Density and abundance estimation of the neotropical otter (Lontra longicuadis annectens Olfers, 1818) in the Alvarado Lagoon System, Veracruz
Bibliographic record
Abstract
Antecedentes. En Mxico la nutria neotrpical (Lontra longicaudis annectens, Olfers, 1818) se encuentra ampliamente distribuida y sus poblaciones estn amenazadas. Objetivos. Estimar la densidad y abundancia de la nutria de ro neotropical en el Sistema Lagunar de Alvarado (SLA), Veracruz. Mtodos. El SLA tiene una extensin de 51,960.52 hectreas y est compuesto por lagunas costeras, lagunas interiores y ros. Por medio de la tcnica de muestreo a distancia con transectos sistemticos, se estim la distribucin, densidad y abundancia de la nutria neotropical en el SLA. Resultados. Se obtuvieron un total de 25 avistamientos independientes de nutrias, siendo los ros Limn, Blanco y Culebrilla donde se registraron con mayor frecuencia. Se estim una abundancia de 934 (% C.V.= 20.45) nutrias para todo el SLA, con una densidad de 0.179 organismos / km 2 (% C.V.= 20.45). Conclusiones. Este estudio contribuye a determinar una primera estimacin directa de la densidad, para esta especie en una regin de Mxico. La importancia de este estudio es la precisin con la que se estima la poblacin de nutrias, lo que permite tener una informacin ms robusta para tomar decisiones y acciones para el manejo y conservacin de la especie.
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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".