AULACORHYNCHUS PRASINUS PDF

Northern Emerald-Toucanet Aulacorhynchus prasinus Like other species of Aulacorhynchus, it is primarily bright green, with a white or blue throat, and rufous . Northern Emerald-Toucanet Aulacorhynchus prasinus. Order: Piciformes; Family: Ramphastidae; Polytypic: 7 subspecies; Authors: Thomas S. Schulenberg. San Luis Potosí and Oaxaca); Aulacorhynchus prasinus warneri: Mts. of se Mexico (Sierra de Los Tuxtlas in s Veracruz); Aulacorhynchus prasinus [ virescens or.

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Emerald Toucanet (Aulacorhynchus prasinus) | HBW Alive

Currently 8 subspecies of Northern Emerald-Toucanet are recognized, which primarily vary in the color of the throat and of the bill. These subspecies can be divided into up to 4 groups which sometimes are recognized as separate species; see also Related Species. The following short descriptions are based on HafferShort and Horneand Winkerexcept where otherwise noted:.

Similar to nominate prasinusbut the throat has a yellowish wash, and there is a “moderately bright yellowish band” on the auriculars Winker Restricted to the Tuxtlas.

Similar to nominate prasinusbut the rear of the auriculars and throat are yellower; has less of a blue tint on the breast; yellower flanks and sides; darker chestnut tips to the rectrices; and is slightly smaller. Very similar to other members of the Emerald group, but paler, and slightly smaller, although with a bill as long or longer than in adjacent populations.

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ADW: Aulacorhynchus prasinus: INFORMATION

The bill is mostly black, with a broad yellow stripe along the culmen, and a prominent vertical orangey brown stripe at the base. The forecrown is paler, yellowish white. Throat and sides of the face below the eye white as in the Emerald group but the rear margin is bluer.

The throat and lower sides of the face are deep blue. The bill is mostly black, with a broad yellow stripe along aulacorhynchs culmen; base of the culmen is chestnut. This subspecies has been considered as a synonym of caeruleogularis Short and Horne Similar to the “Blue-throated” prasjnus throat and lower sides of the face deep blue; bill mostly black, with a broad yellow stripe along the culmenbut the crown and upper back are greener less bronzy.

Base of the culmen is black not chestnut. Phylogenetic analysis of DNA sequence data, from both mitochondrial and nuclear genes, indicates that the Aulacorhynchus prasinus complex sensu lato Aulacorhynchus prasinus and Aulacorhynchus albivitta Southern Emerald-Toucanet is sister to all other members of Aulacorhynchus Bonaccorso et lrasinus. The Aulacorhynchus prasinus complex consists of ca 15 taxa, distributed from Mexico south to Bolivia.

The number of species recognized among these 15 taxa varies from one PetersHafferShort and Horne or two Chesser et al. All authors are in broad agreement that the 15 taxa in this complex can be arranged into seven or eight major groups see Geographic Variation for prasinus and albivitta.

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The wide disparity stems in part from the adoption of differing species concepts, with adherents of a biological species concept recognizing few species than do those who accept a phylogenetic or evolutionary species concept. In any event, the major groups in the prasinus complex sensu lato usually are allopatric, so direct tests of reproductive isolation are not possible but note that two groups in Aulacorhynchus albivitta hybridize where they meet in northern Peru; Haffer Systematics Currently 8 subspecies of Northern Emerald-Toucanet are recognized, which primarily vary in the color of the throat and of the bill.

The following short descriptions are based on HafferShort and Horneand Winkerexcept where otherwise noted: Recommended Prasinuus Schulenberg, T. Northern Emerald-Toucanet Aulacorhynchus prasinusversion 2. In Neotropical Birds Online T.

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