Microsatellite analysis of population structure in the Eastern Ribbonsnake, Thamnophis sauritus
Bibliographic record
Abstract
The Eastern Ribbonsnake, Thamnophis sauritus, exists in Nova Scotia as a disjunct population in the Southwest region of the province. This small population, estimated at 1000-3000 individuals, is particularly vulnerable to change due to its isolation and, therefore, was classified as 'threatened' in 2002 by COSEWIC. Because very little is known about the behaviour, ecology, and genetic structure of this species, there is a rare opportunity to analyse the dynamics of a disjunct, peripheral population. Understanding the genetic structure of this population is fundamental to designing conservation and management plans for the species. Samples were taken from 83 snakes in the form of tail clippings from 4 different areas in the south western portion of Nova Scotia, as well as an outgroup from Nantucket, Massachusetts. One microsattellite loci was amplified and found to exhibit polymorphism with multiple alleles. Results show that there is evidence for the presence of low to moderate restriction in gene flow between concentrations of Ribbonsnakes in Nova Scotia. Results of this study will aid the Ribbonsnake recovery team in planning for the management and eventual recovery of this species in Nova Scotia.
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How this classification was reachedexpand
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) | 0.001 | 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 teacher head, 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".