Context-dependent life-history variation in a pond snail (<i>Lymnaea elodes</i>) exposed to desiccation and a sterilizing parasite
Bibliographic record
Abstract
:In this study we used a combination of field monitoring and laboratory experimentation to investigate the effects of desiccation and Echinostoma revolutum infection on life-history traits of the pond snail, Lymnaea elodes. Field-collected snails demonstrated a sharp decline in survivorship within 8 weeks of pond drying. Results from a corresponding laboratory experiment, where snails were exposed to parasites prior to aestivation, demonstrated that desiccation played a more important role in snail survival than E. revolutum infection. However, infection influenced host growth patterns as aestivated-infected snails were significantly larger at the end of the experiment relative to aestivated controls. In a second laboratory experiment, exposure after a period of aestivation resulted in higher levels of infection compared to snails that were continuously hydrated. Moreover, exposed-uninfected snails demonstrated higher mortality than either control or infected snails regardless of aestivation treatment. Results from this work 1) demonstrate the importance of incorporating multiple variables into life-history studies and 2) provide insight into the factors underlying host-parasite dynamics in the field.
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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 | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| 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 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".