Studies of some aspects of behaviour in the ambrosia beetle, Trypodendron lineatum (Olivier)
Bibliographic record
Abstract
Tim factors and mechanisms which consistently deliver newly overwintered adults of the ambrosia beetle Trypodendron lineatum (Olivier) to specific host trees under specific conditions have been considered. Studies and analyses of the behavioural patterns of the beetle in respect to light, host tree factors, and factors of the environment were made in recognition of the fact that preliminary research results demonstrated the predominant role that reactions to light played!, in the behaviour of the beetle. The results of the studies showed that the beetles, before flight, were strongly phototacstic at temperatures in the range of 5° to 56°C. Positive photic response was inhibited in an increasing percentage of individuals at temperatures above 56°. At 38°C, positive response to light by the beetles ceased to exists. The non-flown beetles reacted quickly to angular deviations of alignment in respect to a light source and turned, with almost equal readiness toward the light regardless of its angle. The beetles' responses to light may be classified as follows: (1) not inhibited, the beetles immediately, move toward the source of light; (2) initially inhibited positive response; (3) inhibited positive response, the beetles may or may not initially inhibited but the general movement toward She light source is not direct; (4) completely inhibited response, the beetles move with no apparent response to light. The photopositive response was found to mask: the other potential capabilities of the non-flown beetles. Exclusion of the photic stimulus from flight-inexperienced beetles resulted in response to host odour in an odour field. Flight experience was found to modify partially the simple photic reaction of some individuals in the absence of host odour, but the majority of the beetles' responses remained unchanged. The behaviour of Trypodendron is not strictly stereotyped in the sense that it follows a definite pattern. While flight may be normal as a conditioning mechanism preparatory to alighting and host finding, response to an "attractive” odour source and subsequent boring behaviour may be exhibited, in the absence of previous flight experience, under certain conditions.
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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 | 0.000 | 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".