Like canaries in mines, frogs in nature are considered an indicator species - their decline signals a loss of life and biodiversity throughout an area.
By 1914 the decline on the near by mines signaled the end of this town.
But auto executives and some economists said the sharp decline did not necessarily signal worse economic times for the nation.
Economists said the decline did not signal a reversal of the recovery but hinted at an underlying weaknesses that could temper the pace of growth.
The dollar dropped sharply but dealers said the decline did not signal an end to the recent upward trend.
Mr. Karmazin said the recent decline did not signal a trend and forecast improved margins this year.
Their decline signaled a further shift in Italian society.
However, the decline of endurance rallying and the rise of the Group B class eventually signalled its demise.
The decline could signal a reduction in production lines and jobs.
The decline from this peak signaled the beginning of the dot-com bubble burst.