Biodiversity and Investigating Diversity Flashcards
1
Q
Population
A
All organisms of one species in a habitat
2
Q
Community
A
All of the populations of all the species in a habitat
3
Q
Biodiversity
A
The variety of species in a given area
4
Q
Species richness
A
The number of different species in an area
5
Q
Index diversity
A
The relationship between number of species in a community and number of individuals of each species
6
Q
What is the IOD?
A
Enx(n-1)
Where N is total number of organisms of all species
and n = total number of organisms of each species
7
Q
What are the effects of farming on biodiversity
A
- Decreases due to forest cleared
- Hedge removed
- Monocultures
- Fewer species of plants and insects
- Fewer food source for other species
- Fewer habitats and niches
8
Q
How can we conserve biodiversity in farming
A
- Converse biodiversity by planting more hedgerows
- Protect species by law
- Restrict urban development
9
Q
Distinguish interspecific and intraspecific
A
Intra is within, inter is between
10
Q
How can we investigate diversity and variation
A
- Sample as impossible to survey all
- Large and random to be representative and avoid bias
- Enough data to form a stats test
