The document summarizes some of the negative environmental impacts of the Hoover Dam on the Colorado River ecosystem. It discusses how the dam led to lowering of the riverbed downstream, releasing of greenhouse gases from the reservoir, and destruction of local ecosystems and fish species. Specific impacts included endangering plants that could no longer reach the lowered water table, competition and temperature changes negatively impacting native fish populations, and significant bank erosion reducing habitat. While providing hydroelectric power, the dam fundamentally altered the natural environment of the Colorado River.

1. Hoover dam And the negative effects on environment

2. The great Hoover dam:

8. The process: Figure 2.1 Figure 2.2

9. The process: Figure 2.3 Figure 2.4

10. 3) Ecosystem destroying Bighorn sheep Coyote Ground squirrel Ringtail cat Desert tortoise Golden eagle

12. Desert plants: Bushes Desert flower

14. Endangered fishes in Colorado river: Bonytail chub Colorado pikeminnow Humpback chub Razorback sucker

17. Appendix Stone angel Hoover dam’s penstock tower

18. Appendix Lake Mead