Yellow-headed Poison Frog, Yellow-banded dart-poison frog, Bumblebee Poison Dart Frog
© 2008 Dr. Peter Janzen (1 of 29)
Distribution and Habitat
Country distribution from AmphibiaWeb's database: Brazil, Colombia, Guyana, Venezuela
Life History, Abundance, Activity, and Special Behaviors
D. leucomelas is toxic in its natural environment and derives its skin toxins from the ants in its diet (Caldwell 1996). It is the only poison frog known to estivate during the dry season (Walls 1994).
Males will chirp, buzz, trill, and hum to get females attention while also showing off their brightly colored bodies for an hour or two after sunrise and before sunset (Honolulu Zoo 2002; Walls 1994). Once a female chooses a male she will follow him to his area and stroke his back and snout. Sometimes both the male and female will slowly circle one another and stamp their feet (Walls 1994).
D. leucomelas females compete for males, and the terrestrial eggs are guarded by the male parent in a moist, sheltered area (USGS 2002).
The male rotates the eggs every so often so that they receive enough oxygen. Unlike most historionicus-group dendrobatids, the D. leucomelas tadpoles do not rely on eggs for nutrition but they will accept almost anything for food (Walls 1994).
Once they hatch, the tadpoles are carried on the father's back to small pools of water where they continue to develop (USGS 2002; Richard Stockton College 2002).
Metamorphosis takes 70 to 90 days; froglets resemble miniature adults but have duller colored bands. In captivity the froglets must eat regularly (fruit flies, pinhead crickets, and other small insects); going without food for 48 hours can lead to death. Some people have observed that they have a "sweet tooth" for small caterpillars (Walls 1994).
Trends and Threats
Relation to Humans
Some compounds of their skin have pharmacological properties, and have proved to be valuable in biomedical research (Honolulu Zoo 2002).
Possible reasons for amphibian decline
General habitat alteration and loss
American Museum of Natural History, Department of Herpetology (2002). Amphibian Species of the World Database. http://research.amnh.org/cgi-bin/herpetology/amphibia.
Barrio, C. L. and Fuentes, O. (1998). ''Distribución de Dendrobates leucomelas (Anura: Dendrobatidae) en Venezuela.'' Acta Biologica Venezuelica, 18(3), 35-41.
Barrio, C.L. and Fuentes, O. (1999). ''Sinopsis de la familia Dendrobatidae (Amphibia: Anura) de Venezuela.'' Acta Biologica Venezuelica, 19(3), 1-10.
CITES (2002). Cites Website. http://www.cites.org.
Caldwell, J. P. (1996). ''The evolution of myrmecophagy and its correlates in poison frogs (Family Dendrobatidae).'' Journal of Zoology (London), 240(1), 75-101.
Frank, N. and Ramus, E. (1995). A Complete Guide to Scientific and Common Names of Reptiles and Amphibians of the World. NG Publishing Inc., Pottsville, Pennsylvania.
Honolulu Zoo (2002). ''.'' ''http://www.honoluluzoo.org/yellow-banded_dart_frog.htm.''
McKeown, S. (1996). A Field Guide to Reptiles and Amphibians in the Hawaiian Islands. Diamond Head Publishing, Los Osos, California.
Myers, C. W. and Daly, J. W. (1976). ''Preliminary evaluation of skin toxins and vocalisations in taxonomic and evolutionary studies of poison-dart frogs (Dendrobatidae).'' Bulletin of the American Museum of Natural History, 157(3), 173-262.
Richard Stockton College of New Jersey Biology (2002). Information on the Breeding Cycle of Poison Dart Frogs. http://www2.stockton.edu/academics/undergraduate/natural_and_math_science/labs/biology/html/poison_frogs/info_breeding.html
Silverstone, P. A. (1975). ''A revision of the poison-arrow frogs of the genus Dendrobates Wagler.'' Natural History Museum of Los Angeles County, Scientific Bulletin, 21, 1-55.
USGS (2002). ''USGS NonIndigenous Aquatic Species .'' ''http://nas.er.usgs.gov.''
Walls, J. G. (1994). Jewels of the Rainforest: Poison Frogs of the Family Dendrobatidae. J.F.H. Publications, Neptune City, New Jersey.
Originally submitted by: Phoebe Lehmann (first posted 2003-01-11)
Description by: Michelle S. Koo (updated 2021-05-22)
Distribution by: Michelle S. Koo (updated 2021-05-22)
Life history by: Michelle S. Koo (updated 2021-05-22)
Trends and threats by: Michelle S. Koo (updated 2021-05-22)
Relation to humans by: Michelle S. Koo (updated 2021-05-22)
Comments by: Michelle S. Koo (updated 2021-05-22)
Edited by: Meredith Mahoney and Phoebe Lehmann (2021-05-22)
Species Account Citation: AmphibiaWeb 2021 Dendrobates leucomelas: Yellow-headed Poison Frog <https://amphibiaweb.org/species/1638> University of California, Berkeley, CA, USA. Accessed Dec 7, 2021.
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Citation: AmphibiaWeb. 2021. <https://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 7 Dec 2021.
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