[Taxacom] RES: south-west Australia

[Frederick W. Schueler]

On 6/22/2011 10:34 AM, Curtis Clark wrote:
> On 6/22/2011 5:09 AM, John Grehan wrote:
>> This discussion exemplifies what panbiogeography is all about. In my opinion, panbiogeography is not focused on hashing over theories and definitions about vicariance and dispersal based on some theoretical proposition or 'null hypothesis (as in Darwinian center of origin/dispersalist biogeography), but begins with a serious look at the facts of biogeography as represented by looking at how phylogenetic relationships and boundaries are geographically located and spatially related to each other.


> Every science uses null hypotheses. All biogeographers use the null
> hypothesis "everything lives everywhere". If panbiogeographers haven't
> refined the null hypotheses beyond that, more's the shame, but I suspect
> they have. Otherwise, they are comparing their data with nothing.

* and one suspects that dispersalist biogeography would use 
panbiogeographer's discovery - "biogeographic patterns conform to those 
of plate tectonics and other geological history" - as its null hypothesis.

fred.
------------------------------------------------------------
           Frederick W. Schueler & Aleta Karstad
Bishops Mills Natural History Centre - http://pinicola.ca/bmnhc.htm
Thirty Years Later Expedition - 
http://fragileinheritance.org/projects/thirty/thirtyintro.htm
Longterm ecological monitoring - http://fragileinheritance.org/
Daily Paintings - http://karstaddailypaintings.blogspot.com/
            http://www.doingnaturalhistory.com/
          http://quietcuratorialtime.blogspot.com/
      RR#2 Bishops Mills, Ontario, Canada K0G 1T0
    on the Smiths Falls Limestone Plain 44* 52'N 75* 42'W
     (613)258-3107 <bckcdb at istar.ca> http://pinicola.ca/
------------------------------------------------------------
------------------------------------------------------------