Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): K.R. Marlow; K.D. Wiseman; Clara Wheeler; J.E.  Drennan; R.E.  Jackman
    Date: 2016
    Source: Herpetological Review. 47(2): 193-198
    Publication Series: Scientific Journal (JRNL)
    Station: Pacific Southwest Research Station
    PDF: Download Publication  (603.0 KB)


    The ability to identify individual animals is a valuable tool in the study of amphibian population dynamics, movement ecology, social behavior, and habitat use. Numerous methods of marking amphibians have been employed including the use of passive integrated transponder (PIT) tags, radio-transmitters, elastomers, branding, and mutilation techniques such as toe-clipping (Ferner 2007). All of these methods are invasive to amphibians to some degree and can alter their behavior, decrease recapture rates, reduce survivorship, and even cause direct mortality in some cases (Ferner 2007). One of the least invasive methods of identifying individuals is pattern recognition using photography.

    Publication Notes

    • You may send email to to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.


    Marlow, K.R.; Wiseman, K.D.; Wheeler, C.A.; Drennan, J.E.; Jackman, R.E. 2016. Identification of individual foothill yellow-legged frogs (Rana boylii) using chin pattern photographs: a non-invasive and effective method for small population studies. Herpetological Review. 47(2): 193-198.


    Foothill yellow-legged frog, photoidentification, individual identification technique, chin markings

    Related Search

    XML: View XML
Show More
Show Fewer
Jump to Top of Page