L3 + L4 - Temperature and Radiation

Question 1

Give 3 examples of a micro climate

Answer 1

1 - bottom of a valley may be up to 31C colder at night
2 - 10C variation between ground and canopy
3 - south facing tree bark may reach up to 30C

Question 2

Name and briefly describe the 3 ways in which temporal variation is dealt with

Answer 2

Tolerance - perennial plants and some animals
Dormancy - hibernation, annual plants
Movement - Migratory birds and animals

Question 3

What are the 3 scales of spatial variation for temperature?

Answer 3

Variation across climatic zones, within a region, and micro climates

Question 4

Give 3 temporal ways plants have adapted to the varying amounts of radiation due to the seasons

Answer 4

Shedding of leaves
Some plants grow only at specific times of year - venial plants (bluebells)
Daily movement of leaves in some species

Question 5

Why would a plant grow early in the season and what is the rish of this?

Answer 5

To avoid competition for resources, but would risk temperature stress - frost

Question 6

Where does ozone:

a) filter UV light
b) is a pollutant

Answer 6

a) the stratosphere

b) the troposphere

Question 7

At what wavelngths does UV light cause:

a) sunburn, cancer and cateracts
b) destroys nucleic acids and proteins

Answer 7

a) 290-320nm

b) 240-290nm