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Record W2784429134 · doi:10.22215/etd/2017-12169

A test of the hypothesis that the spatial scale of effect of the landscape context on an ecological response increases with increasing time scale over which the response is regulated

2017· dissertation· en· W2784429134 on OpenAlexafffund
Andrew D. Moraga

Bibliographic record

Venuenot available
Typedissertation
Languageen
FieldEnvironmental Science
TopicEcology and Vegetation Dynamics Studies
Canadian institutionsCarleton University
FundersNatural Sciences and Engineering Research Council of Canada
KeywordsScale (ratio)Spatial ecologyContext (archaeology)Abundance (ecology)EcologyTemporal scalesFecundityEnvironmental scienceGeographyBiologyCartographyDemography

Abstract

fetched live from OpenAlex

To detect an effect of landscape context on an ecological response one must measure the landscape variable at the appropriate spatial extent around the response, i.e. at its 'scale of effect'. However, it is not clear what determines this scale or if we can predict it a priori. One hypothesis is that the scale of effect increases with the temporal scale regulating the response. We tested this, comparing scales of effect of road density and forest amount on wood frog fecundity, abundance, and occurrence estimated from egg mass surveys of 34 ponds. We predicted the following order for scales of effect: fecundity < abundance < occurrence. Scales of effect were different for the three responses, but did not vary in the predicted order. This suggests that scales of effect cannot be predicted from the temporal scale regulating different responses and should thus be estimated empirically, rather than 'guestimated' a priori.

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)0.005
metaresearch head score (Gemma)0.034
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 score0.020
Threshold uncertainty score0.067

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0050.034
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.002
Bibliometrics0.0010.001
Science and technology studies0.0010.003
Scholarly communication0.0020.003
Open science0.0010.002
Research integrity0.0020.002
Insufficient payload (model declined to judge)0.0200.001

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 head0.227
Teacher spread0.221 · 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
Published2017
Admission routes2
Has abstractyes

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