Dendrobates tinctorius

Dendrobates tinctorius (or Dyeing Dart frog) is a species of poison dart frog, the type species of the genus Dendrobates. It is the largest species, reaching lengths of 50 mm. This species is distributed throughout the eastern portion of the Guiana Shield, including parts of Guyana, Suriname, Brazil, and nearly all of French Guiana.

Additional recommended knowledge

Essential Laboratory Skills Guide

Daily Visual Balance Check

Weighing the right way

Dendrobates tinctorius exists in discrete patches throughout this distribution, being restricted to "highland" (up to 350+ metre) areas. While this species can be found at sea level, these individuals have been collected at the base of nearby hills or mountains. The isolation of populations has presumably occurred as a result of the erosion of these highland areas and the seasonal inundation of the inter-patch areas.

The species encompasses a great diversity of colour and patterning variants (morphs). Some batrachologists suspect that they are actually different species. The name tinctorius comes, however, not from the variety of colors, but from the way some indigenous tribes use the frogs. They rub them on the skin of young parrots, and the poisoning of the parrots' skin causes them to grow feathers of different colors.

References

• Gaucher & MacCulloch (2004). Dendrobates tinctorius. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 12 May 2006. Database entry includes a range map and a brief justification of why this species is of least concern