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Fragmentation regimes of Canada's forests

2011· article· en· W1863591865 on OpenAlexaffvenueabout
Michael A. Wulder, Joanne C. White, Nicholas C. Coops

Bibliographic record

VenueCanadian Geographies / Géographies canadiennes · 2011
Typearticle
Languageen
FieldEnvironmental Science
TopicForest Management and Policy
Canadian institutionsNatural Resources CanadaUniversity of British ColumbiaCanadian Forest Service
Fundersnot available
KeywordsFragmentation (computing)Forest fragmentationGeographyBiodiversityEcosystemEnvironmental sciencePhysical geographyForestryEnvironmental resource managementEnvironmental protectionEcologyBiology

Abstract

fetched live from OpenAlex

Canada is a large nation, approximately 1 billion hectares in size, and until recently, no national assessment of forest fragmentation had been undertaken. To assess national level biodiversity and ecosystem condition, national drivers of forest fragmentation are identified as being either primarily natural (e.g., resulting from wildfires, water features, or topography), or primarily anthropogenic (e.g., resulting from urbanization or roads and associated activities such as forest harvesting and oil and gas exploration). The relative importance of each of these fragmentation drivers within Canada's ten forested ecozones, which occupy approximately 650 million ha, is assessed using ecozone summaries and standard scores. Forest pattern metrics were generated from a Landsat‐derived land cover product and fragmentation drivers were characterized using available national datasets. Through this analysis, we combine and portray the relative importance of forest patches with spatial layers indicative of natural and anthropogenically induced conditions as driving various fragmentation regimes over the forested area of Canada. The forest fragmentation in Canada can be characterized primarily by natural drivers, whereas fragmentation regimes attributable to anthropogenic drivers are typically regionally located and related to industrial activities and access (i.e., roads). We identify three scenarios in our results that characterize forest fragmentation in Canada: ecozones with similar forest patterns but different drivers; ecozones with similar patterns and drivers; and finally, ecozones with both different patterns and different drivers. Our findings indicate that national assessments of forest fragmentation should account for both natural (and inherent) and anthropogenic sources of fragmentation .

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), Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.158
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
Bibliometrics0.0010.003
Science and technology studies0.0000.001
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0040.000

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 head0.008
GPT teacher head0.177
Teacher spread0.169 · 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

Citations30
Published2011
Admission routes3
Has abstractyes

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