Rainforests Video
- Created by: Jeeez
- Created on: 10-10-19 09:26
View mindmap
- Rainforest
- Every hectare has more species in it then the UK.
- Some organisms are on the ground.
- Some climb trees.
- Some live high in the canopy.
- This all creates the largest biodiversity on earth.
- All these species create many genes.
- The large gene pools mean there are a number of medicines that can only be found here.
- Biodiversity hotspot.
- All these species create many genes.
- This all creates the largest biodiversity on earth.
- Some live high in the canopy.
- Some climb trees.
- Primary producers use photosynthesis to create food.
- Primary producers are always at the start of a food web.
- Meaning many consumers eat them.
- However decomposers will always ending up eating dead consumers and so the cycle continues
- Meaning many consumers eat them.
- Primary producers are always at the start of a food web.
- 2 key factors are required for the amount of greenery in a rainforest.
- 1. Energy from sunlight all year round
- 2. A lot of water.
- the rainforest creates some of its own rain through transpiration.
- Transpiration is when the heat evaporates water from within the leaves.
- This the comes back via precipitation.
- Transpiration is when the heat evaporates water from within the leaves.
- the rainforest creates some of its own rain through transpiration.
- Tropical Rainforests are aseasonal.
- Meaning there are no distinct seasons.
- Rainforests are very good at creating fertile soil through the nutrient cycle.
- Because there are no seasons, trees shed their leaves all year round.
- The decomposers break down these leaves so nutrients are released back into the soil
- The process of washing nutrients out of the leafs, into the soil and then out the soil with water is called leaching.
- The strong compounds remain and the soil become red because of this, it leaves the soil without nutrients.
- The process of washing nutrients out of the leafs, into the soil and then out the soil with water is called leaching.
- The decomposers break down these leaves so nutrients are released back into the soil
- Because there are no seasons, trees shed their leaves all year round.
- Felled trees create large gaps for things to grow into.
- The forest layer is as follows:
- Shrub Layer
- Canopy
- Main canopy
- Untitled
- Many fruiting plants meaning there are many animals here.
- Main canopy
- Canopy
- Key forest features:
- Drip tip leaves.
- Buttress Roots for stability.
- Lianas start on the forest floor but grow to latch onto trees so they don’t support their own body weight. They use their excess energy to grow higher quicker.
- There’s a lot of fruiting plants
- Lianas start on the forest floor but grow to latch onto trees so they don’t support their own body weight. They use their excess energy to grow higher quicker.
- Buttress Roots for stability.
- Drip tip leaves.
- Shrub Layer
- In mature rainforests, there is little light reaching the shrub layer so there isn’t much undergrowth.
- The forest layer is as follows:
Comments
No comments have yet been made