Ecology: Habitats

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Ecology Habitats Population
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• Ecology Habitats Populations

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Tell whether the organism is abiotic or biotic.

• rabbit
• sunlight
• pebble
• sunflower

• biotic
• abiotic
• abiotic
• biotic

4

• Put the terms in order from smallest to largest
  community, organism, ecosystem, population

Smallest Largest

• Organism
• Population
• Community
• Ecosystem

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Tell whether the following are a single organism,
a population, or a community

• All the ladybugs in Robbinsville, NJ
• Zebras
• All the flamingoes in Miami, Fl
• All the prairie dogs, hawks, grasses, badgers,
  and snakes found on the prairie
• Honey bees

• population
• single species
• population
• community
• single species

6
Identify the study direct observation, indirect
observation, mark-and-recapture, or sampling

• Counting all the sunflowers in the field
• Calculating the population of messenger pigeons
  by capturing and marking them, releasing them to
  the wild, and returning at a later date to
  capture more.
• Using the average number of bees usually found in
  a hive and multiplying by the number of hives in
  an area.
• Counting the number of June bugs in a one square
  meter of a meadow and multiplying by the total
  area of the meadow to estimate the total number
  of June bugs.

Direct observation
Mark-and-recapture
Indirect observation
Sampling
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What is the formula for population density?
of individuals
Population density
unit area
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Use the diagram to answer each question.

• Questions
• How was the falcon population changing from 1994
  to 1997?
• Which letter marks the peak of the falcon
  population?
• What was the falcon population in 1988?

C
Increasing
B
A
Letter C
About 400 falcons
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abiotic factor or biotic factor?

• The living parts of a habitat
• The non-living parts of a habitat

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immigration or emigration?

• When organism move out of a population
• When organisms move into a population

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birth rate or death rate?

• The number of deaths in a population over time
• The number of births in a population over time

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species, population or community?

• All the members of 1 species that live in a
  particular area
• All the different populations that live together
  in an area
• A group of organisms that are physically similar
  and can successfully mate

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ecology, ecosystem, or habitat?

• A community of organisms along with the
  non-living factors
• The study of how living things interact with each
  other and their environment
• The environment that provides what an organism
  needs to live

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limiting factors, carrying capacity, or
population density?

• The number of individuals in a given area
• An environmental factor that causes a population
  to decrease
• The largest population that an area can support

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Good Luckstudy!