After the boom-bust-boom of the fifties and sixties, the borough went into a third and more severe decline again in the mid-1970s along with much of the Rust Belt so that population was just 2,804 at the 2000 census. Now in the 2011 Brownsville still has a handful of buildings condemened or just borded up.
One threat to these Savanna biomes is the animals which graze upon it. Other biomes such as Taiga or Rainforest have a high tree quantity which means that less grass is able to grow for animals to graze on. However, since Savannas have few trees and much wide open space than other biomes an herbaceous layer grows much easier.
Grass Patches... and a Few Trees. The savanna is characterized by its variety of grasses. However, it is not the lush grasses of grasslands that extend as far as the eye can see. Instead, the grasses are often in thick clumps with bare ground and shrubs in between.There are many types of grasses in the savanna, such as Rhodes grass, red oats grass and lemon grass.The Bermuda grass that many plant in their lawns is native to the African savanna as is elephant grass, which can grow 10 feet (3 m) tall.ell, plants in the savanna have developed defenses for this. Many plants have roots that grow deep in the ground, where the most water can be found. This defense also allows the plant to survive fires because the root is undamaged and can regrow after the fire.