Human Presence Alone Alters Wildlife Behavior, COVID Lockdown Study Finds
A study released on May 21 in Science indicates that the behavior of wild animals is notably influenced by human activity. Researchers analyzed GPS data from more than 4,500 animals, encompassing 22 bird species and 15 mammal species, alongside cellphone location data across the U.S. They focused on movement patterns from January through August in 2019 and 2020. During the COVID-19 lockdowns, two-thirds of the species altered their range or habitat niche. For instance, common ravens increased their range by ten square miles weekly, whereas coyotes reduced theirs by four square miles. The effects were more pronounced in natural settings. This research, part of the Covid-19 Bio-Logging Initiative, emphasizes the need for conservationists to account for habitat changes and human actions. Co-authors include Ruth Oliver, Scott Yanco, and Walter Jetz.
Key facts
- Study published May 21 in Science
- Analyzed GPS tracking data from over 4,500 animals (22 bird species, 15 mammal species)
- Compared movement patterns from January to August in 2019 and 2020
- Used anonymized cellphone location data in the United States
- About two-thirds of species changed range or habitat niche during lockdowns
- Common ravens expanded range by 10 square miles per week per animal when humans present
- Coyotes shrank range by roughly 4 square miles when humans present
- Impacts larger in natural environments like national parks
Entities
Institutions
- University of California, Santa Barbara
- Smithsonian’s National Zoo and Conservation Biology Institute
- Yale University
- Michigan State University
- New York Times
- Covid-19 Bio-Logging Initiative
Locations
- United States
- Longmont
- Colorado