Download Populations - Fort Thomas Independent Schools

APES Review 6 Populations
Population Ecology
Factors that Affect Population
Viability
Carrying Capacity
Biotic Potential
J Curves
Thomas Malthus
S Curves
Density-Dependent Factors
Density-Independent Factors
r-strategists
r-strategists Reproductive Char.
K-strategists
K-strategists Reproductive Char.
Historical Human Population Sizes
Human Population Surges
Population Change Calculation
Rule of 70
Pop Growth 8000BCE-5000BCE
Pop Growth 5000BCE-1650CE
Pop Growth 1650BCE-Present
Pop Growth Present-2050
Human Pop. Distribution
Questions:
1. Of the following terms for population growth graphs, which are synonymous? Logistical, logarithmic,
exponential, sigmoidal, J-shaped, S-shaped
2. Draw a labeled example graph of a population that is growing exponentially and one that is growing
logistically
3. Describe the differences in situations that result in the two types of graphs drawn I n the previous question.
4. Predict outcomes of exponential population growth and logistic population growth.
5. Draw a graph with the independend axis as “latitude”and the dependent axis as the “number of species”.
What would the graph look like.
6. For any (or several different) regions(s) of the earth, name a species that is non-native in each category:
river animal, terrestrial animal, terrestrial plant, terrestrial fungus. Describe how each species was introduced,
its niche, its survival strategy and the specific way(s) in which it has impacted the local flora and fauna.
7. What is the difference between a keystone and an indicatory species?
8. Using an example, explain how competition between species and within a species is dealt with over time.
9. Using an example, explain each term: symbiosis, predation, parasitism, mutualism, co-evolution, mimicry,
and commensalism.
10. Explain succession by giving an example of the progression of an ecosystem from primary succession into
late secondary succession. How long would this process take and how would the biotic and abiotic factors
change over this time.
11. Describe what is meant by carrying capacity. Explain how populations can exist far above or below the
carrying capacity.
12. Name three density-dependent and three density- independent factors that affect carrying capacity.
13. Give an aquatic and terrestrial example of a species that is an r-selected species and list 5 characterisitics
of the niche/survival strategy of each. Repeat the process for a K-selected species.
14. Graph the predicted growth patterns of an r-selected species and a K-selected species introduced to a new
environment. Describe the advantages and disadvantages of each type of species.
15. Name 3 fast-growing countries, one with a large population, one with a medium size population and one
with a relatively small population. Do the same for three slow-growing countries.
16. Define TFR and explain why it must drop below the replacement value in order to achieve ZPG.
17. Name 5 things (in order from the greatest to the least impact) that affect population growth. Support your
response with facts and examples.
18. Draw an age structure histogram for a country with rapid growth, zero growth, slow growth, and negative
growth