1. Ecology: Habitats & Population

2. Ecology: Habitats & Populations

3. Tell whether the organism is abiotic or biotic.  rabbit  sunlight  pebble  sunflower  biotic  abiotic  biotic

4.  Put the terms in order from smallest to largest: community, organism, ecosystem, population  Organism  Population  Community  Ecosystem Smallest Largest

5. 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

7. What is the formula for population density? Population density = # of individuals unit area

8. Use the diagram to answer each question. Questions: 1.How was the falcon population changing from 1994 to 1997? 2.Which letter marks the peak of the falcon population? 3.What was the falcon population in 1988? A B C Increasing Letter C About 400 falcons

9. abiotic factor or biotic factor?  The living parts of a habitat  The non-living parts of a habitat

10. immigration or emigration?  When organism move out of a population  When organisms move into a population

11. birth rate or death rate?  The number of deaths in a population over time  The number of births in a population over time

12. 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

13. 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

14. 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

15. Good Luck…study!