Human population dynamics powerpoint. 3.1 human population dynamics notes 2019-03-03

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8.1

human population dynamics powerpoint

In a rich and developed country, the inhabitants may well maintain their health, so that the death rate is low. Uncontrol population growth can cause problems in the avaibility of resources needed by people. Working opportunities in the destination area are more abundant. Migration is influenced by the following factors : Difficult economic situations and low earnings in the home location. It has been predicted that the population over 60 will increase and that the working population will have to work harder to keep the elderly alive, unless there is something done about it. Physical development includes, the construction of buildings, houses, roads, bridges, and amusement parks. Pro-natalist policies are in favor of increasing the birth rate and anti-natalists policies attempt to limit the birth rate.

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Powerpoint files for Human Population Dynamics

human population dynamics powerpoint

Population policies are determined by government actions. Parents may be dependent on their children for support in their later years and this may create an incentive to have many children. It includes living species and ecosystems that use solar energy and photosynthesis, as well as non-living items, such as groundwater and the ozone layer. Deforestation This can result in habitat destruction, a reduction in soil fertility and poor soil structure leading to a decrease in biodiversity. The files are in Microsoft PowerPoint for Windows Version 4. Whether or not something has the status of natural capital, and the marketable value of that capital varies regionally and over time and is influenced by cultural, social, economic, environmental, technological and political factors. Efforts that are being done by the government to improve the welfare of Indonesians are as follow ;.

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8.1

human population dynamics powerpoint

Mortality The death rate or mortality is the number of deaths for every 1,000 people per year. Grazing At low grazing intensities the biodiversity of grassland is low because a few species of plants such as grasses are able to out-compete the others and dominate the ecosystem. Give examples to support your answer. Some analysts believe that birth rates will come down by themselves as economic welfare improves and that the population problem is therefore better solved through policies to stimulate economic growth. The population comes in as 583 million.

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Powerpoint files for Human Population Dynamics

human population dynamics powerpoint

Factors influencing birth rates include: population age-structure, women status, type of economy, wealth, religion, social pressure, educational status, availability of contraceptives, desire for children, and the need for governmental policies such as child benefits. Before the beginning of agriculture about 10,000 years ago, small groups of humans wandered across large areas, hunting and gathering just enough food to stay alive. A population describes a group of individuals of the same species occupying a specific area at a specific time. Acid rain has devastating consequences on biodiversity as many plants and animal species cannot survive these conditions. Exponential growth or geometric growth is when the population is growing, and there are no limiting factors slowing the growth. Kim Preshoff explains how using a visual tool called a population pyramid helps policymakers and social scientists make sense of the statistics, using three different countries' pyramids as examples.

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8.1

human population dynamics powerpoint

If there is immigration into the population, or emigration out of it, then the immigration rate and emigration rate are also of interest. In addition, it wil also increase environmental damage. People were encouraged to limit families to two children. PowerPoint Presentation: Uneven density and the spread of population can cause a development gap, both in physical and non-physical development. Many factors affect population growth. This is also difficult to predict changes for as there is too many factors.

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Powerpoint files for Human Population Dynamics

human population dynamics powerpoint

If you are using a Macintosh with only one mouse button, click on the filename, holding down the button for a long time. Non-physical development includes developments related to the improvement of the quality of living, including mental and spiritual. Urbanization , which is the movement of inhabitants from villages to cities. At very high grazing intensities the biodiversity decreases because only plants with adaptations to tolerate the effects of grazing are able to survive. There is an assumption that living in big cities is more interesting because of the avaibility of recreational facilities, amusement, and shopping centers. Educational facilities in the origin location are not sufficient.

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Big Idea 4: Population Ecology and Human Populations

human population dynamics powerpoint

Due to the animals at each level in a food chain eating large numbers of the organisms from the level below in the food chain, the concentration of pesticide in the bodies of organisms increases at higher levels of food chains. If the population grwth cannot be controlled, it is estimated that overpopulation will occur. Certain living organisms act as indicator species, and their presence or absence shows the level of pollution in the air or water. Examples include cork, uranium and lithium. National or regional change in population count migration whereas a global population change does not even consider migration. PowerPoint Presentation: The densest region in Indonesia is in Java island which is approximately 127,499 square kilometers in area and had a population of approximately 121. Remigration , which is the movement of inhabitants back to their home country.

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ESS Topic 8.1: Human Populations Dynamics

human population dynamics powerpoint

Demography is the study of the statistical characteristics of human populations, e. Population pyramids are structures which show any measurable characteristic of the population; like sex, age, language, religion and occupation. As the grazing intensity increases the biodiversity increases as the dominant plant species are kept in check by grazers and the weaker competitors are therefore also able to grow. China instilled an anti natalist policy to help combat population explosion. Pesticides Pesticides can have adverse effects on the environment if they are not biodegradable and they can accumulate in the bodies of organisms over time. PowerPoint Presentation: Migration can be placed into five categories : Emigration , which is the movement of the inhabitants leaving a country to settle in another country. This can result in the toxicity of the pollutant reaching fatal levels in the organisms at the top of the food chain.

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Big Idea 4: Population Ecology and Human Populations

human population dynamics powerpoint

Philippines have passed a Reproductive Health Bill. Policies directed towards the education of women, enabling women to have greater personal and economic independence, may be the most effective method for reducing population pressure. If renewable natural capital is used beyond its natural income this use becomes unsustainable. A population dynamics showing an increasing number of inhabitants is called population growth. Popupation of Inhabitants The change in the population in an area over a period of time is called population dynamics.

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