Nontarget feeding of leaf-beetles introduced to control purple loosestrife (Lythrum salicaria L.)
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
Purple loosestrife (Lythrum salicaria L.) is an invasive nonindigenous plant that negatively affects North American wetlands. In 1992, four host-specific insect herbivores were introduced from the plant's native range as biological control agents and are now established in over 30 states and 10 Canadian provinces. Severe defoliation of purple loosestrife by Galerucella calmariensis L. and G. pusilla Duft. (Coleoptera: Chrysomelidae) selectively reduced purple loosestrife biomass by as much as 95% at many early release sites. At three sites, mass emergence of new generation Galerucella adults resulted in localized, short-term attack on Rosa multiflora Thunb., Potentilla anserina L., and Decodon verticillatus (L.) Elliott. Individuals of the same plant species away from the immediate emergence areas and at other release sites remained undamaged, and we observed neither feeding nor oviposition on the same plants by overwintered adults. Attack did not persist into the next growing season, and nontarget plants grew and appeared vigorous the following year, while purple loosestrife remained suppressed. Such "spillover" does not constitute a host shift; beetles are unable to complete development on these nontarget plants. Spillover effects have been observed in other biocontrol programs and do not affect distribution or abundance of nontarget species. We anticipate that occasional spillover with transient attack on nontarget species may occur at other release sites with high population densities of the Galerucella species. Careful monitoring is the best means to determine long-term impact.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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) | 0.000 | 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 it