Hi everybody -
Peter Menkhorst said:
"The usual explanation is that the savannah grasslands of the Victorian
Volcanic Plain were a barrier to movement of these missing species [except
the Wombat]. The Volcanic Plain extends to the sea in the Werribee-Avalon
region and on the Bellarine Peninsula preventing forest-dependent species
with little dispersal capability from crossing. "
And maybe the (or some) missing species used to be there before the peak of
the last ice-age, but were squeezed out of shrinking habitats and never
recolonised. Though I seem to remember some argument a while ago about
anecdotal evidence of lyrebirds there.
Cheers,
Hugo
Hugo Phillipps
Queenscliff, Vic
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