The Mississippi Delta, also known as the Yazoo–Mississippi Delta, or simply the Delta, is the distinctive northwest section of the U.S. state of Mississippi (and portions of Arkansas and Louisiana) that lies between the Mississippi and Yazoo rivers.
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The Delta was swampland, with rivers and streams flowing through it and the Mississippi River flooding each spring. Wetlands in the Delta offer extensive water resources and a natural river pathway to support an “avian superhighway” for countless migrating birds.
The Mississippi River Delta is the 7th largest river delta on Earth (USGS) and is an important coastal region for the United States, containing more than 2.7 million acres (4,200 sq mi; 11,000 km2) of coastal wetlands and 37% of the estuarine marsh in the conterminous U.S. The coastal area is the nation's largest ...
The Ganges-Brahmaputra delta is the world's largest delta, covering most of Bangladesh and the state of West Bengal (India). The size of the delta is a reflection of the enormous input of sediment being washed off the still-growing Himalayan mountains into the Ganges river basin.
One big difference between the two is that while the Nile delta is shrinking (the Mediterranean Sea is eating away more sediment than the river can supply), the Mississippi delta is growing. The image below shows the growth of the Mississippi delta over the past 10,000 years.
Some of the mammals found in the California Delta include the beaver, river otter, muskrat and shrew. These mammals generally live in riparian habitats, where they build dens and burrows and hunt or forage for food.
On average, the Mississippi River Delta loses one football field of land per hour and has shrunk by 5,000 square miles in the last 80 years. To understand more about why some parts of the delta are disappearing due to sea-level rise, a team of NASA scientists will begin collecting data this spring.
Deltas, like the Mississippi River Birdsfoot Delta, are river-dominated ecosystems. A river-dominated delta is only partially influenced by tides and waves. In this instance, wave energy dissipates before connecting with the coastline.