Land cover change caused by humans represents a major threat to the long term viability of natural areas. It is important to accurately classify and map existing natural areas so that this threat can ...

1. Savanna ecosystems – defined by the coexistence of trees and grasses – cover more than one-fifth the world's land surface and harbour most of the world's rangelands, livestock and large mammal ...

As they roam around the African savanna in search for food, giraffes and elephants alter the diversity and richness of its vegetation. By studying the foraging patterns of these megaherbivores across ...

Not for a century have such thunderous hoofs struck the tree-studded grasslands of northern Anoka County. Under clear June skies, a herd of young bison barreled from trailers and tore through fields ...

Scientists using chemical isotopes in ancient soil to measure prehistoric tree cover--in effect, shade--have found that grassy, tree-dotted savannas prevailed at most East African sites where human ...

In 1980, when Tom and Kathie Brock’s children were 3 and 5, they considered buying a vacation home “up north,” where Tom, a University of Wisconsin-Madison microbiology professor, had done research on ...

A cricket fashioned from a radio; a wooden tortoise mounted on wheels; and a heron crafted from servo motors, wood and remote control equipment. These were the strange creatures roaming the 'plains' ...