2 Works

Data from: Nuclear markers reveal a complex introgression pattern among marine turtle species on the Brazilian coast

Sibelle T. Vilaça, Sarah M. Vargas, Paula Lara-Ruiz, Érica Molfetti, Estéfane C. Reis, Gisele Lôbo-Hajdu, Luciano S. Soares & Fabrício R. Santos
A surprisingly high frequency of interspecific sea turtle hybrids have been previously recorded in a nesting site along a short stretch of the Brazilian coast. Mitochondrial DNA data indicated that as much as 43% of the females identified as E. imbricata are hybrids in this area (Bahia State of Brazil). It is a remarkable find, since most of the nesting sites surveyed worldwide, including some in northern Brazil, presents no hybrids, and rare Caribbean sites...

Data from: High frequency echolocation, ear morphology, and the marine–freshwater transition: a comparative study of extant and extinct toothed whales

Carolina S. Gutstein, Constanza P. Figueroa-Bravo, Nicholas D. Pyenson, Roberto E. Yury-Yañez, Mario A. Cozzuol & Mauricio Canals
This study compares the bony ear morphology of freshwater and marine odontocetes (toothed whales). Odontocetes are unique among marine mammals in two important respects: 1) they use echolocation; 2) at least three lineages have independently evolved obligate freshwater habits from marine ancestries. Freshwater odontocetes include the so-called “river dolphins,” a paraphyletic group that each evolved convergent external morphological characters that distinguish them from oceanic dolphins (Delphinoidea). In addition to their convergent external morphology, “river dolphins”...

Registration Year

  • 2012

Resource Types

  • Dataset


  • Universidade Federal de Minas Gerais
  • National Museum of Natural History
  • University of Chile
  • Federal University of the State of Rio de Janeiro