What is the most biodiverse river in the world?
The Yangtze River Basin has some of the highest levels of biodiversity in the world—from towering mountains and dense forests to fertile wetlands and bustling waterways created by seasonal flooding. The area covers nearly 448 million acres, an area more than four times the size of California.
Do rivers have high biodiversity?
River ecosystems are among the most species-rich in temperate regions due to their naturally high habitat heterogeneity and connectivity. Lakes, reservoirs, and other wetlands have an important function for river ecosystems by influencing water quality and quantity within the catchment area.
Why does Alabama have one of the highest freshwater biodiversity?
This river network and its surrounding forests represent the true cradle of American biodiversity. Because of the Mobile River basin, Alabama is home to more species of freshwater fish, mussels, snails, turtles and crawfish than any other state.
What is the cleanest river in Tennessee?
1. Big South Fork. Although technically a part of the Cumberland, the Big South Fork National River and Recreation Area has earned the right to its own section on the list of cleanest rivers in Tennessee.
Which of the following has maximum biodiversity?
Option C temperate rainforest: Temperate rainforest is the rainforest found in a temperate climate. They have a high amount of rainfall every year. In the temperate rainforest they have very few species of plants and animals. Option C is incorrect.
WHO declares mega diverse countries?
The World Conservation Monitoring Centre (WCMC) of the United Nations Environment Program has identified a total of 17 mega-diverse countries: Australia, Brazil, China, Colombia, Ecuador, United States, Philippines, India, Indonesia, Madagascar, Malaysia, Mexico, Papua New Guinea, Peru, Democratic Republic of Congo, …
What is high biodiversity?
High biodiversity is a habitat or ecosystem that has a high number of different species.
What habitats have high biodiversity?
Species diversity is greatest in the tropics, particularly in tropical forests and coral reefs. The Amazon basin in South America has the largest area of tropical forests. The southwestern Pacific has the greatest diver- sity of coral reef species.
How do rivers increase biodiversity?
Natural water flows also promote biological purification processes that contribute to cleaner water. This is important both for human use and for wildlife. River restoration contributes to biodiversity by restoring ecosystems and ecosystem processes that are heavily modified.
How do rivers affect the biodiversity?
They reduce water and sediment flows to downstream habitat , and change the nature of the river’s estuary where many of the world’s fish species spawn the impact from dams increase the vulnerability of entire ecosystems to other threats such as climate change.