“Toward the Metacollection: Coordinating conservation collections to safeguard plant diversity”, is a publication that is a result of a three-year grant, “Safeguarding Plant Collections”, funded by the Institute of Museum and Library Services. It demonstrates the power of the botanic garden network and the role they play in collective conservation. Overall, stopping plant extinction.
You are here
Conservation / Tree Health
By Elizabeth Pennisi
The biggest trees, standing tall through storms and harsh winters, may look invincible. But a series of recent studies analyzing the effects of lightning, drought, and invasive pests on forests indicates that for trees, size is not strength, and forest giants are disproportionately vulnerable.
By Jeremie Richard
Before being colonised by the Vikings, Iceland was lush with forests but the fearsome warriors razed everything to the ground and the nation is now struggling to reforest the island.
The country is considered the least forested in Europe; indeed, forests in Iceland are so rare, or their trees so young, that people often joke that those lost in the woods only need to stand up to find their way. However, it wasn't always that way.
By Jane Flanagan
An invasive beetle from Asia that has infested trees lining the streets of Johannesburg’s most exclusive suburbs is sweeping across South Africa, and scientists are powerless to stop it. The only defense is to cut down and burn infected trees in the city, one of the largest urban forests in the world.
By Johnny Wood
Scientists are exploring whether coniferous trees might help to counter the effects of global warming.
Deep in Sweden’s spruce forests researchers from Lund University are studying the cooling qualities of organic compounds called terpenes, which are abundant in conifer resin and also give spruce, fir and pine trees their distinctive scent.
When released into the atmosphere, these tiny particles interact with moisture to help form clouds that reflect sunlight away from the planet’s surface.
A cold snap gripping western Canada may be just brutal enough to put a dent in Alberta's destructive mountain pine beetle. Extreme cold stubbornly lingering over the province for more than week is keeping nightly lows around the –35 C mark.
While most Albertans despair the cold, those on the front lines of the fight against the mountain pine beetle are quietly rejoicing, said Janice Cooke, an associate professor in the University of Alberta's department of biological sciences.
A landmark study from The Australian National University (ANU) has found that forest soils need several decades to recover from bushfires and logging -- much longer than previously thought.
Lead researcher Elle Bowd from the ANU Fenner School of Environment and Society said the team found forest soils recovered very slowly over many years from these events -- up to 80 years following a bushfire and at least 30 years after logging.