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| Oijen, M.J.P. van; Roselaar, C.S.. |
| Roselaar & Prins (2000) indicated there were two syntypes of Bombycivora japonica von Siebold, 1824; a 1st-winter female in the collection of the Zoologisch Museum Amsterdam, while the other, a male, was considered lost. However, in a letter to Temminck, von Siebold made clear that the species was described on the basis of one specimen. His description is clearly taken from a 1st-year male. Temminck (1828) described Bombicilla phoenicoptera based on the same ZMA specimen and an adult female specimen in the National Museum of Natural History in Leiden, collected by von Siebold, which arrived in Leiden in 1827. The latter species is a synonym of the former. Because it is a female, the ZMA specimen cannot be the holotype of Bombycivora japonica. However,... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Aves; Bombicillidae; Bombycilla japonica; B. phoenicoptera; Bombycivora; Japanese Waxwing; Holotype; Von Siebold; Japan; 42.83. |
| Ano: 2007 |
URL: http://www.repository.naturalis.nl/record/226660 |
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| Roselaar, C.S.. |
| Megapodiidae (megapodes, brush-turkeys, scrubfowl, and relatives) form a peculiar family within the Galliformes. They show an unusual incubation strategy which shows resemblance to that practiced by reptilians but which is unknown for other bird families: eggs are laid in burrows or in mounds of leaves or other organic debris gathered by the birds, and heat generated by decaying leaves or, in case of burrownesting, heat from geothermal activity or from sunradiation results in hatching of the chicks, providing that a temperature of c. 33°C and a moderate humidity are maintained (Dekker & Jones 1992). Once hatched, the chick struggles to the surface and leaves the hatching-area on the foot or on the wing without its parents paying attention to them. This... |
| Tipo: Article / Letter to the editor |
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| Ano: 1994 |
URL: http://www.repository.naturalis.nl/record/505417 |
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| Roselaar, C.S.; Michels, J.P.. |
| The history and taxonomic status of the species-group names Lophochroa goffini Finsch, 1863, and Cacatua tanimberensis Roselaar & Prins, 2000, both used to name the Tanimbar Corella, are reviewed nomenclaturally. It is confirmed that Lophochroa goffini (sensu Finsch, 1863) is not applicable to the Tanimbar Corella, but represents a junior synonym of Cacatua ducorpsii Pucheran, 1853, as shown by Roselaar & Prins (2000). The substitute name Cacatua tanimberensis they proposed is an objective junior synonym of L. goffini and subjective junior synonym of C. ducorpsii. From the nomenclatural point of view, the Tanimbar Corella remains undescribed and is here named. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Cockatoos; Cacatuidae; Tanimbar Corella; New nominal species; History; Nomenclature; Cacatua goffini; Cacatua tanimberensis; 42.83. |
| Ano: 2004 |
URL: http://www.repository.naturalis.nl/record/215560 |
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| Roselaar, C.S.. |
| Based on migrant and winter specimens, 2 separate populations of Knot Calidris canutus are shown to occur in the Netherlands. Both are sufficiently differentiated to deserve recognition on subspecies level. Breeding range, migration routes, and winter areas of both these subspecies are defined. Additional material proves that at least 3 other populations of Knot occur in the Holarctic, at least 2 of these warranting recognition as separate subspecies, but breeding grounds and winter areas are not known for all of these. Morphometrical characters and a map with migration routes for all 5 Knot populations are provided. |
| Tipo: Article / Letter to the editor |
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| Ano: 1983 |
URL: http://www.repository.naturalis.nl/record/505255 |
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| Aliabadian, M.; Roselaar, C.S.; Sluys, R.; Nijman, V.. |
| In the study of diversity patterns, the Mid-domain effect (MDE), which explains gradients in diversity solely on the basis of geometric constraints, has emerged as a null-model against which other hypotheses can be tested. The effectiveness, measured by its predictive power, of these MDE models appears to depend on the size of the study area and the range-sizes of the taxa considered. Here we test the predictive power of MDE on the species richness patterns of birds and assess its effectiveness for a variety of species range sizes. We digitised distribution maps of 889 species of songbird endemic to the Palearctic, and analysed the emergent biogeographic patterns with WORLDMAP software. MDE had a predictive power of 20% when all songbirds were included.... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Aves; Passeriformes; Palearctic; Mid-domain effect; Species richness; Geographic range size; 42.83. |
| Ano: 2007 |
URL: http://www.repository.naturalis.nl/record/256132 |
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| Roselaar, C.S.. |
| Between 4 and 7 October 1973, during a spell of unfavourable weather, 85 North American migratory birds were found dead on board a ship sailing between Costa Rica and Belize and in the roads of Belize. They were donated to the Institute of Taxonomic Zoology, University of Amsterdam, where they were identified and examined on gonads, skull pneumatisation, amount of fat, etc. Some of the species were recorded only once before from Belize under comparable weather conditions. A possible relation between difference in spring and autumn weight, and length of migration route is mentioned. Reliability of age determination by gonads and by skull pneumatisation is discussed. |
| Tipo: Article / Letter to the editor |
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| Ano: 1976 |
URL: http://www.repository.naturalis.nl/record/505385 |
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| Roselaar, C.S.; Prins, T.G.. |
| The type specimens in the bird collection of the Zoological Museum of the University of Amsterdam (ZMA) are listed and discussed. The ZMA, founded 1838, has types of 51 taxa, at least 31 of these are still in use as valid names of species or subspecies, the remainder are synonyms of taxa described earlier or require confirmation. Twenty-three of the 51 taxa in the ZMA consist of holotypes (22 specimens), 11 are syntypes (17 specimens), and 33 are paratypes (110 specimens), and altogether 149 specimens have type status. Among the types of valid species are those of birds like Japanese Waxwing Bombycilla japonica (described 1824) and Sillem’s Mountain-finch Leucosticte sillemi (described 1992). Also, 23 taxa are discussed of which the ZMA has no types,... |
| Tipo: Article / Letter to the editor |
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| Ano: 2000 |
URL: http://www.repository.naturalis.nl/record/504886 |
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| Aliabadian, M.; Sluys, R.; Roselaar, C.S.; Nijman, V.. |
| Explanation of the spatial distribution patterns in species richness, and especially those of small-ranged species (endemics), bears relevance for studies on evolution and speciation, as well as for conservation management. We test a geometric constraint model, the mid-domain effect (MDE), as a possible explanation for spatial patterns of species richness in Palearctic songbirds (Passeriformes), with an emphasis on the patterns of small-ranged species. We calculated species richness based on digitised distribution maps of phylogenetic species of songbirds endemic to the Palearctic region. Data were plotted and analyzed over a one degree longitude equal area map of the Palearctic Region, with a grid cell area of 4062 km². The emergent biogeographic patterns... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Aves endemism hotspot analysis mid-domain effect Palearctic; Songbirds 42.83. |
| Ano: 2008 |
URL: http://www.repository.naturalis.nl/record/280478 |
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