Samir Okasha
University of Bristol
Kin selection and multilevel selection are alternative approaches for studying the evolution of social behaviour, the relation between which has long been a source of controversy. Many recent theorists regard the two approaches as ultimately equivalent, on the grounds that gene frequency change can be correctly expressed using either. However, this shows only that the two are formally equivalent, not that they offer equally good causal representations of the evolutionary process. This article articulates the notion of an ‘adequate causal representation’ using causal graphs, and then seeks to identify circumstances under which kin and multilevel selection do and do not satisfy the test of causal adequacy. 1 Introduction2 The KS and MLS Approaches2.1 The MLS decomposition2.2 The KS decomposition3 Equivalence and Causality4 Two Problem Cases4.1 The non-social trait case4.2 Genotypic selection with meiotic drive5 Casual Adequacy: A Graphical Approach5.1 The basic idea5.2 Graphs with individual and group variables5.3 Cases where KS is causally adequate5.4 Cases where MLS is causally adequate6 Discussion6.1 Relation to previous work.
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DOI 10.1093/bjps/axu047
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Units and Levels of Selection.Elisabeth Lloyd - 2008 - Stanford Encyclopedia of Philosophy.
Kin Selection, Group Selection, and the Varieties of Population Structure.Jonathan Birch - 2020 - British Journal for the Philosophy of Science 71 (1):259-286.
The Nature of Programmed Cell Death.Pierre M. Durand & Grant Ramsey - 2019 - Biological Theory 14 (1):30-41.

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