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Christopher J. Sullivan, PhD

@sullivan-fisheries.bsky.social

77 Followers

115 Following

Assistant USGS Coop Unit Leader and Assistant Professor at Cornell University | https://sullivanfishlab.weebly.com/

  1. Individual-based models reveal thermal refuges insufficient for brown trout survival during extreme heat events, predicting up to 86% mortality despite refuge availability. New paper! besjournals.onlinelibrary.wiley.com/doi/10.1111/...

    While our model assumes static thermal refuge conditions due to data limitations, our findings highlight the limits of riverscape thermal refuges as a conservation tool under intensifying climatic co...

    Warming riverscapes annually challenge the role of thermal refuges for thermoregulating salmonids

    While our model assumes static thermal refuge conditions due to data limitations, our findings highlight the limits of riverscape thermal refuges as a conservation tool under intensifying climatic co...

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  2. 💧 Hidden life in groundwater

    Underground microbes react differently to climate extremes.

    Connected aquifers bounce back from short shocks but suffer in the long run, while isolated ones resist quick changes but weaken over time.

    🔗 www.nature.com/articles/s43...

    #SciComm 🧪 #ClimateCrisis

    Microbiomes in connected aquifers are more vulnerable to surface disturbances but highly resilient, while those in hydrologically more isolated aquifers resist short-term change yet lose stability und...

    Groundwater microbiomes balance resilience and vulnerability to hydroclimatic extremes - Communications Earth & Environment

    Microbiomes in connected aquifers are more vulnerable to surface disturbances but highly resilient, while those in hydrologically more isolated aquifers resist short-term change yet lose stability und...

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  3. Curious about how lake water temperatures may change by the end of the 21st century? Check out our new paper in L&O!

    aslopubs.onlinelibrary.wiley.com/doi/10.1002/...

    Temperate lakes are undergoing climate-driven alterations in their thermal regimes, changing their ecology. Previous efforts to understand temperature changes have overlooked multi-dimensional temper...

    Climate‐driven alterations of lake thermal regimes

    Temperate lakes are undergoing climate-driven alterations in their thermal regimes, changing their ecology. Previous efforts to understand temperature changes have overlooked multi-dimensional temper...

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  4. The first paper from my PhD is out now! 🦪

    The presence of pea crabs (a bivalve kleptoparasite) is associated with higher mercury concentrations in their host oysters.... and more!! @noeliemolbert.bsky.social @jebrandt.bsky.social

    www.sciencedirect.com/science/arti...

    Contaminants and parasites are ubiquitous in aquatic environments and their interactions can have detrimental effects on host physiological and ecolog…

    Macroparasite infection and mercury contamination as coupled stressors in Eastern oysters

    Contaminants and parasites are ubiquitous in aquatic environments and their interactions can have detrimental effects on host physiological and ecolog…

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  5. Fam — here’s a nice overview of the 43 nationwide Cooperative Fish & Wildlife Research Units, which have been a lasting model for wildlife research since the 1930s, created by wildlife science pioneers such as Aldo Leopold & Ding Darling. 🐟🦌🦆🦃🦎

    Link: wildlifemanagement.institute/outdoor-news...

    The Cooperative Research Units Program is excited to release two new fact sheets: “A Hawk’s View of 2024” and “10-Year Overview.” The fact sheets highlight our program’s success in training of the nex...

    Cooperative Research Units Program Unveils Two Informative Fact Sheets

    The Cooperative Research Units Program is excited to release two new fact sheets: “A Hawk’s View of 2024” and “10-Year Overview.” The fact sheets highlight our program’s success in training of the nex...

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  6. New paper out by former @uconn.bsky.social EEB grad student Grace Vaziri: www.sciencedirect.com/science/arti... Does thermal stress change wood frog microbiomes? (not so much) Stay tuned for more work by Grace on overwinter immune physiol of wood frogs

    Climate change will increase the frequency and severity of temperature extremes. Links between host thermal physiology and their gut microbiota sugges…

    Gut microbiomes are largely unchanged when exposed to their amphibian host's latitudinally variable upper thermal limit

    Climate change will increase the frequency and severity of temperature extremes. Links between host thermal physiology and their gut microbiota sugges…

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