Amphibians in Decline: Canadian Studies of a Global Problem

by David Green (ed.)

1997. Chapters by 53 authors dealing with population dispersal and fluctuations, genetic diversity, monitoring of natural populations, as well as effects of temperature, acidity, pesticides, UV light, forestry practices, and disease.
This book constitutes the report to the IUCN Declining Amphibian Populations Task Force (DAPTF) from the Canadian Declining Amphibian Population Working Group (DAPCAN). The 29 refereed chapters from 53 authors include demographic and population studies, status reports, descriptions of methods (including 2 analyses of calling amphibian surveys), and studies or reviews of causes of amphibian declines, including pesticides, global change and UV radiation, and disease. A comprehensive appendix describes status of all 47 species of Canadian amphibians and includes photographs of most of them.

"The original DAPTF charge to the regional working groups was to ascertain whether amphibian populations were in decline in each working group region, and if so, to identify the suspected causes. No suggestions for structure or function of the working groups were at first supplied. Thus working groups were on their own to determine how amphibian declines could be documented and to determine what factors might be involved. In reality, the definition and documentation of amphibian declines is not at all straightforward. To its credit, DAPCAN struggled with these basic questions. This publication provides valuable case history information on how to approach studies of amphibian populations and, importantly, offers recommendations for the kinds of studies that are most useful in documenting amphibian declines. DAPCAN has been extremely successful and effective in its role as a DAPTF regional working group. This publication, the fulfillment of DAPCAN's mandate from DAPTF is an example of their success and sets a high standard for all subsequent DAPTF working group reports." - W. Ron Heyer, DAPTF Chair (from the Foreword).
xiv, 338 p. Paperbound. ISBN 978-0916984-40-0.

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