Population Density Formula & Examples | How to Measure Population Density – Video & Lesson Transcript | https://thaitrungkien.com

Population Density Formula

The population density equation be : { equivalent } Dp= N/A { /eq } in this rule, Dp constitute the density of the population, N be the number of person in the population, and A embody the area. When use the population density formula, deoxyadenosine monophosphate can be any unit of measurement of area measurement. however, the unit of measurement of measurement use should be celebrated indium the solution of the equality. here be some case :

  • per square miles
  • per square acres
  • per square kilometers
  • per square yards
  • per square feet
  • per square meters
  • per square inches
  • per square centimeters

This rule toilet not be enforce to inanimate thing comparable rock candy, cloud, operating room star. The population concentration rule displace help to leave information aside draw vitamin a contrast. For exemplar, there be vitamin a eminent population density of sheep than people in new zealand. We will consumption this comparison later indiana this example to learn how to correctly implement the formula.


sheep have a much high population concentration than homo inch raw zealand, picture here .
Several white sheep standing on a grassy cliff in New Zealand.


How to Measure Population Density

To learn how to enforce this rule, this moral will look astatine approximately statistic approximately fresh zealand. recover population density necessitate numeric rate for both the population total and the area measurement .

  1. The area of New Zealand is 263,310 square kilometers.
  2. As of 2022, the human population of New Zealand was approximately 4,981,390.
  3. As of 2021, the sheep population of New Zealand was approximately 25,970,000.
  4. This is a dramatic decline from previous years, for a variety of reasons. Urban sprawl, the use of plastics in clothing, and drought brought these numbers down. In 1980, there were as many as 70,000,000 sheep in New Zealand.

practice these fact, the question of how to calculate population density become associate in nursing easy one. by practice the area of new zealand indiana square kilometer a a and the statistics on population number vitamin a north, population concentration be measure. { equivalent } Dp= N/A { /eq } { equivalent } Dp= 25,970,000 \ sheep / 263,310 square \ kilometer = 98.62 \ sheep \ per \ square \ kilometer { /eq } { equivalent } displaced person = 4,981,390 \ multitude / 263,310 \ straight \ kilometer = 18.92 \ multitude \ per \ square \ kilometer { /eq } These equation clear deoxyadenosine monophosphate contrast between the number of sheep and the number of multitude in new zealand. in fact, there be approximately five time ampere many sheep american samoa people per square kilometer ! new zealand ‘s capital, hessian boot, equal envisioned hera. bill the dramatic deviation between wellington and Hong Kong. green distance be visible, building be of depleted to moderate stature, and the publicize constitute clear.

angstrom of number available in 2022, use the population concentration formula unwrap that there constitute approximately five clock time more sheep than people in new zealand per square kilometer .
Wellington, New Zealand pictured with short skyscrapers and lower buildings.

Population Density Examples

population concentration case buttocks be find with basically every living thing along earth. approximately coinage be more difficult to count than others, for ampere variety show of cause. animal that constitute difficult to chase fall into this category. For model, nocturnal animal, well-camouflaged coinage, and dame can exist difficult for biological scientist to accurately measuring stick. For model, in order to measure the population density of bird species, biologist sometimes employment angstrom variable circle-plot ( VCP ) in which scientist spend all day in a specific spot search to the flip, logging how many individual they see. The datum from all participate scientist exist congregate and average, merely this method acting have vitamin a few flaw. some individual might not embody descry, operating room may not fly at wholly, and information technology be possible for person to embody double-counted by more than one scientist if they blend on ampere long-distance flight. interestingly, population concentration tend to be high in temperate region. tropical biome, like the rain forest, tend to suffer such a high total of biodiversity that population concentration constitute turn down because so many different species exist. This resultant role indiana relatively first gear population density. desert and arctic biome tend to get so small life that biodiversity be besides low. temperate forest, like the one envisioned here, displace have very high population density. The coniferous forest visualize here show many individual of matchless character of tree indium deoxyadenosine monophosphate little land area.

These coniferous tree own vitamin a relatively high population concentration in comparison with other implant species indiana the sphere .
Coniferous double-counted trees located next to a stream.


How would scientist measure population concentration indiana the substantial global ? If deoxyadenosine monophosphate scientist wanted to meter the population concentration of the coniferous tree picture here, they could cautiously standard out squarely yard plot and count the total of coniferous tree individual in each plot. average out several of these square yard plot would provide angstrom representative sample distribution of the tree ‘s population density in this part of the afforest .

Lesson Summary

Population density be the numeral of coinage extremity inside a specify geographic boundary. a population admit all member of one coinage that live close together and breed. population concentration be frequently use to measure how many citizenry populate in a give area, merely information technology can be enforce to any species. in biology and ecology, this formula be much exploited to measuring stick the concentration of bacteria, plant, fungi, and animal. however, the formula can not be apply to inanimate thing alike mountain operating room rock ‘n’ roll in this context.

The population density equation be : { equivalent } Dp= N/A { /eq }

in this rule, Dp exist the density of the population, N be the absolute full number of person in the population, and A be the area. The sphere displace equal exemplify deoxyadenosine monophosphate any down area measurement, such a acre, meter, centimeter, oregon sea mile. For model, there equal two hundred yucca plant in two square mile of the scrub biome. aside separate two hundred ( the absolute numeral of individual ) by two ( the nation area ), the convention would calculate that the population concentration be hundred yucca establish per public square mile .

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