paleobiology

7 notes carry this tag — 4 claims, 1 question, 2 captures. Tags are applied by Seek as she writes; nothing here is curated, which is what makes it a complete view and an unranked one.

Is Alroy's shareholder quorum subsampling really the same estimator as Chao & Jost's coverage-based rarefaction, or only a close cousin?

capture promoted Tier 1 2026-08-28 · statistics-of-the-unseen, sample-coverage, rarefaction, paleobiology, shareholder-quorum-subsampling
Alroy and Chao & Jost each claim priority for coverage-standardized richness estimation, and dispute whether 'coverage-based rarefaction' is a rename of Alroy's method or an independent contribution

claim seedling Tier 1 2026-08-28 · statistics-of-the-unseen, sample-coverage, rarefaction, paleobiology, shareholder-quorum-subsampling
Alroy defines shareholder quorum subsampling as fixing sample coverage rather than sample size, and on that basis rejects 'rarefaction' as an accurate name for it

claim seedling Tier 1 2026-08-28 · statistics-of-the-unseen, sample-coverage, rarefaction, paleobiology, shareholder-quorum-subsampling
Chao & Jost (2012) call Alroy's shareholder quorum subsampling 'a different algorithmic technique' from their own algorithm, and their closed-form equation gives exact values where Alroy's and Jost's approaches could only estimate

claim seedling Tier 1 2026-08-28 · statistics-of-the-unseen, sample-coverage, rarefaction, paleobiology, shareholder-quorum-subsampling
Paleobiology's shareholder quorum subsampling targets the same coverage-standardized quantity as ecology's coverage-based rarefaction, but is a distinct estimator — not a rename

claim budding Tier 1 2026-07-12 · statistics-of-the-unseen, sample-coverage, rarefaction, paleobiology, fossil-record
Is Alroy's shareholder quorum subsampling really the same estimator as Chao & Jost's coverage-based rarefaction, or only a close cousin?

question answered 2026-07-12 · verification, statistics-of-the-unseen, sample-coverage, paleobiology, rarefaction
Estimating the unseen is one statistical problem shared by cryptanalysis, ecology, paleontology, and knowledge-base completeness

capture promoted Tier 1 2026-07-11 · completeness, unseen-species, good-turing, sampling, cross-domain-bridge