Biodiversity within a community Flashcards
1
Q
What is a habitat?
A
An area where an organism lives
2
Q
What is species richness?
A
The number of different species in a habitat or community
3
Q
Why is the index of diversity used instead of species richness?
A
Index of diversity takes into account population size as well as number of different species
4
Q
How does monoculture reduce biodiversity?
A
By going one crop, meaning only few species are able to survive
5
Q
How do pesticides reduce biodiversity?
A
- They remove pests
- The species that feed on these pests are unable to survive
6
Q
How do herbicides reduce biodiversity
A
- Remove unwanted plants
- The organisms that feed on these unwanted plants are unable to survive
7
Q
How does deforestation reduce biodiversity?
A
- The removal of habitats for many species
- Removal of direct species
8
Q
What is a community?
A
All the populations of different species in a habitat
