Early calls for robust long-term time series of amphibian population data, stemming from
discussion following the first World Congress of Herpetology, are now being realized after …

In 1989, it dawned on participants at the First World Congress of Herpetology that observed
declines in amphibian populations might actually be global in scope and unprecedented in …

The amphibian decline problem is complex, and there is no easy solution. I highlight four
major areas of future research that should increase our ability to detect declines, elucidate …

Population losses and extinctions of species are occurring at unprecedented rates, as
exemplified by declines and extinctions of amphibians worldwide. However, studies of …

Since amphibian declines were first proposed as a global phenomenon over a quarter
century ago, the conservation community has made little progress in halting or reversing …

Inventory, monitoring, and experimental studies have been the primary approaches for
documenting and understanding the problem of amphibian declines. However, little …

▪ Abstract Declines and losses of amphibian populations are a global problem with complex
local causes. These may include ultraviolet radiation, predation, habitat modification …

Human impacts obviously have reduced or eliminated many populations of amphibians and
other organisms. Recent reports, however, have suggested that declines and …

Amphibians have declined dramatically in many areas of the world. These declines seem to
have worsened over the past 25 years and amphibians are now more threatened than either …

Reports of malformed amphibians and global amphibian declines have led to public
concern, particularly because amphibians are thought to be indicator species of overall …