Investigation and Analysis of Parasitic Characteristics of <i>Taxillus thibetensis</i> in Kunming Haikou Forest Farm
Bibliographic record
Abstract
Mistletoes (Loranthaceae) is well known as a common hemi-parasitic shrub and its excessive reproduction can limit the function of natural forest and plantation on ecology, economy and society. By investigation, mistletoes were found in some area of Kunming Haikou Forest Farm, and the main type is Taxillus thibetensis . To monitor the spread of parasite and understand the choice preference, our study had focused on the enrichment areas of T . thibetensis in Kunming Haikou Forest Farm and conducted sample surveys from the center and four adjoining areas. The host selection of T. thibetensis was investigated and the regression relation between parasitic intensity and host growth characteristics was constructed. The results showed that the quadrat Two (M2; enrichment center) characterized by minimum canopy density (30%) and maximum slope gradient had a serious damage, while a few influence was found in others four quadrats (M1, M3, M4, and M5; adjoining areas), suggesting an initial stage of parasite spread. T. thibetensis showed a strong host selection and Quercus aliena was main host plants. There was no clear correlation between the spread of T. thibetensis and proportion of Q. aliena in community. The stepwise regression reveals the linear relationship between parasitic intensity and host characteristics. Crown width and diameter of Q. aliena were introduced into regression model under corrected R 2 fitting of 0.526, and the equation was y=-0.467+0.152x 1 +0.110x 2 . The parasitic position of T. thibetensis in M2 and M1 focused on the 40%~80% of host plants height, while the parasites were scattered over the trees in M3, M4 and M5. This work lays a scientific foundation for ecological control of T . thibetensis .
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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 | 0.000 |
| 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) | 0.000 | 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".