BIODIVERSITY

• WHAT ARE THE TYPES OF BIODIVERSITY?

  species diversity, genetic diversity and ecosystem diversity
• WHAT IS SPECIES DIVERSITY?

  number of different species and individuals within each species in a community
• WHAT IS GENETIC DIVERSITY?

  variety of genes amongst all individuals in a population of one species
• WHAT IS ECOSYSTEM DIVERSITY?

  range of different habitats
• EXAMPLE OF SPECIES DIVERSITY?

  species richness
• WHAT IS SPECIES RICHNESS?

  number of different species in a community
• WHAT IS BIODIVERISTY?

  range and variety of genes, species and habitats within a particular region
• WHAT REDUCES BIODIVERISTY?

  farming techniques
• WHAT MUST WE DO AS HUMANS AS A RESULT OF FARMING TECHNIQUES?

  find a balance between conservation and farming
• EXAMPLES OF FARMING TECHNIQUES THAT REDUCE BIODIVERISTY?

  • destruction of hedgerows
  • selective breeding
  • monocultures
  • over-grazing
  • filling in ponds and draining wetlands
• HOW IS GENETIC DIVERSITY INVESTIGATED WITHIN/ BETWEEN A SPECIES?

  By comparing...

  • frequency of observable characteristics
  • base sequence of DNA
  • base sequence of mRNA
  • AA sequence of proteins