Topic
Polytelis
About: Polytelis is a research topic. Over the lifetime, 10 publications have been published within this topic receiving 139 citations.
Papers
TL;DR: To examine the phylogenetic relationships of these two species, a 924-bp fragment of the cytochrome-b gene was sequenced from single representatives of the following genera: Geopsittacus, Pezoporus, Neophema, Melopsittacan, Platycercus, Polytelis, Strigops, and Calyptorhynchus.
Abstract: ABssRAcr.-Although designating the Night Parrot (Geopsittacus occidentalis) and the Ground Parrot (Pezoporus wallicus) as each other's closest taxonomic relatives is generally accepted, placing this group with respect to other Australo-Pacific parrots has proven problematical. To examine the phylogenetic relationships of these two species, a 924-bp fragment of the cytochrome-b gene was sequenced from single representatives of the following genera: Geopsittacus, Pezoporus, Neophema, Melopsittacus, Platycercus, Polytelis, Strigops, and Calyptorhynchus. Maximum-parsimony, maximum-likelihood, and distance trees all supported a close association between Geopsittacus and Pezoporus. These two genera were also found to be closely linked with Neophema and Melopsittacus. Despite superficial morphological similarities, Geopsittacus and Strigops (Kakapo) were found not to be closely related. Received 21 December 1992, accepted 6 October 1993.
37 citations
Journal Article•
TL;DR: This study provides the first detailed survey on the variation of hypotarsus mor- phology within extant Psittaciformes and describes a derived hypotarsal structure that supports monophyly of a clade including the genera Psephotus, Eunymphicus, Cyanoramphus, Northiella, Prosopeia, Barnardius, Platycercini, and Melopsittacus.
Abstract: A new taxon of parrot (Psittaciformes) is described from the Middle Miocene of Southern Germany. Bavaripsitta ballmanni gen. et sp. n. is known from an almost complete tarsometatarsus which resembles the corre- sponding bone of some small Psittaculini (Polytelis, Alisterus) and Platycercini (e.g., Psephotus spp.) in general shape and morphology. Although the new taxon cannot be assigned to any of the modern groups of parrots, together with other fossil specimens it shows that there was a considerable diversity of parrots in the Lower and Middle Miocene of the Old World. Our study further provides the first detailed survey on the variation of hypotarsus mor- phology within extant Psittaciformes. A derived hypotarsal structure is described that supports monophyly of a clade including the genera Psephotus, Eunymphicus, Cyanoramphus, Northiella, Prosopeia, Barnardius, Platycer- cus, and Melopsittacus, to the exclusion of Neophema and Neopsephotus (all Platycercini). Also well characterized by a derived morphology of the hypotarsus are Loriinae and Cyclopsittacini. A shared derived hypotarsal morphol- ogy may further support sister group relationship between Agapornis and Loriculus (Psittaculini).
28 citations
TL;DR: The acuariid nematode Dispharynx nasuta was found in a princess parrot at the National Aviary in Pittsburgh, and was the presumed cause of death in this parrot.
Abstract: The acuariid nematode Dispharynx nasuta was found in a princess parrot, Polytelis alexandrae, at the National Aviary in Pittsburgh (Pennsylnania, USA). This is the first report of D. nasuta from the hoster order Psittaciformes, and was the presumed cause of death in this parrot.
14 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2014 | 2 |
| 2007 | 1 |
| 2006 | 1 |
| 2005 | 2 |
| 2004 | 2 |
| 1998 | 1 |