A brief history of Purple Loosestrife, Ly thrum salicaria, in Manitoba and its status in 2001
Bibliographic record
Abstract
Purple Loosestrife (Lythrum salicaria L.) has become recognized as an invasive alien plant having deleterious impacts on Manitoba's natural areas.The first herbarium specimen of Purple Loosestrife was collected in 1896 near Neepawa followed by infestations in 1944 at Lockport and in 1951 in Winnipeg.As of 1991 there were 38 known populations of Purple Loosestrife in Manitoba.By the fall of 2001, there were a known 492 populations covering an estimated 5575 ha of habitat.These data indicate a 13-fold increase in the number of Purple Loosestrife infestations between 1991 and 2001 in Manitoba.The majority of Purple Loosestrife (77.6%) was found in central Manitoba infesting 4324 ha.The Netley-Libau Marsh, located in central Manitoba, accounted for 26% of all Purple Loosestrife in Manitoba.Central Manitoba (42.6%) had the majority of all Purple Loosestrife infestations followed by the city of Winnipeg (41.4%), eastern Manitoba (9.9%) and western Manitoba (6.1%).Purple Loosestrife was commonly found in roadside ditches (46%), river banks (25%) and wetland habitats (10%).Typha spp., Phalaris arundinacea and Carex spp.were commonly associated with Purple Loosestrife infestations.Infestations ranged from one plant to thousands of plants.Of the infestations surveyed, 9% had over 1000 plants while 52% had under 100 plants.
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.
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 | 0.000 |
| 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 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".