Woodcutting behavior in beavers (Castoridae, Rodentia): estimating ecological performance in a modern and a fossil taxon
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
An early Pliocene fossil locality in the Canadian High Arctic preserves the remains of the extinct beaver Dipoides sp. (Castoridae, Rodentia) in association with an assemblage of fossil beaver-cut wood. The wood assemblage presents a first opportunity to investigate woodcutting behavior and ecological performance in an extinct castorid genus. This study compares woodcutting in Dipoides sp. with that of the modern beaver, Castor canadensis , using evidence from small-diameter cut sticks (i.e., sticks transected by parallel series of cut marks) in combination with behavioral observations of Castor woodcutting. During woodcutting both Castor and Dipoides used their incisors unilaterally; the upper incisor was pressed against the stick while the corresponding lower incisor cut. Cut marks were relatively larger for Castor than Dipoides (scaled to incisor size). Compared with Dipoides, Castor more frequently used a cutting strategy that minimized the number of cuts needed to transect a stick (e.g., clipping as opposed to chip removal). Taken together, the behavioral evidence suggests that ecological cutting performance was lower for Dipoides than Castor.
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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 | 0.000 | 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) | 0.000 | 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 it