Gravel bar inundation frequency: an indicator for the ecological potential of a river
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
In braiding river systems, gravel bars fulfill important ecological functions.At the River Sense, one of the last unregulated rivers in Switzerland, the frequency of gravel bar inundation of a 2 km long site maintaining indicator species such as Myricaria Germanica (German Tamarisk) and Chorthippus pullus (Gravel Grashopper) was studied.Based upon both detailed data collected in the field and a hydrological analysis of the site, a numerical two-dimensional model of the site was developed to investigate the inundation area and frequency of the parafluvial zone for a range in flow regimes.Results show that the free surface of the parafluvial zone is reduced significantly only when floods with a return period greater than one year occur.Three types of gravel bars were distinguished: gravel bars devoid of vegetation occur for return periods less than two years.The elevation of gravel bars that support Myricaria Germanica and Chorthippus pullus are at higher discharge elevations that coincide with discharge return frequencies between 2 to 5 years.Densely vegetated overstory and understory communities occur at floods greater than the bankfull return period of five years which also coincide with the floods principally responsible for altering the riverscape.Findings correlate well with the hypothesis that the sustainability of Myricaria Germanica and Chorthippus pullus is largely dependent upon a specific frequency and duration of intermittent flood inundations.
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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 | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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