Joanna Blaszczak

@joannablaszczak.bsky.social

Freshwater ecosystem ecologist and biogeochemist Meet the lab: https://blaszczaklab.weebly.com/

New paper in Ecosystems led by @biogeobob.bsky.social! Fun NSF-funded collaboration tracing the immediate & delayed whole-stream respiration of dissolved organic carbon using 13C-glucose & 13C-fescue leachate additions + 13C-DIC analyses w/ Michelle Baker & Stephen Plont. 💧🌎

Title, authors, and abstract of linked paper, "Dynamics of Respired Dissolved Organic Carbon in a Stream"Figure 2 in Hall et al 2026 showing modeled immediate and delayed respiration of glucose and fescue leachate Figure 5 in Hall et al summarizing the uptake rates and fate of glucose and plant leachate in a stream.
Steve Carpenter@steve-carpenter.bsky.social · 5mo ago

Fate of respired DOC traced in an open-canopy stream in Montana; ECOSYSTEMS doi.org/10.1007/s100... Bob Hall and others @monicagturner.bsky.social

Why has woody plant density been increasing in dryland ecosystems? In a new paper in @pnas.org we show that increasing tree density in pinyon-juniper woodlands could largely be a result of long-term population growth, rather than recent anthropogenic effects. www.pnas.org/doi/10.1073/...

PNAS

Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...

pnas.org

If you're interested in benthic harmful cyanobacterial blooms and attending the 2025 Society for Freshwater Science meeting please join our special session "Uncovering the drivers and consequences of benthic harmful cyanobacterial blooms in freshwater ecosystems"!

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Did NOT see this coming!! Analysis of 2.9M rivers globally finds that, on avg 1984-2018, streamflow increased in headwaters & declined in downstream sections (1.7 times more upstream increases found than declines; ~4 times more downstream declines than increases). www.science.org/doi/abs/10.1...

More flow upstream and less flow downstream: The changing form and function of global rivers

We mapped daily streamflow from 1984 to 2018 in approximately 2.9 million rivers to assess recent changes to global river systems. We found that river outlets were dominated by significant decreases i...

science.org