Danger lurks underground for oak seedlings

Scientists trying to understand why oaks are starting to disappear from North American forests may need to look just below the surface to find some answers.

Native street trees can boost birds' survival

As native birds continue to lose their homes due to the spread of the Australia's cities, scientists are urging city planners and householders to help save them by planting more Australian trees.

Community reluctantly bidding farewell to 600-year-old tree

For hundreds of years, an imposing white oak tree has watched over a New Jersey community and a church, providing protection from the blazing summer sun, serving as a scenic backdrop for thousands of photos and—according ...

Tree health linked to birds' response to climate change

New Research from Oxford University has revealed that shifts in the timing of egg laying by great tits in response to climate change vary markedly between breeding sites within the same woodland and that this variation is ...

New Southern California beetle killing oaks

U.S. Forest Service scientists have completed a study on a beetle that was first detected in California in 2004, but has now attacked 67 percent of the oak trees in an area 30 miles east of San Diego.

More and more emerging diseases threaten trees around the world

Diseases are among the major causes of tree mortality in both forests and urban areas. New diseases are continually being introduced, and pathogens are continually jumping to new hosts, threatening more and more tree species. ...

American oaks share a common northern ancestor

If you had been in northern Canada 45 million years ago, you might have encountered the distant ancestor of all of the oaks in the Americas. That single species gave rise to 220 more and two distinct lineages—red oaks and ...

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