Article about exotic animal-keeping in the UK :
Wild animals at UK homes include lions, zebras and crocodiles - BBC News
Wild animals at UK homes include lions, zebras and crocodiles - BBC News
I know of no examples where individually released pets have become invasive species.
do you mean the paper by Collins, Freeman and Snow from 2008? That's the one to which reptile keepers always seem to refer. I'm assuming you haven't actually read the paper. It does not say that the results prove the population is descended from a warehouse of snakes escaping in Hurricane Andrew - that is a story made up by people using it to back up an existing story.The source of the small burm population in extreme south florida is the result of a hurricane destroying a warehouse with a freshly imported baby burmese pythons in it in I think 1992 (hurricane andrew) dna testing recently proved this. it's extremely unlikely that is someone is irresponsible enough to release a pet, that they would make their way out to the everglades to do it, let alone it happening on a large enough scale to create a self sustaining population.
so the population has little genetic diversity, meaning they are from a small amount of founding stock, and a suitable number of founding stock escaped around the time that seems to match up (and it's not a story that's made up either, it happened) so while it might not definitely be able to say they are from those animals (because we don't have the dna profiles of those original animals) it sure as hell points in that direction.do you mean the paper by Collins, Freeman and Snow from 2008? That's the one to which reptile keepers always seem to refer. I'm assuming you haven't actually read the paper. It does not say that the results prove the population is descended from a warehouse of snakes escaping in Hurricane Andrew - that is a story made up by people using it to back up an existing story.
What it actually says is only that the population has little genetic diversity, suggesting all animals are descended from few founders, apart for a few individuals which were not related. Then it provides some possibilities to explain the results.
The pdf is here: http://usark.org/wp-content/uploads/2012/05/FloridaBurmGenetics.pdf
two points can be made here.so the population has little genetic diversity, meaning they are from a small amount of founding stock, and a suitable number of founding stock escaped around the time that seems to match up (and it's not a story that's made up either, it happened) so while it might not definitely be able to say they are from those animals (because we don't have the dna profiles of those original animals) it sure as hell points in that direction.
The DNA study emphatically does not prove this. At best it is one possibility. You can jump to that conclusion if you like, but that isn't how proof works.Teddy Dalton said:The source of the small burm population in extreme south florida is the result of a hurricane destroying a warehouse with a freshly imported baby burmese pythons in it in I think 1992 (hurricane andrew) dna testing recently proved this.