21. Ecological impact of beavers Castor fiber and Castor canadensis and their ability to modify ecosystems.22. The term " eco-shadow " has been introduced to describe the ecological impact of antibiotics. 23. Another example of how privet can have a negative ecological impact in ecological displacing it. 24. The potential ecological impacts of this species were reviewed by Howells et al . in 2006. 25. Long-lining is an old practice, but modern technology has vastly increased its profitability and ecological impact . 26. The scale of the ecological impact may or may not be significant, depending on specific circumstances. 27. For Time / Life he made Dam Builders, comparing the ecological impact of humans and beavers. 28. His primary areas of research include ecosystems, conservation of aquatic species, habitats, and various ecological impacts . 29. Although the devastation to the Bonnet Carr?area was great, its ecological impacts were somewhat beneficial. 30. While there has been little serious opposition to the project, its ecological impact has not gone unnoticed.
