[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
Re: K-T Theories
> This is neat. I hadn't heard about such an effort. How
> many diseases? Just one, or several?
Just one particular disease, one that is particularly virulent.
I forget its name for sure, but it may be something like
> If the latter, then
> we have what amounts to a model of Horner's proposed extinction
> theory. If the rabbits don't die out in that model, which I
> presume is the case, then we might compare followup efforts at
> eradication in order to determine the likelihood that incidental
> effects, like, say, asteroidal impact, might succeed in pushing
> a repressed dinosaur population over the edge.
Well, there are still rabbits in Australia, if that is what you mean.
They are often eradicated *locally*, but they tend to return in
the next population boom.
As far as hunting and such like goes - it turns out to be far less
effective than the diesease at controlling the rabbits. Prior to
the arrival of the disease, rabbits were in a fair way to destroying
the ecology of Australia. I have seen old photographs of literally
millions of rabbits being rounded up and killed.
This whole thing is a fairly classic story of ecological imbalance.
The rabbits were accidentally introduced into Australia (as pets?)
and soon become the most common animal on the continent, due to
a total lack of natural enemies and a nearly complete lack of any
of the common diseases that kept the rabbits in check in their
A great many college texts on ecology cover the story.
The peace of God be with you.