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Genetic diversity of copepod, Limnocalanus macrurus, from Russian Arctic seas

2019· article· en· W4386717741 on OpenAlexaboutno aff
Н. В. Гордеева, А. В. Дриц, М. В. Флинт

Bibliographic record

VenueОкеанология · 2019
Typearticle
Languageen
FieldEnvironmental Science
TopicIsotope Analysis in Ecology
Canadian institutionsnot available
Fundersnot available
KeywordsRefugium (fishkeeping)ArcticCopepodBiologyGlacial periodGenetic diversityThe arcticEcologyPleistoceneGeographyZoologyOceanographyPopulationPaleontologyCrustaceanGeology

Abstract

fetched live from OpenAlex

The diversity, phylogenetic relationship and demographic history in glacial relict copepod, Limnocalanus macrurus from estuaries of large Siberian Arctic rivers Ob, Khatanga, Lena, Indigirka and Kolyma were studied using of mitochondrial cytochrome-oxidase c gene (CO I mtDNA). It was shown, that Siberian populations of Limnocalanus macrurus together with ones from Canadian Arctic and the Baltic Sea belong to the single Palearctic phylogenetic lineage, which probably survived in one refugium during the Last Glacial Maximum and then rapidly expand within the Arctic about 21 0007500 years ago. The presence of common haplotypes in L. macrurus from three Arctic seas and lack of differences in haplotypic frequencies may be caused recent origin of populations or present day genetic exchange between them.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.016
Threshold uncertainty score0.032

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.006
GPT teacher head0.187
Teacher spread0.182 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations2
Published2019
Admission routes1
Has abstractyes

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