I wasn't accusing you!! I was accusing the author of the executive
summary that I thought you were quoting directly. So I made a
typing mistake for "study". This mistake makes no
difference to the point about the omission of vertebrates from the
list. Not certain why you automatically thought it was you that was
misleading ...
At 06:30 PM 8/01/2013, Jeremy O'Wheel wrote:
I note too that I was quoting
the "executive summary" of the study, rather than calling it
some kind of "executive study" as Frank misquotes me. I
won't endeavour to make a comparably rude accusation as to his
motivations in that mistake.
On Tue, Jan 8, 2013 at 8:44 PM, Jeremy O'Wheel
<>
wrote:
- Ah sorry, rather than being "deliberately misleading" that
was just my error in skim reading the report, apologies. I believe
the report as a whole supports what I said earlier, but I'm not going to
re-read the whole thing.
- Jeremy
- On Tue, Jan 8, 2013 at 8:39 PM, Frank O'Connor
<>
wrote:
- I confess that I have not fully read and considered every
response to this topic. But the extract below from "Jeremy
O'Wheel" <
> seems
to have a gaping hole to me.
- It states that "...
feral cats are not recorded to have
- impacted on any species of reptiles, amphibians, fish or
- invertebrates". Is my understanding of natural history
wrong,
- or does this not include mammals and birds which I think are
- "vertebrates", and I am sure that there must be plenty of
- studies to show the impact of feral cats on them??? Was the
- "executive study" quoted by Jeremy deliberately
misleading?
- I would be very surprised if there are no studies to show the impact
on reptiles. In WA, there have been serious cat baiting trials in
the Gibson Desert and at Lorna Glen Station NE of Wiluna conducted by
DEC. The primary aim of these trials was their effect on mammals,
but I would be amazed if there were no conclusions also about
reptiles.
- When I worked at the Argyle Diamond Mine in the Kimberley of WA, it
was obvious when there was a feral cat around the offices. All the
"ta ta lizards" (Gilbert's Dragons) disappeared or else you saw
the cat pass by with one hanging out of its mouth. Once the cat was
eliminated the dragons would eventually return. Surely there are
studies to this effect? This at least shows local decline /
extinction.
- ----------------------------------------
This document, for example, tries to summarise the science:
-
http://secure.environment.gov.au/biodiversity/invasive/publications/pubs/impacts-feral-cats.pdf
- >From the executive summary;
- "In Australia, in contrast to other parts of the world, feral
- cats are not
- recorded to have impacted on any species of reptiles, amphibians,
fish
- or
- invertebrates"
- But again I raise the issue of a fallacy of ignorance. Because
- there isn't
- much evidence, it's difficult to say that cats do or do not have an
- impact.
- We know in some specific cases an impact can be seen, and we know in
- some
- specific cases we weren't able to find an impact. We don't
know
- what the
- general consequences are.
- _________________________________________________________________
- Frank
O'Connor
Birding WA
http://birdingwa.iinet.net.au
- Phone : (08) 9386
5694
Email :
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_________________________________________________________________
Frank
O'Connor
Birding WA
http://birdingwa.iinet.net.au
Phone : (08) 9386
5694
Email :
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