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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