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Endangered (EN) species are considered to be facing a very high risk of extinction in the wild. As of September 2021, the International Union for Conservation of Nature (IUCN) lists 1085 endangered amphibian species. [1] Of all evaluated amphibian species, 14% are listed as endangered. No subpopulations of amphibians have been evaluated by the ...
Critically endangered (CR) species face an extremely high risk of extinction in the wild. As of December 2021, the International Union for Conservation of Nature (IUCN) lists 673 critically endangered amphibian species, including 146 which are tagged as possibly extinct. [1] [2] 9.2% of all evaluated amphibian species are listed as critically ...
See: List of endangered amphibians, List of critically endangered amphibians. Vulnerable, endangered and critically endangered species are collectively referred to as threatened species by the IUCN. Additionally 1567 amphibian species (24% of those evaluated) are listed as data deficient, meaning there is insufficient information for a full
As of September 2016, the International Union for Conservation of Nature (IUCN) lists 402 near threatened amphibian species. [1] 6.2% of all evaluated amphibian species are listed as near threatened. No subpopulations of amphibians have been evaluated by the IUCN. This is a complete list of near threatened amphibian species evaluated by the IUCN.
Desert rain frogs are terrestrial breeders meaning that the eggs develop in a burrow and one of the adult frogs remains in the area of the nest. [4] The eggs hatch into froglets, which do not go through a free-living tadpole stage like many other frog species.
Titicaca water frogs tend to be most active during the night. [24] The Titicaca water frog breeds year-round in shallow coastal water where the female lays about 80 to 500 eggs. [4] [21] Amplexus lasts one to three days. [16] The "nest" site is typically guarded by the male until the eggs hatch into tadpoles, [21] which happens after about one ...
The spermatophore sticks to her and the sperm cells swim inside her cloaca, where they attempt to fertilize her eggs. The courtship ritual can be repeated several times over a couple of hours. [39] The female lays up to 70 eggs, each about 12 millimetres (0.5 in) in diameter, and places them between rocks, where they remain under her protection ...
The Amphibian Recovery Conservation Coalition, which started in 2004, exported the endangered amphibians to the US, believing it was a better environment for the endangered species. In 2005, the Houston Zoo established the El Valle Amphibian Conservation Center (EVACC) in Panama, so the endangered frogs could have protected facilities in their ...