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Record W6949603192 · doi:10.5281/zenodo.16876385

Arcynopteryx dichroa

2025· article· en· W6949603192 on OpenAlexaboutno aff

Bibliographic record

VenueZenodo (CERN European Organization for Nuclear Research) · 2025
Typearticle
Languageen
FieldEnvironmental Science
TopicFreshwater macroinvertebrate diversity and ecology
Canadian institutionsnot available
Fundersnot available
KeywordsHolarcticEcoregionHabitatVoltinismDolichopodidae

Abstract

fetched live from OpenAlex

Arcynopteryx dichroa (McLachlan, 1872) Notes Arcrynopteryx dichroa is commonly known as the Holarctic Springfly (Stark et al. 2012). This is a circumpolar, northern Holarctic species that was previously referred to in North America as A. compacta (McLachlan, 1872) (Kondratieff 2004, Teslenko 2012, Numanović et al. 2024). In North America, the distribution of this species extends from the central Rocky Mountains north to a broad belt from Alaska east to Nunavut, with isolated records from Lake Superior in Michigan, New York, New Hampshire, and Maine (DeWalt et al. 2024). Stewart (1990) reported a univoltine life cycle for this species in Alaska. Larvae of A. dichroa typically inhabit rocky streams and rocky, wave-swept lake shorelines. This species, however, has not been collected in New York since August 1905 (Fig. 38) at 530 m asl (Fig. 39). This sole report is from Old Forge in Level IV Ecoregion Acid Sensitive Adirondacks (58 aa) (Fig. 40 a) under the old name Perlodes lineata (Smith, 1917) (Needham and Claassen 1925). The New York specimen has also been referred to as. A. minor Klapalek, 1912 (Hanson 1942). Further surveys targeting suitable high elevation habitats in the Adirondacks are needed to determine its status in the state.

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: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.013
Threshold uncertainty score0.042

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 studies0.0010.000
Scholarly communication0.0000.000
Open science0.0000.001
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0130.002

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 head0.015
GPT teacher head0.203
Teacher spread0.188 · 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

Citations0
Published2025
Admission routes1
Has abstractyes

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