Dustin Reichard

@JuncoWren

of Animal Communication | Behavioral | | Field Biologist | Assistant Professor at OWU | 2016 tweets from students

Vrijeme pridruživanja: kolovoz 2016.

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  1. Prikvačeni tweet
    9. ruj 2019.

    Thrilled to share this new preprint! It's been a long road for these data...one that started with a shipment of live juncos from California to Indiana in 2007. Thanks to my coauthors and others not on twitter.

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  2. prije 22 sata

    Last night I dreamt that I spent a lecture racing platypuses with my students. I guess I did spend the evening watching the Australian team compete on American Ninja Warrior. But still, it was a WEIRD dream...

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  3. 2. velj

    Open Science policies are certainly a step in the right direction. The current situation has made that all the more evident. It also highlights the importance of replication and publishing negative results, two things that are critical but incredibly undervalued. (13/n)

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  4. 2. velj

    From the experience I learned to always triple check my data. When you get an exciting result, take a breath and make sure it’s real before you move ahead. Mistakes will happen, and our reward system tends to favor quantity over quality, which can be a recipe for disaster. (12/n)

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  5. 2. velj

    I re-ran the statistics with the correct data…no treatment differences. The significant effect was totally due to random chance. We were floored. That promising experiment became a two-sentence quip in my dissertation rather than an entire chapter. No publication. (11/n)

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  6. 2. velj

    Then I noticed a HUGE error. I had accidentally copied the blinded corticosterone data from my collaborator’s file into a spreadsheet with the individual rows sorted a different way. The copying error had effectively randomized the hormone values across treatments. (10/n)

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  7. 2. velj

    Although not what we hoped for, this was a COOL RESULT, and we started to think about where we could publish it. We weren’t aware of any other data that showed such a relationship, so it seemed to be novel. (9/n)

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  8. 2. velj

    The corticosterone levels on the other hand showed something interesting. Females that heard male song of either type had LOWER corticosterone levels relative to controls! It was almost as though hearing song had a “soothing” effect (to anthropomorphize). (8/n)

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  9. 2. velj

    The estradiol data were a bust – most of the females had levels that were so low that they weren’t detected by our assay. Detectability is a common problem with estradiol EIAs, so we were disappointed, but not surprised. (7/n)

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  10. 2. velj

    Each collaborator was blind to song treatment during the hormone assays, so it was up to me to pair the hormone measures from their spreadsheets to the appropriate treatment groups and analyze the data. (6/n)

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  11. 2. velj

    I conducted the playbacks, and we collected blood samples after 45 minutes of song stimulus and multiple days of song. One collaborator measured estradiol levels in the blood, and the other measured corticosterone. (5/n)

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  12. 2. velj

    In other species, female hormone levels change when they are stimulated by male courtship, so I teamed with two other graduate students to test whether female juncos that heard short-range song had different hormone levels than females that heard long-range song. (5/n)

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  13. 2. velj

    Male response was easy to measure, but I also wanted to know if females responded differently to short-range song, a prediction of the hypothesis that it was a courtship signal. We tried to test that question multiple ways, but everything failed. Science is hard! (4/n)

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  14. 2. velj

    The short-range song is substantially more complex than long-range song and males sing it while courting females. Males respond most aggressively to short-range song playback, presumably because it’s interpreted as a rival male courting their mate! (3/n)

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  15. 2. velj

    Some background – for almost my entire career I’ve studied Dark-eyed Junco song, specifically the structure and function of the two types they sing, long-range (broadcast) song and short-range (soft) song. (2/n)

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  16. 2. velj

    It’s been a weird week in Behavioral Ecology. I think this situation presents a teachable moment and a time for reflection, so I wanted to share a time that I almost unintentionally published flawed data. A thread (1/n).

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  17. 2. velj

    Grading on my back porch in early February! Maybe Phil was right about an early spring? Please ignore the horrible date typo in the header. At least my students found it hilarious.

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  18. proslijedio/la je Tweet
    2. velj

    This was Stephen J. Gould’s favorite example of an “organ of extreme perfection” sensu Darwin, that evolved through gradual steps...it is *of course* driven by a parasitic life history. I urge you to watch this. It’s one of the most amazing adaptations...

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  19. proslijedio/la je Tweet
    29. sij

    german word for the feeling when your question unlocks one of the secret slides after the talk

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  20. 29. sij

    Dear REU and other summer internship programs, You are killing me with your unique "Recommendation Forms" rather than simple requests for letters of recommendation. This approach is compounding an already heavy burden for me. Signed, A busy professor at a SLAC/PUI.

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  21. 28. sij

    Biology of East Africa has been approved for Spring 2021 . My first time teaching the course and first time traveling to Africa (Tanzania)! Lots of new birds to learn. See you there ?

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