Marine ecosystems are some of the largest on Earth and include kelp forests, coral reefs, shorelines, and open oceans. They contain a variety of habitats that support many mammal and plant populations interacting in communities. Tropical rainforests are the most diverse land ecosystems, containing emergent, canopy, understory, and forest floor layers that support a wide range of species. Tundra ecosystems have low temperatures and limited sunlight, supporting mosses, lichens, and some grasses in a slow growth cycle.

1. ECOSYSTEMSECOSYSTEMS

2. ECOSYSTEMSECOSYSTEMS
ORGANISATIONORGANISATION
ECOSYSTEM
Marine: ecosystems are one of the largest ecosystmes on
Earth.
They include differents types of ecosystem such as kelp forest,
corals reefs, shorelines and open oceans. Marine ecosystems
have mammals and many different species.

3. HABITATHABITAT
• Habitat is a place where an organism lives.
• A habitat is very variade.

4. POPULATIONPOPULATION
Population is called when organisms of
the same species interact within them.
They live bacteria, algae and types of
plakton.

5. COMMUNITYCOMMUNITY
Different population interact with
each other in communities.
They lives differents species of fish,
mammals and invertebrates living
together.

6. TROPICAL REINFORESTTROPICAL REINFOREST

7. DEFINITION
Form the most diverse ecosystem on
land.
They have the Amazon, Congo Rivers
and The Islands of Indonesia

8. 1.EMERGENT LAYER1.EMERGENT LAYER
•Emergent trees are usually about
50 or 60 metres tall. These trees
have adapted to survive in hot
temperatures and strong winds.

9. 2.CANOPY LAYER
The trees in the canopy layer are often
more than 30 metres tall. Birds,
mammals, insects and reptiles all live up
here. Many never leave the treetops and
spend their whole lifecycle in the canopy.

10. 3.UNDERSTORY LAYER
This is the part of the forest made up
of trunks, branches, bushes and
shrubs. Predators like jaguars and
snakes live in this section, along with
small mammals, amphibians and
reptiles.

11. 4.FOREST FLOOR4.FOREST FLOOR
This part of the forest belongs to
invertebrates, fungi and bacteria, most of
which live on the decomposing matter
that comes from the animals and trees
above. The forest floor is dark as little
sunlight penetrates though the canopy.

12. TUNDRA

13. DEFINITION
• The tundra is an ecosystem with low temperatures and no
light for half the year. The most common plants are mosses,
lichens and some grasses. Tundra is sparsely inhabited and
the cycles of growth and decomposition take place at a
much slower rate than in other ecosystems.

14. FOOD CHAINFOOD CHAIN

15. DEFINITIONDEFINITION
• It’s made up of three levels:
• Producers (plants, sun…)
• Consumers: primary, secudary and terciary consumer.
• Decomposers: Feed on other death organisms.

16. FOOD WEBFOOD WEB

17. DEFINITIONDEFINITION
• There is an interdependence of species wich live off each
other.
• The interdependecies form Food Webs.
• Are made up of different food chains.
• Produce energy (Biomass) food for the next tropic level.

18. DANIEL AND ALEJANDRODANIEL AND ALEJANDRO
THE END