Unit 3: Populations

Bike paths

________ cover the city → cyclists move freely from one area of the comm to another.

Demographic transition

________: when pop moves from first state to the second state States.

sanitary waste

Improved nutrition, availability of clean water, newly implemented sys for ________ disposal, better medical care.

JAP

Pop can drop below zero growth rate (RUS, S AFR, ________) Humans on earth Increase pop.

Immigration

________: movement of people into a pop.

Hunger

________: insufficient calories taken in to replace those being expended.

Emigration

________: movement of people out of a pop.

Malnutrition

________: poor nutrition that results from an insufficient or poorly balanced diet (lack essential vitamins and other components)

Macronutrients

________: nutrients needed in large amounts (proteins, carbs, fat)

Micronutrients

________: nutrients needed in smaller amounts (vitamins, iron, minerals)

Biotic potential

________: amount the population would grow it there were unlimited resources in its environment.

Rapid rail light rail sys

________: magnetic levitation → suspended above a track, train moves along by strong attractive and repulsive magnetic forces.

Green modes of transpo

________: bikes, moto scooters, electric bikes.

Est Metro

________ (regional body that deals with land use, city planning, and dev of natural areas)

Position of each individual

________ is not determined /influenced by the other members of the population.

Replacement birth rate

________: number of children a couple must have in order to replace themselves in a pop.

Affluent pop

________ have a much higher eco footprint than non- affluent ones.

Density dependent factors

________: changes populations size based on density.

Urban sprawl

________: emigration of ppl out of the city and into suburbs.

Unit 3

Populations Population description 2 Population growth 2 Population cycles 3 Human populations 3 Demographic transition model 4 States 4 Humans on earth 5 Increase pop 5 Resources 5 Sustainability 5 Population description

Population density

number of individuals of a population that inhabit a certain unit of land/water area

Population dispersion

how individuals of a population are spaced within a region

Biotic potential

amount the population would grow it there were unlimited resources in its environment

Carrying capacity (K)

max pop size that can be sustainably supported by the available resources in the region

Density dependent factors

changes populations size based on density

Density independent factors

change pop size regardless of pop size

Actual growth rate (%) = (birth rate

death rate) / 10

Emigration

movement of people out of a pop

Immigration

movement of people into a pop

Replacement birth rate

number of children a couple must have in order to replace themselves in a pop

0-14

pre-reproductive

Majority here

pop increase in size as time goes by

15-44

reproductive

45+

post-reproductive

Majority here

pop size decreases in the future bc mot are incapable of reproducing

Demographic transition

when pop moves from first state to the second state States

Bad MPX

erosion, chemical residues

Macronutrients

nutrients needed in large amounts (proteins, carbs, fat)

Micronutrients

nutrients needed in smaller amounts (vitamins, iron, minerals)

Hunger

insufficient calories taken in to replace those being expended

Malnutrition

poor nutrition that results from an insufficient or poorly balanced diet (lack essential vitamins and other components)

Undernourished

not receiving sufficient resources

Urban sprawl

emigration of ppl out of the city and into suburbs

Green modes of transpo

bikes, moto scooters, electric bikes

Larger cities

build subway systems (very expensive to dev; only cost eff when theyre enough ppl who will pay to use them)

Large/small cities

city buses → less expensive than subways to create and maintain; contribute to road congestion but decr congestion by having more ppl per vehicle

Rapid-rail/light rail sys

magnetic levitation → suspended above a track, train moves along by strong attractive and repulsive magnetic forces