Ecosystem Resilience & Vulnerability

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Across
  1. 5. The ability of population to maintain its numbers through a stress e.g. wallabies
  2. 6. At risk of damage or collapse
  3. 7. cycles Nutrients are continually cycled through ecosystems, passing from organism to organism
  4. 9. Able to withstand disturbance or stress
  5. 12. Organisms which use the suns energy to create their own food
  6. 15. flows Energy is received in an ecosystem through primary producers and passes to one organism to another and is also lost to the atmosphere as heat
  7. 16. A measure in the rate of change and impacts on an ecosystem. Catastrophic suggests large changes which are fast
  8. 18. Changes caused to ecosystem functioning
  9. 19. A slow rate of change
  10. 22. succession One species gradually taking over the environment from another as circumstances within the environment change
  11. 23. The factors which determine an ecosystems location and which may cause it to be vulnerable
  12. 25. The differences in the number of species, or genetic variations within a particular population or ecosystem
  13. 26. The rate of recovery to a change in an ecosystem
Down
  1. 1. Caused on purpose
  2. 2. Organisms which obtain their energy from eating other organisms and are higher on the food chain
  3. 3. Caused without intention
  4. 4. Refers to a threshold level beyond which an ecosystem cannot recover
  5. 8. The size or shape of an ecosystem
  6. 10. A role an organism plays within an ecosystem e.g. primary producers have a niche role in providing energy to primary consumers
  7. 11. level A level of organisms within a food chain determined by how they obtain energy e.g. primary producers are the first trophic level
  8. 13. The ability of an ecosystem or organism to resist change e.g. eucalypt trees
  9. 14. equilibrium The situation in which stability is achieved in an ecosystem – through constant change
  10. 17. The rate at which biological matter (biomass) is produced by an ecosystem, measured using a rate of energy in a particular space, over time e.g. kj/m2/year
  11. 18. The degree to which ecosystems meet their prestress level in recovery to a change
  12. 20. chain Organisms within an ecosystem linked together through the passing of energy from one to another
  13. 21. pyramid The amount of energy to support larger organisms is greater in the trophic level below them. This is shown as a pyramid in a diagram form.
  14. 24. The interdependence of species within an ecosystem on one another e.g. within a food web or symbiotic relationships