Authors
Ariew Andre
University of Missouri, Columbia
Abstract
The central point of this essay is to demonstrate the incommensurability of ‘Darwinian fitness’ with the numeric values associated with reproductive rates used in population genetics. While sometimes both are called ‘fitness’, they are distinct concepts coming from distinct explanatory schemes. Further, we try to outline a possible answer to the following question: from the natural properties of organisms and a knowledge of their environment, can we construct an algorithm for a particular kind of organismic life-history pattern that itself will allow us to predict whether a type in the population will increase or decrease relative to other types? Introduction Darwinian fitness Reproductive fitness and genetical models of evolution The models of reproductive fitness 4.1 The Standard Viability Model 4.2 Frequency-dependent selection 4.3 Fertility models 4.4 Overlapping generations Fitness as outcome 5.1 Fitness as actual increase in type 5.2 Fitness as expected increase in type 5.2.1 Expected increase within a generation 5.2.2 Expected increase between generations 5.2.3 Postponed reproductive fitness effects The book-keeping problem Conclusion.
Keywords Fitness   Biology   Natural Selection   Philosophy of Science
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DOI 10.1093/bjps/55.2.347
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References found in this work BETA

Fitness, Probability and the Principles of Natural Selection.Frederic Bouchard & Alexander Rosenberg - 2004 - British Journal for the Philosophy of Science 55 (4):693-712.
Fitness.Alexander Rosenberg - 1983 - Journal of Philosophy 80 (8):457-473.

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Citations of this work BETA

A New Foundation for the Propensity Interpretation of Fitness.Charles H. Pence & Grant Ramsey - 2013 - British Journal for the Philosophy of Science 64 (4):851-881.
Fitness, Probability and the Principles of Natural Selection.Frederic Bouchard & Alexander Rosenberg - 2004 - British Journal for the Philosophy of Science 55 (4):693-712.
Four Pillars of Statisticalism.Denis M. Walsh, André Ariew & Mohan Matthen - 2017 - Philosophy, Theory, and Practice in Biology 9 (1):1-18.
Conditions for Evolution by Natural Selection.Peter Godfrey-Smith - 2007 - Journal of Philosophy 104 (10):489-516.

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