Observations of the tropical nitrogen (N) cycle over the past half century indicate that intact
tropical forests tend to accumulate and recycle large quantities of N relative to temperate …

New techniques have identified a wide range of organisms with the capacity to carry out
biological nitrogen fixation (BNF)—greatly expanding our appreciation of the diversity and …

Phosphorus (P) limits productivity in many ecosystems and has the potential to constrain the
global carbon sink. The magnitude of these effects depends on how climate change and …

In the Jasper Ridge Global Change Experiment – an annual grassland with elevated carbon
dioxide (CO 2 ), nitrate deposition, temperature, and precipitation – we used six indices of …

Accurately quantifying rates and patterns of biological nitrogen fixation (BNF) in terrestrial
ecosystems is essential to characterize ecological and biogeochemical interactions, identify …

Biological nitrogen fixation (BNF) is the major nitrogen (N) input in many terrestrial ecosystems,
yet we know little about the mechanisms and feedbacks that control this process in …

Nutrient limitation to net primary production (NPP) displays a diversity of patterns as ecosystems
develop over a range of timescales. For example, some ecosystems transition from N …

The intermittent upwelling hypothesis (IUH) predicts that the strength of ecological subsidies,
organismal growth responses, and species interactions will vary unimodally along a …

Symbiotic nitrogen (N) fixers are critical components of many terrestrial ecosystems. There
is evidence that some N fixers fix N at the same rate regardless of environmental conditions (a …

Ecosystem carbon (C) balance is hypothesised to be sensitive to the mycorrhizal strategies
that plants use to acquire nutrients. To test this idea, we coupled an optimality‐based plant …