Tag Archives: definition

In Defense of Aliens

It's important to remember that not all alien species are harmful, and we shouldn't treat them all as such

Building on last week’s article on defining invasive and alien species as well as the work of Professor Mark Davis, I am going to do the unimaginable for an ecologist and argue that maybe alien species aren’t always a bad thing. I want to emphasize that maintaining biodiversity is essential, but maybe we should focus on the role of species in their environment rather than their place of origin.

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Defining an Invader

With the rebranding of Nrwaoys' Black List as the Alien Species List, we look at what makes a species alien and/or invasive (Pictured: The invasive Yellow Sweet Clover)

Two weeks ago, Norwegian Science Institute Artsdatabanken (ADB) announced that they would be changing the name of their invasive and alien species index. Formerly known as the Black List, the institute decided to use a name with less negative connotations, “Fremmedartslista“, loosely translated, the Alien Species list. Given this series’ focus on species from that list, it seems like an appropriate time to look at how we define the terms ‘alien’ or ‘invasive’ species.

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