1. ENERGY SECURITY BIODIVERSITY TECHNOLOGICAL FIX
1.2
CONTESTED PLANET
ENERGY SECURITY
BIODIVERSITY
TECHNOLOGICAL FIX

2. and value of biodiversity?
Enquiry Question 1
Defining Biodiversity
What is the nature
and value of biodiversity?
Learning Objectives –
To name the factors that influence biodiversity
To be able to classify these factors into groups
To consider which have greater impact upon biodiversity

3. Biodiversity Is it evenly distributed? p100 A2 OUP
Answer this question and add 5 facts that evidence your thinking!!
Why are biomes named after plants and not animals?

4. Your starter for 10
List 10 keywords from last lesson ie the ones you were asked to learn for Homework
Let’s see how well you do in today’s lotto draw ….

5. Are you a biodiversity ‘millionaire’?
ABIOTIC
PRODUCER
ENERGY FLOW
KEYSTONE SPECIES
CONSUMER
TROPHIC LEVEL
How many of these can you define? Work with your partner!

6. What factors influence (the distribution of) biodiversity??? ?? ?? ??
Biodiversity ?? ?? ??

7. What factors influence (the distribution of) biodiversity?
Add to your mind-map as necessary
Can we colour code them into groups?
Which of these are the most important/determining factors?

8. Endemism vs. Cosmopolitan Distribution
Cosmopolitan Distribution is the ecological state of being found almost anywhere around the world.
Endemism is the ecological state of being unique to a particular location, such as a specific island, habitat type or nation. To be endemic to a place or area means that it is found only in that part of the world and nowhere else. For example, many species of lemur are endemic to the island of Madagascar.
Over to you…..
Add the words endemic and
cosmopolitan to your glossary then
List 10 species of each type

9. ‘limiting factor’ as it
This is the main or
‘limiting factor’ as it
determines the limits within which species exist
Big
impact
if focus
on one
species
The bigger
the area
the more
space
for
species
The bigger the population, the more
in competition we are for space & resources
Often monoculture

10. distance from the Equator and productivity (NPP)?
Biodiversity
p101
A2 OUP
habitat
net primary production (grams per square metre per year)
Forests
Tropical
1,800
Temperate
1,250
Boreal
800
Other terrestrial habitats
Swamp and marsh
2,500
Savanna
700
Cultivated land
650
Desert scrub 70
Temperate grassland
500
Tundra and alpine
140
Is there a
correlation between
distance from the Equator and productivity (NPP)?
Negative correlation
(anomalies include tundra/alpine; plate boundaries & mountains (Boreal due to seasons)
Make links to
prior learning

11. Biodiversity Climate extreme places eg ? have
lower biodiversity & productivity
due to limiting factors eg ???
Biodiversity
Lower latitudes eg nr Equator
warmer, more humid;
Ideal conditions for breakdown of
decaying matter (nutrient cycling)
Negative correlation
(anomalies include tundra/alpine; plate boundaries & mountains (Boreal due to seasons)

12. FACTORS AFFECTING BIODIVERSITY - Answers
Altitudinal Range
Habitat Destruction
Succession
Habitat Architecture
History and Age
Effective Conservation and Restoration
Size of an Area
Disturbance
Productivity
Habitat Heterogeneity
Interaction between species
Isolation
Hetero = different
Homo = same
Dispersal and Colonisation

13. GLOBAL and CONTINENTAL FACTORS
Now sort the factors into categories:
GLOBAL and CONTINENTAL FACTORS
REGIONAL FACTORS
LOCAL FACTORS
HUMAN FACTORS

14. Global/ Continental Regional Local Human
Size of An Area
Productivity
Succession
Habitat Destruction
History and Age
Habitat Architecture
Interaction between species
Effective Conservation and Restoration
Isolation
Habitat Heterogenity
Disturbance
Altitudinal Range
Dispersal and Colonisation

15. Learning Review Can I….. Now I ……. must not forget the
EQ1.2 learning challenge Hmks
name the factors that influence biodiversity?
classify these factors into groups?
state which have greater impact upon biodiversity?