All english articles in waldwissen.net

All english articles in waldwissen.net

 
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Pioneer tree species: ecologically valuable

Pioneer tree species such as goat willow, aspen, silver birch, bird cherry or rowan/mountain ash are the engine of ecological succession in the forest. But why are these tree species so important for the biodiversity of the forest?

Red wood ants in Switzerland

Red wood ants play a vital role in our forests. With their numbers apparently in decline, it is important that we learn more about them: not only how they benefit the forest but also what they require from their habitat.

Designing bridges between Forest and schools

"Designing bridges between forest and schools" - this was the motto for the 14th European Forest Pedagogics Congress. The main topic was how new educational standards can lead young people and students closer to and into the forest.

The Sweet Chestnut: A Source of Food and Timber

The sweet chestnut was the German tree of the year in 2018. The Romans brought it here 2000 years ago, and it has provided food and wood ever since. The sweet chestnut is a warmth- and light-loving tree species that today grows primarily in southwestern Germany, in the grape-growing climate.

The European White Elm defies Dutch Elm Disease

Of the three native elm species, the European white elm is the only one to resist Dutch elm disease. As a floodplain species, it grows large buttress roots and resembles trees in tropical swamp forests. As elm wood is so rare, its price has also more than doubled in recent years.

The Asian longhorned beetle in Europe

The ALB was first spotted on European soil in 2001. Sightings of infestations have been on the rise since.

Strategies for managing invasive robinia

The North American robinia (black locust) has many positive, but also many negative characteristics. Today, it has become part of ecosystems and the cultural landscape in many places, so neither free and unlimited cultivation nor widespread active control measures make sense.

Insect decline is more extensive than suspected

Compared to a decade ago, today the number of insect species on many areas has decreased by about one third. The loss of species mainly affects grasslands in the vicinity of intensively farmed land – but also applies to forests and protected areas.

Japanese beetle – an invasive species approaching Switzerland

The Japanese beetle is heading for Switzerland. In 2017, beetles were caught for the first time in precautionary traps installed along the border with Italy. What measures can be taken to prevent its arrival?

Global trade of tree seeds can introduce harmful pests

The trade of forest tree seeds is, on a global scale, not as safe as previously believed. Insect pests and fungal pathogens associated with seeds pose a great risk to trees and forest ecosystems worldwide.

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