We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published bySofia Gunn
Modified over 3 years ago
Ecology 2 The end is near
What role does a female play in the population????
A life table is an age-specific summary of the survival pattern of a population.
The best way to construct a life table is to follow the fate of a cohort, a group of individuals of the same age, from birth until all are dead.
As an example of a Type I curve, humans in developed countries experience high survival rates until old age.
At the opposite extreme are Type III curves for organisms such as oysters, which experience very high mortality as larvae but decreased mortality later in life.
Type II survivorship curves are intermediate between the other two types and result when a constant proportion of individuals die at each age
Chapter 10 Population Dynamics. Estimating Patterns of Survival Three main ways of estimating patterns of survival within a population: –Identify a large.
Dynamic biological processes influence population density, dispersion, and demographics Chapter 53, Section 1.
3 4 POPULATION. 2 1 POPULATIONS: Distribution 5 POPULATIONS: Abundance (including Density)
9 Population Growth and Regulation. Learning Objectives Be able to: Define x, N(x), S(x), F(x) and l(x) Calculate S(x) and l(x) Construct a life table.
Announcements Wednesday Lab: Turn in Animal Behavior Lab to the black tray. Pick up Chapter 51 posters on Lab Table 2. Any remaining posters will be.
FW 491 – Online Ecological Module By: Jessica Caton.
55.2 How Do Ecologists Study Population Dynamics? To understand population growth, ecologists must measure population processes as well as population traits.
Slide 1 of 24 Copyright Pearson Prentice Hall 5-3 Human Population Growth.
CHAPTER 52 POPULATION ECOLOGY Copyright © 2002 Pearson Education, Inc., publishing as Benjamin Cummings Section A: Characteristics of Populations 1.Two.
A population is a group of individuals of a single species that occupy the same general area. Two important characteristics of any population are density.
Uniform Clumped patterns May result from direct interactions between individuals in the population territoriality.
Population Ecology. What is a Population? An interbreeding group of the same species living in the same general area may be distinguished by natural or.
Cemetery Demography Lab October Table 3: Data Calculations for Survivorship Curve Age Class Years # Deaths in Class (d) # Surviving from Birth (I)
Ch 14: Population Growth + Regulation dN/dt = rN dN/dt = rN(K-N)/K For this lecture, print this pointpoint and bring pg. 77 from manual.
Survivorship Curves Application: The Cemetery Lab St. James Cemetery, Toronto ON.
Populations: Type III Survivorship Curve L x = Proportion of Original Population Alive at Age X (Graphically, converted to Common Logarithm)
Population Ecology. Population Demographics Demographics are the various characteristics of a population including, Population Size, Age Structure, Density,
1 Population Ecology. 2 Environmental Variation Key elements of an organism’s environment include: – temperature – water – sunlight – Soil – Classical.
The Human Population Studying Human Population Chapter Nine Section One.
Populations and Growth. Population Dispersion Survivorship Curves Type I – Few offspring – Low infant mortality – Parental care of young – Most survive.
Outline Intro to Population Ecology Estimating Patterns of Survival Survivorship Curves Age Distribution Rates of Population Change –Overlapping Generations.
Population Ecology. Dynamics of species’ populations Interaction of populations with environment Population Ecology.
Readings Table 10.1, p. 246 Table 10.2, p. 248 Life Histories, pp
10-4 POPULATION PATTERNS. 1. POPULATION PROPERTIES Size (often hard to measure) Density– amount of population per unit of area (population crowding) #
Population Ecology Size – represented by N Density – number of individuals per area – 100 buffalo/km 2 Dispersion – how individuals are distributed.
Population Dynamics Review. Survivorship curve: Survivorship curves keep track of the fate of any given birth cohort. They show the percent still.
Population Ecology. Population Def. a group of individuals of a __________ species living in the same area Characteristics of a popl’n 1)Size 2)Density.
Chapter 19-1 Populations. Objectives Explain the difference between population size, density, and dispersion Describe the three main patterns of population.
10 Population Growth and Regulation. Chapter 10 Population Growth and Regulation CONCEPT 10.1 Life tables show how survival and reproductive rates vary.
Measuring and Modeling Population Change SBI4U. Demography The statistical study of the processes that change the size and density of a population through.
Chapter 52 Population Ecology. Population ecology - The study of population’s and their environment. Population – a group of individuals of a single species.
Population Ecology Part 2 Discussion population ecosystem community biosphere organism.
1 Population Ecology. 2 Environmental Variation Key elements of an organism’s environment include: Key elements of an organism’s environment include:
Population Ecology. What is a Population? Population - A group of individuals of the same species that live together and interbreed Populations: o Share.
POPULATION ECOLOGY Tabitha Walton and Heath Edwards.
Laboratory 3: Age Structure and Survivorship. Age Structure and Survivorship Populations consist of multiple cohorts which vary greatly in age Populations.
Population Ecology Chapter 36. Population Group of individuals of a single species that occupy the same general area. Population density = number of individuals.
What is the density of a population? The number of individuals per unit area Dispersion is how they spread out in that area What are the three.
Chapter 52 Population Ecology. Population ecology is the study of the fluctuations in population size and composition and their ecological causes A population.
Population Ecology population ecosystem community biosphere organism.
Population Density, Dispersion, Demographics Chapter 36.1 – 36.3.
Life History Patterns. Development At different stages of development, species require different resources Also, they can be more at risk during different.
UNIT II Population Dynamics. Characteristics of Populations Three important characteristics of a population are: Its geographic distribution (range)
Population Ecology Population ecology is the study of populations in relation to environment, including environmental influences on density and distribution,
Chapter 53- AP Biology. The study of populations in relation to their environment Explores how biotic and abiotic factors influence the density, distribution,
Population Ecology ; 36.6 Pgs Population Growth Rates Objective: I can use mathematical formulas and graphs to describe how populations.
Chapter 52: Population Ecology. Population Ecology Study of the factors that affect population size and composition. Population Individuals of a single.
Population Dynamics Fundamental Equation: N (t+1) = N (t) + B – D + I – E N (t+1) - N (t) = B – D + I – E = N = B – D + I – E I E D B.
Population Ecology u Study of the factors that affect population size and composition.
© 2017 SlidePlayer.com Inc. All rights reserved.