The arboreal frog Isthmohyla rivularis, reappears after its disappearance the end of the 80s, moved house, and moved altitude level.
Not only that: it also showed the world and scientists that still exists, even though its name is on the Red List of the International Union for Conservation of Nature (IUCN), which details the conservation status of the species .
This frog is characterized by a mouth obtuse, and dark freckles in the belly.
The species usually reproduce near streams in mountainous areas. It was cataloged as critically endangered because its population declined drastically in up to 80%, according to the IUCN.
The researcher Brian Kubicki, Costa Rican Amphibian Research of Center, was responsible for recently discovered a population of Isthmohyla rivularis in the foothills of Turrialba Volcano, central Caribbean country.
The Isthmohyla rivularis is property of Costa Rica and northwestern Panama. At the end of the 80 disappeared from Monteverde, Tapantí and Tables to reappear in Monteverde in 2007 and near the Barva volcano in early 2012.
Although, there were previous records of the species, the highlight of this find-as-scientist Kubicki is the frog appeared in different altitudinal range as it is in the mountains, but higher than previously thought.
The species is characteristic of areas that are between 1210-2040 meters above sea level (masl).
This is stated in Amphibians and Reptiles of Costa Rica: A Herpetofauna Between Two Continents, Between Two Seas, Jay Savage, published by the University of Chicago. However, “the Isthmohyla rivularis was found at a height of 2,300 m. s. n. m., almost 260 meters higher than its known range, so you can say that this site is new, “said Kubicki.
The lack of exploration may be the reason why these frogs were not previously discovered on the slopes of Turrialba volcano, suggested the scientist.
However, there may be another cause of the change in altitude of nearly 260 meters.
It is possible that species are extending their roles upward in response to climate change, said the renowned herpetologist Alan Pounds.
However, Pounds declared that still needed information to say with certainty that this is the reason in this particular case.
Pounds considered it important to monitor these frogs populations and sites where these may exist, to know their condition.