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Population density (in agriculture standing stock and standing crop) is a measurement of population per unit area or unit volume. It is frequently applied to living organisms, and particularly to humans. It is a key geographic term. Biological population densitiesPopulation density refers to the number of individuals per given unit of land area (usually square kilometers or square miles). It is a common biological measurement and is more often used by conservationists as a measure than population size. Low densities may cause an extinction vortex and lead to further reduced fertility. This is called the Allee effect after the scientist who identified it. Examples of the causes in low population densities include:
Different species have different expected densities. R-selected species commonly have high population densities, while K-selected species may have lower densities. Low densities may be associated with specialized mate location adaptations such as specialized pollinators; as found in the orchid family (Orchidaceae). From Wikipedia under the
GNU Free Documentation License From Yahoo Image Search: "Population density"  energybulletin.net kristinsponsler hu, 11 Mar 2010 16:22:12 GM Increasing density doesn't have to mean building massive high-rises: adding just a few stories on existing or new mixed-use buildings can double . population density. --and well-designed, increased density can also improve community quality ...  bloggers-bark.blogspot.com Santosh Rajashekar ue, 09 Mar 2010 09:58:00 GM According to Poyarkov, there are 3000 to 35000 stray dogs in Moscow, while the wolf population for the whole of Russia is about 5000 to 6000. . Population density. , he says, determines how frequently the animals come into contact with ...  joeplanner.blogspot.com Joe the Planner Mon, 08 Mar 2010 04:09:45 GM The wording of the official US Census Bureau definition is a little tricky, but for these purposes urbanized area refers to just about any census block within Erie and Niagara Counties that has a . population density. greater than 1000 ... From Google Blog Search: "Population density"  news.google.com Los Angeles Times Alexandre said limited space and population density make it unlikely that archaeologists can carry out further excavations in the area, leaving this ... Photos: Jesus' boyhood home could have looked like this People's Daily Online all 23 news articles » news.google.com Dissident Voice With nearly 1.5 million people, Gaza has an overall population density twice that of a typical suburban US city. Gaza cannot possibly feed itself. ... and more » news.google.com The Australian "That hypermarket really depends on a large number of locations and high population density to make it work, and we don't have either," he says. ... and more » From Google News Search: "Population density" What is the Average Population Density of all the countries in the world? Q. the population Density of the entire earth is 43 people per sq KM. I want to know the average of all the countries please. Asked by Marisha - Sun Feb 10 17:02:01 2008 - - 1 Answers - 0 Comments A. ...wouldn't Google be a better place to figure that out? Answered by aeroplanejane - Sun Feb 10 17:06:16 2008 Why does most of eastern Russia have a low population density? +10pts? Q. Why does most of eastern Russia have a low population density? a. There are few rivers and other sources of fresh water in this region. b.Most of this region has a desert and semidesert biome. c. Most of the region is located within tundra and subarctic climate zones. d. Too many mountain ranges make it impossible for human settlement. thanks... Asked by party_gurl - Tue Nov 18 09:51:33 2008 - - 3 Answers - 0 Comments A. c.. for sure. There are a lot of rivers, some of them like Amazonka size. You cant see one shore from the other sometimes. Also eastern Russia is a Siberia. Neverending forest with very low winter temperatures. Answered by dima83 - Tue Nov 18 13:50:08 2008 What is India/Bangladesh/ other high-density countries doing about Population Control?
Q. Aren't India and other high-density population countries worried about their population size? If there is any shift in climate, rains, or environment that affects farming, the human starvation toll would be catastrophic. Asked by Jack X - Fri Feb 6 12:38:35 2009 - - 1 Answers - 0 Comments A. I'm from Bangladesh and all I can say is that our population control programme that started since early 1980s is not very affective here, but said to be better than India and Pakistan. Population growth in Bangladesh declined from 3 percent to 2.3 percent between 1961 and 1981. The government of Bangladesh once claimed that we have achieved below 2.0% (1.88%) population growth rate and the dictator President General Ershad bagged some prize from the UN, but later the decline was found not sustainable one. The fertility rate is now 3.1 children per woman, compared with 6.2 some fifty years ago (in early 1960s) when the then Pakistan started with the campaign of family planning and Bangladesh was East Pakistan where God fearing… [cont.] Answered by ~slsmhu - Sat Feb 7 00:08:49 2009 From Yahoo Answer Search: "Population density" |
