Communities are Comprised of Populations

Definitions you need to know

Choose from the following words to fill in the questions/blanks below: population, biological community, ecosystem, landscape, biome, 6 biogeographic realms, biosphere

1. connected ecosystems                                    5. physical environment + its biological communities

2. two or more species                                         6. an example would be the neotropics

3. a major ecosystem, on a global scale                7. all levels on Earth that contain life

4. individuals of one species

Community Ecology

8. Which of the following is not an example of a community?

a) birds in a coniferous forest    b) insect pollinating a flower    c) mircobes in the bole of a tree    d) James living in an abandoned neighborhood
e) none of the above

9. Which of the following describes the trophic structure of an herbivore the best?

a) primary producer    b) secondary producer    c) primary consumer    d) secondary consumer    e) decomposer

10. _____ _____ is a simple count of the number of different species

11. _____ _____ of species is how dense the populations of the different species are relative to one another

12. T/F: Communities do not differ in diversity

13.  The larger the area of a community, the less likely its component populations will experience?

a) reproduction    b) exaptation    c) extinction    d) natural selection     e) diversity

14. Area effect is one factor that allows for communities to differ in diversity, the other one is _____ _____

15. What are the three different dynamics in communities?

16. A receding glacier exhibits what kind of ecological succession?

17. Which kind of succession is more common?