1、ecology of tropical savannas

2、This is one of the largest intact savannas in Africa.

3、annual and perennial grasses of savannas and upland grasslands.

4、Some people say that because of global warming, forests around savannas may start taking over the savannas, and some say the opposite.

5、My soul flits away into the virgin forests and to the savannas.

6、"This is one of the largest intact savannas in Africa," he said.

7、Some savannas occur on wet, waterlogged soils; others on dry, sandy, well-drained soils.

8、Far, far away, on the savannas and in the forests of Africa is another reality.

9、The new protected areas will encompass a mosaic of savannas covering ancient sand dunes, riverside forests, and swamp forests.

10、Experiments suggest that if fire did not occur in savannas in the Americas, species composition would change significantly.

11、This may seem contradictory, but it only means that extreme soil conditions, either too wet or too dry for forests, are satisfactory for savannas.

12、Located in tropical areas at low altitudes, savannas are stable ecosystems, some wet and some dry consisting of vast grasslands with scattered trees or shrubs.

13、Despite the constancy of these primal urges human culture has experienced upheaval after upheaval in the period since our hunter-gatherer forebears roamed the savannas.

14、The area is "home to some of the purest natural beauty in Latin America , with dense tropical rain forests, wide savannas, coral reefs bursting with aquatic life, and delightfully deserted beaches."

15、We were seized by a frenzy: we began to gallop across the continent, through the savannas and forests that had recovered the earth, burying cities and roads, obliterating all trace of what had been.

16、Such conditions prevail throughout much of northern South America and Cuba, but many Central American savannas, as well as coastal areas of Brazil and the island of Trinidad, do not fit this pattern.