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Decline in amphibian populations. The Golden toad of Monteverde, Costa Rica, was among the first casualties of amphibian declines. Formerly abundant, it was last seen in 1989. Since the 1980s, decreases in amphibian populations, including population decline and localized mass extinctions, have been observed in locations all over the world.
The World Wildlife Fund’s Living Planet Report 2022 found that wildlife populations declined by an average 69% since 1970. [1] [2] [3]The Living Planet Index (LPI) is an indicator of the state of global biological diversity, based on trends in vertebrate populations of species from around the world.
Dramatic declines in amphibian populations, including population crashes and mass localized extinction, have been noted since the late 1980s from locations all over the world, and amphibian declines are thus perceived to be one of the most critical threats to global biodiversity. [170]
Chytridiomycosis has been linked to dramatic population declines or extinctions of amphibian species in western North America, Central America, South America, eastern Australia, east Africa , [1] and Dominica and Montserrat in the Caribbean. Much of the New World is also at risk of the disease arriving within the coming years. [2]
Hylomantis lemur (Boulenger, 1882) Phyllomedusa lemur (Boulenger, 1882) Agalychnis lemur, the lemur leaf frog or lemur frog, is a species of frog in the subfamily Phyllomedusinae. [3][4] It is found in Costa Rica, Panama, and adjacent northwestern Colombia. [3] It is classed as Critically Endangered and threatened by the fungal disease ...
The study "is basically saying the rate of decline is leveling out," said Philip Hamilton, a senior scientist at the New England Aquarium Anderson Cabot Center for Ocean Life and the ...
At threat are 41% of amphibian species, 33% of reef-building corals, ... [23] specified through criteria such as rate of decline, population size, ...
However, many of the causes of amphibian declines are still poorly understood, and the topic is currently a subject of ongoing research. Modeling results found that the current extinction rate of amphibians could be 211 times greater than the background extinction rate. This estimate even goes up to 25,000–45,000 times if endangered species ...