Effect of Farming Activities on Tree Diversity, Density and Community Structure in Agoi-Ekpo, Cross River State Nigeria
Bibliographic record
Abstract
Tree/shrub species richness, tree/shrub density, basal cover, community structure and distributional pattern were evaluated and compared in fallows of 10yr-old and 5yr-old in Agoi-Ekpo, Cross River State. Vegetation data were collected from 20 randomly selected plots (10 plots for each fallow community) of 0.04 ha. A total of 16 tree/shrub species belonging to 12 families were enumerated in the 20 plots. Vegetation structure (crown cover, basal cover, girth and ground cover) differed significantly between the vegetation fallows (P = 0.01). Tree/shrub density differed significantly (t = 13.620, P = 0.01) between the fallow communities with mean values of 168 and 131 trees/shrubs recorded per plot in the 10yr-old and 5yr-old fallows respectively. Simpson’s index of diversity revealed that vegetation in the 10yr-old fallow was more diverse and heterogeneous (0.89) than the vegetation in the 5yr-old fallow (0.86). The difference in vegetation characteristics was attributed to the nature of previous site disturbance and the years of fallow
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 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 source (direct Gemma or distilled Codex), 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".