Artibeus aztecus K. Andersen 1906
Bibliographic record
Abstract
206. Aztec Fruit-eating Bat Artibeus aztecus French: Dermanure azteque / German: Azteken-Fruchtvampir / Spanish: Artibeo azteca Taxonomy. Artibeus aztecus K. Andersen, 1906, “Tetela del Volcan, Morelos, Mexico.” Artibeus aztecus is placed in Dermanura by some authors but reassigned to Artibeus (subgenus Dermanura) according to reinterpretation of molecular results. Three subspecies recognized. Subspecies and Distribution. A.a.aztecusK.Andersen,1906—highlandssurroundingMexicanPlateauandSMexico(fromSinaloaandNuevoLeontoOaxaca). A.a.majorW.B.Davis,1969—highlandsfromSCentralAmerica(CostaRicaandPanama). A. a. minor W. B. Davis, 1969 — highlands from S Mexico to N Central America (Chiapas to Honduras). Descriptive notes. Head—body 59-75 mm (tailless), ear 15-20 mm, hindfoot 11-14 mm, forearm 41-49 mm; weight 15-33 g. The Aztec Fruit-eating Bat is the largest species in the smallsize group in subgenus Dermanura. Dorsal fur is charcoal-brown to blackish; ventral fur is slightly paler, with faintly frosted tips; and dorsal fur is long (9-10 mm) and soft. Narrow whitish facial stripes are inconspicuous or absent. Ears and noseleaf are dark brown, and ears lack prominent white edging. Tail membrane is very short, narrow (less than 6-5 mm), deeply incised (V-shaped), and well haired dorsally, with conspicuous fringe of hairs on posterior border. Dental formulais12/2,C1/1,P2/2,M 2/2 (x2) = 28. I' are distinctly bilobated. Chromosomal complement has 2n = 30-31 and FN = 56, with Y,, Y, chromosome system (X-autosome fusion). X-chromosome is subtelocentric, and Y, and Y, chromosomes are acrocentric. Habitat. Pine, pine-oak, and montane cloud forests; mango and banana plantations; tropical deciduous forest close to coniferous highland forests (Sinaloa), and relatively dry valley near Comayagua (Honduras), at elevations of 600-3300 m in Mexico (more commonly above 1000 m). Food and Feeding. In central Mexico, the Aztec Fruit-eating Bat eats wild figs (Ficus spp., Moraceae), capuli cherries (Prunus serotine, Rosaceae), cypress (Cupressus sp., Cupressaceae), and Mexican hawthorn (Crataegus mexicana, Rosaceae). Breeding. Reproductive pattern of the Aztec Fruit-eating Bat is bimodal polyestry, with at least two birth periods per year in February-March and August-September. Pregnant females have been found with single embryos in March-April and July-August and lactating females at the end of August and in September. A juvenile male was captured in June and a young female carried by its mother in September. Young are precocial. Activity patterns. Daytime roosts ofAztec Fruit-eating Bats have been reported on ventral surfaces of banana leaves, in small crevices and caves, and on rock outcroppings and limestone sinks. Aztec Fruit-eating Bats have been captured early in the evening; activity diminished by 22:00 h and increased again in early morning. They are locally uncommon, even in favorable habitat. Movements, Home range and Social organization. No information. Status and Conservation. Classified as [Least Concern on The UICNRed List (as Dermanura azteca). The Aztec Fruit-eating Bat has a wide distribution and presumably large population. It occurs in protected areas,is tolerant to some degree of habitat modification, and is unlikely to be declining at a rate to justify a threatened status. No major threats have been identified. Bibliography. Andersen (1906b), Davis (1969), LaVal & Rodriguez-Herrera (2002), Lopez & Ayala (2014), Reid (2009), Sanchez-Hernandez et al. (2016), Solari (2016d), Webster & Jones (1982a).
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.016 | 0.006 |
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".