Biodiversity Flashcards
What are the three types of biodiversity?
Species diversity/ genetic diversity/ ecosystem diversity
What is species diversity?
The number of species and individuals in a species in a community
What is genetic diversity?
The variety of alleles amongst all the individuals in a population of one species
What is ecosystem diversity?
The range of different habitats
What is species richness?
The number of different species in one area at a particular time
What is a cause for concern?
A decrease in biodiversity and this is often caused by human activity
What farming activities reduce biodiversity?
- destruction of hedgerows
-selective breeding
-monocultures
-overgrazing
-filling in of ponds and draining wetlands
What is the index of diversity
A measure of species diversity. It is a calculation to measure the relationship between the number of species in a community and the number of individuals in each species