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Crow’s Path
Crow’s Path

01.03 – Commensalism + Amensalism

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The Single Acorn
The Single Acorn
01.03 - Commensalism + Amensalism
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Episode description:

In this series on symbiosis, we’re taking a deep dive into the many different types of relationships organisms have evolved into, the good, the bad, the benign. This episode highlights relationships in which one partner’s a total dud: behold the neutral symbiont. The relationships can be the result of complete and totally unbalanced competition where the other symbiont is harmed (amensalism) or when one species exploits and is benefitted by the resources offered up by the other at no cost to the latter (commensalism: think dung beetles). No species is entirely isolated from the impact of another organism in its environment so we’ll talk about that gray space between commensalism and mutualism, amensalism and exploitation. Welcome to the Single Acorn.

Produced by: Crow’s Path
Hosted by:
Professor Eweagey (aka Teage O’Connor), Glenn Etter, Dr. Christine Fleener
Supported by: Our patrons @ patreon.com/CrowsPath
For more natural history:

Theme music by: Jake Weiss
Logo design by: Caitlin LaDulce
Ads by: Sara Siegel

WORKS CITED
  • 75,000 snakes are about to wake up in Manitoba (link)
  • Within-lodge interactions between two ecosystem engineers, beavers (Castor canadensis) and muskrats (Ondatra zibethicus) (link)
  • Temperatures within a Beaver Lodge in Winter (link)
  • Earthworm Invasion as the Driving Force Behind Plant Invasion and Community Change in Northeastern North American Forests (link)
  • Winter conditions in eastern hemlock and mixed-hardwood deer wintering areas of Vermont (link)
  • Why dogs eat poop (link)
  • Evaluation of the allelopathic activity of five Oxalidaceae cover plants and the demonstration of potent weed suppression by Oxalis species (link)
  • Effects of juglone on growth, photosynthesis, and respiration (link)
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