Leg Tags

To: "'Ian May'" <>
Subject: Leg Tags
From: "Paul Dodd" <>
Date: Mon, 30 Jun 2008 15:48:23 +1000
In my opinion it is actually detrimental to the debate to try to lump leg
banding with regional extinctions caused by reduction of habitat islands in
the island biogeography model. I think that the article stands on its own
merit. Clearly habitat loss is one of the most significant issues that we
must deal with in trying to conserve species - the truly worrying element is
that reducing the habitat size by half can reduce the number of species
supported by that habitat by much more than half. Even in the worst case, I
think that leg banding would have a minimal impact, and I suspect probably a
zero impact. To my mind, leg banding is probably a reasonable scientific
method for tracking individuals - and probably actually improves our
understanding of complex issues relating to habitat loss. I for one would
think that anything we can do to improve our understanding of this issue is
something that we should do with some urgency.

Paul Dodd
Docklands, Melbourne

-----Original Message-----
 On Behalf Of Carl Clifford
Sent: Monday, 30 June 2008 1:36 PM
To: Ian May
Cc: Baus
Subject: Leg Tags

Hi Ian,

There is nothing in that article which links ringing with decline of  
bird numbers in the Adelaide Hills. I think what Graham (and others  
who read your post would like to know), is what is the link between  
banding and decline of bird numbers in the Adelaide Hills? Have there  
been studies done on this link or is it one of those things that only  
requires common sense to work out?


Carl Clifford

On 30/06/2008, at 1:15 PM, Ian May wrote:

Hello Graham

Good question; See

There is little doubt that some Mount Lofty Ranges bird species are in  
trouble, although it is also true that some observers are skeptical  
about such alarmist predictions, believing the claims are possibly  
motivated by a quest for further funding rather than to contribute  
objectively to useful conservation strategies.


Ian May

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