On Thu, Nov 16, 2006 at 04:01:17PM +1100, Greg wrote:
> Some interesting, and disturbing footage. I am sure that it is a Swamp
> Wallaby. It is interesting that Foxes are lethal to Parma Wallabies
> but Parma Wallabies co-exist with Dingoes. Dingoes would prey on the
> Parma Wallabies but they have a broad diet and so don't place too much
> pressure on any one species.
Red Foxes are extreme generalists - they have a broader diet than Dingos
so that doesn't explain why foxes might have a larger effect on Parmas -
if indeed they do. A failed reintroduction seems to be the only direct
evidence. With foxes ubiquitous, hopefully Parmas are managing some
degree of coexistance.
Although the particular Black (Swamp) Wallaby in the video may not
appreciate it they certainly co-exist well with foxes - given the Black
Wallaby's apparent abundance maybe foxes increase their density by
reducing competition of smaller herbivores (like Parmas).
Andrew
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