Bibliographic record
Abstract
Potamites ecpleopus (Cope, 1876) Type-locality. Middle and upper Amazon, in Brazil and Peru, restricted by Uzzell (1966) to Río Huallaga, somewhere between Rioja, Moyobamba and Balsaspuerto. Pertinent taxonomic references. Cope (1876), Boulenger (1885), Sinitsin (1930), Burt & Burt (1931), Shreve (1935), Cunha (1961), Uzzell (1966), Peters & Donoso-Barros (1970), Sherbrooke & Cole (1972), Duellman (1978), Cunha et al. (1985), Ávila-Pires (1995), Vanzolini (1995), Ávila-Pires & Vitt (1998), Pellegrino et al. (2001), Bell et al. (2003), Castoe et al. (2004), Doan & Castoe (2005), Chávez & Vásquez (2012), Goicoechea et al. (2016). Distribution and habitat. Potamites ecpleopus is endemic to Amazonia, with an apparently disjunct distribution in western (delimited eastward by the Japurá, Purus, and Beni Rivers) and eastern Amazonia (restricted to the Tocantins –Xingu and Xingu–Tapajós interfluviums, south of the Amazon) (Fig. 15). MZUSP 64623, however, comes from the upper Comemoração River, a second order tributary of the Madeira River, an intermediary location between the western and eastern areas of occurrence. Potamites ecpleopus occurs in Brazil, Colombia, Ecuador, Peru, and Bolivia (Fig. 15). In Brazil, it is known from the states of Pará, Amazonas, Acre, Rondônia, and Mato Grosso. Potamites ecpleopus is semiaquatic and diurnal, inhabits primary and disturbed terra firme forests, where it is found close to streams (with sandy, rocky or muddy bottoms), in swampy areas, on the leaf litter or directly on rocks or mud (occasionally on trunks, branches or limbs); active specimens are either at the margin of, or partially submerged in the water, and they may also be found under logs and in holes between rocks at the edge of water (Sherbrooke 1975; Duellman 1978; Cunha et al. 1985; Dixon & Soini 1986; Ávila-Pires 1995; Vitt & Zani 1996; Vitt & Ávila-Pires 1998; Vitt et al. 1998b; 1999; Schlüter et al. 2004; Whitworth & Beirne 2011).
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 | 0.004 | 0.012 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.008 | 0.001 |
| Scholarly communication | 0.005 | 0.001 |
| Open science | 0.005 | 0.003 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.020 | 0.044 |
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; both teacher heads agree on what is shown here.
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".