Chapter 3

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Chapter 3
2014-09-30 07:50:34

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  1. Biodiversity
    The number and variety of organisms found in a specific region
  2. Protect

    e.g. to protect the whooping crane from extinction.
  3. Biodiversity hotspot

    e.g. The Leitrim Wetlands in Ontario is a biodiversity hotspot. It has more than 200 species of plants and 90 of birds.
  4. Community

    e.g. Fish, coral and sponges make up a community.
  5. Dominant species
    The species that is so abundant that has the biggest biomass of any community member

    e.g. American chestnut trees used to be dominant species before a fungus wiped most of them out.
  6. Keystone species

    e.g. Sea otters are keystone species because if their numbers drop the amount of sea urchins will increase. The urchins will eat the kelp and then any species that relies on kelp will have a decline in biomass.
  7. Captive breeding
    The breeding of rare or endangered wildlife can control settings to increase the population size

    e.g. breeding the black-footed ferret so that the population increases.
  8. Ecosystem engineer

    e.g. A beaver building a dam and turning a stream into a pond for amphibians, birds, and fish.
  9. Succession

    e.g. A beaver's dam turning a forest into a flooded forest, into a pond, into a beaver meadow
  10. Habitat loss
    The distraction of habitats, which usually results from human activities

    E.g. Deforestation in places like saskatchewan.
  11. Deforestation

    e.g. Boreal plains in the prairie provinces being cut down.
  12. Alien species

    e.g. Round goby in the great lakes.
  13. Invasive species

    e.g. Zebra mussels in the great lakes.
  14. Overexploitation
    They use or extraction of a resource until it is depleted

    e.g. Overfishing of the atlantic cod.
  15. Extinction
    The death of all the individuals of a species

    e.g. The dodo bird.
  16. Biodiversity crisis
    The current accelerated rate of extinctions on earth

    e.g. current day; with lots of habitat loss and polution manu species are at a risk of extinction.
  17. Restoration ecology
    The renewal of degraded or destroyed because systems through active human intervention

    e.g. Restoring the don valley brick works to a natural environment.
  18. Reforestation

    e.g. Replanting red pines in deforested areas in canada.
  19. Biocontrol

    e.g. Releasing the a parasitoid (european fly) to control the gypsy moth population.
  20. Bioremediation
    The use of living organisms to clean up contaminated areas naturally

    e.g. Plants being grown at toxic sites to absorb poisons and improve the soil quality.
  21. Bioaugmentation
    The use of organisms to add essential nutrients to depleted soils

    e.g. Clover being grown in feilds to increase nitrogen levels.

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