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Yellowstone: Wolves as ecosystem engineers

The effects of the reintroduction of wolves in Yellowstone National Park, USA, have been widely studied – the prolonged absence and then reintroduction of wolves at the top of the food chain makes this case study a great natural experiment into ecosystem dynamics. This post will collate the interesting bits from the research, and look …


Why should we bring back the beaver?

The reintroduction of the Eurasian beaver is a topic much debated across Europe and the UK, given its effects as an ecosystem engineer in rivers and streams. The species, which used to be widespread across England, Scotland and Wales, became extinct in the 16th century after widespread hunting (Countryfile, 2018). However, in recent years it …