nucleation

LIT-1219: Mechanisms of Maintenance of Species Diversity

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StatusUnavailable — filed 2026-10-18 from the exchange of 2026-10-17, not read. A lawful full text was sought on 2026-10-29 and not reached. OpenAlex reports it closed with the Annual Reviews DOI as its only location; Semantic Scholar reports no open copy; Europe PMC has no record. The Annual Reviews PDF returned a 403 challenge, and it is not open access. Searches for a copy on Chesson's pages found none: the University of Arizona experts page lists the citation only, and the old eebweb.arizona.edu faculty pages reset the connection, with no Wayback snapshot of a reprint. It stays Unavailable until a copy is supplied. Letten, Ke and Fukami (LIT-1237, read in full) restate its stabilizing and equalizing terms and the coexistence inequality ρ < f₂/f₁ < 1/ρ in Lotka–Volterra form. No NOTE is filed.
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Tagsecology
Cited as “grounds” byCLAIM-546 — Negative frequency dependence that keeps two types in coexistence does not make their interaction cooperative: in Hawk–Dove with cost C above value V each type increases when rare and they coexist at the interior equilibrium of V/C Hawks, with Hawks still taking the whole resource from Doves, and on the Black Queen account producers of a leaked good and the cells that use it without paying coexist at a frequency set by the community's need; so whether types persist together and whether they cooperate are separate questions, and a coexistence criterion answers only the first

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Chesson, P. (2000). Mechanisms of Maintenance of Species Diversity. Annual Review of Ecology and Systematics 31: 343–366. doi:10.1146/annurev.ecolsys.31.1.343.

Not read: no lawful full text was reached on 2026-10-29 (see the status note). The summary is drawn from the abstract. A reading should check it first.

Why this is here

A46 of the exchange, answering the owner’s U46 return to niche specialization, cited it as “A particularly useful source”, contrasting stabilizing niche differences with equalizing ones, with the caveat “We should not equate Chesson’s ecological fitness differences with endorsement weights”. Bears on CLAIM-279 and QUESTION-083.

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