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Greater Rhea Rhea americana

  • Order: Rheiformes
  • Family: Rheidae
  • Polytypic: 5 subspecies
  • Authors: C. Hodes

Demography and Populations

Population genetic variation

Phenotypic analysis of randomly amplified polymorphic DNA markers sampled from four isolated wild populations in Argentina revealed that over 94% of total observed molecular variance was due to differences within populations, and only 6% due to differences between separate populations. Recent population fragmentation and isolation may have contributed to genetic drift and inbreeding, increasing local genetic variation and decreasing variation within populations (Bouzat 2001).

Recommended Citation

Hodes, C. (2010). Greater Rhea (Rhea americana), version 1.0. In Neotropical Birds Online (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA.