PDF-Population

51530refugeesOrigin of refugeesSUDANSite openedAug 2011Site report2018YidaSOUTH SUDANPartnersKey IndicatorsCRUDE MORTALITY RATEU5 MORTALITY RATEMATERNAL MORTALITYSKILLED BIRTHATTENDANCE00Deaths1000 r. 03 Population over 60 2012 919 Life expectancy at birth 2012 Total Male Female 79 Both sexes 76 Male 83 Female Neonatal mortality rate per 1000 live births 2012 11 717 Both sexes Under5 mortality rate per 1000 live births 2012 18 1324 Both sexes Mat 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. 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.. Population Characteristics. Density. - # of individuals per unit of . area. Determined by…. counts . sample size estimate . indirect indicators . mark-recapture. Dispersion. 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. Population Receiving Analog Service2081324 Population Receiving Digital Service2434487 Analog Population Losing Service45909 gital Service399072 Gain353163 BentonCrookDeschutesJeffersonLaneLincolnLinn 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. . Distribution. Spread of . population; pattern of human settlement. Aka dispersed distribution. Relates to density. Humans live only in certain areas (that they can get food, water, and shelter) and there is a pattern to it.