Systematics and Ecology of Chironomidae (Diptera) Associated with Tobin Lake Reservoir and the Saskatchewan River
Why this work is in the frame
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Bibliographic record
Abstract
One hundred and thirty-one species belonging to 56 genera of the family Chironomidae are recorded from the Saskatchewan River and Tobin Lake , a hydroeIectric impoundment on the lower reaches of the river. The larva and pupa for each species are described and keys for identification are presented. Seventy-three species were assigned existing names. Paratanytarsus confusus Palmen, P. laccoph i Ius (Edwards), Cricotopus curtis Hirvenoja and Orthocladius rivicola Kieffer are recorded from North America for the first time. The following information is presented for each species: original literature reference, description of pupa and larva, remarks, biological notes and distribution. Illustrations of important taxonomic characters are presented. Examination of available information suggests that the post-glacial origin of the Saskatchewan River Chironomidae was primarily from refugia south of the Wisconsin ice sheets. A few species such as Synorthocladius semivirens may have originated from Beringia. Analysis of the Saskatchewan River chironomid fauna in the vicinity of the Squaw Rapids Hydroelectric Development showed that this family represented more than 2/3 of the aquatic insect species. Comparison of the upstream and downstream fauna showed distinct differences in the chironomid community. Downstream, some upstream species were eliminated and replaced by others, some species became less abundant, others became more abundant and still others remained unchanged. A number of environmental parameters appear to influence the chironomid community. An altered thermal pattern caused delay in the onset of spring emergence of most species examined.
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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) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.002 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.004 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.002 | 0.001 |
| Research integrity | 0.001 | 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 it