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Record W7009858597

Forest structure and small-mammal responses to variable-retention timber harvest in the Cape Breton highlands of Nova Scotia / by Christopher Bradley Stratton.

2008· dissertation· en· W7009858597 on OpenAlexaboutno aff

Bibliographic record

VenueKnowledge Commons (Lakehead University) · 2008
Typedissertation
Languageen
FieldEnvironmental Science
TopicAnimal Ecology and Behavior Studies
Canadian institutionsnot available
Fundersnot available
KeywordsMartenUnderstoryCapeSnagVegetation (pathology)Endangered speciesHabitatAbundance (ecology)
DOInot available

Abstract

fetched live from OpenAlex

"American marten ( Martes americana Turton) are endangered in Nova Scotia and the population on Cape Breton Island is critically low. A marten recovery strategy is in place but there are large gaps in information regarding future prey abundance and forest structure in managed stands across the Cape Breton Highland Plateau. The Crowdis Mountain study area was established in 2002 by StoraEnso, now New Page, Port Hawkesbury Limited, to study the effects of variable-retention harvesting techniques on habitat requirements of marten. The goal of this study was to determine the response of small mammals, standing and downed dead wood (SDDW), and understory ground vegetation to these alternative harvesting techniques. Sampling occurred from May to September pre-treatment in 2002 and post-treatment 2003 and 2005. It was concluded that treatments did not have a significant effect on small mammals or density of standing and volume of downed dead wood. Small mammals displayed an increasing trend over the entire study area and these increases were correlated with percent cover of fern, slash/fine debris, and CWD volume. Increases in SDDW were found when snag density and CWD volume data were combined for all treatment units but treatment effect was found to be non-significant. This study confirmed that because of past silvicultural practices, stands in the Crowdis Mountain study area had low small-mammal abundances, understory cover, and SDDW. Experimental harvesting treatments implemented were economical and maintained minimum coarse stand-type requirements of marten and did not negatively affect small-mammal abundances. However, at 50 years old, stands were showing signs of wind damage and increasing trends in small-mammal abundance and SDDW recruitment, independent of silvicultural intervention."--Abstract

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 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 categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.842
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
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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 head0.020
GPT teacher head0.234
Teacher spread0.214 · 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 teacher head, not a consensus.

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
Published2008
Admission routes1
Has abstractyes

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