Abstract Goal, Scope and Background Humans now strongly influence almost every major
aquatic ecosystem, and their activities have dramatically altered the fluxes of growth-limiting …

Seagrasses cover about 0.1–0.2% of the global ocean, and develop highly productive
ecosystems which fulfil a key role in the coastal ecosystem. Widespread seagrass loss …

This new edition of Invasion Ecology provides a comprehensive and updated introduction to
all aspects of biological invasion by non-native species. Highlighting important research …

Agriculture and urban activities are major sources of phosphorus and nitrogen to aquatic
ecosystems. Atmospheric deposition further contributes as a source of N. These nonpoint …

Nitrogen is a key element controlling the species composition, diversity, dynamics, and
functioning of many terrestrial, freshwater, and marine ecosystems. Many of the original …

In the mid-1800s, the agricultural chemist Justus von Liebig demonstrated strong positive
relationships between soil nutrient supplies and the growth yields of terrestrial plants, and it …

They may influence us as individuals by their encouragement and guidance; they may affect
their community through their untiring commitment to service and the greater good; or they …

Since 1900, 123 freshwater animal species have been recorded as extinct in North America.
Hundreds of additional species of fishes, mollusks, crayfishes, and amphibians are …

We present estimates of total nitrogen and total phosphorus fluxes in rivers to the North
Atlantic Ocean from 14 regions in North America, South America, Europe, and Africa which …

Human activities have roughly doubled the amount of reactive N that enters the element's
biospheric cycle. Crop production is by far the single largest cause of this anthropogenic …