Survey Methods for Frog Abnormalities on National Wildlife Refuges - CSP3155 OL

This material is part of a self-study course (CSP3155 OL) which anyone can register for to obtain 1 continuing education credit. Simply log on to DOI LEARN and select register. To complete this course, you will need to take a final exam and receive a score of at least 80%.

This material is designed for field technicians and biologists who are sampling wetlands to determine the percentage of abnormal-appearing frogs, primarily at USFWS National Wildlife Refuges. The purpose of this training is to provide instruction on the proper survey methods, handling techniques, and measuring and data gathering protocols. Principles described also have applications for more general amphibian surveys at any location. The manual provided describes the phenomena of frog malformations, contains standard procedures for malformed frog surveys, and provides equipment lists and typical field forms for data collection.  In addition, the training includes the USGS Field Guide to Malformations of Frogs and Toads. The video demonstrates field survey, sample handling, and shipping techniques and describes use of the field forms provided in the manual.

Course Materials:

If you wish to download the materials and video to your hard drive, right click on the links below and select "Save Target As" and then select the location on your hard drive where you want to download the files. You can then open them at any time without returning to this web page.

  1. Course/Reference Manual

  2. USGS Publication - "Field Guide to Malformations of Frogs and Toads

  3. Video of survey and handling techniques (Transcript located in manual Chapter 8)

For questions, contact Karene Motivans at (304) 876-7458 or via email