This is a preview. Log in through your library . Abstract Food web studies from a range of ecosystems have demonstrated that the fauna contributes about 30% of total net nitrogen mineralization. This ...

A microfossil assemblage from the Mackenzie delta area, arctic Canada, is described. Twenty-one species are reported, including two new species, Cyclammina arctica and Cyclammina borealis. The ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...