Insects and other invertebrates

Insects and other invertebrates

Apart from the most important forest pests many highly protected species belong to the taxonomic group of the insects. Other invertebrates are especially active in the soil as either pests or as beneficial organisms.

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Cycles and importance of the larch budmoth

The grey larch budmoth is a small moth that reproduces in masses in a regular cycle of eight to ten years. Its caterpillars feed on larch needles, which causes larch forests to turn reddish brown during a mass outbreak.

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Insects benefit from storms in the forest

Storm-ravaged woodland is approximately twice as rich in insect species as undamaged forest. Many endangered forest insects benefit from the brighter, warmer climatic conditions there.

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Sunlight and Deadwood – a paradise for wood living beetles

Over the last three decades there have been intensive discussions about leaving deadwood in forests. It is undisputed that more deadwood needs to be left in forests if the variety of species is to be increased. New habitats for many species including rare ones are being created by additional thinning out.

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Deadwood as a habitat for insects

Deadwood is an important habitat for insects. Beetles are not just the most numerous species within the group of insects, but are also the most diversified in deadwood.

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Insects in the forest ecosystem

When naming the most important organisms in forests insects are often forgotten. They do however play a central role in plant reproduction, soil fertility, sustained forest health and diversity.

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The Natural Enemies of Bark Beetles

The biology and the environmental needs of bark beetles are already well known. The knowledge about their antagonistic agents however is limited.

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About the Biology of the Eight-Toothed Spruce Bark Beetle Species

In Switzerland, the large spruce bark beetle causes the most damage economically among all forest insects. In order to take preventative action and control measures, profound knowledge about the life of these beetles is paramount.

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  (7 articles)
Heading image: Thomas Reich