ecosystem

A new study based on data collected over the last 100 years shows that many of the species unique to the Andes-Amazon basin of Peru and Bolivia lack vital national-level protection.

A gallery of the rare species and ecosystems endemic to the Andes-Amazon basin of Peru and Bolivia.

Even after 100 years, restored wetlands rarely equal their conditions of the past.

Climate change affects elk foraging, which affects the densities of plants, which affects the populations of nesting birds.

Hundreds of non-native species thriving at expense of native ecosystems.

By substituting one tortoise for extinct ones, scientists say they are healing an island.

The fight against Asian carp turns delicious.

Evidence is mounting that vines are becoming more abundant in tropical forests of the Americas, raising the possibility of major ecosystem change.

Invasive grass species out-competes natives grasses, destroys grazing land.

Magma flows below, heats seafloor mud, releasing gases and sustaining life.