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How to introduce connectance in a frame of an expression for diversity

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Systems made of parts that are totally connected do not work, neither ecosys- tems nor artifacts. Relative connectance is inversely related to diversity, and both magnitudes can find a common frame of expression, in which some constant expressing the constraints of any organization might be embodied. If S is Simp- son's index, the expression (1 - S)IS as a measure of diversity offers some advantages or, at least, helps further reasoning. Such expression is the ratio between total interspecific possible interactions and possible intraspecific inter- actions.

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MARGALEF, Ramon, GUTIÉRREZ MERINO, Emilia. How to introduce connectance in a frame of an expression for diversity. _American Naturalist_. 1983. Vol. 121, núm. 5, pàgs. 601-607. [consulta: 20 de gener de 2026]. ISSN: 0003-0147. [Disponible a: https://hdl.handle.net/2445/47466]

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