Langbahn Team – Weltmeisterschaft

Dendrobates

Dendrobates
Dendrobates tinctorius
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Dendrobatidae
Subfamily: Dendrobatinae
Genus: Dendrobates
Wagler, 1830
Type species
Dendrobates tinctorius
Cuvier, 1797
Diversity
5 species (see text)
Distribution of the five Dendrobates species

Dendrobates is a genus of poison dart frogs native to Central and South America. It once contained numerous species, but most originally placed in this genus have been split off into other genera such as Adelphobates, Ameerega, Andinobates, Epipedobates, Excidobates, Oophaga, Phyllobates and Ranitomeya (essentially all the brightly marked poison dart frogs; i.e. excluding the duller genera in the family like Colostethus and Hyloxalus), leaving only five large to medium-sized species in the genus Dendrobates.[1][2] All the other genera used to be grouped in with Dendrobates because it was previously thought that all brightly colored poison dart frogs came from the same ancestor but this has since been proven to be incorrect.[3] Dendrobates and Phyllobates evolved conspicuous coloration from the same common ancestor but not the same as any of the other genera listed above.[4]

There is accumulating evidence that Dendrobates are diet specialists and sequester the toxin found on their skin from their diet. It has been found that diet specialization evolved in tandem with conspicuous coloration in the case of Dendrobates.[5]

The generic name Dendrobates is derived from Ancient Greek δένδρον déndron 'tree' and βάτης bátēs 'one that treads', meaning ‘tree climber’.[6]

Dendrobates mostly live on the forest floor. They lay their eggs in damp leaf litter on the forest floor. After the eggs hatch, some species of Dendrobates carry their tadpoles on their backs up to the rainforest canopy so they can grow in the pools of water on top of Bromeliaceae, and feed their tadpoles with unfertilized eggs.[7]

Species

Image Common name Binomial name and authority[8] Distribution
Green and black poison dart frog Dendrobates auratus (Girard, 1855) southeastern Nicaragua on the Atlantic slope and southeastern Costa Rica on the Pacific coast through Panama to northwestern Colombia (Chocó Department)
Yellow-banded poison dart frog Dendrobates leucomelas Steindachner, 1864 Guyana, Brazil, Venezuela and the extreme easternmost part of Colombia
Rockstone poison dart frog Dendrobates nubeculosus Jungfer and Böhme, 2004 near Rockstone, Guyana
Dyeing poison dart frog Dendrobates tinctorius (Cuvier, 1797) Guiana Shield, including parts of Guyana, Suriname, Brazil, and nearly all of French Guiana.
Yellow-striped poison dart frog Dendrobates truncatus (Cope, 1861) Colombia

References

  1. ^ Grant, T.; Frost, D. R.; Caldwell, J. P.; Gagliardo, R.; Haddad, C. F. B.; Kok, P. J. R.; Means, D. B.; Noonan, B. P.; Schargel, W. E.; Wheeler, W. C. (2006). "Phylogenetic systematics of dart-poison frogs and their relatives (Amphibia: Athesphatanura: Dendrobatidae)". Bulletin of the American Museum of Natural History. 299 (299): 1–262. CiteSeerX 10.1.1.693.8392. doi:10.1206/0003-0090(2006)299[1:PSODFA]2.0.CO;2. hdl:2246/5803. S2CID 82263880.
  2. ^ Frost, Darrel R. (2020). "Dendrobatidae". Amphibian Species of the World, an Online Reference. Version 6.0. American Museum of Natural History, New York. Retrieved 17 February 2020.
  3. ^ Santos, Juan Carlos; Coloma, Luis A.; Cannatella, David C. (2003-10-28). "Multiple, recurring origins of aposematism and diet specialization in poison frogs". Proceedings of the National Academy of Sciences of the United States of America. 100 (22): 12792–12797. doi:10.1073/pnas.2133521100. ISSN 0027-8424. PMC 240697. PMID 14555763.
  4. ^ Carvajal-Castro, Juan D.; Vargas-Salinas, Fernando; Casas-Cardona, Santiago; Rojas, Bibiana; Santos, Juan C. (2021-09-24). "Aposematism facilitates the diversification of parental care strategies in poison frogs". Scientific Reports. 11 (1): 19047. Bibcode:2021NatSR..1119047C. doi:10.1038/s41598-021-97206-6. ISSN 2045-2322. PMC 8463664. PMID 34561489.
  5. ^ Santos, Juan Carlos; Coloma, Luis A.; Cannatella, David C. (2003-10-28). "Multiple, recurring origins of aposematism and diet specialization in poison frogs". Proceedings of the National Academy of Sciences of the United States of America. 100 (22): 12792–12797. doi:10.1073/pnas.2133521100. ISSN 0027-8424. PMC 240697. PMID 14555763.
  6. ^ Dodd, C. Kenneth (2013). Frogs of the United States and Canada. Vol. 1. The Johns Hopkins University Press. p. 20. ISBN 978-1-4214-0633-6.
  7. ^ Forsyth, Adrian; Miyata, Ken (1984). Tropical Nature: Life and Death in the Rain Forests of Central and South America. New York, NY: Touchstone. pp. 181–183. ISBN 0-684-18710-8.{{cite book}}: CS1 maint: date and year (link)
  8. ^ Frost, Darrel R. (2014). "Dendrobates Wagler, 1830". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 13 September 2014.


Quelle: https://en.wikipedia.org/wiki/Dendrobates