First Record of Graphoderus Liberus (Coleoptera: Dytiscidae) in North Dakota
Bibliographic record
Abstract
Graphoderus liberus is a moderate sized (11 to 12 mm) predaceous diving beetle (Coleoptera: Dytiscidae). Two species of Graphoderus have been recorded in North Dakota, G. perplexus, and G. occidentalis (Gordon and Post 1965, Hanson and Swanson 1989). Graphoderus liberus is transcontinental from New York to British Columbia, but it is more common along the coasts (Larson 1975). In Canada, G. liberus is uncommon; in Alberta only two specimens have been reported from woodland pools (Larson 1975). There have been no records of G. liberus occurring in North Dakota. Graphoderus liberus is easily distinguished from G. perplexus and G. occidentalis by the lack of anterior and posterior dark transverse bands on the pronotum (Fig. I). April 17,2000, we collected one male G. liberus at the Cottonwood Lake Study Area (Swanson 1987), Stutsman County, North Dakota. The specimen is archived in the aquatic invertebrate collection at the U. S. Geological Survey's Northern Prairie Wildlife Research Center in Jamestown, North Dakota. We captured the specimen in a funnel trap (Swanson 1978) set in 64 cm deep water in the shallow marsh zone (open water phase) of a seasonal wetland (Stewart and Kantrud 1971).
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 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) | 0.002 | 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 source (direct Gemma or distilled Codex), 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".