Alaska has a new butterfly
Alaska has a new butterfly This image provided by lepidopterist Andrew Warren shows the newly discovered Tanana Arctic butterfly. (Andrew Warren/Florida Museum of Natural History via AP)
Alaska has a new butterfly
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A new species of butterfly could provide clues about Alaska's geological history. It also could help scientists learn about the state's changing climate. This is according to a University of Florida researcher.
The research comes from lepidopterist Andrew Warren. He suggests that the newly discovered Tanana Arctic butterfly evolved from the offspring of two related butterfly species. They are the Chryxus Arctic and the White-veined Arctic. He thinks all three species lived in the Beringia region. This was before the last ice age. The story was reported in The Daily News-Miner. The newspaper is based in Fairbanks, Alaska.
Scientists have been seeing the Tanana Arctic butterfly for more than 60 years. It is similar to the Chryxus Arctic. That led them to believe it was the same species. Warren noticed its distinct characteristics. He is senior collections manager at the McGuire Center for Lepidoptera and Biodiversity at the Florida Museum of Natural History. It is on the UF campus in Gainesville.
The Tanana Arctic has white specks on the underside of its penny-colored wings. They give it a "frosted" appearance. It is larger and darker than the other species.
It also has a unique DNA sequence. It is very similar to those in nearby populations of White-veined Arctics, said Warren. This has led to the hypothesis that the new species is a hybrid.
More field research is needed. Scientists want to find out whether the Tanana Arctic also exists further east into the Yukon. Arctic butterflies live in environments that are too cold and extreme for most other butterflies. How do they survive? In part, it is thanks to natural antifreeze. Their bodies produce the antifreeze.
"Once we sequence the genome, we'll be able to say whether any special traits helped the butterfly survive in harsh environments," said Warren.
He plans to return to Alaska. He will look for the butterfly next year. Warren wants to collect new specimens in order to fully sequence the genome. It could reveal the species' history. And it could show whether it's truly a hybrid.
The Tanana Arctic lives in spruce and aspen forests in the Tanana-Yukon River Basin. Because butterflies react quickly to climate change, the new species could serve as an early warning indicator for the remote region.
"This butterfly has apparently lived in the Tanana River valley for so long that if it ever moves out, we'll be able to say 'Wow, there are some changes happening,'" Warren said. "This is a region where the permafrost is already melting and the climate is changing."

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Why might the Tanana Arctic have a “frosted” appearance?
Write your answers in the comments section below

  • brycep-kut
    3/28/2016 - 01:51 p.m.

    That is really interesting .I believe that the two types of butter fly's that bred have a type of cooler and wing pattern that is found on the new breed .or it may just have ben that pattern that neither parents have.

  • alexk-kut
    3/28/2016 - 04:59 p.m.

    one time i caught a buterfly under a cup and when i went to let it go it flew in my face and now im kinda scared of butterflys. my favorite kind of butterfly is monark

  • mattl-bel
    3/30/2016 - 09:30 a.m.

    Because it is cold alaska and to make it blend to the habitat.

  • elliew-bel
    3/30/2016 - 09:34 a.m.

    Because they are darker and their bodies produce antifreeze.

  • tylerr2-bel
    3/30/2016 - 09:34 a.m.

    Because it doesn't produce antifreeze.

  • jolenec-bel
    3/30/2016 - 09:35 a.m.

    It might because it is in he Arctic and that place is supper cold so they have that frost on them.

  • sophies-bel
    3/30/2016 - 09:38 a.m.

    It would because it would really want to blend in to its surroundings, so it can hide from preadators.

  • silverc-bel
    3/30/2016 - 09:38 a.m.

    Because the frosted appearance could help them blend in with the Alaskan surroundings.

  • ashleyc-bel
    3/30/2016 - 09:40 a.m.

    The Tanana Arctic has a frosted appearance because it is larger and darker than the other species.

  • jenniek-bel
    3/30/2016 - 09:40 a.m.

    It is cold so it helps to disguise it.

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