ochlospecies

[Aleta Karstad]

Ken Kinman wrote:
>
> I am wondering how an ochlospecies differs from a polytypic species.

* never having heard of ochlospecies before this thread began, I'm no
authority, but there's two angles to this: 1 [cynical]) a polytypic
species is one that somebody who believes in using subspecies to describe
geographic variation got to first, or 2 [quasi-quantitative]) a polytypic
species is one where geographic variation is most economically described
(high F values) by geographic partitions into taxa (perhaps ideally with
increased phenotypic or genetic variation as evidence of hybridization in
the contact zones), whereas in an ochlospecies (remember I never heard
the term 'ochlospecies' before this thread began) the variation is best
described by regressing individual variables (or multivariate factors)
separately on geographic or environmental variables.

fred schueler                                            Y
                                                         !
__________________________________________________      / \
EASTERN  <>  ONTARIO  <>  BIODIVERSITY  <>  MUSEUM     (U U)
Box 1860 Kemptville, Ontario K0G 1T0                    UU
bckcdb at istar.ca   (613) 258-3415    vvvv               vv
                       vvvv      vvvvvvvvvv          vvv
v                   vvvvvvvvvv  vvvvvvvvvvvvv      vvvv
 vv             vvvvv      vvvvvvvvvvv   vvvvvvvvvvvv
   vvvvvvvvvvvvvv             vvvvvv       vvvvvvvv
        vvv
__________________________________________________
215 Sanders Street in Kemptville, south of the lights at Highway 43,
on the lower level of Raina's Northside Plaza, across from the grocery
store and Giant Tiger. Public Hours: Thurs.Fri.10-8, Sat.10-6, Sun 1-6