Seasonal Variation in Sex Ratio for Gray Bats (Myotis grisescens) at a Hibernaculum
Bibliographic record
Abstract
The federally endangered Myotis grisescens (Gray Bat) is a cave-obligate species that exhibits swarming behavior outside hibernacula in the fall and then emerges in spring after hibernation. Sex ratios of other Myotis are documented to shift at hibernacula from male- to female-dominant in the fall swarming period, and from female- to male-dominant in the spring emergence. We captured Gray Bats during the winter of 2013, fall of 2013 and 2014, and the spring of 2014. Using chi-squared analysis to compare differences among seasons, we document changes in sex ratio for a Gray Bat population at a single large hibernaculum. The sex ratio shifted from male- to female-dominated in the fall of 2013 and 2014 and again in the spring of 2014. During the winter, while Gray Bats are hibernating, we documented a 1:1 ratio. Based on our results, it appears that Gray Bats may exhibit different behavior compared to other Myotis in the spring, possibly linked to being cave obligates.
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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 | 0.000 | 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 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".