Archive: Marra Lab

16 Articles

All
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 numbers…

March 8, 2023

All
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

All
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

All
Scholarship

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

All
Scholarship

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

All
Scholarship

West Nile virus emergence and large-scale declines of North American bird populations

This 2007 article in Nature, coauthored by Dr. Marra, demonstrates the potential impacts of an invasive species on a diverse faunal assemblage across broad geographical scales,…

May 16, 2007