The Madagascan 'Cuckoo-roller' [Aves: Leptosomidae] is not a roller - notes on the phylogenetic affinities and evolutionary history of a 'living fossil'

• Autorzy: Mayr G
• Języki publikacji: EN

Abstrakty

EN

The phylogenetic affinities and evolutionary history of the Madagascan Leptosomidae (Courol or "Cuckoo-roller") are reviewed to rectify erroneous accounts in the recent literature. These birds are not closely related to rollers, and multiple molecular and morphological data sets congruently support their position outside the clade including Coraciiformes sensu stricto (rollers and ground rollers), Piciformes (woodpeckers and allies), and Alcediniformes (kingfishers and allies). The recent discovery that Plesiocathartes, from the Eocene of Europe and North America, is a stem lineage representative of the Leptosomidae further shows that Pan-Leptosomidae were widely distributed across the Northern Hemisphere in the early Paleogene. The Courol is among the few avian taxa which qualify as "living fossils", and its persistence on Madagascar may have been facilitated by the absence of ecological factors that led to extinction of Pan-Leptosomidae elsewhere.

PL

W odpowiedzi na błędne ujęcia powtarzane w literaturze, praca ta zawiera rewizję filogenetycznych pokrewieństw i ewolucyjnej historii madagaskarskich kuroli Leptosomidae. Liczne molekularne and morfologiczne dane zgodnie wskazują, że ptaki te nie tylko nie są blisko spokrewnione z kraskami, ale nawet nie należą do kladu obejmującego kraskowe Coraciiformes sensu stricto (kraski i ziemnokraski), dzięciołowe Piciformes i zimorodkowe Alcediniformes. Co więcej, ostatnie odkrycie, że Plesiocathartes Gaillard, 1908 z eocenu Europy i Ameryki Płn. reprezentuje pienne Leptosomidae wykazuje, że Pan-Leptosomidae były szeroko rozpowszechnione we wczesnym paleogenie Półkuli Północnej. Kurol jest jednym z nielicznych ptasich taksonów, które kwalifikują się jako "żyjące skamieniałości", a jego przetrwanie na Madagaskarze jest zapewne wynikiem braku ekologicznych czynników, które doprowadziły do wymarcia Pan-Leptosomidae na pozostałych obszarach.

Słowa kluczowe

EN

Africa; Europe; North America; Comoro Islands; Madagascar; Eocene; Aves; bird; Leptosomidae; Leptosomus discolor; Courol; Cockoo-roller zob.Courol; Plesiocathartes; phylogenesis; phylogenetic affinity; fossil record

• Wydawca: -
• Czasopismo: Acta Ornithologica
• Rocznik: 2008
• Tom: 43
• Numer: 2
• Opis fizyczny: p.226-230,fig.,ref.

Twórcy

autor

Mayr G

• Forschungsinstitut Senckenberg, Sektion Ornithologie, Senckenberganlage 25, D-60325 Frankfurt am Main, Germany

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