What is a pond?! We’re excited to announce our new publication rdcu.be/cP6tH in Scientific Reports that compiles existing scientific and legal pond definitions, compares how ponds functionally compare to lakes and wetlands, and proposes an evidence-based pond definition. 1/n

Who knew duckweed can have a significant effect on ponds producing methane and carbon dioxide? Excited to announce our new publication doi.org/10.3389/fenvs.… in Front. Environ. Sci. James B Cotner

University of Minnesota researchers found that ponds covered with a floating plant called duckweed produced more methane, one of the most potent greenhouse gases that contribute to climate change. mprnews.org/story/2022/10/…

New pub alert #AGUPubs! Small, shallow waterbodies are among the most productive freshwater ecosystems on the planet! In this GLEON #ponding collaboration, we examined ecosystem metabolism in 26 shallow waterbodies in N. America and Europe. agupubs.onlinelibrary.wiley.com/doi/abs/10.102… (1/4)

GLEON We observed high rates of GPP (mean 8.4 g O2 m-3 d-1) and R (mean 9.1 g O2 m-3 d-1), while NEP varied from net heterotrophic to autotrophic. Metabolism rates were affected by depth and plant cover; the shallowest waterbodies had the highest GPP, R, and most variable NEP. (2/4)

GLEON We also explored how well metabolism models (designed for bigger, deeper lakes) work for ponds. Metabolism models work best in sites that are more productive and have bigger diel oxygen swings. Models performed poorly in less productive / more heterotrophic systems (3/4)

GLEON Our study provides more evidence that ponds are truly biogeochemical hotspots! This work was such a fun collaboration years in the making. Joe Rabaey David C. Richardson James B Cotner Eric Moody and many more not on here! (4/4)

Water column mixing is a huge driver of GHG emissions, even in shallow ponds! In our study, we monitored GHG patterns in 4 ponds for over a year, and mixing played a huge role in storage and emission dynamics. James B Cotner Last PhD Chapter is PUBLISHED!! doi.org/10.1007/s10533…