in

Central America drying

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.

Crop production and nitrogen use in European cropland and grassland 1961–2019

High variability in SSU rDNA gene copy number among planktonic foraminifera revealed by single-cell qPCR