4.6 biodiversity in a community

• what is a species?

  A species is a group of organisms that can interbreed and produce living, fertile offspring.
• what is meant by species diversity?


  The number of different species in a particular area/community
• what is species richness?


  a measurement of the number of different species in a commmunity- measuring biodiversity
• What are the impacts of farming on biodiversity?

  Habitat loss- from deforesration, herbicides- reduces plant diversity, monoculturing- one species of crop planted reducing biodiversity and species richness
• what Is biodiversity?


  the variety of living organisms which can be measured in terms of species, genetics or ecosystems
•  Species richness measures only number of (different) species / does not measure number of individuals ( IOD does)