期刊
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
卷 106, 期 20, 页码 8262-8266出版社
NATL ACAD SCIENCES
DOI: 10.1073/pnas.0902973106
关键词
biogeography; body size; macroecology; macroevolution; systematics
资金
- National Aeronautics and Space Administration
- University of Michigan Society of Fellows
Morphologically-defined mammalian and molluscan genera (herein morphogenera'') are significantly more likely to be monophyletic relative to molecular phylogenies than random, under 3 different models of expected monophyly rates: approximate to 63% of 425 surveyed morphogenera are monophyletic and 19% are polyphyletic, although certain groups appear to be problematic (e. g., nonmarine, unionoid bivalves). Compiled nonmonophyly rates are probably extreme values, because molecular analyses have focused on problem'' taxa, and molecular topologies (treated herein as error-free) contain contradictory groupings across analyses for 10% of molluscan morphogenera and 37% of mammalian morphogenera. Both body size and geographic range, 2 key macro-evolutionary and macroecological variables, show significant rank correlations between values for morphogenera and molecularly-defined clades, even when strictly monophyletic morphogenera are excluded from analyses. Thus, although morphogenera can be imperfect reflections of phylogeny, large-scale statistical treatments of diversity dynamics or macroevolutionary variables in time and space are unlikely to be misleading.
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