Transcript What Are the Features of Land Biomes? - 6thgrade

What Are the Features of
Land Biomes?
Chapter 4 Lesson 4 pg.A136
Science Class 6th Grade
Ms. Lourdes Martínez
BIOMES
• Similar ecosystems with similar climates and communities
of animals are called biomes.
• These large geographic regions are found in many
locations around the earth.
• For example, desert biomes are found on almost
every continent.
• .-Climate is one of the most
important
factors
that
determines
the
kinds
of
organisms found in a biome.
• Do you think a polar bear could
survive in a desert?
-Latitude biomes changes as latitude or
distance from the equator –
changes because climate changes
the closer or fathest away you are
from the Equator.
• Regions closer to the Equator are warmer.
• Regions farther away to the Equator are
colder.
- Altitude climate is also affected by
altitude. The higher you go, the
colder it gets.
The climates in these two biomes are very
different.
As a result, the kinds of organisms in each are also
different.
Land Biomes
1.- Tundra Biomes:
Tundra, the
prairie“.
"ice
desert",
"frozen
The cold plains of the Far North get
their name from the Finnish word
"tunturia", which means treeless land.
The tundra biome is the coldest of all
terrestrial eco-systems .
It is frozen nine months of the year. This
ground that is permanently frozen is
called permafrost.
Still, the tundra is host to a surprising
number of plants and animals.
2.-Taiga Biome
• The taiga is the biome of the needleleaf forest. Living in the taiga is cold and
lonely. Some of the animals in the taiga hibernate in the winter, some fly south
if they can, while some just cooperate with the environment, which is very
difficult.
• Taiga is the Russian word for forest and is the largest biome in the world. The
taiga is located near the top of the world, just below the tundra biome.
• A lot of coniferous trees grow in the taiga. The taiga doesn't have as many
plant and animal species as the tropical or the deciduous forest biomes. It
does have millions of insects in the summertime.
3.-Temperate Deciduous Biome
•This biome gets its name from the trees that grow there. It is
dominated by trees that lose their leaves each year (they lose
their leaves each autumn).
•Examples of trees that lose their leaves each autumn are:
maples, beeches, willow, and oaks.
•The annual fall of leaves in the forest provides food for worms,
fungi, and bacteria (decomposers). These organisms break
down the leaves and recycle the nutrients from the leaves into
the forest soil.
•The temperate deciduous forest has four seasons: winter, spring,
summer, and autumn.
Maple
Beech
Willow
Oak
Did you eat any of the foods in the picture today?
These foods come from another biome – the
grassland.
4.-Grassland
• In grasslands, the temperature and seasons are similiar to those in
temperate deciduous forests.
• However the precipitation is less, and dry periods occur often. This
is important because it results in a different, major form of plant life.
• Because grasslands get less rain, few trees grow there. Grasses grow
there because they can survive the dry periods because they have
root systems that spread over large areas.
• The soil of grasslands is very fertile.
5.-Tropical Rain Forest
• A biome where trees grow tall.
-More than 50 meters tall. Most of the animals in this biome live in
the trees too.
• Rain forests are important becasue many of the things you
use come from them.
– Fruits, nuts, and spices come from the rain forest and
other plants are used to make medicines, perfumes,
cosmetics, and latex for rubber.
5.-Deserts
• The desert biome gets less than 25 cm of
rain each year.
• The Atacama Desert in Chile is the driest
place in the world, with an average rainfall
of zero.
• Also, most deserts do have high
temeratures during the day, but did you
know that they can be cold at night?
Temperature might even drop to freezing.
• Most people think of deserts as being
covered with sand. Some deserts are, but
others are covered in gravel and boulders.
Namibia
Desert
Creosote Bush
Desert
Atacama
Desert
Gobi
Desert
Patagonian
Desert