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Life in the allobiosphere.

J S Edwards1

  • 1Department of Zoology, NJ-15, University of Washington, Seattle, WA 98195, USA.

Trends in Ecology & Evolution
|January 14, 2011
PubMed
Summary
This summary is machine-generated.

Life in extreme environments, termed the allobiosphere, relies on imported nutrients. Studying deep oceans and volcanic islands reveals the diverse strategies organisms use to survive where photosynthesis is impossible.

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Area of Science:

  • Ecology
  • Extreme Environment Biology

Background:

  • G. Evelyn Hutchinson introduced the concept of the allobiosphere for environments lacking photosynthesis.
  • Life in these regions depends on external nutrient sources.
  • Understanding the allobiosphere expands ecological perspectives.

Purpose of the Study:

  • To define and explore the concept of the allobiosphere.
  • To juxtapose two extreme allobiospheric environments: deep oceans and volcanic islands.

Main Methods:

  • Review of recent and ongoing studies on ocean depths.
  • Review of recent and ongoing studies on volcanic islands.
  • Comparative analysis of these two distinct environments.

Main Results:

  • Deep ocean and volcanic islands represent contrasting allobiospheric ecosystems.
  • Both environments present unique challenges and survival strategies for their inhabitants.
  • These studies are refining the understanding of the allobiosphere.

Conclusions:

  • The allobiosphere encompasses diverse ecosystems with life sustained by imported materials.
  • Studying extreme environments like the deep sea and volcanic islands provides critical insights into life's adaptability.
  • Juxtaposing these extremes offers a clearer picture of the allobiosphere's scope and significance.