Exploring the characteristics of ecosystems and the factors affecting their distribution. This special also looks at the threats they face and considers their impact on an ecosystem's dynamic ...

Common diagnostic features of wetlands are hydric soils and hydrophytic vegetation. NRC 1995 Table 1: Excerpts from three wetland definitions distinguishing wetland habitats from other ecosystems ...

Ecosystems in the Southern Ocean, the body of water surrounding Antarctica, are under threat from climate change. The area's inhabitants, from whales to krill to phytoplankton, face changes such ...

Trophic cascades were originally thought to be rare, but now we understand that they occur across diverse terrestrial, freshwater and marine ecosystems, and are common features of many green plant ...