Lichens from the Hudson Bay Lowlands: diversity in the southeastern peatlands of Wapusk National Park, Manitoba
Bibliographic record
Abstract
Peatlands form an important component of the Northern Hemisphere. They provide substrate for lichen growth and are used by large mammals such as polar bears, caribou, and humans. This study provides the first annotated species list of lichens on the peatlands of Wapusk National Park, Manitoba. It also provides insight into the chemical and genetic diversity of members of Cladonia that dominate the peatlands. Ninety-three species of lichen-forming fungi are reported for the peatlands, fewer than that reported for the coastal beach ridges in Wapusk National Park. This study reports six species of cyanobacterial lichens and two species of Basidiomycete lichens, including two new occurrences for Manitoba, Leptogium intermedium (Arnold) Arnold and Lichenomphalia hudsoniana (H.S. Jenn.) Redhead, Lutzoni, Moncalvo, & Vilgalys. Both chemical diversity in the genus Cladonia and genetic diversity within the species, Cladonia arbuscula (Wallr.) Flotow, were lower than those of a comparable study in a more southerly location. The abundance of apothecia produced by crustose species on the peatlands suggests that crustose species were predominantly sexually reproducing. Foliose species showed production of both sexual and vegetative features, and the fruticose species were mainly vegetatively reproducing. The study raises questions on life history strategies, the influence of habitat on lichen chemistry, and genetic variation of lichen algae in northern environments.
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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 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.002 | 0.002 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.001 |
| 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".