[permaculture] The Heretic - Was Thoughts on PDCs

Tripp Tibbetts slowfoodguy at yahoo.com
Sat Dec 12 22:49:25 EST 2009


Permaculture seems to be wrestling with the same growth issues that the rest of society has in the past.  It's popularity is waxing due to market forces, but centralized control and homogeneity is counter to its very nature.  The analogy of cellular structure comes to mind.  A successful cell model doesn't swell into gigantism; it replicates itself at scale, with minor regional variations.  Over enough distance two cells might have very little in common.
 
Of course we can always hope for anagenesis.  Or not.  Nothing terribly permacultural about it.
 
Tripp out.



The best fertilizer is the gardener's shadow.
-Chinese proverb
 

--- On Sun, 12/13/09, Lawrence F. London, Jr. <venaurafarm at bellsouth.net> wrote:


From: Lawrence F. London, Jr. <venaurafarm at bellsouth.net>
Subject: Re: [permaculture] The Heretic - Was Thoughts on PDCs
To: "permaculture" <permaculture at lists.ibiblio.org>
Date: Sunday, December 13, 2009, 2:22 AM


Tripp Tibbetts wrote:
''''''''''''''''''''''''''
speciation event
''''''''''''''''''''''''''

Speciation
>From Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/Speciation

Speciation is the evolutionary process by which new biological species 
arise. The biologist Orator F. Cook seems to have been the first to coin 
the term 'speciation' for the splitting of lineages or 'cladogenesis,' 
as opposed to 'anagenesis' or 'phyletic evolution' occurring within 
lineages.[1][2] Whether genetic drift is a minor or major contributor to 
speciation is the subject of much ongoing discussion. There are four 
geographic modes of speciation in nature, based on the extent to which 
speciating populations are geographically isolated from one another: 
allopatric, peripatric, parapatric, and sympatric. Speciation may also 
be induced artificially, through animal husbandry or laboratory 
experiments. Observed examples of each kind of speciation are provided 
throughout.[3]

speciation
http://en.wikipedia.org/wiki/Speciation

species
http://en.wikipedia.org/wiki/Species

evolutionary
http://en.wikipedia.org/wiki/Evolution

cladogenesis
http://en.wikipedia.org/wiki/Speciation

genetic drift
http://en.wikipedia.org/wiki/Genetic_drift

anagenesis (phyletic evolution)
http://en.wikipedia.org/wiki/Anagenesis

phyletic
Anagenesis, also known as "phyletic change," is the evolution of species 
involving an entire population rather than a branching event, as in 
cladogenesis

allopatric
http://en.wikipedia.org/wiki/Allopatric_speciation

peripatric
http://en.wikipedia.org/wiki/Peripatric_speciation

parapatric
http://en.wikipedia.org/wiki/Parapatric_speciation

sympatric
http://en.wikipedia.org/wiki/Sympatric_speciation















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