Population

Front 1

Define: population growth

Back 1

The speed at which a given population grows.

Front 2

What does a population in a mature ecosystem do?

Back 2

The population growth remains relatively stable over a long term period. This means that the growth rate is zero.

Front 3

What is dynamic equilibrium or steady state?

Back 3

The growth rate is zero.

Front 4

What are the factors are effect population?

Back 4

Natality: birth rate
immigration: moving in
Emigration: moving out
Mortality: death rate.

Front 5

What is the formula for population growth rate?

Back 5

(Natality + immigration) - (mortality + emigration)

Front 6

Define: open population

Back 6

A population in which Natality, mortality, immigration, and emigration are all acting.

Front 7

Define: closed population

Back 7

A population which only Natality and mortality are acting (not emigration and immigration)

Front 8

Define: biotic potential

Back 8

The maximum number of offspring that a species could produce, if resources were limited.

Front 9

What are the factors that determine biotic potential?

Back 9

Birth potential: the maximum number of offspring per birth

Capacity of survival: the number of offspring that reach reproductive age

Procreation: the number of time that a species reproduces each year

Length of reproductive life: the age of sexual maturity and the number of years the individual can reproduce.

Hint 9

Babies cry pretty loud.

Front 10

Examples of limiting factors.

Back 10

Weather conditions, predators/prey relationships, and habitat degradation

Front 11

What do limiting factors affect?

Back 11

The carrying capacity.

Front 12

What are the abiotic factors that increase population?

Back 12

Favourable light
Favourable temperature
Favourable chemical environment

Front 13

Abiotic factors that decrease population?

Back 13

Too much or too little light
Too cold or too warm
Unfavourable chemical environment

Front 14

Biotic factors that increase population.

Back 14

Sufficient food
Low number or low effectiveness of predators
Few or weak diseases and parasites
Ability to complete for resources

Front 15

Biotic factors that decrease population.

Back 15

Insufficient food
High number or high effectiveness of predators
Many or strong diseases or parasites
Inability to successfully complete for resources

Front 16

What is the law of minimum?

Back 16

The nutrient in least supply is the one that limits growth.

Front 17

What is law of tolerance?

Back 17

States that an organism can survive within a certain range of an abiotic factor; above and below this limit it can't survive; the greatest this range of tolerance, the greater the organisms ability to survive.

Front 18

Define: carrying capacity

Back 18

The maximum population of a species that can be supported in defiantly be an ecosystem

Front 19

Define: carrying capacity

Back 19

The maximum population of a species that can be supported in defiantly be an ecosystem

Front 20

Define: population growth rates

Back 20

Growth rate may be exponential or logistic depending on carry capacity

Front 21

Define: carrying capacity

Back 21

The maximum population of a species that can be supported in defiantly be an ecosystem

Front 22

Define: population growth rates

Back 22

Growth rate may be exponential or logistic depending on carry capacity

Front 23

What are the factors that determine carrying capacity?

Back 23

Amount of materials and energy available to organs: the unlimited source of energy is the sun as well as carbon, hydrogen, nitrogen and water

Number of organisms in tropic level above and below population: populations are limited by food supply and predators

Competition between organisms: intra specific competition and inter specific competition

Density: the about of scape needed for each organism: population density. Dependent factory of density. Independent factors of density.

Hint 23

My temper can destroy

Front 24

Define: carrying capacity

Back 24

The maximum population of a species that can be supported in defiantly be an ecosystem

Front 25

Define: population growth rates

Back 25

Growth rate may be exponential or logistic depending on carry capacity

Front 26

What are the factors that determine carrying capacity?

Back 26

Amount of materials and energy available to organs: the unlimited source of energy is the sun as well as carbon, hydrogen, nitrogen and water

Number of organisms in tropic level above and below population: populations are limited by food supply and predators

Competition between organisms: intra specific competition and inter specific competition

Density: the about of scape needed for each organism: population density. Dependent factory of density. Independent factors of density.

Hint 26

My temper can destroy

Front 27

Define: intra specific competition

Back 27

Competition between members of the same species
Ex. Lynx vs lynx

Front 28

Define: carrying capacity

Back 28

The maximum population of a species that can be supported in defiantly be an ecosystem

Front 29

Define: population growth rates

Back 29

Growth rate may be exponential or logistic depending on carry capacity

Front 30

What are the factors that determine carrying capacity?

Back 30

Amount of materials and energy available to organs: the unlimited source of energy is the sun as well as carbon, hydrogen, nitrogen and water

Number of organisms in tropic level above and below population: populations are limited by food supply and predators

Competition between organisms: intra specific competition and inter specific competition

Density: the about of scape needed for each organism: population density. Dependent factory of density. Independent factors of density.

Hint 30

My temper can destroy

Front 31

Define: intra specific competition

Back 31

Competition between members of the same species
Ex. Lynx vs lynx

Front 32

Define: inter specific competition

Back 32

Competition between members of different species

Front 33

Define: carrying capacity

Back 33

The maximum population of a species that can be supported in defiantly be an ecosystem

Front 34

Define: population growth rates

Back 34

Growth rate may be exponential or logistic depending on carry capacity

Front 35

What are the factors that determine carrying capacity?

Back 35

Amount of materials and energy available to organs: the unlimited source of energy is the sun as well as carbon, hydrogen, nitrogen and water

Number of organisms in tropic level above and below population: populations are limited by food supply and predators

Competition between organisms: intra specific competition and inter specific competition

Density: the about of scape needed for each organism: population density. Dependent factory of density. Independent factors of density.

Hint 35

My temper can destroy

Front 36

Define: intra specific competition

Back 36

Competition between members of the same species
Ex. Lynx vs lynx

Front 37

Define: inter specific competition

Back 37

Competition between members of different species

Front 38

Define: population density

Back 38

How close together members of a species are, in a given area

Front 39

Define: carrying capacity

Back 39

The maximum population of a species that can be supported in defiantly be an ecosystem

Front 40

Define: population growth rates

Back 40

Growth rate may be exponential or logistic depending on carry capacity

Front 41

What are the factors that determine carrying capacity?

Back 41

Amount of materials and energy available to organs: the unlimited source of energy is the sun as well as carbon, hydrogen, nitrogen and water

Number of organisms in tropic level above and below population: populations are limited by food supply and predators

Competition between organisms: intra specific competition and inter specific competition

Density: the about of scape needed for each organism: population density. Dependent factory of density. Independent factors of density.

Hint 41

My temper can destroy

Front 42

Define: intra specific competition

Back 42

Competition between members of the same species
Ex. Lynx vs lynx

Front 43

Define: inter specific competition

Back 43

Competition between members of different species

Front 44

Define: population density

Back 44

How close together members of a species are, in a given area

Front 45

Define: dependant factor of density

Back 45

Affects population because of density
Ex. Disease. Good supply

Front 46

Define: carrying capacity

Back 46

The maximum population of a species that can be supported in defiantly be an ecosystem

Front 47

Define: population growth rates

Back 47

Growth rate may be exponential or logistic depending on carry capacity

Front 48

What are the factors that determine carrying capacity?

Back 48

Amount of materials and energy available to organs: the unlimited source of energy is the sun as well as carbon, hydrogen, nitrogen and water

Number of organisms in tropic level above and below population: populations are limited by food supply and predators

Competition between organisms: intra specific competition and inter specific competition

Density: the about of scape needed for each organism: population density. Dependent factory of density. Independent factors of density.

Hint 48

My temper can destroy

Front 49

Define: intra specific competition

Back 49

Competition between members of the same species
Ex. Lynx vs lynx

Front 50

Define: inter specific competition

Back 50

Competition between members of different species

Front 51

Define: population density

Back 51

How close together members of a species are, in a given area

Front 52

Define: dependant factor of density

Back 52

Affects population because of density
Ex. Disease. Good supply

Front 53

Define: Independent factors of density.

Back 53

Affects population regardless of density
Ex. Fire. Flood.

Front 54

Define the quadrant method.

Back 54

Works fine if the population does not move around

Front 55

Define the quadrant method.

Back 55

Works fine if the population does not move around

Front 56

Define: mark and recapture method

Back 56

Goo if population is moving.

Front 57

Define: linear growth rate

Back 57

Animals that take longer to mature, have longer gestation periods, produce single offsprings

Front 58

Define: exponential growth rate

Back 58

Animals that are quick to mature, have short gestation periods, produce multiple offsprings

Front 59

Define: logistical growth rate

Back 59

Occurs when exponential growth reaches carrying capacity

Front 60

Define: logistical growth rate

Back 60

Occurs when exponential growth reaches carrying capacity