This comes on top of
the protracted millennium drought of 1996 to 2010, the effects of which are
still being felt where kookaburras and superb fairy wrens declined and have not
properly recovered since. As reported in today’s The Age, ecologist Dr Dale
Nimmo has said more than half our bird species experienced a substantial
reduction in their population.
This decline affects
the broader ecosystem as birds play a key function as pollinators and pest
controllers.
In a paper co-written by
Dr Nimmo, he and his colleagues outline the importance for species of adequate
tree cover which enhances their resilience in tough times such as during a
drought. The more tree cover you have, according to Dr Nimmo, the more birds
are able to survive a drought.
In the report the
authors say that woodland bird communities in landscapes with larger areas of
tree cover retained a larger proportion of their species richness during the
Millennium Drought. Vegetation cover can influence the resistance, resilience
and stability of species in an extreme weather event, events that are becoming more
common as a result of climate change.
The impact of climate change, with more droughts and other extreme weather events, makes it all the more important that we protect, restore and enhance Australia’s native vegetation.
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