Chapter 19 Flashcards Quizlet PDF

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9/22/2021

Chapter 19 Flashcards | Quizlet

Chapter 19 Terms in this set (25)

demography:

Which of the following

a set of mathematical tools designed to describe populations and investigate how they change.

quadrant

methods will provide information to an ecologist about both the size and density of a population?

As this graph shows,

Smaller animals require less food and others

population density typically

resources, so the environment can support more

decreases with increasing

of them per unit area.

body size. Why do you think this is the case?

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Which of the following is best

life table

at showing the life expectancy of an individual within a population?

Human populations have

Type I

which type of survivorship curve?

Describe how a researcher would determine the size of a penguin population in Antarctica using the mark and release method.

life table:

mark and recapture

The researcher would mark a certain number of penguins with a tag, release them back into the population, and, at a later time, recapture penguins to see what percentage was tagged. This percentage would allow an estimation of the size of the penguin population.

a table showing the life expectancy of a population member based on its age

a method used to determine population size in mobile organisms

the proportion of population surviving to the mortality rate

beginning of an age interval that dies during that age interval

population density

population size

the number of population members divided by the area being measured

the number of individuals in a population

a square within which a count of individuals is quadrat

made that is combined with other such counts to determine population size and density in slow

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species distribution pattern

surviorship curve

Animal species with small

Only DKK 25/month

the distribution of individuals within a habitat at a given point in time

a graph of the number of surviving population members versus the relative age of the member

relatively high population densities

body mass tend to have

what affects surviorship within

adequate water and food resources, access to

a population

mates, cover/shelter, carrying capacity

a medium sized species of rodent that gives birth Type 2 surviorship curve

to 2 or 3 offspring a year has an age-class survorship more or less constant from year 1 through year 7

Large mammals are

k-selected

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mysis hrimp were introduced presumably to increase the food supply, but settled down deep The ecological collapse of

in the lake where the lake trout lived, which

kokanee salmon in flathead

caused the non active lake trout population to

lake montana

boom and which then increased predation on the native kokanee

What does not apply to K-

fast maturation

selected species?

which was not presented in

kudzu vine

lecture as an example of a keystone or foundation species

does not apply to savanna

absence of fire

biome

desert north farthest

great basin dessert

farthes south and east is the

chihuahuan dessert

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