3 Works

Data from: Simultaneous delimitation of species and quantification of interspecific hybridization in Amazonian peacock cichlids (genus Cichla) using multi-locus data

Stuart C. Willis, Jason Macrander, Izeni P. Farias & Guillermo Orti
BACKGROUND: Introgression likely plays a significant role in evolution, but understanding the extent and consequences of this process requires a clear identification of species boundaries in each focal group. The delimitation of species, however, is a contentious endeavor. This is true not only because of the inadequacy of current tools to identify species lineages, but also because of the inherent ambiguity between natural populations and species paradigms. The result has been a debate about the...

Data from: Comparative analysis of encephalization in mammals reveals relaxed constraints on anthropoid primate and cetacean brain scaling

Amy M. Boddy, Michael R. McGowen, Chet C. Sherwood, Lawrence I. Grossman, Morris Goodman & Derek E. Wildman
There is a well-established allometric relationship between brain and body mass in mammals. Deviation of relatively increased brain size from this pattern appears to coincide with enhanced cognitive abilities. To examine whether there is a phylogenetic structure to such episodes of changes in encephalization across mammals, we used phylogenetic techniques to analyse brain mass, body mass and encephalization quotient (EQ) among 630 extant mammalian species. Among all mammals, anthropoid primates and odontocete cetaceans have significantly...

Data from: Understanding the formation of ancient intertropical disjunct distributions using Asian and Neotropical hinged-teeth snakes (Sibynophis and Scaphiodontophis: Serpentes: Colubridae)

Xin Chen, Song Huang, Peng Guo, Guarino R. Colli, Adrián Nieto Montes De Oca, Laurie J. Vitt, R. Alexander Pyron & Frank T. Burbrink
Numerous taxa show ancient intertropical disjunct distributions. Many can be explained by well-known processes of historical vicariance, such as the breakup of Gondwanaland. Others, such as Asian–Neotropical divergences are not as well understood. To clarify the phylogenetic position and understand biogeographic and temporal origins the geographically disjunct and morphologically unique genera of hinged-teeth snakes, Scaphiodontophis (n = 1) and Sibynophis (n = 9; Colubridae), we inferred a time-calibrated phylogeny with additional 107 taxa representing the...

Registration Year

  • 2012
    3

Resource Types

  • Dataset
    3

Affiliations

  • George Washington University
    3
  • The Ohio State University
    1
  • Wayne State University
    1
  • National Autonomous University of Mexico
    1
  • University of Oklahoma
    1
  • Queens College, CUNY
    1
  • Yibin University
    1
  • University of Nebraska - Lincoln
    1
  • Instituto do Cérebro de Brasília
    1
  • Huangshan University
    1