From: Scott Chase (email@example.com)
Date: Wed 28 May 2003 - 18:43:04 GMT
>From: "Richard Brodie" <firstname.lastname@example.org>
>Subject: RE: Watches & Necklaces
>Date: Wed, 28 May 2003 10:34:10 -0700
>Scott Chase wrote:
><<Yes, especialy the complexit of interspecific relationships so we don't
>people makin impisti ecologcial analogies for the putative relatioship of
>memes to people.>>
>Are there any objective measurements of whether a symbiotic relationship is
>parasitic or mutual? Or is it all subjective?
Simply put the parasitic relationship is +-, the commensal relationship is
+0 and the mutual relationship is ++. The + means fitness or benefit inceases where - means these decrease. 0 means no effect. Minkoff's text (p. 157) discusses population increases versus decreases and the Lotka-Volterra equations.
I don't know how easily these relationships can be parsed in nature.
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