Monte Iberia eleuth
|Monte Iberia eleuth|
Estrada and Hedges, 1996
|Distribution of E. iberia in Cuba|
The Monte Iberia eleuth (Eleutherodactylus iberia) is a small eleutherodactylid frog endemic to eastern Cuba. It is the smallest living frog in the Northern Hemisphere, about 10 mm (0.39 in) in snout–vent length. It is the third-smallest frog (and tetrapod) in the world, following Paedophryne amauensis and the Brazilian gold frog. It was first discovered in 1993 on Mount Iberia (Holguín Province), from which it gets its name, and exists in only two small regions of Cuba. Much remains unknown about this small creature.
This diminutive species was first documented by Cuban scientist Alberto R. Estrada of the Institute of Forest Research in Havana, working with S. Blair Hedges of Pennsylvania State University in association with the National Science Foundation's Biotic Surveys and Inventories Program. On a 1993 expedition to Cuchillas de Moa in search of the ivory-billed woodpecker (now believed to be extinct), four E. iberia specimens were collected after being uncovered under leaf litter and among the roots of ferns in a secondary hardwood forest on the western slope of Monte Iberia. The find was published in the journal Copeia, where the name Eleutherodactylus iberia was introduced.
E. iberia is physically similar to E. limbatus and E. orientalis, but it is generally darker and the lines on its back do not extend as far to the rear. Because of the extreme miniaturization of the species, it possesses fewer teeth than related species and a laryngeal apparatus comparable in size to the head of a pin (resulting in a high-pitched call of a series of irregular chirps, comparable to other species of the genus).
Reproductive information is extremely limited. The female specimen which was the sole source of data thus far was found beside an egg, suggesting E. iberia lays a single egg in each clutch and the parents are closely involved in raising the young (as is common with animals which birth few offspring a time).
Only two isolated populations are known to exist, both in the Holguín Province of eastern Cuba at elevations under 600 m above sea level. The first location is on top of the Monte Iberia tableland where the frog was discovered. The second is smaller (less than 100 km2) and sparsely occupied, near Nibujón at sea level. This latter area has suffered great disturbances over the past 40 years from human activities.
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- Hedges, B.; Díaz, L. (2004). "Eleutherodactylus iberia". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 24 April 2014.
- Estrada, A. R.; S. B. Hedges (1996). "At the lower size limit in tetrapods: a new diminutive frog from Cuba (Leptodactylidae: Eleutherodactylus)". Copeia. 1996: 852–859. JSTOR 1447647. doi:10.2307/1447647.
- Frost, Darrel R. (2015). "Eleutherodactylus iberia Estrada and Hedges, 1996". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 19 December 2015.
- "Eleutherodactylus iberia". AmphibiaWeb: Information on amphibian biology and conservation. [web application]. Berkeley, California: AmphibiaWeb. 2014. Retrieved 24 April 2014.
- "Frogs on all continents except Antarctica". Interesting Animals. Fascinating facts & amazing stories. Retrieved 12 June 2007.
- Walters, Mark Jermoe (May 1997). "Spotting the smallest frog: as hopes fades for one species, a tiny frog comes into view - discovery of Eleutherodactylus iberia". Animals. Retrieved 19 June 2007.
- US NSF - News - Biotic Surveys Program Uncovers Smallest Frog, Frontiers, September 1997
- Global Amphibian Assessment - Detailed Report
- Rodríguez Gómez, Ariel; Alonso, Roberto (2000). "Threatened Amphibians of Cuba". FrogLog. 37: 5–6.
- InfoNatura - Detailed Report
- AmphibiaWeb: Eleutherodactylus iberia – features a more detailed physical description