Transformation of head structures during the metamorphosis of Chrysomela populi (Coleoptera: Chrysomelidae)
Why this work is in the frame
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Bibliographic record
Abstract
External and internal head structures of last instar (3rd) larvae, 4th day pupae and adults of Chrysomela populi were examined using a combination of traditional and modern morphological techniques, especially μ-computed tomography and computer-based 3D reconstruction. Morphological differences and similarities between the stages were assessed. In addition to long known transformations such as the appearance of compound eyes and the reorientation of the head capsule, the adult differs from the larva by having elongated antennae and palps, a gula and anterior and dorsal tentorial arms. Additionally, several changes in the muscular system occur. Most of these cephalic transformations are related to different tasks playing a predominant role in the developmental stages: feeding in the larvae, and dispersal and mating in the adults, the latter requiring improved sensory perception. The 4th day pupal head shows a combination of adult and larval characters. Almost all adult cephalic elements are already present but the internal anatomy shows several larval traits, especially in the musculature. The central nervous system is intermediate with enlarged optic lobes but still identifiable individual nerves cords. A short historical review on the application of non-invasive methods to study morphological details of metamorphosis is provided and the advantages and limitations of these approaches are discussed.
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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