birding-aus

Island rarities

To: "Dave Torr" <>, "brian fleming" <>, "David James" <>
Subject: Island rarities
From: "John Harris" <>
Date: Fri, 14 Jan 2011 13:56:59 +1100
Let's move on.......
 
Surely there are other issues worth our attention!! 
 
 
Yours in all things "green"

Regards

John Harris
Manager, Environment and Sustainability
Donvale Christian College
155 Tindals Rd Donvale 3111
03 9844 2471  Ext 217
0409 090 955

 
President, Field Naturalists Club of Victoria (FNCV)
Past President, Victorian Association for Environmental Education
(VAEE)


>>> David James <> 14/01/2011 1:33 PM >>>
At the risk of repeating myself, I would reiterate that:

1) All boundaries and borders, be they political, geographical, or
biogeographical are artificial and temporary. 

2) Christmas and Cocos (Keeling) Islands are no more and no less  in
the 'Oriental' or Indo-Malay  faunal region or bioregion than they are
in the Australo-Papuan region. Neither is part of Asia at this point in
time or in their geological histories. Anyone asserting otherwise must
not know the facts.








--- On Fri, 14/1/11, Dave Torr <> wrote:


From: Dave Torr <>
Subject: Island rarities
To: "brian fleming" <>
Cc: 
Received: Friday, 14 January, 2011, 11:24 AM


One thing occurred to me - getting back to what was the point of this
thread
(I think) at one stage. Some argue that CI is in a different faunal
zone
from the mainland and this is a valid reason not to count them as
Aussie
birds. Whatever ones views on that subject I assume that as the
climate
changes the boundaries of these zones will tend to move and thus those
who
keep lists according to zones may also have an issue? Anyone care to
comment?

On 14 January 2011 11:10, brian fleming <>
wrote:

>  At present I cannot afford time or money to go to Christmas and
Cocos
> Islands to see this season's wonderful collection of rare blow-ins. 
I must
> say I would like to.
>
>  But there is more to rare birds on these islands than just a
twitchers'
> holiday. They illustrate how continental land birds can and do arrive
on
> distant islands, and then maybe begin the process of adapting and
evolving
> to their new habitats. For instance, the Buff-banded Rails on Heron
Island
> are almost completely flightless - presumably adaptation to absence
of
> predators, as well as the advantage of not being blown out to sea in
the
> next big cyclone.
>
>  And whether we personally approve of twitching or not, most
twitchers have
> excellent ID skills. So the blow-ins are noticed and recorded.
>
>  I do not believe that the Christmas/Cocos birds should appear with
the
> regular Australian birds in a Field Guide, but should rather be in
an
> appendix - this was the practice for Hawaii in an ancient Peterson
guide to
> Birds of north America.  Likewise a secondary list for the very
occasional
> vagrants and 'oncers'.
>
> Anthea Fleming
> ===============================
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