Contemporary pollen spectra in the James Bay Lowland, Canada, and comparison with other forest-tundra assemblages
Bibliographic record
Abstract
Contemporary pollen spectra obtained from twenty-eight sites in the southwestern James Bay area were examined as an aid to the interpretation of postglacial pollen diagrams. Picea is the dominant pollen type. Pinus banksiana and Betula pollen are prominent, with the shrub birches contributing most of the latter. Other tree genera (Larix, Abies, Populus) extant in the area are underrepresented in the pollen assemblages. Among the shrub taxa present, pollen of two species of Alnus, A. crispa and A. rugosa, are regionally represented. Salix and Myrica pollen are notable locally at sites where these plants occur. Ericaceae values vary according to the type of sampling site. Cyperaceae and Sphagnum values fluctuate greatly depending on the proximity of these taxa to the sampling site. Pollen assemblages of the major taxa in six data sets extending from the forest-tundra of Saskatchewan to the eastern James Bay area in Québec were examined. Comparison yielded similar values of most genera. Local, regional and extra-regional influences, as well as over- and underrepresentation of individual taxa appear to apply uniformly over the entire area thereby providing pollen spectra representative of the forest-tundra of central Canada.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.002 | 0.004 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".