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Correction of a bootstrap approach to testing for evolution along lines of least resistance
Author(s) -
BERNER D.
Publication year - 2009
Publication title -
journal of evolutionary biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.289
H-Index - 128
eISSN - 1420-9101
pISSN - 1010-061X
DOI - 10.1111/j.1420-9101.2009.01869.x
Subject(s) - biology , multivariate statistics , stickleback , trait , test (biology) , set (abstract data type) , statistics , protocol (science) , resistance (ecology) , replicate , evolutionary biology , fish <actinopterygii> , computer science , mathematics , ecology , fishery , medicine , alternative medicine , pathology , programming language
Testing for an association between the leading vectors of multivariate trait (co)variation within populations (the ‘line of least resistance’) and among populations is an important tool for exploring variational bias in evolution. In a recent study of stickleback fish populations, a bootstrap‐based test was introduced that takes into account estimation error in both vectors and hence improves the previously available bootstrap method. Because this test was implemented incorrectly, however, I here describe the correct test protocol and provide a reanalysis of the original data set. The application of this new test protocol should improve future investigations of evolution along lines of least resistance and other vector comparisons.