A layover in Europe: reconstructing the invasion route of asexual lineages of a New Zealand snail to North America
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
Biological invasions – defined as non-native species that negatively effect native ecosystems and biodiversity – are an increasing problem worldwide. High genetic variation is in general a critical factor for invasion success, meaning that the global invasion success of a handful of asexually reproducing lineages of the gastropod Potamopyrgus antipodarum is both puzzling and has the potential to help illuminate why some invasions succeed while others fail. Here, we used a geographically broad sampling scheme (N = 1617) including native New Zealand populations and invasive North American and European populations and multilocus nuclear SNP markers to provide the first population genetic assessment of the relationships of these populations across continents including the native range. Our analyses revealed New Zealand to be the source of the two main European genetic lineages. One of these two European lineages was in turn the source of at least one of the two main North American genetic clusters of invasive P. antipodarum , located in Lake Ontario. The other widespread North American group seemed to have a mixed origin including the other European lineage and two New Zealand clusters. Altogether, our analyses suggest that several clonal lineages of P. antipodarum are responsible for the worldwide invasion. The illumination of the invasion process of this destructive snail provides critical information on understanding the underlying mechanisms of invasion processes and preventing future introductions.
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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) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| 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) | 0.002 | 0.001 |
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