Tropical Rainforests

?
  • Created by: 123
  • Created on: 15-11-20 14:06
What is the climate like in a tropical rainforest?
No seasons.
Annual temperature range of 21°C to 30°C.
Lots of rain/precipitation.
1 of 26
What's the soil like in a tropical rainforest?
Heavy rain washes away nutrients and minerals from soil.
Soil left is infertile.
One layer of soil is fertile but doesn't extend
deep underground.
2 of 26
What are the plants like in a tropical rainforest?
Plants grow all year.
Most are evergreen.
Most don't shed leaves in winter.
Battle for sunlight so trees grow very tall (46m) as they shade each other.
Epiphytes (plants that live off and grow on other plants) are common.
3 of 26
What animals live in tropical rainforests?
Full of biodiversity.
Mammals like gorillas, jaguars and sloths.
Reptiles and amphibians like frogs, snakes, lizards and crocodiles.
Diverse insect and bird species.
Many animals have adapted by evolution and natural selection to survive in tropical rainf
4 of 26
What is life like in tropical forests?
The Uncontacted Indians are an example of a tribe in the Amazon Rainforest.
They survive by hunting animals, eating fish, vegetables, pulses and berries.
5 of 26
What does it mean when a tropical rainforest is described as highly interdependent?
All the different parts of an ecosystem depend on each other so if one thing changes, it will have a knock-on effect for all the other parts.
6 of 26
What does deforestation mean?
Reducing the number of tress in a forest by chopping them down.
7 of 26
What are the effects of deforestation?
More carbon dioxide in atmosphere as there are fewer trees to absorb it.
Soil erosion increases.
Quality of soil reduces.
Loss of habitat for large population of animals.
Soil exposure.
8 of 26
What are some examples of interdependence between plants and animals?
Animals get energy and nutrients by eating plants or eating animals that have eaten plants.

Vegetation is dense meaning that there is food for primary consumers and plant-eating animals. This means there are more animals alive for meat-eating animals.
9 of 26
What are some examples between climate and soil?
Because the climate is humid, warm and moist, decomposition happens rapidly.
Rapid decomposition creates a nutrient rich layer of soil which allows plants to grow fast.
10 of 26
What are some adaptations in tropical rainforests?
Buttress roots
Waxy coating and pointed leaf tips
Smooth layer of thin bark
Climbing vines
Particular layer adaptations
11 of 26
How are buttress roots adapted?
They spread out across a very wide area and go deep underground meaning they can
absorb more minerals.
However they have to compete with other plants as they cover a wider area of soil.
12 of 26
How are waxy coated and pointed leaf tips adapted?
Waxy coating prevents the leaves from absorbing the water and therefore becoming to heavy and falling off.
The pointed leaf tips funnel the water off in a single channel.
13 of 26
How has a smooth layer of thin bark adapted?
Trees in the rainforest need to prevent absorbing too much water so having a smooth layer of thin bark allows water to run off the trees easily.
14 of 26
How have climbing vines adapted?
Lianas for example try to compete for sunlight by growing up other trees' tree trunks. This conserves energy and allows them to reach the sunlight they need to photosynthesise and survive.
15 of 26
What are the 4 layers of flora called in a tropical rainforest?
Emergent
Canopy
Understory
Forest Floor
16 of 26
How have plants in the emergent layer adapted?
The emergent layer is the top layer so the trees and plants have to be really tall to get the most sunlight.
17 of 26
How have plants in the forest floor layer adapted?
The forest floor layer is the lowest layer so plants will have a bigger surface area on their leaves to absorb the most sunlight.
18 of 26
What 3 conditions do plants have to be adapted
to in tropical rainforests?
High amount of rain.
High temperatures.
Intense competition for light.
19 of 26
What 3 conditions do animals have to be adapted to survive in tropical rainforests?
They need to get enough food to live.
Reproduce.
Avoid being eaten by predators.
20 of 26
In what ways have Tamarin and Howler Monkeys adapted to live in the Amazon Rainforest?
They avoid predation by living high in the trees and avoiding predators on the forest floor.

They have evolved strong tails and limbs to climb and live in the trees.
21 of 26
How have flying squirrels adapted to living in the Amazon Rainforest?
They have evolved wing-like skin to glide between trees and avoid predators.
22 of 26
How have chameleons adapted to living in the Amazon Rainforest?
Chameleons have the ability to change their skin colour to fit whatever they are in front of. This allows them to prevent themselves from being eaten by predators.
23 of 26
How have chameleons adapted to living in rainforest biomes?
Sloths are nocturnal meaning that they can preserve energy and only move and hunt when temperatures are low at night.
24 of 26
How have anteaters adapted to living in
rainforest biomes?
Anteaters are also nocturnal meaning they preserve their energy by sleeping in the day.

Their sense of hearing and smell have evolved to compensate for the low light levels at night and prevent them from being eaten by predators.
25 of 26
How have jaguars adapted to living in the
Amazon Rainforest?
The skin of a jaguar helps them camouflage in the jungle.
They can also swim so they can cross over rivers e.g. the Amazon River.
26 of 26

Other cards in this set

Card 2

Front

What's the soil like in a tropical rainforest?

Back

Heavy rain washes away nutrients and minerals from soil.
Soil left is infertile.
One layer of soil is fertile but doesn't extend
deep underground.

Card 3

Front

What are the plants like in a tropical rainforest?

Back

Preview of the front of card 3

Card 4

Front

What animals live in tropical rainforests?

Back

Preview of the front of card 4

Card 5

Front

What is life like in tropical forests?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Geography resources:

See all Geography resources »See all Ecosystems resources »