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Record W4382047954 · doi:10.21203/rs.3.rs-3000655/v1

Great Lakes coastal wetland biodiversity increases following invasive Phragmites australis removal

2023· preprint· en· W4382047954 on OpenAlexafffund
Meghan Ward, Tarra Degazio, Jeff Bowman

Bibliographic record

VenueResearch Square · 2023
Typepreprint
Languageen
FieldEnvironmental Science
TopicCoastal wetland ecosystem dynamics
Canadian institutionsMinistry of Natural Resources and ForestryTrent UniversityParks Canada
FundersNatural Sciences and Engineering Research Council of CanadaTrent UniversityParks CanadaOntario Ministry of Natural Resources and ForestryMinistry of Natural Resources
KeywordsPhragmitesWetlandBiodiversityEnvironmental scienceGeographyInvasive speciesEcologyFisheryBiology

Abstract

fetched live from OpenAlex

Abstract Invasive Phragmites australis subsp. australis is invading Great Lakes coastal wetlands and forming monocultures at an alarming rate. P. australis is thought to reduce wetland biodiversity both directly and indirectly through the acquisition of resources and alteration of habitat. Restoration efforts to manually remove P. australis at Point Pelee National Park began in 2020 and here we assess the effect of P. australis removal on vegetation and emerging aquatic invertebrate communities. We compared emergent vegetation and emerging aquatic invertebrate communities between a P. australis-invaded wetland, a P. australis-treated wetland, and a non-invaded wetland. We found that two-years post-restoration, vegetation species richness and the prevalence of non-Phragmites vegetation were both higher in the treated and non-invaded wetlands than the invaded wetland. The vegetation community of the treated wetland resembled the vegetation community of the non-invaded wetland, and the vegetation community of the invaded wetland was very different from both the treated and non-invaded wetlands. We also found that invertebrate total abundance (measured as density/m2) was highest in the treated and non-invaded wetlands, and that invertebrate abundance differed among all wetland types. Invertebrate community composition also differed among all wetland types. Manual removal of P. australis resulted in significant changes in both the emergent vegetation and emerging invertebrate community composition two-years following restoration.

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 score0.990
Threshold uncertainty score0.020

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 studies0.0000.000
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 head0.063
GPT teacher head0.320
Teacher spread0.257 · 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
Published2023
Admission routes2
Has abstractyes

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