Ch 2.3 and 2.4 - Populations and Ecosystems

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Across
  1. 5. WA trialled a rabbit-proof _______
  2. 6. Rabbit populations grew quickest in which state of Australia?
  3. 11. A randomly selected square plot used to determine populations
  4. 12. Using disease to control populations is called __________ control
  5. 13. Population gains due to reproduction and immigration must balance the losses due to death and ________
  6. 17. The usual way to determine the number of humans in a population
  7. 19. Myxoma is a ______ used to control rabbit numbers
  8. 21. An increase in __________ numbers leads to a depletion of grass
  9. 23. Rabbits for hunting were released near which city?
  10. 25. Scientists on Macquarie Island removed which non-native animals
  11. 26. The study of changes of population numbers within ecosystems is called 'population ________'
  12. 27. Myxoma spread ________
Down
  1. 1. Rabbits arrived in Australia on the ______ ______
  2. 2. An ecosystem needs to be able to maintain ________
  3. 3. Another name for the common bush rat
  4. 4. One way to mark a captured animal
  5. 7. Capture-recapture is best used for animals that are ________
  6. 8. Rabbit _______ can destroy large sections of habitat
  7. 9. Changes in ecosystems may be intensified by _______ and bushfires
  8. 10. Amount of available _______ affects population numbers
  9. 14. Australia's _______ production increased when rabbit numbers went down
  10. 15. Rabbits competed with local __________ for food
  11. 16. One of the animals rabbits compete with for grass
  12. 18. It is best if a ______ number of quadrats are used
  13. 20. Some rabbits were ________ to Myxoma
  14. 22. Total number of _______ = N1 x N2 / M2
  15. 24. Ecosystem balance is a type of dynamic ___________