Coevolutionary patterns between coloration and diel activity in moths
Bibliographic record
Abstract
Anti-predator coloration is part of a key survival strategy in animals, often coevolving with behavioural traits such as diel activity. While previous studies have explored the link between conspicuous sexual signals and diurnality, the association between defensive coloration and diel activity remains unresolved. Here, we investigate the coevolutionary relationship between anti-predator coloration and diel activity in moths, a diverse clade with variable colour and activity patterns. Using a dataset of 322 moth species, we classified coloration of each species as cryptic or conspicuous and diel activity as diurnal, nocturnal, crepuscular or both day and night active ('All'). We applied phylogenetic comparative methods to assess evolutionary transitions between these traits. Our findings suggest that moths ancestrally exhibited cryptic coloration and nocturnality. Conspicuous coloration was more frequent in diurnal species, supporting an evolutionary association between daytime activity and being conspicuous. Transitions between nocturnal and diurnal activity occurred predominantly through an intermediate All state, particularly in cryptic species. Cryptic diurnality also evolved in some lineages, possibly driven by specific ecological factors such as when thermoregulatory needs are high. These findings provide insights into the interplay between diel activity and anti-predator coloration, with implications for understanding correlated evolution between these two traits.
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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 | 0.000 | 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 | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.001 |
| 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 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".