Science Unit 1- Chapter 3

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TheGraciePena
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175625
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Science Unit 1- Chapter 3
Updated:
2012-10-04 20:28:24
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Science Unit Chapter
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Science Unit 1- Chapter 2
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  1. Biodiversity
    Degree of variation of life forms within a given species, ecosystem, biome, or an entire planet.
  2. Protect
    To keep from being damaged, attacked, stolen, or injured.
  3. Biodiversity hotspot
    A biodiversity hotspot is a biogeographic region that is both a significant reservoir of biodiversity and is threatened with destruction  
  4. Community
    A group of people with a common characteristic or interest living together within a larger society
  5. Dominant Species
    One of a small number of species which dominate in an ecological community
  6. Keystone Species
     A keystone species is a species that plays a critical role in maintaining the structure of an ecological community and whose impact on the community is greater than would be expected based on its relative abundance or total biomass.
  7. Captive Breeding
    Captive breeding is the process of breeding animals in human controlled environments with restricted settings, such as wildlife reserves, zoos and other conservation facilities. 
  8. Ecosystem Engineer
    An ecosystem engineer is any organism that creates or modifies habitats. 
  9. Succession
    Ecological succession is the phenomenon or process by which an ecological community undergoes more or less orderly and predictable changes following disturbance or initial colonization of new habitat 
  10. Habitat loss
    Habitat loss is linked to the ever-increasing demands for land by the exploding human population and the commercial demands for natural resources.
  11. Deforestation 
    Deforestation, clearance or clearing is the removal of a forest or stand of trees where the land is thereafter converted to a non-forest use 
  12. Alien Species
     Invasive plant and animal species
  13. Invasive Species
    An invasive species is defined as an organism that is not native and has negative effects on our economy, our environment, or our health.
  14. Overexploitation
    Overexploitation, also called overharvesting, refers to harvesting a renewable resource to the point of diminishing returns
  15. Extinction
    Extinction is the conditioning phenomenon in which a behavior that has been previously reinforced no longer results in the reinforcing consequences and, therefore, the behavior stops occurring in the future
  16. Biodiversity crisis
    Biodiversity Crisis is the number and variety of organisms found within a specified geographic region.The variability among living organisms on the earth, including the variability within and between species and within and between ecosystems
  17. Restoration ecology
    Restoration ecology is the scientific study and practice of renewing and restoring degraded, damaged, or destroyed ecosystems and habitats in the environment by active human intervention and action, within a short time frame.
  18. Reforestation
    Reforestation is the natural or intentional restocking of existing forests and woodlands that have been depleted, usually through deforestation.[
  19. Biocontrol
    Biological control is a method of controlling pests using other living organisms
  20. Bioremediation
     Bioremediation is the use of micro-organism metabolism to remove pollutants.
  21. Bioaugmentation
    Bioaugmentation is the introduction of a group of natural microbial strains or a genetically engineered variant to treat contaminated soil or water.

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