Short Wave What's Missing From The Invasive Species Narrative?
Aug 28, 2024
The conversation delves into the complexities of aquatic invasive species, challenging the simplistic notion of good versus bad. Experts share insights on how human industry fuels their spread, emphasizing our shared responsibility. The podcast also highlights innovative management approaches that blend indigenous knowledge with science. Listeners are urged to rethink the narrative around species like zebra mussels and water hyacinth, and consider the ecological ramifications of our actions in relation to these non-native species.
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Zebra Mussel Invasion
- In the mid-80s, freighters carrying ballast water from Europe introduced zebra mussels to the Great Lakes.
- These mussels caused significant ecological and economic damage, costing millions annually.
Non-native vs. Invasive
- The USGS Non-Indigenous Aquatic Species Database catalogs over 1300 non-native taxa.
- Not all non-native species are invasive; 'invasive' implies harm to the economy, environment, or human health.
Hybrid Cattail Invasion
- In the Upper Great Lakes, a non-native narrowleaf cattail hybridized with the native broadleaf cattail.
- This hybrid cattail became highly invasive, converting diverse wetlands into monocultures.