Coastal Ecosystems: Physical aspects Key Idea 2.4/2.5 Coastal Ecosystems: Physical aspects Mangroves Coasts Lesson 2 of 4

Lesson Objectives Define the terms ‘ecosystem’ and ‘biodiversity.’ Describe the characteristics, distribution and biodiversity of coral reefs, mangroves, sand dunes and salt marshes. Explain the physical factors that affect the distribution of coastal ecosystems.

Recap SALT MARSH SAND DUNES CORAL REEFS MANGROVES Recap Coastal Ecosystems SALT MARSH SAND DUNES

Key Definitions Ecosystem – Biodiversity - A living community of plant and animals sharing an environment with non-living elements such as climate and soil. The number and variety of organisms found within a specified geographic region.

Distribution of ecosystems Characteristics Biodiversity What you need to know Distribution of ecosystems Characteristics Biodiversity

MANGROVES

Introduction What are mangroves?

distribution

Task 1 Complete your worksheet 2. What is meant by the term intertidal? Definition: the area between the land and sea that is covered by water at high tide and uncovered at low tide. 3. In what ways are mangroves a very tolerant ecosystem.

Answer 2. What is meant by the term intertidal? Definition: the area between the land and sea that is covered by water at high tide and uncovered at low tide.

The Sundarbans Bangladesh

Recipe Time Plenary Write the recipe for what you need for a good mangrove to form What is the method? What do you need first?

What threatens Mangrove Plenary Have a think about... What threatens Mangrove Watch the Mangrove Clip