2. WHAT IS A BIOME?
A biome is a large naturally occurring
community of flora and fauna occupying
a major habitat.
3. DIFFERENT TYPES OF BIOMES
-Aquatic biomes
-Desert biomes
-Forest biomes
-Grassland biomes
-Tundra biomes
4. AQUATIC BIOMES
Water is the common link among the five
biomes and it makes up the largest part of the
biosphere, almost covering 75% of the Earth’s
surface. The Aquatic biome can be divided
into two regions, fresh water and marine.
5. DESERT BIOMES
Desert biomes can be hot, dry, semiarid,
cold or coastal.
Most deserts have a considerable amount
of specialized vegetation, as well as
specialized vertebrate and invertebrate
animals. Soils often have abundant
nutrients because they need only water to
become very productive and have little or
no organic matter.
6. FOREST BIOMES
About 420 million years ago, during the
Silurian Period, ancient plants and
arthropods began to occupy the land.
Over the millions of years followed, these
land colonizers developed and got used to
their new habitat.
Today, forests occupy approximately one-
third of Earth’s land area, account for more
than two-thirds of the leaf area of land plants
and hold over 70% of carbon present in living
things.
7. THE GRASSLAND BIOMES
Grasslands are characterized as lands
dominated by grasses rather than big
shrubs or trees. In the Miocene Period
and Pilocene Epochs, which spanned a
period somewhere around 25 million
years. Grasslands expanded in range as
hotter and drier climates prevailed
worldwide. There are two main divisions
of grasslands: tropical grasslands, called
savannas, and temperate grasslands.
8. THE TUNDRA BIOMES
Tundra is the coldest of all the biomes.
Tundra comes from the Finnish word
tunturia, meaning treeless plain. It is
noted for its frost molded landscapes,
really low temperatures, little
precipitation, poor nutrients and short
growing seasons. Dead organic
materials functions as a nutrient pool.
The two major nutrients are nitrogen and
phosphorus.
