#### Study sets matching "term:logistic+growth = a model describing population growth that levels off as population size approaches carrying capacity"

#### Study sets matching "term:logistic+growth = a model describing population growth that levels off as population size approaches carrying capacity"

b

dN/dt=rN

Nt=N0e^rt

potential

Nt=R0^t(N0)... The equation above would be useful in estimating…

the differential form (to find change in population size)

the integral form (to find population size)... -where N0= number…

populations of all organisms have the ________ to grow expone…

b

Nt=R0^t(N0)... The equation above would be useful in estimating…

dN/dt=rN

the differential form (to find change in population size)

Survivorship curve

Immigration

Emigration

Exponential growth

Graph that shows how the likelihood of death varies with age.

The arrival of individuals from outside a given area.

The departure of individuals from a given area.

When a population increases by a fixed percentage each year.

Survivorship curve

Graph that shows how the likelihood of death varies with age.

Immigration

The arrival of individuals from outside a given area.

Three factors that affect the size (de…

population growth occurs when

Factors that cause population growth t…

competition

1. Birth rate... 2. Death rate... 3. Immigration and Emigration

there is an abundant amount of food, space, and resources wit…

1. competition 2. predation ... 3. parasitism 4. disease

when the population becomes crowded, organisms compete with o…

Three factors that affect the size (de…

1. Birth rate... 2. Death rate... 3. Immigration and Emigration

population growth occurs when

there is an abundant amount of food, space, and resources wit…

population

carrying capacity

limiting factor

density dependent factor

group of individuals of the same species living in a particul…

largest number of individuals of a population that a environm…

an environmental factor that prevents a population from incre…

limiting factor that depends on population size

population

group of individuals of the same species living in a particul…

carrying capacity

largest number of individuals of a population that a environm…

factors affecting population

immigration

emigration

exponential growth

birth rate, death rate, immigration, and emigration

individuals move into its range from elsewhere

individuals move out of a range

the larger a population gets, the faster it grows

factors affecting population

birth rate, death rate, immigration, and emigration

immigration

individuals move into its range from elsewhere

intrinsic growth rate

r= birthrate - death rate

exponential growth model

future population size

the highest possible per capita growth rate for a population

intrinsic growth rate equation

a model of population growth in which the population increase…

Nt

intrinsic growth rate

the highest possible per capita growth rate for a population

r= birthrate - death rate

intrinsic growth rate equation

A differential equation that describes…

Background of exponential growth

This model deals with limited resource…

The logistic growth model is density-_…

Exponential growth model

Increasing population size = immigration and births... Decreasin…

Logistic growth model

Dependent (relies on the population size)

A differential equation that describes…

Exponential growth model

Background of exponential growth

Increasing population size = immigration and births... Decreasin…

Population growth is affected by...

Exponential growth

Exponential growth happens when..

Logistic growth

1. Births... 2. Deaths... 3. Immigration (individuals move into are…

If births + immigration > deaths + emigration

Population has unlimited resources, "ideal conditions", but i…

Begins as exponential growth until reality strikes and resour…

Population growth is affected by...

1. Births... 2. Deaths... 3. Immigration (individuals move into are…

Exponential growth

If births + immigration > deaths + emigration

Exponential Growth

Logistic Growth

Carrying Capacity

Population Crash

growth pattern in which the individuals in a population repro…

A model describing population growth that levels off as popul…

largest number of individuals of a population that a environm…

a sudden population decline caused by predation, waste accumu…

Exponential Growth

growth pattern in which the individuals in a population repro…

Logistic Growth

A model describing population growth that levels off as popul…

population

community

population density

exponential growth

a collection of individuals of all one species living in a sp…

a collection of several populations interacting with one anot…

the number of organisms of a population living in a specified…

there is plenty of food and space and a population grows rapi…

population

a collection of individuals of all one species living in a sp…

community

a collection of several populations interacting with one anot…

immigration

emigration

exponential growth

logistic growth

the movement of individuals into a population from another po…

the movement of individuals out of a population and into anot…

a rapid population increase due to an abundance of resources

a population begins with a period of slow growth followed by…

immigration

the movement of individuals into a population from another po…

emigration

the movement of individuals out of a population and into anot…

discrete annual growth

What are the geometric growth equations?

A population has N=100 individuals at…

If a population grows continuously, N[…

populations that grow in pulses

N[t] = N[o] λ^t... N[t+1] = N[t] λ... [subscript]

N5=100 (1.05^2)... N5=110

r= the per capita rate of increase (intrinsic rate of increas…

discrete annual growth

populations that grow in pulses

What are the geometric growth equations?

N[t] = N[o] λ^t... N[t+1] = N[t] λ... [subscript]

Larvae and mature adult has different…

Many invertebrates are small and have…

R0 - the net reproductive rate of fema…

r ( per capita rate of increase)

Larvae may not be able to travel very far, but mature adults…

they solve this problem by having at least two life stages.

the average number of offspring reproduced by a female over h…

r= ln(R0)/T, where T = generation time... can be interpreted as…

Larvae and mature adult has different…

Larvae may not be able to travel very far, but mature adults…

Many invertebrates are small and have…

they solve this problem by having at least two life stages.

Types of Growth

Predator-Prey Interactions

Population Growth Rate

Birth Rates

Exponential, Logistic

Predator: an animal who eats another... Prey: an animal hunted o…

The rate of growth in an area

The rate of births in an area

Types of Growth

Exponential, Logistic

Predator-Prey Interactions

Predator: an animal who eats another... Prey: an animal hunted o…

Immigration

Emigration

exponential growth

logistic growth

the movement of individuals into a population from another po…

the movement of individuals out of a population and into anot…

occurs when a population size increases dramatically over a p…

a population begins with a period of slow growth followed by…

Immigration

the movement of individuals into a population from another po…

Emigration

the movement of individuals out of a population and into anot…

immigration

emigration

exponential growth

logistic growth

the movement of individuals into a population from another po…

the movement of individuals out of a population from another…

occurs when a population size increases dramatically over a p…

a population begins with a period of slow growth followed by…

immigration

the movement of individuals into a population from another po…

emigration

the movement of individuals out of a population from another…

immigration

emigration

exponential growth

logistic growth

the movement of individuals into a population from another po…

the movement of individuals out of a population and into anot…

when a population size increases dramatically over a period o…

a population begins with a period of slow growth followed by…

immigration

the movement of individuals into a population from another po…

emigration

the movement of individuals out of a population and into anot…

Carrying capacity (K)

Logistic population growth

Logistic growth model

small, small

the maximum population size in the environment can support

the per capita rate of increase declines as carrying capacity…

delta N/ delta t=r(max)N*(K-N)/K

when N in large compared to K, then (K-N)/K is ________, and…

Carrying capacity (K)

the maximum population size in the environment can support

Logistic population growth

the per capita rate of increase declines as carrying capacity…

immigration

emigration

exponential growth

logistic growth

the movement of individuals into a population from another po…

the movement of individuals out of a population and into anot…

occurs when a population size increases dramatically over a p…

a population begins with a period of slow growth followed by…

immigration

the movement of individuals into a population from another po…

emigration

the movement of individuals out of a population and into anot…

Population density

Random dispersion

Population dispersion clumping

population dispersion uniform

the number of individuals per unit area

populations to be found randomly about their habitat. In immo…

populations to be found in tight clusters, dispersed across a…

populations to be found evenly distributed about their habita…

Population density

the number of individuals per unit area

Random dispersion

populations to be found randomly about their habitat. In immo…

population size

birth rate

death rate

immigration

number of individuals of the same species living in one area

rate at which new individual organisms are born, increases po…

rate at which individual organisms die, reduces population size

movement of individuals INTO a population, increases populati…

population size

number of individuals of the same species living in one area

birth rate

rate at which new individual organisms are born, increases po…

Demography

Growth Rate

Intrinsic Growth Rate

Exponential Growth Model

study of populations

the number of new individuals that are produced minus those w…

the highest possible per capita growth rate for a population

a model of population growth in which the population increase…

Demography

study of populations

Growth Rate

the number of new individuals that are produced minus those w…

Population Growth

Model Parameter:

Assumptions:

Exponential Growth Model... Assumptions

Nt= # + Birth - Death + Immigration - Emigration

Variables we need to know to be able to make predictions

Conditions we assume are met to simplify the model

- Closed population ... - Birth rates and death death rates are…

Population Growth

Nt= # + Birth - Death + Immigration - Emigration

Model Parameter:

Variables we need to know to be able to make predictions

demography

growth rate

intrinsic growth rate (r)

exponential growth model

the study of populations

in a population, the number of new individuals that are produ…

the highest possible per capita growth rate for a population

a model of population growth in which the population increase…

demography

the study of populations

growth rate

in a population, the number of new individuals that are produ…

population density

random dispersion

clumping dispersion

uniform dispersion

the number of individuals of a population that inhabit a cert…

describing a dispersion pattern in which individuals are spac…

individuals "flock" together; most common dispersion pattern

even spacing of individuals of the same species within an area

population density

the number of individuals of a population that inhabit a cert…

random dispersion

describing a dispersion pattern in which individuals are spac…

Dispersion

example of dispersion

what are the 3 main types of dispersion?

Clumped Distribution

pattern of spacing among individuals within a certain area ... (…

birds on a line will disperse withing pecking distance, to be…

1. Clumped... 2. Uniform... 3. Random distribution

pattern: individuals have a higher probability of being found…

Dispersion

pattern of spacing among individuals within a certain area ... (…

example of dispersion

birds on a line will disperse withing pecking distance, to be…

All the individuals of a species that…

the statistic sway of populations make…

what are 3 key features of population

measurement of population per unit are…

population

demography

size, density, & dispersion

density

All the individuals of a species that…

population

the statistic sway of populations make…

demography

Dispersion

example of dispersion

what are the 3 main types of dispersion?

Clumped Distribution

pattern of spacing among individuals within a certain area ... (…

birds on a line will disperse withing pecking distance, to be…

1. Clumped... 2. Uniform... 3. Random distribution

pattern: individuals have a higher probability of being found…

Dispersion

pattern of spacing among individuals within a certain area ... (…

example of dispersion

birds on a line will disperse withing pecking distance, to be…

population density

random dispersion

clumping dispersion

uniform dispersion

Number of individuals per unit area

individuals are distributed unpredictably within a uniform ha…

Most common pattern; individuals flock together, certain plan…

The pattern in which individuals are equally spaced throughou…

population density

Number of individuals per unit area

random dispersion

individuals are distributed unpredictably within a uniform ha…

Charles Darwin

Thomas Malthus

Exponential population growth

Logarithmic plot

English biologist who published "The Origin of Species" in 18…

An economist whose essay on the principles of population emph…

Population expansion characterized by an accelerating growth…

A graph with at least one axis scaled as exponential values.…

Charles Darwin

English biologist who published "The Origin of Species" in 18…

Thomas Malthus

An economist whose essay on the principles of population emph…

population

carrying capacity

limiting factor

density dependent factor

group of individuals of the same species living in a particul…

largest number of individuals of a population that a environm…

an environmental factor that prevents a population from incre…

limiting factor that depends on population size

population

group of individuals of the same species living in a particul…

carrying capacity

largest number of individuals of a population that a environm…

demography

growth rate

intrinsic growth rate (r)

exponential growth model

the study of populations

in a population, the number of new individuals that are produ…

the highest possible per capita growth rate for a population

a model of population growth in which the population increase…

demography

the study of populations

growth rate

in a population, the number of new individuals that are produ…

Demography

Growth rate

Intrinsic growth rate (r)

Exponential growth model

The study of populations

In a population, the number of new individuals that are produ…

The highest population per capita growth rate for a population

a model of population growth rate in which the population inc…

Demography

The study of populations

Growth rate

In a population, the number of new individuals that are produ…

Population size

Population density

Quadrat

Distribution patterns (clumped, unifor…

Number of individual species living within a specific area

Number of individuals per unit of area

An area of specific size used for sampling a population

Patterns in which a population is distributed or spread

Population size

Number of individual species living within a specific area

Population density

Number of individuals per unit of area

population

carrying capacity

limiting factor

density dependent factor

group of individuals of the same species living in a particul…

largest number of individuals of a population that a environm…

an environmental factor that prevents a population from incre…

limiting factor that depends on population size

population

group of individuals of the same species living in a particul…

carrying capacity

largest number of individuals of a population that a environm…

Demography

Growth Rate

Intrinsic Growth Rate (r)

Exponential Growth Rate

the study of populations

in a population, the number of new individuals that are produ…

the highest possible per capita growth rate for a population

a model of population growth in which the population increase…

Demography

the study of populations

Growth Rate

in a population, the number of new individuals that are produ…

Population Growth Rate

Mortality

Survivorship Curves

Birth Rate

Is determined by births, deaths, immigration, and emigration…

The rate at which individuals die.

Show how individuals of different ages have different probabi…

Birth rate is expressed as number of births per 1000 people p…

Population Growth Rate

Is determined by births, deaths, immigration, and emigration…

Mortality

The rate at which individuals die.

population size

population density

global scale

local scale

measured for species which have clear boundaries or larger or…

measured for species which do not have clear boundaries and/o…

closed system, subject to changes via births and deaths

open system, subject to changes via births and deaths, and im…

population size

measured for species which have clear boundaries or larger or…

population density

measured for species which do not have clear boundaries and/o…

Thomas Robert Malthus was an English c…

because his essay on population discus…

"Population when unchecked, increases…

double

Who was Malthus?

Why is Malthus important?

A famous saying by Malthus

population when unchecked will ________itself in every twenty…

Thomas Robert Malthus was an English c…

Who was Malthus?

because his essay on population discus…

Why is Malthus important?

Population

Population Sampling

Density

Mark-Recapture Method

A group of individuals that belong to the same species and li…

Difficult to count EVERY individual in a population so,... -Samp…

Number of individual per area

1)Capture,mark and release (M) individuals... 2)Recapture anothe…

Population

A group of individuals that belong to the same species and li…

Population Sampling

Difficult to count EVERY individual in a population so,... -Samp…

population density

population size

population distribution

sex ratio

Number of individuals per unit area

the number of individuals in a population

how population is spread out in an area

The number of males per 100 females in the population.

population density

Number of individuals per unit area

population size

the number of individuals in a population

A population is defined as a group of…

Which of the following is an assumptio…

Some time after the Eurasian species c…

quiz question:... Which is likely to fol…

of the same species occupying a particular space at a particu…

- reproduction can (and does) occur continuously... - population…

...

II & III only

A population is defined as a group of…

of the same species occupying a particular space at a particu…

Which of the following is an assumptio…

- reproduction can (and does) occur continuously... - population…

exponential growth

limiting factors

carrying capacity

more-developed countries

the growth of any quantity at a fixed percentage per unit of…

single factor that limits the growth, abundance, or distribut…

maximum population of a given species that an area of land or…

highly industrialized countries where the average level of in…

exponential growth

the growth of any quantity at a fixed percentage per unit of…

limiting factors

single factor that limits the growth, abundance, or distribut…

Carrying Capactiy (K)

chi-square (X^2)

density-dependent factor

density-independent factor

the maximum population of a species that a particular ecosyst…

a statistic used to measure how much a sample distribution di…

biotic factors in the environment, such as disease and compet…

abiotic factors in the environment, such as floods and extrem…

Carrying Capactiy (K)

the maximum population of a species that a particular ecosyst…

chi-square (X^2)

a statistic used to measure how much a sample distribution di…

Ch.12 Concepts

Demography

Intrinsic growth rate (r):

Growth rate

-Under ideal conditions, populations can grow rapidly.... -Popul…

The study of populations.... In the 19th century, Charles Darwi…

The highest possible per capita growth rate for a population.…

In a population, the number of new individuals that are produ…

Ch.12 Concepts

-Under ideal conditions, populations can grow rapidly.... -Popul…

Demography

The study of populations.... In the 19th century, Charles Darwi…

Natality (n)

Mortality (m)

Immigration (i)

Emigration (e)

The number of births per unit of time.

The number of deaths per unit of time.

The number of individuals that move into an existing populati…

The number of individuals that move away from an existing pop…

Natality (n)

The number of births per unit of time.

Mortality (m)

The number of deaths per unit of time.

carrying capacity

limiting factors

density dependent factors

density independent factors

the maximum number of individuals of a particular species tha…

factors that controls the growth of a population

operate strongly only when population density reaches a certa…

affect all populations in similar ways, regardless of populat…

carrying capacity

the maximum number of individuals of a particular species tha…

limiting factors

factors that controls the growth of a population