Related Experiment Video
Updated: Jul 11, 2026

20:36
Predicting the Effectiveness of Population Replacement Strategy Using Mathematical Modeling
Published on: July 4, 2007
Recent urban and population change in Poland
Geoforum; Journal of Physical, Human, and Regional Geosciences
|January 1, 1990
Summary
Poland
Area of Science:
- Demography
- Urban Studies
- Sociology
Background:
- Recent shifts in Polish population dynamics.
- Changes in spatial mobility and urbanization patterns.
Purpose of the Study:
- Document recent urban and population trends in Poland.
- Analyze changes in spatial mobility and metropolitan area dominance.
Main Methods:
- Analysis of spatial mobility data.
- Examination of interregional population deconcentration.
- Assessment of metropolitan core-ring dynamics.
Main Results:
- Observed sharp decrease in population spatial mobility.
- Transition from population concentration to deconcentration at interregional scale.
- Weakening dominance of metropolitan core areas over their rings.
Conclusions:
- Internal migration rates are projected to rise in the 1990s.
- The large cohorts born in the 1970s entering the labor force are a key factor.
- Continued shifts in urban and population distribution are anticipated.
Keywords:
Demographic FactorsDeveloped CountriesEastern EuropeEuropeGeographic FactorsMigrationMigration, InternalPolandPopulationPopulation DynamicsSpatial DistributionUrban Spatial DistributionUrbanizationMore Related Videos
08:32Building Up Skin Models for Numerous Applications - from Two-Dimensional (2D) Monoculture to Three-Dimensional (3D) Multiculture
Published on: October 20, 2023
10:17Cities As Interfaces of Zoonotic Hazard Emergence: Development of the New York City Tick and Wildlife Urban Surveillance System
Published on: March 10, 2026
Related Concept Videos
What are Populations and Communities?
Populations are groups of individuals of the same species that inhabit a shared environment. Communities include multiple co-existing, interacting populations of different species. Metapopulations span multiple populations of the same species that occupy different areas. Metapopulations interact through immigration and emigration, providing genetic diversity that lends resilience to harsh environments. Population size and density can be estimated using quadrat and mark and recapture...
Population Growth
Population size is dynamic, increasing with birth rates and immigration, and decreasing with death rates and emigration. In ideal conditions with unlimited resources, populations can increase exponentially, which plots as a J-shaped growth rate curve of population size against time. This type of curve is characteristic of newly-introduced invasive species, or populations that have suffered catastrophic declines and are rebounding.However, realistic environmental conditions limit the number of...
What is Population Genetics?
A population is composed of members of the same species that simultaneously live and interact in the same area. When individuals in a population breed, they pass down their genes to their offspring. Many of these genes are polymorphic, meaning that they occur in multiple variants. Such variations of a gene are referred to as alleles. The collective set of all the alleles within a population is known as the gene pool.While some alleles of a given gene might be observed commonly, other variants...
Conservation of Small Populations
Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less likely to...
Conservation of Declining Populations
Conservation of declining population focuses on ways of detecting, diagnosing, and halting a population decline. The approach uses methods to prevent populations from going extinct.
Analysis of Population Pharmacokinetic Data
Analysis of population pharmacokinetic data involves studying the behavior of drugs within diverse populations to understand their pharmacokinetic parameters. Traditional pharmacokinetic methods typically involve collecting samples from a few individuals and estimating these parameters. While these methods are commonly used, they have limitations in capturing the variability in drug response among individuals or heterogeneous populations. Population pharmacokinetics is employed to address these...