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Record W2752962858

Community composition and Biogeography of northern Canadian Ephemeroptera, Plecoptera and Trichoptera

2014· dissertation· en· W2752962858 on OpenAlexfundaboutno aff
Ruben D. Cordero

Bibliographic record

VenueTSpace · 2014
Typedissertation
Languageen
FieldEnvironmental Science
TopicFreshwater macroinvertebrate diversity and ecology
Canadian institutionsnot available
FundersNatural Sciences and Engineering Research Council of Canada
KeywordsBiogeographyEcologyCommunity structurePleistoceneBayGeographyPopulationEcosystemPrecipitationBiologyPhysical geographyArchaeologyDemography
DOInot available

Abstract

fetched live from OpenAlex

Climate change has a disproportionately effect on northern ecosystems. To measure this impact we need to understand the structure of northern communities and the influence of current and historical climate events. Insect of the orders Ephemeroptera, Plecoptera and Trichoptera (EPTs) are excellent subjects for study because they are widespread and good bioindicators. The objectives of this study are: (1) Determine patterns of distribution and community composition of northern EPTs. (2) Understand the role of historical events (i.e., Pleistocene glaciations). We found that northern EPT communities are influenced by temperature and precipitation. Also, community composition and population structure of EPT exhibit a similar geographical pattern, with differences on either side of Hudson Bay, suggesting the influence of glaciations in shaping communities of EPTs in northern Canada. The COI barcode approach provided a reliable means for identifying specimens to produce the first wide-scale study of community structure and biogeography of northern EPTs.

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 score0.077
Threshold uncertainty score0.154

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0010.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0020.000

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 head0.008
GPT teacher head0.218
Teacher spread0.210 · 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
Published2014
Admission routes2
Has abstractyes

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