birding-aus

Re: New Clements book

To: "Tim Murphy" <>
Subject: Re: New Clements book
From: "Keith Weekes" <>
Date: Wed, 27 Jun 2007 08:31:03 +1000
So if a twitcher sees the antbird before it's split, I assume he gets 8 more
ticks in his lounge room the moment the split occurs.

After all, the ticks mean more than the genetics don't they? : )


On 27/06/07, Tim Murphy <> wrote:

Apparently the Wrentit has never made it across the Columbia River.

http://en.wikipedia.org/wiki/Wrentit It is odd that such a shy bird should
have all its relatives in Asia.

Tim Murphy

-----Original Message-----
From: 
 Behalf Of Chris Sanderson
Sent: Tuesday, 26 June 2007 8:38 PM
To: 
Cc: 
Subject: Re: [Birding-Aus] Re: New Clements book


Hi Andrew,

Wouldn't a 50-100m wide river be an awful risk for a poor-flying shy
species
known to not willingly cross paths let alone a river?  It's not a case of
being incapable but unwilling I'd imagine?  Don't know if this is the real
reason, but it sounds likely to me.

Regards,
Chris

On 6/26/07, Andrew Taylor <> wrote:
>
> On Tue, Jun 26, 2007 at 05:51:31PM +1000, Murray Lord wrote:
> > If you read the scientific literature you will find plenty of
> > justification for recent splits.
>
> And there may be plenty to come.  I was at a couple of recent talks on
> evolution in Amazonian birds which presented genetic data suggested
rivers
> may be more effective barriers to rainforest birds than you'd expect.
>
> For one Antbird, based on limited genetic sampling, the differentiation
> was such that it looked as though it should be split into five species.
> And for another species, a 9-way split was conceivable.  This isn't a
> matter of changing species definitions - it looked to me these would
> be classical BSC species.  The presenters didn't discuss this.  They
> were focused on evolutionary history, not species status.
>
> I don't understand how a 50-100m wide river acts as a such a long-term
> barrier and there is obviously a great deal of research to be done
> but in the next decade or so expect a lot a splitting where birds have
> pan-Amazonian distribution
>
> Andrew
> ===============================
> www.birding-aus.org
> birding-aus.blogspot.com
>
> To unsubscribe from this mailing list,
> send the message:
> unsubscribe
> (in the body of the message, with no Subject line)
> to: 
> ===============================
>
===============================
www.birding-aus.org
birding-aus.blogspot.com

To unsubscribe from this mailing list,
send the message:
unsubscribe
(in the body of the message, with no Subject line)
to: 
===============================


===============================
www.birding-aus.org
birding-aus.blogspot.com

To unsubscribe from this mailing list,
send the message:
unsubscribe
(in the body of the message, with no Subject line)
to: 
===============================

===============================
www.birding-aus.org
birding-aus.blogspot.com

To unsubscribe from this mailing list, send the message: unsubscribe (in the body of the message, with no Subject line)
to: 
===============================

<Prev in Thread] Current Thread [Next in Thread>
Admin

The University of NSW School of Computer and Engineering takes no responsibility for the contents of this archive. It is purely a compilation of material sent by many people to the birding-aus mailing list. It has not been checked for accuracy nor its content verified in any way. If you wish to get material removed from the archive or have other queries about the archive e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU