Biomes are climatically and
geographically defined as similar climatic conditions on the earth, such as
communities of soil organisms, plants and animals and are often referred to as
ecosystems, some parts of the earth have more or less the same kind of abiotic
and biotic factors spread over a large area, creating a typical ecosystem over
that area. Such major ecosystems are termed as biomes.
Biomes
are defined by factors such as plant structures (such as trees, shrubs and
grasses), leaf types (such as broadleaf and needle leaf), plant spacing
(forest, woodland, savanna), and climate. Unlike ecozones, biomes are not
defined by genetic, taxonomic or historical similarities.
Biome
are often identified with particular patterns of ecological succession and
climax vegetation.
An
ecosystem has many biotopes and biome as a major habitat type. A major habitat
type, however, is a compromise, as it has an intrinsic inhomogeneity. Some
examples of habitats are ponds, trees, stream, creeks and burrows in the sand
or soil.
The
biodiversity characteristic of each extinction, especially the diversity of
fauna and subdominant plant forms is a function of abiotic factors and the
biomass productivity of the dominant vegetation. In terrestrial biomes, species
diversity tends to correlate positively with not primary productivity, moisture
availability and temperature. While the ecoregions are grouped into both biomes
and ecozones.