Re: Unambiguous definition?


In article <d3vcp3h7tafjvqrdaadorde6emuaib305j@xxxxxxx>, amacmil304@xxxxxxx writes
On Tue, 22 Jan 2008 22:33:33 +0000, Malcolm
<Malcolm@xxxxxxxxxxxxxxxxxx> wrote:


In article <23kcp3ps6oonjqk76gugh3o0l9aq7urob5@xxxxxxx>,
amacmil304@xxxxxxx writes
On Tue, 22 Jan 2008 18:52:59 +0000 (GMT), Robert Seago
<rjseago@xxxxxxxxxxxx> wrote:

In article <u8bap31d2epeari5g71e801i0h3sf3nri2@xxxxxxx>,
<amacmil304@xxxxxxx> wrote:
Anyone care to give an unambiguous definition of "native species"?


Conventionally, species native to the UK are regarded as those that have
arrived here since the last ice age without human assistance.

This is the generally accepted convention.

The rationale behind it, and the reason that I concur with it is that, the
heritage in Britain that we have is composed of species which have been
selected for our environment, that is our climates, soils and land use.

I thought that's what it might be . So what about those (re)introduced
from foreign countries by so-called conservationists with different
climates, soils and land use? Red squirrel and beavers for instance.

Red squirrels never died out in the UK, so what happened was not a
reintroduction but the boosting of an existing population, the same as
with Red Kites.

Where did you come to that conclusion?

Here.

As you have been told more than once, all modern reintroductions follow
internationally agreed guidelines which govern both the suitability of
the source population as well as the conditions in the reintroduction
locality to make sure that it is suitable in terms of climate, soils,
land use, food availability, etc., etc.

That doesn't make them indigenous to where they are introduced.

The species was indigenous to the area, died out and was re-established. The species is therefore indigenous.

They
have evolved in entirely different environments.

The white-tailed eagles in Norway are living in the same environment as the west of Scotland, which explains why the birds brought from Norway are flourishing.

And you could say
the same about grey squirrels that "the conditions in the
reintroduction locality to make sure that it is suitable in terms of
climate, soils, land use, food availability, etc., etc.

No, you couldn't. Grey squirrels were *introduced* here.

And you can't re-introduce something if it wasn't introduced in the
first place.

You are, as is your wont, trying to alter the accepted meaning of the word.


And,. of course, reintroductions are carried out by genuine
conservationists.

Not by anyone, if they haven't been introduced previously.

See above.


--
Malcolm
.

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