![]() ![]() This is particularly important for species that will be impacted by climate change where their current range may not exist in the future.Christmas Island blue-tailed skink (Cryptoblepharus egeriae) ![]() Their reintroduction if it continues to be successful could benefit other species by showing the benefits of introducing species outside their range to maintain species in the wild. ![]() The Christmas Island blue-tailed skink is a small lizard known for its striking iridescent blue tail, which was once found all over the island. In one Australian example, changing habitat and introduced species triggered a decline in native lizards on Christmas Island in the 1970s, with two species rescued into human care in 2009. Przewalski's horse in Central Asia disappeared from the wild in 1969 and was reintroduced in 1997. A further 21 EW species dating back to 1950 have had their status change-12 have been returned to nature, but nine have gone extinct. Hogg and colleagues examined 84 EW species on the 2022 IUCN Red List, 72 of which remain in the category while four have become extinct. She is also a member of a global task force of the International Union for Conservation of Nature (IUCN), whose mission is to develop methods to boost the profile of EW species.ĭr. Hogg is part of the University of Sydney's School of Life and Environmental Sciences and co-leads the Australasian Wildlife Genomics Group. Carolyn Hogg, co-author of the study, said.ĭr. "The loss of these species can have a ripple effect on entire ecosystems, and if we don't take urgent action, the consequences could be catastrophic," Dr. Species include the Sihek (Guam kingfisher), the ʻalalā (Hawaiian crow) and Partula snails from the South Pacific and in Australia, the Christmas Island blue-tailed skink and Lister's gecko. The study, published in Science, found species categorized as extinct in the wild (EW)-populations solely found outside their natural habitat, such as in captivity-could have their declines prevented and reversed with urgent international effort. ![]()
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