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Record W2072765021 · doi:10.1675/063.032.0108

Response of a Least Bittern<i>(Ixobrychus exilis)</i>Population to Interannual Water Level Fluctuations

2009· article· en· W2072765021 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.
fundA Canadian funder is recorded on the work.
aboutThe title or abstract carries a Canadian signal from the geographic lexicon.

Bibliographic record

VenueWaterbirds · 2009
Typearticle
Languageen
FieldEnvironmental Science
TopicFish Ecology and Management Studies
Canadian institutionsEnvironment and Climate Change Canada
FundersGovernment of Canada
KeywordsHabitatThreatened speciesAbundance (ecology)Water levelWetlandMarshEcologyPopulationGeographySpring (device)Environmental scienceFisheryBiologyEnvironmental healthMedicine

Abstract

fetched live from OpenAlex

The Least Bittern (Ixobrychus exilis) is a threatened species in Canada under the Species at Risk Act and breeds in manmade impoundments on Department of National Defence land in Nicolet/Baie-du-Febvre, Québec, a designated Migratory Bird Sanctuary. We conducted Least Bittern call-broadcast surveys in three adjacent basins in these impoundments from 2004 to 2006. Least Bittern abundance greatly fluctuated between these years with a maximum of 37 individuals in 2004, 16 in 2005, and increasing to 32 individuals in 2006, translating into 38, 18 and 31 estimated breeding pairs. A breach in a dyke occurred on the larger basin in the fall of 2004 where most Least Bitterns were detected, which decreased the water level of the marsh and altered the habitat structure the following spring. The dyke was repaired in the fall of 2005 followed by a significant increase in the water level. The fluctuating Least Bittern abundance observed during these years suggests a rapid response of the local population to interannual changes in water level and habitat structure. Water-level management may be necessary to ensure long-term ecological integrity of artificial wetlands but management activities should be conducted outside the breeding season to ensure that the Least Bittern's reproductive needs are fulfilled.

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.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesInsufficient payload (model declined to judge)
Consensus categoriesInsufficient payload (model declined to judge)
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.620
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

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)0.0010.001

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 head0.015
GPT teacher head0.244
Teacher spread0.230 · 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