Krohs, Ulrich (2022) Darwin’s empirical claim and the janiform character of fitness proxies. [Preprint]
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Abstract
Darwin’s claim about natural selection is reconstructed as an empirical claim about a causal connection leading from the match of the physiology of an individual and its environment to leaving surviving progeny. Variations in this match, Darwin claims, cause differences in the survival of the progeny. Modern concepts of fitness focus the survival side of this chain. Therefore, the assumption that evolutionary theory wants to explain reproductive success in terms of a modern concept of fitness has given rise to the so-called tautology problem. It is shown that the tautology problem reappears in the treatment of fitness proxies in today’s experimental evolutionary biology when these proxies are considered to indicate fitness only. Taking Darwin’s empirical claim seriously suggests, by contrast, that fitness proxies are first of all measures of the match between organism and environment, which I call the organism’s ‘fittedness’. At the same time, they are indeed related to reproductive success. Thus looking in both directions, at fitness and at fittedness, they are janiform. Acknowledging this situation not only allows for rejection of the tautology objection, but also for integration of Darwin’s argument into current evolutionary biology. It is suggested that this helps reframe and alleviate the dispute between the Modern Synthesis and the Extended Evolutionary Synthesis.
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Item Type: | Preprint | ||||||
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Keywords: | Darwin; Extended Evolutionary Synthesis; Evolution; Fitness; Fitness Principle; Modern Synthesis; Niche Construction; Origin of Species | ||||||
Subjects: | Specific Sciences > Biology > Ecology/Conservation Specific Sciences > Biology > Evolutionary Theory General Issues > History of Science Case Studies |
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Depositing User: | Ulrich Krohs | ||||||
Date Deposited: | 01 Apr 2022 04:07 | ||||||
Last Modified: | 01 Apr 2022 04:07 | ||||||
Item ID: | 20402 | ||||||
DOI or Unique Handle: | 10.1007/s10539-022-09847-0 | ||||||
Subjects: | Specific Sciences > Biology > Ecology/Conservation Specific Sciences > Biology > Evolutionary Theory General Issues > History of Science Case Studies |
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Date: | 28 March 2022 | ||||||
URI: | https://philsci-archive.pitt.edu/id/eprint/20402 |
Available Versions of this Item
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Darwin’s empirical claim and the janiform character of fitness proxies. (deposited 13 Mar 2021 00:11)
- Darwin’s empirical claim and the janiform character of fitness proxies. (deposited 01 Apr 2022 04:07) [Currently Displayed]
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