Sentence examples for have existed over from inspiring English sources

Positive relations between biodiversity and pastoral livelihoods have existed over the long term, and a picture of a harmonious co-existence has emerged (ILRI 2006).

"They have existed over time and space.

Instead, when stability and rule of law have existed over the past three decades, they have almost solely been the function of an Islamic court system.

The table on page 305 lists the ten financial-sector funds that have existed over the past decade.

These potential habitats are in high abundance on Mars where impact crater habitats could have existed over geologic time periods of billions of years, suggesting that impact-shocked rocks are important sites to search for biomolecules in extraterrestrial life detection strategies.

Prior to the current bridge, four other bridges have existed over the Indian River Inlet at this location, built in 1934, 1938, 1952, and 1965.

"The agricultural system that we have today is designed to maximize production within a climate system that has existed over the past several thousand years," Brown told the Harvard Crimson.

This ad — and the rhetoric the campaign is using around it — challenges the entire logic of capitalism as it has existed over several decades.

Re "Who Are Those Guys?" (F.Y.I., July 13): Confusion has existed over the temporary addresses of Butch Cassidy and the Sundance Kid during their stays in New York.

The meeting was called to figure out a united response to the spiraling violence between Israeli troops and Palestinians in the West Bank and Gaza, violence that prominent figures on both sides believe has effectively derailed the peace process as it has existed over the last seven years.

Extensive production systems were associated with traditional cultural practices and hence represent a human-animal association that has existed over historical periods of time.