Comparing EcosystemsTerrestrial vs. Aquatic

EcosystemsLesson 38

The plants and animals that are found in a particular location are

referred to as an ecosystem. These plants and animals depend

on each other to survive.

An ecosystem refers to the interrelation of biotic and abiotic

factors.

What does biotic and abiotic mean?

In simpler terms, an ecosystem is an entity where living organisms

interact with the physical environment.

It is an area where physical objects (such as soil, rock, water) function together with plants and

animals.

https://www.youtube.com/watch?v=y-wpbhnom70

Let’s watch this video about the biotic and abiotic factors.

http://www.youtube.com/watch?v=E1pp_7-yTN4

Let’s watch another video about the biotic and abiotic factors.

As geographers study the many ecosystems around the world, many similarities or patterns

become evident from one ecosystem to another.

This allows scientists to group ecosystems into categories.

Ecosystems can be categorized into two major types: aquatic

ecosystems and terrestrial ecosystems.

The key to the meaning of terrestrial ecosystems lies in the

word “terrestrial”, which generally means anything occurring on land.

Terrestrial ecosystem refers to the interaction

between living organisms and

non-living objects occurring on land masses of islands and

continents.

Terrestrial ecosystems, or land-based ecosystems include forests,

grasslands, tundra, deserts.

http://www.youtube.com/watch?v=RFEV-hiP2gQ

Let’s watch a video about terrestrial ecosystems.

In this unit we will learn about three terrestrial ecosystems: the

deciduous forests, the rain forests and the grasslands.

Aquatic ecosystems generally refer to interaction of living and

non-living entities in lakes, streams, marshes and ponds.

Aquatic ecosystems, or water-based ecosystems may be fresh water (lakes and ponds) or saltwater (oceans, estuaries and saltwater marshes).

In this unit we will learn about ecosystems in lakes (freshwater)

and oceans (salt water).

http://www.youtube.com/watch?v=kL-9TB4qAho

Let’s watch a video about aquatic ecosystems.

Let’s review what we have learned

about ecosystems. Answer the attached

questions on the worksheet entitled

L#38 Comparing Ecosystems.

In our next lesson we will learn about the deciduous

forests

Good Job Today!

And remember to….

See you next time!