<i>Aneriophora aureorufa</i> (Philippi, 1865) (Diptera: Syrphidae): a fly specialized in the pollination of <i>Eucryphia cordifolia</i> Cav. (Cunoniaceae R. Br.), an endemic species of South American temperate forest
Bibliographic record
Abstract
The order Diptera is the second most important group of pollinators worldwide. Many flies are considered generalist pollinators, but specialist flower flies’ associations are rare or uncommon. The present study aimed to determine the level of specialization in pollination for Aneriophora aureorufa (Philippi, 1865) (Diptera: Syrphidae), an endemic species of the South American temperate forests. The study evaluates also the species abundance in different sampling sites and environments. Our data suggest that Aneriophora aureorufa has an exclusive and extremely narrow association with the flowers of Eucryphia cordifolia Cav.¸ an endemic Chilean species. We reviewed the literature on Chilean pollinator species searching for information about Aneriophora Stuardo & Cortés 1952 and compared its exclusive association with other specialist flies. We conducted long-term fieldwork for 22 years in one location during the flowering season and over a period of one to six years in five additional locations. In our field study we recorded all insects which had contact with stigma and/or stamens of 25 plant species. We found that Aneriophora visits flowers of E. cordifolia in both low absolute abundance and low relative percentage, and occasionally visits flowers of two other species. In the northern distributional range of A. aureorufa, where E. cordifolia is absent, the hoverfly was recorded in flowers of Laurelia sempervirens (Ruiz & Pav.) Tul. (Chilean laurel, Atherospermataceae), but in low frequency (0.01 flowers/min). In a site where we have a long-term study, A. aureorufa represented only 0.2% of all flower visitors, and its abundance was higher in canopy forests, visiting 0.03 flowers/min. Based on our observations and the literature review we propose that (1) Aneriophora is one of the most specialized pollinator flies described until now; (2) the species is more frequent in old-growth forests than in forest edges or isolated trees.
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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 | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| 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 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".