The vocal behaviour of a Neotropical suboscine songbird, the Barred Antshrike (Thamnophilus doliatus)
Bibliographic record
Abstract
Despite the high biodiversity that characterizes the tropics relative to temperate latitudes, we know comparatively little about the ecology and behaviour of tropical animals. In many tropical birds, males and females coordinate their songs to form duets. My thesis quantitatively describes the vocal behaviour of Barred Antshrikes (Thamnophilus doliatus), Neotropical duetting songbirds. My thesis consists of two main components: a thorough description of vocal behaviour and a playback experiment testing two hypotheses for duet function. I found substantial sex differences in the fine structure of Barred Antshrike songs. Analysis of passive recordings revealed that song output is highest during the early morning and in the period prior to nesting. Playback results indicate that duets are important in territory defence and intrasexual aggression between females. Evaluating communication strategies of tropical species is important for understanding patterns of behavioural ecology and provides useful comparisons to patterns observed in north-temperate regions.
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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".