Ecology

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Author:
KaZuma_t3
ID:
179542
Filename:
Ecology
Updated:
2012-10-24 01:12:28
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ecology
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science
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  1. The relationship between species and abiotic factors in an area.
    ecosystem
    ecosystem degradation
    ecosystem regeneration
    ecosystem
  2. The destruction of a natural ecosystem either by humans or by natural disasters.
    ecosystem
    ecosystem degradation
    ecosystem regeneration
    ecosystem degradation
  3. Restoring a damaged ecosystem.
    ecosystem
    ecosystem degradation
    ecosystem regeneration
    ecosystem regeneration
  4. an animal that feeds on other animals
    carnivores
    herbivores
    omnivores
    carnivores
  5. an animal that eats plants
    carnivores
    herbivores
    omnivores
    herbivores
  6. an animal that eats plants and animals
    carnivores
    herbivores
    omnivores
    omnivores
  7. an organism that uses the sun's energy to make its own food
    producer
    consumer
    abiotic
    producer
  8. consume other organisms to gain energy
    producer
    consumer
    abiotic
    consumer
  9. the non-living components of an ecosystem 
    producer
    consumer
    abiotic
    abiotic
  10. the living components of an ecosystem
    biotic
    decomposers
    niche
    biotic
  11. organisms that recycle dead or decaying matter back into usable components
    biotic
    decomposers
    niche
    decomposers
  12. where in an ecosystem a species lives
    biotic
    decomposers
    niche
    niche
  13. a community of organisms where each member is eaten in turn by another member
    food chain
    food web
    limiting factor
    food chain
  14. a complex of interrelated food chains in an ecological community
    food chain
    food web
    limiting factor
    food web
  15. any factor that controls the increase and decrease of a population
    food chain
    food web
    limiting factor
    limiting factor
  16. all the populations that live together in the same place
    community
    population
    immigration
    community
  17. the number of organisms of the same species living in a given area
    community
    population
    immigration
    population
  18. moving into an area
    community
    population
    immigration
    immigration
  19. moving out of an area
    emigration
    death rate
    birth rate
    emigration
  20. direct decrease of species
    emigration
    death rate
    birth rate
    death rate
  21. direct increase of species
    emigration
    death rate
    birth rate
    birth rate
  22. any factor that affects a population based on size and more intense as the population increases
    density dependent factors
    density independent factors
    extinct
    density dependent factors
  23. any factor that affects a population no matter what it's size
    density dependent factors
    density independent factors
    extinct
    density independent factors
  24. the entire species has died off
    density dependent factors
    density independent factors
    extinct
    extinct
  25. a species that has been eliminated from a particular area, but still exists somewhere else
    extirpated
    threatened
    vulnerable
    extirpated
  26. a group of animals that is dwindling in numbers and may go extinct soon
    extirpated
    endangered
    threatened
    endangered
  27. any species that is likely to become endangered if factors that make it vulnerable are not reversed
    extirpated
    endangered
    threatened
    threatened
  28. any species that is at risk because of low or declining numbers
    vulnerable
    invasive species
    endangered
    vulnerable
  29. an introduced species that out competes native species for space and resources
    threatened
    vulnerable
    invasive species
    invasive species
  30. how do humans affect ecosystems
    deforestation leading to decrease in habitat, burning fossil fuels which lead to climate change, humans have industries that release toxin/pollutants that bioaccumulate in the food chain
  31. how can we limit/prevent humans' effects on ecosystems
    reducing our ecological footprints can have a big benefit. everything from not using plastic bags, to choosing energy efficient appliances
  32. what are some ecosystems humans have had a negative impact on
    lake winnipeg because of fertilizers and waste from industries
  33. what can we do to save our affected ecosystems
    decrease our ecological foodprint by walking, eating locally, recycling etc.
  34. what are population dynamics
    the way a population's numbers grow and shrink over time
  35. how are populations of species affected by each other
    predation
  36. what are population frowth curves
    a graph plotting a species growth and decline over time
  37. what are the 4 stages in population growth curves
  38. what are the causes of extinction
    human activities, increased population, species introduction, destruction of habitat, pollution, climate change/ global warming, over-harvesting/over-fishing
  39. examples of causes of extinction
    asteroids, acid rain, volcanic eruptions, earthquakes, climatic heating/cooling, changes in sea level, glaciation, cosmic radiation, disease, invasive species
  40. how many mass extinctions have occurred on our planet
    3
    6
    5
    5
  41. what caused the dinosaurs to go extinct 65 MYA
    an asteroid
  42. what are the consequences of extinction
    loss of biodiversity, affects other species in the food web, allowing invasive spexies to take over, loss of species that may hold the secret to new drugs
  43. what terms do we use to classify species at risk
    • extinct
    • extirpated
    • endangered
    • threatened
    • vulnerable
  44. 4 example of density dependent factors
    • competition
    • predation
    • disease 
    • parasitism
    • crowding
    • stress
    • food supply
  45. 4 examples of density independent factors
    • climate change
    • forest fire
    • sunlight
    • human activities
    • oxygen levels
  46. create a food chain using the following organisms and label them as either producers or consumers
    sun
    wolf
    spruce tree
    white tailed deer
    • sun>spruce tree>white tailed deer>wolf
    •         producer     consumer            consumer
  47. increasing slowly
    lag
    explonential growth
    stationary 
    death
    lag
  48. increasing faster
    lag
    explonential growth
    stationary 
    death
    exponential growth
  49. birth rate = death rate
    lag
    explonential growth
    stationary 
    death
    stationary
  50. decrease quickly
    lag
    explonential growth
    stationary 
    death
    death
  51. few animals available to reproduce, because the population is low
    lag
    explonential growth
    stationary 
    death
    lag
  52. more are able to reproduce as the population grows
    lag
    explonential growth
    stationary
    death
    exponential growth
  53. all animals are healthy and reproducing
    lag
    explonential growth
    stationary 
    death
    stationary
  54. limiting factors cause the population to decrease, rapid decline in numbers
    lag
    explonential growth
    stationary
    death
    death
  55. how can we prevent the spread of zebra mussels to manitoba
    by draining all bilge water and rinse bait buckest, inspect all equipment
  56. what is the proper term for the population limit
    carrying capacity
  57. when a population has reached the amount where growth can no longer occur in a given area within natural resource limits, and without degrading the natural environment
    carrying capacity
    population
    limiting factors
    carrying capacity

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