4.6 Biodiversity Flashcards
1
Q
What is biodiversity?
A
Variety of living organisms in a habitat
2
Q
What is species richness?
A
Number of different species in a community
3
Q
What is index of diversity?
A
• Relationship between number of different species in a community
• And number of individuals in each species
• d = N(N-1) / total n(n-1)
4
Q
How do some farming techniques reduce biodiversity?
A
• Reduces variety of plant species
• So fewer habitats / niches
• So less variety of food sources
5
Q
Why is a balance between conservation and farming required?
A
• Conservation is required to increase biodiversity
• But yields may reduce, reducing profit for farmers
