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Biogeographical Modeling of Alien Worlds.

David S Stevenson1, Rodrick Wallace2

  • 1Science Department, Carlton le Willows Academy, Nottingham, United Kingdom.

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|April 27, 2021
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Summary
This summary is machine-generated.

We quantify exoplanet biological potential by linking astrophysical and geological factors. This approach estimates species richness by analyzing habitable environments and geological evolution, aiding the search for extraterrestrial life.

Keywords:
Allopatric speciationContinental growthGeomorphologyNiche spaceSpecies richnessSuper-EarthSynchronous rotation

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Area of Science:

  • Astrobiology
  • Planetary Science
  • Biogeography

Background:

  • Terrestrial biodiversity is constrained by environmental factors, defining an organism's fundamental niche.
  • An organism's realized niche encompasses interactions within its fundamental niche.
  • Astrophysical and geological factors significantly influence an exoplanet's habitable environment and geographical space.

Purpose of the Study:

  • To partially quantify the biological potential of an exoplanet.
  • To integrate biogeographical analyses with planetary geological evolution.
  • To constrain the number of species an exoplanet's landscape can support.

Main Methods:

  • Employing biogeographical analyses within the context of planetary geological evolution.
  • Utilizing astrophysical constraints to define habitable environmental characteristics.
  • Applying species-area relationships to model species richness based on available geographical space.

Main Results:

  • Partial quantification of exoplanet biological potential by combining astrophysical and geological data.
  • Constraining habitable geographical space using species-area relationships and planetary geological models.
  • Identification of a correlation between geomorphological scale and speciation.

Conclusions:

  • The study provides a framework for partially quantifying exoplanet biological potential.
  • Geological evolution and astrophysical constraints are key factors in determining potential biodiversity.
  • Further research into the geomorphological scale-speciation correlation could enhance the assessment of alien species diversity.