Archive: Marra Lab

11 Articles

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Climate Change, Policy in the Wake of Hurricanes Helene, Milton

“All of this is caused by the amount of greenhouse gasses we’re putting into the atmosphere,” Marra. …

November 8, 2024

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In the Press

Op-Ed: Restoring Ecological Belonging – A Call to Heal Our Planet

Dean Peter Marra explores three vital mindset shifts needed to rekindle our ecological belonging and address the urgent climate crisis, offering insights into overcoming the…

April 8, 2024

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In the Press

What are we gonna do about all these cats?

A question that has launched a battle between bird-loving ecologists and ardent, cat-defending activists. What should we do about an invasive species beloved by many Americans --…

February 12, 2024

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In the Press

Scientists sound the alarm over dramatic loss of 3 billion birds in North America: ‘We’re watching … extinction happen’

Peter Marra, a conservation biologist and dean of Georgetown University’s Earth Commons Institute, and his colleagues studied multiple bird-monitoring datasets and found a…

July 13, 2023

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In the Press

How to follow along on great spring bird migration

“The past 20 years have seen a true renaissance in different technologies to track bird migrations around the world at scales that haven’t been possible before,” said Peter…

April 13, 2023

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In the Press

It’s Time for a Flu Vaccine—for Birds

“The impact on wild bird populations is unprecedented,” says Peter Marra, an ornithologist and director of the Earth Commons Institute at Georgetown University. “Massive…

March 8, 2023

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In the Press

U.S., Canada have lost 3 billion birds since 1970. Scientists say ‘nature is unraveling.’

US and Canada have lost nearly 3 billion of bird population in last 50 years, according to Pete Marra, director of the Georgetown Environment. …

September 19, 2019

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Scholarship

Decline of the North American avifauna

A 2019 article published in Science and co-authored by GEI director Peter Marra reports on widespread bird population declines across North. …

September 19, 2019

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The impact of free-ranging domestic cats on wildlife of the United States

2013 Loss, Will, and Marra study suggests that free-ranging cats cause substantially greater wildlife mortality than previously thought and are likely the single greatest source…

January 29, 2013

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Conserving migratory land birds in the New World: Do we know enough?

This 2010 study with co-author Peter Marra discusses the knowledge gaps in the study of annual bird. …

March 1, 2010