Vocabulary Review

The number of organisms that live in a specified area. Ex: 1 bird/m2

Population density

The amount of time for a population to double

Doubling time

The amount of organisms an ecosystem can support

Carrying Capacity

Organisms that produce quickly with little or no parental care Organisms that produce quickly with little or no parental care. Ex: roaches

R-strategist

An organism that reproduces slowly with a lot of parental care An organism that reproduces slowly with a lot of parental care. Ex: a human

K-Strategist

The study of populations

Demography/Demographics

Late loss; k-selected species What type of survivorship curve?

Type I Survivorship

Constant loss of organisms What type of survivorship curve?

Type II Survivorship

Early loss of organisms; r-selected species What type of survivorship curve?

Type III Survivorship

Controls on population not due to land issues; Hurricanes

Density independent factor

Controls on Population due to limited land issues Controls on Population due to limited land issues. Ex: disease, competition

Density dependent factor

The change in the births and deaths due to the industrialization of a country.

Demographic transition

The number of babies that do not make it to their first birthday

Infant mortality rate

The number of children a couple must have to replace them when they die.

Replacement Fertility Rate/Level

The number of children a woman will have had over her lifetime.

Total Fertility Rate

A. algae. B. predatory birds. C. zooplankton. D. small fish. You have been studying a large lake ecosystem. You learn that PCBs have been dumped into the water. You predict that the most effected population would be the A. algae. B. predatory birds. C. zooplankton. D. small fish.

A. algae. B. predatory birds. C. zooplankton. D. small fish. You have been studying a large lake ecosystem. You learn that PCBs have been dumped into the water. You predict that the most effected population would be the A. algae. B. predatory birds. C. zooplankton. D. small fish.

Calculate the doubling time of the population in Kellertopia Calculate the doubling time of the population in Kellertopia. The annual population growth in this fictive country is 5.0 %. a) 14 month b) 140 month c) 1.4 years d) 14 years 7 years RULE OF 70

Which of the following equations accurately represents population growth? A. r = (b + i) - (d + e) B. r = (b – i) ÷ (d – e) C. r = (b + d) + (i + e) D. r = (b – d) - (i – e)

C. being characteristic The graph below would best be described as: A. Linear growth B. a J shaped curve. C. being characteristic of exponential growth. D. Logistic Growth.

Factors that limit population size are called: A. carrying capacity B. biotic potential. C. environmental resistance D. survival of the fittest

D. stabilize at that level. When the carrying capacity of a population is exceeded, the population will normally: increase at a slower rate. B. decrease to, or below, the carrying capacity. C. Increase rapidly. D. stabilize at that level.

Features that are typical of r-selected species include all of the following EXCEPT: A. small body size B. late reproduction C. large broods D. short life span.

A. native species. B. keystone species. C. indicator species. Species whose roles in an ecosystem are much more important than their abundance would suggest are called A. native species. B. keystone species. C. indicator species. D. specialist species.

A. Competition. B. Mutualism. C. Parasitism. D. Commensalism. A symbiotic relationship where one individual benefits and the other organism is neither harmed nor helped. B. Mutualism. C. Parasitism. D. Commensalism.

A. ~10 mg/kg B. ~ 50 mg/kg C. ~ 90 mg/kg D. 1000 mg/kg What would be the LD50 for this toxin? B. ~ 50 mg/kg C. ~ 90 mg/kg D. 1000 mg/kg