Title

Obesity Related Stigma As A Form Of Oppression: Implications For Social Work Education

Keywords

Ancestral character state reconstruction; BiSSE; Evolutionary constraint; Macroevolution; Oviparity; Reverse-jump Markov Chain Monte Carlo Bayesian methods; Viviparity

Abstract

Dollo's law, that complex characters are not regained in evolution, is a pattern applied to many systems. Recent work has evaluated unidirectional evolution in a number of contexts, and several violations of this law have been documented. These methods have also been criticized for potentially overestimating reversals. We test the hypothesis that the ancestral reproductive mode of oviparity can be regained in vipers, in opposition to Dollo's law. We use model comparison and ancestral character state reconstruction methods that address recent criticisms, and find evidence both supporting and refuting Dollo's predictions from different analyses. We discuss our results in the context of unidirectional evolution and review factors required for strong inference of violations of Dollo's law. © 2011 Blackwell Verlag GmbH.

Publication Date

2-1-2012

Publication Title

Social Work Education

Volume

31

Issue

1

Number of Pages

63-74

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1080/02615479.2010.541236

Socpus ID

84855881501 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84855881501

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