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Demography and Ecology as a Field of Study

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Demography and Ecology as a Field of Study. Demography is the study of the size, territorial distribution,, and composition ... Study of social change via ... – PowerPoint PPT presentation

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Title: Demography and Ecology as a Field of Study


1
Demography and Ecology as a Field of Study
  • Demography is the study of the size, territorial
    distribution,, and composition of population,
    changes therein, and components of such changes
    as mortality, natality, territorial movement, and
    social mobility (Hauser and Duncan 1959).
  • Distinction between (formal) demography and
    population studies.
  • Economic demography, social demography,
    population geography
  • Scholarly communities and shop tradition, PAA
    meetings
  • Inductive empirical approach vs. hypothesis
    testing
  • Porous boundaries, Problem and interdisciplinary
    orientation
  • Health science with NIH support for research and
    training

2
Concept of Population a la Norman Ryder
  • Individual entries and exits, but aggregate
    population has emergent properties (age
    structure)
  • Individual time (age) and temporal time
    (periods), with cohorts as intersection lexis
    diagram
  • Study of social change via cohort succession
  • Risk of an event in population Concept of
    person-years
  • Interdependencies of age, period, and cohort
    gives rise to study of formal demography (people,
    cities, organizations..)
  • Population Balancing Equation
  • P2 P1 B D IM OM

3
LEXIS DIAGRAM
Age
4
3
2
2
1
0
1 2 3 4 5 6 7 8 9 10 TIME
Examples of How population structure affects
social change fertility, mortality, crime,
voting, consumption
4
Additional Readings
  • Preston on The Contours of Demography
  • Preston on Children and the Elderly
  • Human Ecology as a Companion Field
  • Urban Spatial Structure
  • Amos Hawley on Community Structure
  • Population, Organization, Environment, and
    Technology POET
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