Unit 1B - Tropical Rainforests - Characteristics, biodiversity and adaptations Flashcards Preview

Geography - Unit 1B - The Living World > Unit 1B - Tropical Rainforests - Characteristics, biodiversity and adaptations > Flashcards

Flashcards in Unit 1B - Tropical Rainforests - Characteristics, biodiversity and adaptations Deck (19)
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1

What is temperature like in TRF?

Hot all year (generally between 20 and 28C)

2

What is precipitation like in TRF?

High (2000mm per year on average)

3

Process that occurs in shrub layer? Height of layer?

Decomposition
< 5m

4

What animals live in canopy and adaptations of these animals and why? Height of top canopy or emergents and canopy?

Monkeys, strong limbs as climbing and leaping all time
Top canopy - 30 - 60m
Canopy - 15 - 30m

5

What are conditions like in under canopy? Height?

Hot, damp and shaded from wind. Only receives about 5% of sunlight
5 -15m

6

What is vegetation like in emergent layer?

Many tall trees to reach sunlight, leaves at crown, big buttress roots for support

7

What do drip tip leaves and waxy coating of leaves do?

Allow excess water to spill off as they channel water off, preventing leaf damage

8

What is soil like in TRF?

Isn't very fertile as heavy rain washes nutrients away. Nutrients at surface due to decayed leaf fall but this layer very thin as decay is fast in warm, moist conditions. High iron content

9

What are epiphytes?

Parasitic plants that take root in trees high in canopy

10

Why are some trees fast growing?

To emerge above forest canopy where they compete for sunlight

11

What are lianas?

Woody plant that takes root in soil but supported by trees so it can grow upwards to get sunlight

12

What do buttress roots do?

Wide deep roots to stabilise tree and increase surface area for O2/CO2 exchange and help transport water

13

Adaptations of brightly coloured poisonous frogs and where are they found?

To deter prey and found in shrub layer

14

Use of strong beaks for toucans and parrots and where are they found?

To crack nuts and found in top canopy

15

Why does Titan Beetle live in shrub layer?

To fly and feed on decaying material

16

Why do many trees have smooth, thin bark?

No need to protect trunk from cold temperatures and allow water to run off and stop other plants growing on tree surface

17

Why do plants in under canopy have large leaves?

To absorb as much light as possible for photosynthesis

18

Why are some animals nocturnal?

Feed at night as it's cooler - helping them to save energy

19

What is biodiversity?

Variety of organisms living in particular area