Paucity of Common Blackbirds: think miners' canary

[John Layton <>]

Martin Butterfield wrote:

 

An introduced species should not be of such concern as native species.  However, it would merit thought if the decline of the introduced species is an early warning of decline in the indigenous species (for example a worsening drought kills off the species that are not as well adapted to drought before the natives start to die).

 

Yeah, good and interesting point. Maybe we should refer to it as the “miners’ canary syndrome.”

 

John Layton
Holt.