Read more about the article Measuring ecological impacts of alien species
The paper is one of the outcomes of a workshop held in Leipzig in July 2013 by the sImpact working group.

Measuring ecological impacts of alien species

Alien species cause a number of impacts in the ecosystems they live in, ranging from hardly detectable to dramatic change. Measuring such impacts is not always straightforward. Furthermore, a wide range of methods and variables has been used to describe these impacts, making comparison between species and habitats difficult.

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Getting the measure of tree invasions

“If you can't measure it, you can't manage it” is, as with all such well-worn phrases, only partly true. But to adapt another such maxim, while we might be able to make progress without measurement, we do need proof to satisfy everyone else.

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