PPT-Population:

Global Patterns and Trends Introduction to Global Studies XIDS 2301 Farmers protest Food riots httpwwwnytimescom20080418worldamericas18foodhtml The light blue line shows that between 2005 and 2007 food prices have increased by more than . Image from Wikimedia Commons. Global human population. United Nations . projections (2004) . (. red. , . orange. , . green. ). . U. S. Census Bureau modern (. blue. ) . & historical . (. black. ) . By: Taylor Thomason. Heather Caldwell. Intro. In this project we observed the effect the cheetah population had on the springbok population. . We discovered that through this the correlation between the two is positively moderate.. http://www.geographyalltheway.com/igcse_geography/population_settlement/population/jelly_baby_population.htm. You are going to complete a scatter graph on the computer or graph paper using the data and instructions provided.. and projections. For many years people have written about the “why’s” and “how’s” of population growth. Optimists have concentrated on how the people adapt to the demands of population. Pessimists write about the problems that population growth has caused or may cause. Population structure . in case-control studies. Population consists of underlying subpopulations.. Disease prevalence different between subpopulations.. Cases preferentially ascertained from specific subpopulations.. Image from Wikimedia Commons. Global human population. United Nations . projections (2004) . (. red. , . orange. , . green. ). . U. S. Census Bureau modern (. blue. ) . & historical . (. black. ) . Population ecologists are primarily interested in . understanding how biotic and abiotic factors . influence the density, distribution, size, and age structure of populations.. the overall vitality of a population of organisms.. What is population?. Group of individuals of the same species that live in the same area. Does population change?. Sea otters, kelp, and sea urchins. Kelp forests offer a habitat for sea otters. Sea urchins feed on kelp. Learning Objective:. To know how overtime the global population has increased and shown an exponential rate of world population growth. . http://www.poodwaddle.com/clocks/worldclock/. http://news.bbc.co.uk/player/nol/newsid_7260000/newsid_7262100/7262120.stm?bw=bb&mp=wm&asb=1&news=1&bbcws=1. Overpopulation: Proponents and Critics . Malthus Basics. Idea: late 1700’s. During this time (before the industrial revolution) he predicted that the growing population would eclipse the available food supply. . Environmental Science. 9.1 Studying Human Populations. The human population has grown . faster. . in the . 20th. . century than it has ever before.. This rapid growth has led to . environmental problems. Population pyramids are used by demographers as a tool for understanding the make-up of a given population, whether a city, country, region, or the world. . A Population Pyramid is a graph that . shows the age-sex distribution of a given population. An interbreeding group of the . same species. living in the same general area. may be distinguished by natural or . . arbitrary boundaries. Population Density vs Dispersion. the number of individuals per unit area or volume. Most . populations . live together in clumps or patches.. Populations can grow, shrink, or remain stable. Population Dynamics. Age Structure. – proportions of individuals at various ages. Population Density.