those systems. Sixteen years of survey data for the Blyth-Cadell River system are analyzed here. Changes in the age structure of the population during the period of recovery are discussed. At a total population level, current monitoring (since 1989) involves an annual helicopter count over 70 sample segments in 68 tidal rivers around the complete coastline. The results of this program to date are presented and discussed. The experience and results obtained in the Northern Territory emphasize the need to clearly establish levels of resolution within which monitoring aims, objectives, and programs are compatible.

Suggested Citation

  • Grahame J. W. Webb & S. Charlie Manolis, 1992. "Monitoring Saltwater Crocodiles (Crocodylus Porosus) in the Northern Territory of Australia," Springer Books, in: Dale R. McCullough & Reginald H. Barrett (ed.), Wildlife 2001: Populations, pages 404-418, Springer.
    • Handle: RePEc:spr:sprchp:978-94-011-2868-1_32
    DOI: 10.1007/978-94-011-2868-1_32
    as

    Download full text from publisher

    To our knowledge, this item is not available for download. To find whether it is available, there are three options:
    1. Check below whether another version of this item is available online.
    2. Check on the provider's web page whether it is in fact available.
    3. Perform a
    for a similarly titled item that would be available.

    More about this item

    Keywords

    ;
    ;
    ;
    ;
    ;

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:spr:sprchp:978-94-011-2868-1_32. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.springer.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.