Daphnia magna increase feeding activity in the presence of four amino acids
Bibliographic record
Abstract
Daphnia feeding studies have previously demonstrated increased grazing behaviour in response to the presence of food particles. However, it is not resolved whether these behavioural responses are due to chemosensation or another sensory modality as the particle size and electrical charge of algal cells could be confounding factors and may also play a role in finding food. This study has provided evidence on the role of chemosensation in grazing by exposing Daphnia magna to 20 L-isomer amino acids and monitoring changes in mandible rolling, a behaviour associated with feeding in Daphnia. This study has shown that D. magna increase feeding behaviour, i.e. mandible movements, when exposed to the L-isomers of the amino acids aspartate, cysteine, glutamate and glutamine. These results not only provide insight into Daphnia life history but also provide a tool for researchers to study Daphnia chemosensation.
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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 | 0.007 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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 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".