Top predators are essential to ecosystems: wolves revisited

In a recent post I explained how top predators are essential for healthy ecosystem function. Being a marine ecologist I obviously focused on sharks. I did, however, use the example of wolves in Yellowstone National Park in the USA and how their reintroduction lead to the reestablishment of the forest ecosystem.

Last night I discovered a video that tells the wolf story much more eloquently than I can. I have been an ecologist for nearly 20 years, I know this “story”, and I was still left amazed at the extent to which the presence of wolves improved the ecosystem and the landscape. Even more stunning to me was the multitude of pathways that this improvement takes; from direct control of deer populations to behavioural change which means that deer don’t graze in certain areas.

Not only is the video based on good quality ecology but the visuals are stunning. A must watch. Enjoy!

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