abiotic and biotic

• biotic is lving or once living components in an ecosystem
• abiotic is non-living components in an ecosystem
• what are some examples of biotic factors?


  • competition from new species
  • new predators
  • availability of food
  • new pathogens
• what are some examples of abiotic factors?

  • light intesnity
  • temperature
  • wind intensity
  • soil pH
• if an infectious disease emerges and spreads, it can wipe out the populating on species
• light intensity can affect plants all all plants need photosynthesis
• if light inensity is too low, rate of photosynthesis falls which has an impact on communities
• if temperature of an environment changes, animals can migrate of plants can disappear
• both animals and plants need water has many are adapted to low amounts of water
• many plants cannot grow on too acidic or too alkaline soils - pH
• strong winds blowing in land from sea can cause plants to lose water
• carbon dioxide is needed for plants to photosynthesise
• if carbon dioxide levels fall, rate of photosynthesis can decrease