Tag / ecosystem
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A world without men
Does evolution still happen today? In 1997 a German aquarist was very surprised: he had a single marble crayfish (Procambarus fallax) in his tank. It was a female crayfish, which suddenly started to reproduce. After three to six weeks, about 120 young animals develop from the eggs. This was nice at first, but became annoying…
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The Killer Mice of Marion Island
Ecosystems are complex. Some are as stable as a rock, while others are extremely sensitive to the smallest external influences. Animal dispersal and migration have a massive impact on ecosystems. Not only does the migrating species change the environment, it brings with it microorganisms and plant seeds and thus change biodiversity. “Stable ecosystems” do not…
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