Snow flies (Chionea) are wingless crane flies that live in cold, alpine environments across the Northern Hemisphere. In Washington, we have seen them running around on fresh snow up to elevations of 9000 feet and at temperatures below –10 °C. (2/n)pic.twitter.com/UIoUe4bAFL
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Adult snow flies are not believed to eat; they probably stock up on energy stores as larvae and then just drink snow melt to stay hydrated as adults. Although not much is known about their life history, Chionea larvae have been found living in rodent burrows. (3/n)pic.twitter.com/sos34eoiEO
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Due to the fact that they live in extreme environments, snow flies have been very difficult to study. The goal of the
@snowflyproject is to get backcountry skiers and mountaineers to help us collect snow flies in the Pacific Northwest and beyond. (4/n)pic.twitter.com/dSWhjzs2ICPrikaži ovu nit -
The
@snowflyproject will provide numbered collection tubes that you can pick up@UW with instructions on our website (http://snowflyproject.org ) on how to collect, document, and deliver your snow fly specimens. (5/n)pic.twitter.com/TZcAiO3VYw
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Why do we want to study snow flies? Our goal is to understand the physiological mechanisms that allow them to live in cold environments. We have observed snow flies running around at ambient temperatures where other insects are frozen, below –10 °C. (6/n)pic.twitter.com/53yQVDZi90
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Because most insects do not actively regulate their body temperature like warm-blooded animals, snow flies must possess adaptations that allow them to live and move in extreme cold. (7/n)
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In my lab,
@skbrannoch will research biophysical mechanisms that allow Chionea neurons to transmit electrical signals at low temps. She will use ephys & behavior to compare the thermal limits of Chionea neurons to those from Drosophila, a related non-cold tolerant fly. (8/n)pic.twitter.com/TmRaI7uUWM
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We will also be shipping snow flies to our collaborators in the
@GallioLab at@NorthwesternU and the@MarcusStensmyr at@lunduniversity, who will sequence and analyze the Chionea genome to understand the genetic basis of cold adaptation and thermal preference. (9/n)pic.twitter.com/S0XKO2fPJE
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You can sign up to help collect on our website (http://snowflyproject.org ), follow us on twitter and instagram (
@snowflyproject), and stay tuned for a constant stream of wildly fascinating and provocative snow insect content. (10/n)pic.twitter.com/2r7gb4DMN2
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Thanks to Robin of the Living Snow Project (http://kodnerlab.wordpress.com/ ) for inspiration and valuable advice, those who have already helped with collecting snow flies (
@KameronDHarris,@thefreemanlab), and the folks at @nwac for advice and support. (11/n)Prikaži ovu nit
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