Cracking the mysterious case of dying desert forests

From above, the Southwestern U.S. is a sea of caramel and brown desert. Yet, a closer look uncovers small ribbons of green—desert forests that flourish along valuable springs and rivers. Wildlife thrives at these oases, ...

How trees cope with late spring frosts

Due to climate change, many deciduous trees leaf-out earlier. However, the risk of late spring frosts remains high and the frequency of extreme droughts is clearly increasing. Tree species able to quickly recover after frost ...

Trees can be weeds as well: Here's why that's a problem

When we think of weeds, often what comes to mind are small, quick-growing plants such as the dandelions or couch grass we might find in our gardens. You may not think of trees as being weedy.

Urban birds prefer native trees, shows long-term study

Small passerine birds, such as blue and great tits, avoid breeding in urban areas where there are many non-native trees. Chicks also weigh less the more non-native trees there are in the vicinity of the nest. This is shown ...

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