If snakeheads become established in a specific body of water, they can disrupt the ecosystem’s predator-prey balance. This can be catastrophic for native species.
Additionally, when a new species is introduced to an already established body of water, there is always the potential of the species bringing new diseases and parasites along with it. And, it does not appear that only large populations of snakeheads create environmental problems for American waterways. Even just one snakehead poses a threat because of its voracious feeding behavior.
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For the past decade Lake Mead has been battling the worst 10-year drought in recorded history along the Colorado River, which feeds the 110-mile-long reservoir. Since 1999, Lake Mead has dropped about 1 percent a year. It is estimated that by 2012, the lake’s surface could fall below the existing pipe that delivers 40 percent of Las Vegas’s water. Because of an insufficient and cheaper alternative to charcoal and a large former refugee population, tree felling and a great dependence on charcoal in the self-declared republic of Somaliland are adversely affecting the environment. In the 1920s, farmers succeeded in conquering The Great Prairie Plains of the Midwest. The plains were then transformed into the “amber waves of grain” we know today. However, this transformation came with a heavy price. The Wilkins Ice Shelf, on the western side of the Antarctic Peninsula, used to have an ice bridge connecting it to nearby Charcot Island, until that ice bridge collapsed in early April, 2009. |
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