MétaCan
Menu
Back to cohort
Record W3183325777

Effect of pH on Plant Diversity in Metro Vancouver

2020· article· en· W3183325777 on OpenAlexaboutno aff
Moses R. Choi

Bibliographic record

VenueExpedition · 2020
Typearticle
Languageen
FieldAgricultural and Biological Sciences
TopicLegume Nitrogen Fixing Symbiosis
Canadian institutionsnot available
Fundersnot available
KeywordsPlant speciesSoil pHPlant diversitySpecies diversityPositive correlationCorrelation coefficientPlate countPlant communityEcologyBotanyEnvironmental scienceSoil waterBiologyBacteriaSpecies richnessMathematicsStatistics
DOInot available

Abstract

fetched live from OpenAlex

Plant species are known to be affected by soil bacteria (Chu et al.). The pH of the soil, which is greatly affected by nearby water sources (Khatri et al.), influences these bacterial species (Chu et al.). This relationship between plant diversity and the pH of local water sources was investigated in the Metro Vancouver region. Various bodies of water in this region were randomly selected and plant species count and pH were measured in streams connected to the bodies of water. A Pearson’s correlation coefficient (R = -0.066) was used to see the strength of the correlation between pH and plant species count overall. There was no significant correlation (p-value: 0.8385 with n = 12) between the two variables. There was also variation in the plant species present and pH of nearby water streams in each location which indicates others factors the influence plant diversity. Interplant interactions are a potential source of the observed variation in plant species count between observations. Furthermore, pH values outside the optimal zone (pH = 7-8) were not observed and therefore more extreme pH values may have a more significant effect (Chen et al.).

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)0.001
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 score0.435
Threshold uncertainty score0.875

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0010.000
Scholarly communication0.0010.000
Open science0.0000.001
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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 head0.019
GPT teacher head0.210
Teacher spread0.191 · 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
Published2020
Admission routes1
Has abstractyes

Explore more

Same venueExpeditionSame topicLegume Nitrogen Fixing SymbiosisFrench-language works237,207