PPT-Population Density & Dispersion

Density Density describes the number of organisms in a defined area Can be found with the following formula D p N A or D N S in Nelson D p is density N is number of organisms . th. -Week 10. TOPIC. : . Population Dynamics. .  . OBJ . : . 3-5. DO NOW. : . . EXT. :. Oh DEER! . DUE DATE. : . Oct 14th. DW. : . 4.1 Application Notes. -----------------------------------------------------------------------------------------------------------------. Population Distribution. Population distribution explains . where people . live.. Why do some people prefer to live in region A compared to region B?. What factors are involved in people migrating (moving) from one place to another?. Agenda for . Monday Jan 30. th. . Populations notes. Population worksheet. Why study populations?. Learn how organisms change over time, problems in an environment, and relationships between . 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. SBI4U . Population Dynamics. What is a Population?. . Population. : a group consisting of members of the same species that live together in a certain area at the same . time. Populations live in a particular . Species distribution. Density . and size are useful measures for characterizing populations. Scientists gain additional insight into a species' biology and ecology from studying how individuals are spatially distributed. Dispersion or distribution patterns show the spatial relationship between members of a population within a habitat. Patterns are often characteristic of a particular species; they depend on local environmental conditions and the species' growth characteristics (as for plants) or behavior (as for animals).. and Applications . (Common Core Standard G-MG.2) Practice applying concepts of density with an area and volume modeling situation.. What is Density??. Density is a measure of how much matter is in a certain volume or area .. M. edia. MSc.Nooshin Bahar . Supervisor: Prof. Manfred Koch . Figure from Hornberger et al. (1998). Generalization of Darcy’s column. . . h/L = hydraulic . gradient. q = Q/A. Q is proportional. When we examine the population of the world we see that it is distributed unevenly- some places are more populated than others. Population Distribution- . The way people are spread across a given area. 3 characteristics of all populations. Density. The number of organisms of the same species per unit area (25 people per classroom). Dispersion. The pattern of population distribution. Ranges. Limited by biotic and abiotic factors. Population. ecology. Community. ecology. Ecosystem. ecology. Landscape. ecology. Global. ecology. Introduction to Ecology . Populations. Population ecology. Abundance. Dynamics . Density, dispersion, demographics, interrelationships with other populations. Course Objectives. Define the following ecological terms: Population, population density, community, population distribution, diversity, Limiting factors, resources, biotic potential (. r ), . carrying capacity . Nicole . Tunbridge. and. Kathleen Fitzpatrick. Turtle Tracks. Population ecology explores how biotic and abiotic factors influence density, distribution, size, and age structure of populations. For example, the number of loggerhead turtle hatchlings that survive their first journey to the ocean is affected by both biotic and abiotic factors. Month. Rainfall (mm). Dry . s. eason vegetation . t. ype = . l. ong grass & open woodland. Wet . s. eason vegetation . t. ype = short grass plains (productivity, nutrients). Synchronized birth pulse, .