External Press

Published August 21, 2023

Those species may have trouble as weather becomes warmer and more unpredictable

When we think of climate change, we often think about warming trends. But climate change is also ushering in more unpredictability and more extreme weather events. That unpredictability may pose a particular risk to small migratory birds, researchers found.

Published December 9, 2022


WILDLIFE IS DISAPPEARING around the world, in the oceans and on land. The main cause on land is perhaps the most straightforward: Humans are taking over too much of the planet, erasing what was there before. Climate change and other pressures make survival harder.

Published August 1, 2022


Stunningly patterned in gray with rusty flashes and black streaks, Flammulated Owls are rightfully a top target for many birders. But their cryptic coloration makes them challenging to find, especially during the daytime. As a result, they were once considered uncommon to rare on the landscape. However, they may be more common than birders think.

Published March 24, 2022


“The past 2 weeks have been very good—and very bad—for Martin Wikelski and Walter Jetz. In a key proof of principle of their space-based wildlife tracking project, they published a paper tracing the travels of 15 species, including the meanderings of an endangered saiga antelope across Central Asia and the marathon flights of cuckoos from Japan to Papua New Guinea.

Published March 13, 2022


A newly published study led by Yale School of the Environment researchers found that a projected urban expansion of up to 1.53 million square kilometers over the next three decades threatens the survival of more than 800 species — but also that a focus on urban planning that protects habitats can mitigate the impact.

Published March 3, 2022


According to Walter Jetz, an ecologist who leads Yale University’s biodiversity mapping efforts, it’s essential that policymakers make data-driven decisions about which areas to protect. Otherwise “you might gain a large percentage of area protected but you have done very little in actually safeguarding species.”

Published January 1, 2022


What has been the impact of policies adopted at the last U.N. Biodiversity Summit in 2010?

Published November 18, 2021


Other researchers, meanwhile, are trying to use satellite-derived information about vegetation to gain insights into the animals living there. Walter Jetz, a biodiversity scientist at Yale University, and colleagues have been developing computer models that incorporate data from the research literature about the conditions that various animal species require to thrive, such as plants used for food or nests.

Published October 1, 2021


Decades ago, Robert MacArthur and E.O. Wilson pioneered a theory to assess how larger conserved land areas support the survival of more species. Their original theory, developed in the 1960s, was born of research on island biogeography with the observation that larger islands contain more species, but it has since been applied more broadly to species preservation.

Published August 11, 2021


As the world’s nations prepare to set new goals for protecting biodiversity, Yale researchers have identified where data gaps continue to limit effective conservation decisions.