Question about Naked Ladies
Steve Marak (Fri, 21 Dec 2007 09:21:04 PST)
Jim,
Thank you! I encountered the word Rassenkreis many years ago, used to
describe exactly the situation David mentions. The example given was a
moth, I think, with one end of the arc in Florida in the US, and the
other end somewhere around Belize.
But I somehow got a bad spelling of Rassenkreis in my head, and despite
only being a couple of letters off was never able to get a hit on it -
until now. A long-standing irritation resolved, just in time for
Christmas!
Steve
On Fri, 21 Dec 2007, J.E. Shields wrote:
David,
One expression for this that I recall is Rassenkreis, a breeding or racial
circle or arc. I think I have seen "cline" applied to the sort of
variational gradient you describe. We still someone who knows for sure to
enlighten us!
Jim Shields
At 07:04 PM 12/20/2007 -0800, David wrote:
There is a botanical word I'm looking for it's something like gradient,
but I don't think that's the word. It is used when referring to a species
with a broad distribution which has one form at one end of its
distribution and a very different form at the other end. The two extreme
-- Steve Marak
-- samarak@gizmoworks.com