Name ______________________________ Class ___________________ Date __________________
Skills Worksheet
Community Ecology
In the space provided, write the letter of the description that best matches the term
or phrase.
e ____ 1. species richness
m ___ 2. predation
h ____ 3. parasitism
a ____ 4. disturbance
f ____ 5. symbiosis
b ____ 6. mutualism
k ____ 7. commensalism
d ____ 8. primary succession
g ____ 9. secondary succession
c ____ 10. fundamental niche
j ____ 11. realized niche
i ____ 12. climax community
l ____ 13. pioneer species
a. volcanic eruption, forest fire, flood, or
drought
b. a relationship in which both participating
species benefit
c. the entire range of conditions an
organism is potentially able to occupy
d. development of community in area which
has not supported life before
e. number of species in the community
f. two or more species living together in a
close, long-term relationship
g. replacement of species after a disturbance
h. one organism feeds on and usually lives
on or in another larger organism
i. stable end point community in succession
j. the part of its fundamental niche that a
species occupies
k. a relationship in which one species
benefits and the other is neither harmed
nor helped
l. species that is predominant early in
succession
m. the act of one organism feeding on
another
Complete each statement by writing the correct term or phrase in the space
provided.
14. A type of interaction in which two or more species use the same limited
resource is called : competitive exclusion
15. In a community, species richness is the relative abundance of each species.
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Modern Biology
39
Community Ecology
Name ______________________________ Class ___________________ Date __________________
Community Ecology continued
17. A lion that eats an antelope is an example of a predator or poredator-prey
interaction.
18. The tendency of a community to maintain relatively constant conditions is
_____resiliency__________________.
19. The relationship between a dog and a deer tick is an example of
_____parasitism__________________.
20. _____secondary______________ ____succession________________ is the
gradual, sequential regrowth of a community of species in an area.
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Modern Biology
40
Community Ecology