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Crowding

H Burger1, H E Kaiser

  • 1Schoenbrunner Tiergarten (Vienna Zoo), Austria.

In Vivo (Athens, Greece)
|March 1, 1996
PubMed
Summary
This summary is machine-generated.

Crowding, or restricted environmental space, impacts animals, plants, and humans. This phenomenon can lead to stress, disease, and the formation of superorganisms or pathological conditions.

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Area of Science:

  • Environmental Science
  • Ecology
  • Animal Behavior

Background:

  • Crowding is defined as a state where numerous organisms, including humans, experience restricted environmental space.
  • This condition can arise from small initial populations and is observed across various species, including plants, bacteria, and animals.
  • Artificial examples include agricultural practices and laboratory settings.

Purpose of the Study:

  • To explore the multifaceted impacts of crowding across diverse biological systems.
  • To examine the progression of crowding from initial stress to complex outcomes like superorganisms and pathological conditions.
  • To identify environmental and social factors contributing to crowding.

Main Methods:

  • Observational studies across different species and environments.

Related Experiment Videos

  • Analysis of ecological data related to species introduction and population density.
  • Case studies examining human settlements, housing, and institutional settings.

    • Main Results:

    • Crowding can induce stress, leading to pathological conditions such as infections (e.g., tuberculosis) and tumors in animals, plants, and humans.
    • It can drive evolutionary or developmental pathways, resulting in the formation of superorganisms (e.g., social insects).
    • Environmental changes, like the introduction of invasive species, exemplify crowding effects, as seen with rodents and lagomorphs in Australia.

    Conclusions:

    • Crowding is a significant environmental stressor with profound biological and social consequences.
    • Understanding crowding dynamics is crucial for managing animal welfare in captive environments (zoos, labs) and addressing human health issues in dense populations (slums, urban areas).
    • The study highlights the universal nature of crowding effects, from microbial cultures to complex ecosystems and human societies.