Cortisol and conservation: understanding barriers to the recovery of a critically endangered species using stress physiology
Bibliographic record
Abstract
Chronic exposure to high levels of glucocorticoid hormones can be detrimental to survival and \nreproduction. Captive breeding and release may inadvertently subject animals to conditions that \nelicit an increase in glucocorticoids, if conditions in captivity or habitats in the wild are inadequate. \nThe critically endangered Vancouver Island marmot (Marmota vancouverensis) was used to investigate \nvariability in hair cortisol concentration, a measure of systemic glucocorticoid exposure. Marmots \nwere sampled from the captive, captive-release and wild populations. Captive animals had \nsignificantly lower cortisol levels than wild animals. Several marmots were also sampled from the \nhistoric wild population that lived on Vancouver Island prior to the proliferation of anthropogenic \ndisturbances. A comparison between contemporary and historic animals showed that marmots at \nmost colonies had cortisol levels that were the same as historic level. Three colonies had significantly \nelevated cortisol levels. Cortisol concentration in the wild was best explained by proximity of a \ncolony to logging roads.
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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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.002 |
| Scholarly communication | 0.002 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.005 | 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".