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In this Wormbook chapter, Kiontke says that some Caenorhabditis species live "pseudoparasitically" on warm-blooded animals. What does it mean? What is a pseudoparasite? I understand a parasite to be in association with a host where the relationship is beneficial for the parasite and harmful for the host. How is pseudoparasitism defined?

I have found several definition:

In conclusion, I would say that some Caenorhabditis are pseudoparasitic of warm-blooded animals, which means they are commensal and cause no harm. However, I don't see the point of saying they are pseudoparasitic. I would rather just say commensal.

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  • $\begingroup$ It might just be my opinion, but I think part of the issue approximates something like: The more you know about a subject, the pickier you become about how you would describe something. I remember this being true in undergrad calculus, when the professor would lay out a concept, but also hint that it's not the full picture because of more advanced concepts that they knew, and we couldn't know unless we pursued a PhD in Mathematics. $\endgroup$ – CKM Mar 9 at 17:46
  • $\begingroup$ Why don’t you Email the authors themselves? When I contacted Walter Sudhaus many years ago he was very helpful. $\endgroup$ – mdperry Mar 10 at 2:51

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