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Content provided by Tommy's Outdoors. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by Tommy's Outdoors or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://podcastplayer.com/legal.
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209: Beavers vs Salmon - Balance The Scales with Rob Needham
Manage episode 502495864 series 1299395
Content provided by Tommy's Outdoors. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by Tommy's Outdoors or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://podcastplayer.com/legal.
Can beavers save Britain's dying rivers? Are these ecosystem engineers the key to reversing the catastrophic decline of Atlantic salmon, or do their dams create impassable barriers for struggling fish populations? With salmon numbers plummeting by 70% in just 20 years and predictions they could vanish entirely within two decades, the stakes couldn't be higher. The reintroduction of beavers to British waterways has sparked heated debate about their impact on our most threatened migratory species.
In this episode, our guest is Dr Rob Needham, and we talk about his research from Scotland. Rob's long-term study reveals how beaver-modified streams support larger, healthier trout populations, with tagged fish successfully navigating multiple beaver dam crossings. We also talk about research from Norway, and North America that's providing crucial insights for British conservation efforts. For example Rachel Malison’s work in Norway demonstrates that beavers and salmon coexist successfully for past decades on some of the world's most productive salmon rivers. The evidence suggests these species co-evolved together and co-existed for millennia, creating complex ecosystems that benefit both.
From the western United States, Bridge Creek's remarkable restoration story demonstrates nature's incredible capacity for self-repair, with 200% increases in fish abundance following beaver reintroduction. Meanwhile, cutting-edge environmental DNA research is mapping salmon and beaver (and other species) distribution across Scottish catchments, showing how ecosystems can recover. As climate change intensifies pressure on freshwater habitats, the ecosystem engineering by beavers offers hope for building resilient river systems. The message is clear: collaboration between conservationists, researchers, and local communities is essential if we're to harness beavers' restorative power while protecting our precious migratory fish.
Further reading:
- The impact of reintroduced Eurasian beaver (Castor fiber) dams on the upstream movement of brown trout (Salmo trutta) in upland areas of Great Britain
- Balance The Scales - Launch Trailer
Subscribe to Tommy's Outdoors: Conservation and Science Newsletter
Support the Podcast and Buy Me a Coffee.
Recommended Books: tommysoutdoors.com/books
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Follow Tommy's Outdoors on Bluesky, Twitter, Instagram, YouTube and Facebook
225 episodes
Share
Manage episode 502495864 series 1299395
Content provided by Tommy's Outdoors. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by Tommy's Outdoors or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://podcastplayer.com/legal.
Can beavers save Britain's dying rivers? Are these ecosystem engineers the key to reversing the catastrophic decline of Atlantic salmon, or do their dams create impassable barriers for struggling fish populations? With salmon numbers plummeting by 70% in just 20 years and predictions they could vanish entirely within two decades, the stakes couldn't be higher. The reintroduction of beavers to British waterways has sparked heated debate about their impact on our most threatened migratory species.
In this episode, our guest is Dr Rob Needham, and we talk about his research from Scotland. Rob's long-term study reveals how beaver-modified streams support larger, healthier trout populations, with tagged fish successfully navigating multiple beaver dam crossings. We also talk about research from Norway, and North America that's providing crucial insights for British conservation efforts. For example Rachel Malison’s work in Norway demonstrates that beavers and salmon coexist successfully for past decades on some of the world's most productive salmon rivers. The evidence suggests these species co-evolved together and co-existed for millennia, creating complex ecosystems that benefit both.
From the western United States, Bridge Creek's remarkable restoration story demonstrates nature's incredible capacity for self-repair, with 200% increases in fish abundance following beaver reintroduction. Meanwhile, cutting-edge environmental DNA research is mapping salmon and beaver (and other species) distribution across Scottish catchments, showing how ecosystems can recover. As climate change intensifies pressure on freshwater habitats, the ecosystem engineering by beavers offers hope for building resilient river systems. The message is clear: collaboration between conservationists, researchers, and local communities is essential if we're to harness beavers' restorative power while protecting our precious migratory fish.
Further reading:
- The impact of reintroduced Eurasian beaver (Castor fiber) dams on the upstream movement of brown trout (Salmo trutta) in upland areas of Great Britain
- Balance The Scales - Launch Trailer
Subscribe to Tommy's Outdoors: Conservation and Science Newsletter
Support the Podcast and Buy Me a Coffee.
Recommended Books: tommysoutdoors.com/books
Merch: tommysoutdoors.com/shop
Follow Tommy's Outdoors on Bluesky, Twitter, Instagram, YouTube and Facebook
225 episodes
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Similar to Conservation and Science
Journalist Bruce Martin gives racing fans an inside look at the exciting world of the NTT INDYCAR SERIES in this fast-paced podcast, featuring interviews with the biggest names in the sport.
…
continue reading
Going Wild with Dr. Rae Wynn Grant is a different kind of nature show about the human drama of saving animals. From a paleoanthropologist who hunts fossils in conflict zones to someone who helped save an endangered species while in prison, in season four we will hear from real-life heroes and nature advocates with widely different expertise and life experiences that led them to be champions for the natural world. Wildlife biologist and host Dr. Rae Wynn-Grant has been studying wild animals i ...
…
continue reading
Flash Forward is a show about possible (and not so possible) future scenarios. What would the warranty on a sex robot look like? How would diplomacy work if we couldn’t lie? Could there ever be a fecal transplant black market? (Complicated, it wouldn’t, and yes, respectively, in case you’re curious.) Hosted and produced by award winning science journalist Rose Eveleth, each episode combines audio drama and journalism to go deep on potential tomorrows, and uncovers what those futures might re ...
…
continue reading
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continue reading
DNA science. Artificial intelligence. Smartphones and 3D printers. Science and technology have transformed the world we live in. But how did we get here? It wasn’t by accident. Well, sometimes it was. It was also the result of hard work, teamwork, and competition. And incredibly surprising moments. Hosted by bestselling author Steven Johnson (“How We Got To Now”), American Innovations uses immersive scenes to tell the stories of the scientists, engineers, and ordinary people behind the great ...
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continue reading
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continue reading
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continue reading
Seth Andrews, a former Christian broadcaster and believer for 30 years, ultimately escaped the bonds of superstitious thinking to embrace the more satisfying explanations that science provides. A professional video producer and host of one of the most popular atheist communities on the internet, Seth Andrews brings a polished format, a relaxed environment and a rage-free challenge to the religious beliefs that defined his youth. Become a supporter of this podcast: https://www.spreaker.com/po ...
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