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.
Threats to Biodiversity. The primary threats to the savanna biome are humans (for example, poachers are killing elephants for their ivory tusks and hunting animals to the brink of extinction) and global climate change.
Fire is prevalent at the height of the dry season in January. are a very important part of the savanna Ës existence. of the grass plants, the deep roots remain alive, sending up new shoots with the onset of the rainy season. The scattered trees of the savanna survive fire because of a fire resistant bark. A fire leaves a nutrient-rich layer of ash behind. With the beginning of the rainy season in March, the