[APWG] Percentage cover of each species to find constants

Wayne Tyson landrest at cox.net
Fri Oct 5 21:16:46 CDT 2012


Dear Craig and All,

I do think of the whole earth as a huge Petri dish, but I cannot understand 
what you are talking about. I asked "What ecological condition(s) are 
revealed by cover?"

That should be a simple enough question to answer, so I can't imagine why 
anybody would choose to avoid answering it. Are you suggesting that my 
question is irrelevant? Do you think that ecological conditions that give 
rise to ecological phenomena are not important to the subject at hand?

WT

PS: Please preserve the string of relevant emails in the future; I'll 
greatly appreciate not having to hunt up previous emails to recall the 
context and issues under discussion. Thank you.

----- Original Message ----- 
From: "Craig Dremann - Redwood City Seed Company" <Craig at astreet.com>
To: <apwg at lists.plantconservation.org>
Sent: Tuesday, October 02, 2012 1:59 PM
Subject: [APWG] Percentage cover of each species to find constants


> Dear Wayne and All,
>
> I hope this is of interest to all of the readers of this list.
>
> The percentage cover of each species in an area, for my purposes, is not
> to determine any ecological conditions, but to build models to find plant
> species interactions.
>
> What you use percentage cover of each species within an area, is to
> develop your mathematical constants with those figures.  Then you can use
> those constants to write equations, and those equations can then be used
> to build computer programs.
>
> With these species Mathematical Constants, the sum is always 100, meaning
> 100 percent cover for the area.
>
> For example, at Land Doctor Mark Vande Pol and his 14 acres, I saw very
> interesting native legume-native grass associations that I had never seen
> before.
>
> If you think as if your weed or native area like a huge petri dish, then
> how are the plants and weeds interacting with each other?  The
> Mathematical Constants can help sort those relationships out.
>
> Sincerely,  Craig Dremann (650) 325-7333
>
>
>
>
>
>
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