SYDNEY, Feb 27, 2020 (BSS/AFP) – Toxic smoke killed endangered Australian
mice far from raging summer bushfires, in what researchers say is the first
confirmed example of animals dying from inhaling fumes outside burning areas.
Charles Sturt University researchers said Australian ‘smoky’ mice — so
called because of their silvery grey fur — began dying in captivity three
days after the first wave of hazardous smoke wafted over the nation’s
capital, Canberra, in January.
“The smoky mice that died developed severe lung disease, with large amounts
of microscopic particles matching the deadly PM2.5 known to be produced by
bushfire smoke,” wildlife health expert Andrew Peters said.
Nine of the mice at the captive breeding facility near Canberra died in the
days that followed, despite the nearest fires burning more than 20 kilometres
(12 miles) away.
Peters said the findings suggested the toll on Australian animals could be
higher than previous scientific estimates, which had put fauna losses in
burned areas at more than one billion creatures.
“Now that we know that bushfire smoke can kill wildlife at large distances
from the fires, it is possible wildlife have been impacted across far greater
areas of Australia than previously thought,” he said.
“The deadly smoke may also have killed animals in the remnant pockets of
unburnt vegetation currently thought to have provided refuge to wildlife.”
The smoky mouse, which is listed as a endangered by the government, live in
small pockets of habitat in southeastern Australia that were badly impacted
by the summer blazes.
It is one of more than 100 threatened species directly impacted by the
months-long bushfire disaster.