On the 29th of September, 2021 the US fish and Wildlife Service declared their intention to delist 23 species from the Endangered Species Act due to extinction. The big one that got all the attention was the ivory-billed woodpecker, however the bulk of this list were eight freshwater bivalves and eleven species from the pacific, eight of those from Hawaii, including the Kauai and Maui Nukupu'u, leaving the ʻakiapolaʻau as the only living member of their genus. But how are we sure these species are extinct? That is what I hope to explain in this video.

Sources
[1] U.S. Fish and Wildlife Service proposes delisting 23 species from Endangered Species Act due to extinction: U.S. Fish & Wildlife Service. FWS.gov. (2021, September 29). Retrieved March 27, 2023, from [ Ссылка ]
[2] Bishop Museum. (2020). 'ahu'ula of king kamehameha I. Hawaii Alive. Retrieved March 27, 2023, from [ Ссылка ]
[3] Clark, M., Laut, M., Koob, G., & Young, K. (2015). 5-YEAR REVIEW. Environmental Conservation Online System. Retrieved March 27, 2023, from [ Ссылка ]
[4] "Categories and Criteria (version 3.1)". www.iucnredlist.org.
[5] Scott, J. M., Ramsey, F. L., Lammertink, M., Rosenberg, K. V., Rohrbaugh, R., Wiens, J. A., & Reed, J. M. (2008). When is an "extinct" species really extinct? gauging the search efforts for Hawaiian forest birds and the ivory-billed woodpecker. Avian Conservation and Ecology, 3(2). [ Ссылка ]
[6]Trahan, A., & Lombardi, M. (2022). Proposed Rule to Delist the Ivory-billed Woodpecker. U.S. Fish and Wildlife Service. Retrieved March 27, 2023, from [ Ссылка ]
[7] Latta, Steven C. (8 April 2022). "Multiple lines of evidence indicate survival of the Ivory-billed Woodpecker in Louisiana". doi:10.1101/2022.04.06.487399. S2CID 248087746. Retrieved 11 April 2022.
[8] Service announces 6-month extension on final decision for the ivory-billed woodpecker: U.S. Fish & Wildlife Service. FWS.gov. (2022, July 6). Retrieved March 27, 2023, from [ Ссылка ]

0:00 Hiking the Pu'u O'o trail
1:14 ʻakiapolaʻau foraging
2:27 Extinct Birds of Hawaii
6:53 How do we know a species is extinct?
8:48 Why we have to be carful when listing species as Extinct
9:11 The Ivory-billed Woodpecker Controversy
12:55 Protecting ecosystems and possibly extinct species with species we can find
14:02 Conclusion
15:01 Outro

I try to achieve the most well researched content I can, that said it is impossible to create content that is exhaustive on a given topic and therefore I implore you to investigate a given topic further.
Welcome to Ecotasia! On this channel you can find wildlife footage and short documentaries on the natural world. I am an early career biologist who was inspired by the likes of the BBC Natural History unit, PBS, and Animal Planet as a child and then more recently by various nature YouTube channels to share my love for animals and nature. My goal is to document and highlight the interesting ecology and behavior of organisms I encounter, as well as cover and elucidate conservation and biological topics. Please Subscribe so you can join me to marvel and to learn twice a month.

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