Molter, Daniel (2019) On Mycorrhizal Individuality. [Preprint]
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Abstract
This paper argues that a plant together with the symbiotic fungus attached to its roots, a mycorrhizal collective, is an evolutionary individual, and further, that mycorrhizal individuality has important implications for evolutionary theory. Theoretical individuation is defended and then employed to show that mycorrhizal collectives function as interactors according to David Hull’s replicator-interactor model of evolution by natural selection, and because they have the potential to engage in pseudo-vertical transmission, mycorrhizal collectives also function as Darwinian individuals, according to Peter Godfrey-Smith’s Darwinian Populations model of evolution by natural selection. Mycorrhizae in nature usually connect the roots of multiple plants, so mycorrhizal individuality entails the existence of overlapping evolutionary individuals, and because the potential to engage in pseudo-vertical transmission comes in degrees, it follows that these overlapping evolutionary individuals also come in degrees. I suggest here that the degree of evolutionary individuality in a symbiotic collective corresponds to its probability of reproducing with vertical or pseudo-vertical transmission. This probability constitutes a fourth parameter of graded Darwinian individuality in collective reproducers and warrants an update to Godfrey-Smith’s 3D model.
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| Item Type: | Preprint | ||||||
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| Keywords: | mycorrhizal collective, mycorrhizal network, Darwinian individuality, replicator-interactor, biological individual, great cube of being, collective reproducer | ||||||
| Subjects: | General Issues > Scientific Metaphysics Specific Sciences > Biology > Evolutionary Theory |
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| Depositing User: | Mr. Daniel Molter | ||||||
| Date Deposited: | 13 Sep 2019 05:36 | ||||||
| Last Modified: | 13 Sep 2019 05:36 | ||||||
| Item ID: | 16415 | ||||||
| Subjects: | General Issues > Scientific Metaphysics Specific Sciences > Biology > Evolutionary Theory |
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| Date: | 12 September 2019 | ||||||
| URI: | https://philsci-archive.pitt.edu/id/eprint/16415 |
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