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Record W4243354683 · doi:10.22215/etd/2018-12960

A Small-Scale Response of Urban Bat Activity to Tree Cover

2018· dissertation· en· W4243354683 on OpenAlexafffundabout
Lauren Moretto

Bibliographic record

Venuenot available
Typedissertation
Languageen
FieldAgricultural and Biological Sciences
TopicBat Biology and Ecology Studies
Canadian institutionsCarleton University
FundersNatural Sciences and Engineering Research Council of CanadaEnvironment and Climate Change CanadaUniversity of TorontoCanadian Wildlife Federation
KeywordsGeographyScale (ratio)Cover (algebra)Tree (set theory)HabitatSampling (signal processing)EcologyForestryPhysical geographyCartographyBiologyMathematicsComputer scienceEngineering

Abstract

fetched live from OpenAlex

Bats in urban areas depend on trees, and bat activity increases with tree cover.To effectively manage bat habitat in cities, it is important to know the distance to which tree cover most strongly influences bats (i.e., the 'scale of effect').The aim of this study was to estimate the scale of effect of tree cover on bats in Toronto, Canada.I measured bat activity at 52 sampling sites across the city.I then examined the relationships between bat activity and percent tree cover measured within each of 19 landscape scales, 0.025 -3.5km in radius, surrounding each sampling site.My results suggest that adding or removing urban trees influences bats up to 200m away.Urban tree management decisions should consider the impacts to bats beyond the site of management and within the surrounding landscape of a 200m-radius scale.I would like to thank my co-supervisors, Lenore Fahrig, Charles M. Francis, and Adam C. Smith,

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 score0.197
Threshold uncertainty score0.392

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.001
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 head0.026
GPT teacher head0.242
Teacher spread0.216 · 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
Published2018
Admission routes3
Has abstractyes

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