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The development of scientific consensus: analyzing conflict and concordance among Avian phylogenies

View ORCID ProfileJoseph W. Brown, Ning Wang, Stephen A. Smith
doi: https://doi.org/10.1101/123034
Joseph W. Brown
Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, Michigan 48109, USA
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Ning Wang
Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, Michigan 48109, USA
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Stephen A. Smith
Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, Michigan 48109, USA
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Abstract

Recent developments in phylogenetic methods and data acquisition have allowed for the construction of large and comprehensive phylogenetic relationships. Published phylogenies represent an enormous resource that not only facilitate the resolution of questions related to comparative biology, but also provide a resource on which to gauge the development of consensus across the tree of life. From the Open Tree of Life, we gathered 290 avian phylogenies representing all major groups that have been published over the last few decades and analyzed how concordance and conflict develop among these trees through time. Nine large scale backbone trees (including a new synthetic tree from this study) were used for the consensus assessment. We found that conflicts were over-represented both along the backbone (higher-level neoavian relationships) and within the oscine Passeriformes. Importantly, although we have made major strides in our knowledge of major clades, recent published comprehensive trees, as well as trees of individual clades, continue to contribute significantly to the resolution of clades in the avian phylogeny. These findings are somewhat unexpected, given that birds constitute a relatively well-studied and small clade of the tree of life (i.e., Aves). Therefore, our analysis highlights that much work is still needed before we can confidently resolve the less well studied areas of the tree of life.

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The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC 4.0 International license.
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Posted March 31, 2017.
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The development of scientific consensus: analyzing conflict and concordance among Avian phylogenies
Joseph W. Brown, Ning Wang, Stephen A. Smith
bioRxiv 123034; doi: https://doi.org/10.1101/123034
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The development of scientific consensus: analyzing conflict and concordance among Avian phylogenies
Joseph W. Brown, Ning Wang, Stephen A. Smith
bioRxiv 123034; doi: https://doi.org/10.1101/123034

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