lecture 11 Flashcards

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1
Q

population

A

a group of individuals of the same species

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2
Q

population ecology

A

how and why the number of individuals in a population can change overtime

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3
Q

what is the range of a pppulation

A

the geographic distribution

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4
Q

what two factors determine range

A

Abiotic and biotic factors

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5
Q

What are three types of arrangements?

A

Random distribution
uniform distribution
Clumped distribution

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6
Q

What arrangement do humans have?

A

clumped distribution

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7
Q

What does demography mean?

A

The study of factors that determine the size and structure of a population

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8
Q

What four processes determine the number of individuals in a population and how

A

immigration
Births
Emigration
Deaths

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9
Q

What are life tables?

A

A table mapping out the probability of an individual, the probability of it will survive and reproduce

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10
Q

What are three types of survivorship?

A

type one
Type two
Type three

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11
Q

density independent factors

A

Alter birth rates, and death rates

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12
Q

Density dependent factors

A

Limit how big a population is

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13
Q

Age structure trends

A

Varies location

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14
Q

How large is current human population?

A

almost 8 billion

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15
Q

how can population ecology help conserve biodiversity?

A

Design management strategies for preventing species from becoming endangered or extinct

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16
Q

What does community mean?

A

All different species or populations interacting in an area

17
Q

what are the four most common types of species interactions?

A

Commensalism
Competition
Consumption
Mutualism

18
Q

Fundamental niche

A

Theoretical

19
Q

Realized niche

A

Actual

20
Q

competition over generations can lead to what

A

Niche differentiation, and character displacement

21
Q

What are three types of consumption?

A

herbivory
predation
parasitism

22
Q

Integrated pest management

A

any strategy to maximize agriculture while reducing insects and harmful compounds

23
Q

what are the four key attributes of community structure?

A

Number of species
Some of interactions
Relative abundance
Physical attributes

24
Q

what happens after a servers disturbance

A

succession