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Related Concept Videos

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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...
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Updated: Jun 26, 2026

Predicting the Effectiveness of Population Replacement Strategy Using Mathematical Modeling
20:36

Predicting the Effectiveness of Population Replacement Strategy Using Mathematical Modeling

Published on: July 4, 2007

On population growth near protected areas.

Lucas N Joppa1, Scott R Loarie, Stuart L Pimm

  • 1Nicholas School of the Environment, Duke University, Durham, North Carolina, United States of America.

Plos One
|January 27, 2009
PubMed
Summary
This summary is machine-generated.

Human population growth near protected areas is not disproportionately higher than in other rural areas. This finding challenges previous research, suggesting no general pattern of increased settlement pressure on conservation sites.

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Area of Science:

  • Conservation Biology
  • Human Ecology
  • Demography

Background:

  • Protected areas are crucial for biodiversity conservation.
  • Human settlement near protected areas can impact conservation efforts.
  • Understanding population dynamics is key to effective conservation strategies.

Purpose of the Study:

  • To investigate population growth patterns around protected areas globally.
  • To assess whether protected areas experience disproportionate human population increases.
  • To reconcile conflicting findings in previous research on this topic.

Main Methods:

  • Analysis of decadal population data from 45 countries and 304 protected areas.
  • Comparison of population growth rates near protected areas with national rural averages.
  • Re-analysis of data from a prior study with conflicting conclusions.

Main Results:

  • No statistically significant evidence of higher population growth near protected areas compared to national rural averages.
  • Observed population increases near protected areas are likely due to broader regional expansion of settlements.
  • Identified methodological issues in a previous study that led to erroneous conclusions.

Conclusions:

  • There is no general pattern of disproportionate human population growth around protected areas.
  • Previous claims of increased population pressure are likely artifacts of data incompatibility.
  • Conservation planning should consider localized pressures but not assume a universal trend of increased settlement near all protected areas.