PPT-1 15 24 16% population 7.9

m Disproportionately important in certain markets Source TGI GB 2012 Q3 April 2011 March 2012 2 22 of activities holidays Source TGI GB 2012 Q3 April 2011 March 2012 of adults who took an activity holiday in the last 12 months Backpacking SkiingWinter sports Boat holiday . 1 Introduction 2 Demographic and other assumptions 3 Indicators from Spectrum Those born before 1950 are members of the first generation in history to wit ness such a doubling during their lifetime Stated otherwise more people have been added to the worlds population since 1950 than during the 4 million preceding years since Stephen J. Dinsmore. 1. and Douglas H. Johnson. 2. 1. Department of Natural Resource Ecology and Management, Iowa State University, Ames, IA. and. 2. USGS- Northern Prairie Wildlife Research Center, St. Paul, MN. 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. The population of agricultural holdings is comprised of . Household Holdings . and . Non-Household Holdings. Non-Household Holdings. – . Government Farms, Research Stations, etc.. Schools, Prisons, Other Government Institutions with Farms. In-build . mechanisms for adaptation. (or evolutionary mechanisms). Biology Stage 3. Text: Chapter 23. Human Biology Stage 3 . Text: Chapter 15. Key ideas. Population genetics. Observable facts. Natural selection. Population Characteristics. Density. - # of individuals per unit of . area. Determined by…. counts . sample size estimate . indirect indicators . mark-recapture. Dispersion. 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. 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. Introduction to linking demography, population growth and extinction due to climate warming. What is Population Ecology? . Goal is to understand . factors. and . processes. that govern . abundance. SW: discuss with their groups how estimating a population could be used in a real world situation.. Population Ecology. Measuring a population. Growth Curves. Biotic Potential vs. Environmental. Resistance.