Seedling response following partial cutting in lodgepole pine forests on caribou winter range in west-central British Columbia
Bibliographic record
Abstract
Group selection and irregular group shelterwood silvicultural systems were applied to older lodgepole pine (Pinus contorta var. latifolia) forests in west-central British Columbia to determine their potential for maintaining northern caribou (Rangifer tarandus caribou) habitat. These silvicultural systems created small openings 15–30 m wide,which were planted with lodgepole pine and interior spruce (Picea glauca x Picea engelmannii) seedlings. Fifth-year survival and growth results indicate that either species could adequately regenerate the small openings created by partial cutting. Pine survival in the partial cuts (93–95%) was comparable to the clearcuts (94%). Pine height and height growth did not vary significantly between treatments; however, diameters were significantly larger in the clearcuts. After five years across all treatments, pine seedlings were 38–42 cm tall with diameters ranging from 7–11 mm. Spruce survival varied considerably between the clearcuts (35–98%) but was more consistent in the partial cuts (66–97%). Total height and height growth differed significantly among treatments, with the shortest spruce seedlings found in the clearcuts. Seedling diameter did not differ among treatments. Average fifth-year height ranged from 31 cm to 44 cm and diameters ranged from 7 mm to 9 mm. To maintain caribou habitat, species should be planted in similar proportions to the pre-harvest stand composition to avoid potential impacts on the terrestrial and arboreal lichens, which are important caribou forage. Key words: caribou, lodgepole pine, partial cutting, planted seedlings, interior spruce, group selection, irregular group shelterwood
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 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 teacher head, 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".