birding-aus

Re: New Clements book

Subject: Re: New Clements book
From: "Tim Murphy" <>
Date: Wed, 27 Jun 2007 13:37:01 +1000
No of course not. The twitcher has to identify which of the split
sub-species he saw. If he or she can't say which one, he looses a tick. (I
lost a Herring type Gull in Bahrain that way).

If it can be identified by geography, like the Solitary Vireo complex, he or
she might get a couple of extra ticks, but only if they have seen birds in
all the different and disparate ranges..

It's all hard work - harder sometimes than the original ticks. Overall I
suppose that I'm up 10 species through splits.

Tim Murphy
  -----Original Message-----
From: Keith Weekes 
  Sent: Wednesday, 27 June 2007 8:31 AM
  To: Tim Murphy
  Cc: 
  Subject: Re: [Birding-Aus] Re: New Clements book


  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: 
     ]On 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
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