According to the IUCN, the largest World's amphibian is listed as "Endangered".
Read more by clicking onto the "Species of the Day" link at the left column of this Blog.
30 March 2010
19 March 2010
A proposal was recently made public by the U.S. Fish and Wildlife Service and NOAA Fisheries Service to change conservation status of American Northwest Atlantic populations of loggerhead turtles (Caretta caretta) to be treated as Endangered.
Florida accounts for over 90% of loggerhead nesting in the United States. Regrettably, nesting throughout this State has declined by over 40% since1998. The greatest threat to its survival today seems to be accidental capture, injury and death in commercial fisheries.
Concern about the species was triggered during the most recent chilling event in Florida, when almost all of the turtles rescued from the cold waters were green turtles –as opposed to previous cold events, when loggerheads accounted for about half of the captures. These findings raise concern that juvenile loggerheads, as well as nesting adults, could be in decline.
Strong conservation actions need to be taken on other critical populations along the Caribbean. Populations of Caretta caretta almost disappeared from historical nesting sites in Eastern Venezuela that, according to marine turtle conservation leader Hedelvy Guada, have suffered a drastic decline in recent times. Although currently listed as “Endandered” in Venezuela, similar to the category granted by the IUCN on global terms, Guada, based on the country local nesting crashes of this species (locally known as “tortuga cabezona”, “Caguama” or Carey”) have proposed to change its conservation status to Critically Endangered. Colombian populations have, also, diminished drastically. Nesting sites in other Caribbean places are scarce, although important colonies are present in Mexico. The largest numbers of nesting sites occur in the later, as well as along the Southeast coast of the United States, and some coasts of Brazil.
Published by Enrique La Marca en 05:52
14 March 2010
Colombia is the most frog diverse country in the World. Originally believed not to have as many endangered amphibians as the neighboring Andean countries of Ecuador and Venezuela, recent studies have demonstrated that, as in these other countries, an important part of its amphibian fauna is at some kind of risk. An example of a Colombian anuran amphibian in peril is a giant species of glass frog, Centrolene ballux (common name: Burrowes’ Giant Glass Frog), which is listed as ‘Critically Endangered’ on the IUCN Red List of Threatened Species.
To learn on the causes of its decline, as well as to know on the conservation status of many other endangered species, visit the official IUCN website or click on the "Species of the Day" gadget at the rigth column of this blog, below the visitor´s statistics.
Published by Enrique La Marca en 19:17
11 March 2010
A full-color guide depicting 212 Peruvian herp species coming from Loreto is available to freely download from http://fm2.fieldmuseum.org/plantguides/guideimages.asp?ID=393
This beautiful and useful 14 pages guide is authored by Giuseppe Gagliardi-Urrutia, from the Peruvian Center for Biodiversity and Conservation.
Illustrated in the guide are 122 frogs, 1 caecilian, 2 salamanders, 2 crocodilians, 2 amphisbaenians, 32 lizards, 46 snakes and 5 turtles species.
The utility of the guide surpases that for Peruvian herp researchers and amateurs, since several of these species also occur in other South American countries.
Published by Enrique La Marca en 03:55
04 March 2010
The “Titicaca water frog” (“Rana gigante del Lago Titicaca”, Telmatobius culeus) is the World’s largest aquatic anuran amphibian.
There are reports of specimens up to 50 cm in length and weighting 1 kilogram. It is a completely aquatic species, bearing many skins folds thought to help in breathing through increased area for respiration.
It is a species endemic to Lago Titicaca, the World’s largest (204 x 65 km) and highest (3800 m) endorheic lake (that is, in a closed internal drainage basin) shared by Bolivia and Peru.
Although currently listed as “Critically Endangered” and with its habitat being protected, specimens of this unique frog are still sold for human consumption in restaurants at Lake Titicaca, and also as souvenirs or as byproducts used in traditional medicine.
Read more by checking the "Species of the Day" gadget at the right column of this blog.
Published by Enrique La Marca en 04:55
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