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Record W6999877502

Ecological interactions of Harmonia axyridis and Aphis glycines in Ontario agroecosystems

2007· dissertation· en· W6999877502 on OpenAlexaboutno aff

Bibliographic record

VenueThe Atrium (University of Guelph) · 2007
Typedissertation
Languageen
FieldAgricultural and Biological Sciences
TopicInsect-Plant Interactions and Control
Canadian institutionsnot available
Fundersnot available
KeywordsHarmonia axyridisSoybean aphidPEST analysisIntegrated pest managementCoccinellidaeEcosystemOutbreakPeninsula
DOInot available

Abstract

fetched live from OpenAlex

The multicoloured Asian ladybeetle 'Harmonia axyridis' Pallas (Coleoptera: Coccinellidae) is an occasional pest of wine grapes in the Niagara Peninsula region of southern Ontario. Outbreaks of 'H. axyridis' appear to correlate with outbreaks of an introduced soybean pest, 'Aphis glycines' Matsumura (Hemiptera: Aphididae). This thesis examines the dynamics of these two species in Niagara area soybean fields, develops a model for predicting early season development events of ' A. glycines,' and examines the visual and olfactory cues associated with 'A. glycines' and its hosts employed by foracing adults of 'H. axyridis.' Interactions between the two species in hedgerow ecosystems in spring and autumn appear to be integral to understand the relationship of these two species and to predict economic infestations of both ' A. glycines' and 'H. axyridis.' Recommendations are made for the development of an integrated pest management program for ' H. axyridis.'

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 score0.156
Threshold uncertainty score0.313

Distilled classifier scores by category (both heads)

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

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 head0.015
GPT teacher head0.214
Teacher spread0.199 · 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
Published2007
Admission routes1
Has abstractyes

Explore more

Same venueThe Atrium (University of Guelph)→Same topicInsect-Plant Interactions and Control→French-language works237,207→