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Hi everyone,
Ultimately the question of "what is a species" currently comes down to the =
determination of how much DNA difference is enough. The paper doesn't say t=
hat Hoary Redpolls and Common redpolls have identical DNA, it says that the=
DNA is extremely similar. Ultimately the American Ornithologists Union, wh=
ich is the body which makes the final decision in North America, will decid=
e if the DNA is similar enough to lump the two or not.
There is certainly no harm in continuing to report the two 'forms' of redpo=
lls regardless of the species status. The Ipswich form of the Savannah Spar=
row is an example of this that is near and dear to the heart of Nova Scotia=
birders. Who knows, in the distant future new methods and/or decision make=
rs may declare that the difference between Common and Hoary Redpolls is in =
fact not as similar as this paper has concluded. If that time arrives then =
people will wish they recorded them separately.
All the best,
Lance
Lance Laviolette
Glen Robertson, Ontario
From: naturens-owner@chebucto.ns.ca [mailto:naturens-owner@chebucto.ns.ca] =
On Behalf Of N Robinson
Sent: Tuesday, March 31, 2015 2:21 PM
To: naturens@chebucto.ns.ca
Subject: EXTERNAL: [NatureNS] Hoary and common redpolls one species?
This just in:
http://blog.allaboutbirds.org/2015/03/30/from-many-one-how-many-species-of-=
redpolls-are-there/
Nancy
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<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D">Hi everyone,<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D"><o:p> </o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D">Ultimately the question o=
f “what is a species” currently comes down to the determination=
of how much DNA difference is enough. The paper doesn’t say that Hoa=
ry
Redpolls and Common redpolls have identical DNA, it says that the DNA is e=
xtremely similar. Ultimately the American Ornithologists Union, which is th=
e body which makes the final decision in North America, will decide if the =
DNA is similar enough to lump the
two or not.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D"><o:p> </o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D">There is certainly no har=
m in continuing to report the two ‘forms’ of redpolls regardles=
s of the species status. The Ipswich form of the Savannah Sparrow is
an example of this that is near and dear to the heart of Nova Scotia birde=
rs. Who knows, in the distant future new methods and/or decision makers may=
declare that the difference between Common and Hoary Redpolls is in fact n=
ot as similar as this paper has
concluded. If that time arrives then people will wish they recorded them s=
eparately.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D"><o:p> </o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D">All the best,<o:p></o:p><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D"><o:p> </o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D">Lance<o:p></o:p></span></=
p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D"><o:p> </o:p></span><=
/p>
<p class=3D"MsoNormal"><b><span style=3D"font-size:14.0pt;font-family:"=
;Batang","serif";color:#1F497D">Lance Laviolette<o:p></o:p><=
/span></b></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-