Biak Lorikeet Trichoglossus rosenbergii is split from Coconut Lorikeet T. haematodus (Clements 2007:131–132)
Summary: The island of Biak, already known for its highly unique biodiversity, has gained yet another endemic species, the colorful Biak Lorikeet.
Details: As with many other taxa in the Rainbow Lorikeet Trichoglossus haematodus group, T. rosenbergii of Biak Island off northwestern New Guinea was originally described as a full species. Peters (1937) however considered it just one of 22 subspecies of T. haematodus, which was thus for many years among the world’s most disparate bird species in plumage. Considerable splitting has occurred since, with most sources recognizing several species in the formerly highly polytypic T. haematodus complex, but Biak rosenbergii has only recently been split (del Hoyo and Collar 2014). In the now-much reduced Trichoglossus haematodus group, Biak rosenbergii is the most divergent in plumage, and it is also divergent in a UCE-based DNA phylogeny to a similar degree as other taxa considered species in the genus (Smith et al. 2023). Hence the WGAC agrees with HBW and BirdLife International (2022) and Gill and Wright (2006, IOC v.1.0) in considering rosenbergii a full species.
Clements, J. F., P. C. Rasmussen, T. S. Schulenberg, M. J. Iliff, T. A. Fredericks, J. A. Gerbracht, D. Lepage, A. Spencer, S. M. Billerman, B. L. Sullivan, and C. L. Wood. 2023. The eBird/Clements checklist of Birds of the World: v2023. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/ (קישור)
This switch is actually enough to move all observations into the proper species.
Doing a taxon split would send numerous captive and escapees to Trichoglossus sp. and would not add anything to T. rosenbergii.
חילוקי דעות לא מכוונים מתרחשים כאשר הורה (B) עובר דילול באמצעות החלפת צאצא (E) אל חלק אחר בעץ הטקסונומי, מה שגורם לזיהויים קיימים של ההורה להתפרש כחילוקי דעות עם זיהויים קיימים של הצאצא שהוחלף.
Identification
זיהוי 2 של טקסוןE יהיה חילוקי דעות לא מכוונים עם זיהוי 1 של טקסון B לאחר החלפת הטקסון
אם דילול של הורה גורם ליותר מ-10 חילוקים דעות לא מכוונים, כדאי לך לפצל את ההורה לאחר החלפת הצאצא כדי להחליף זיהויים קיימים של הורה (B) בזיהויים לא סותרים.
This switch is actually enough to move all observations into the proper species.
Doing a taxon split would send numerous captive and escapees to Trichoglossus sp. and would not add anything to T. rosenbergii.