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Registros recuperados: 35 | |
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Dekker, R.W.R.J.; Brom, T.G.. |
Among megapodes, several incubation stategies can be recognized. Eggs are incubated by heat generated from microbial decomposition, volcanism, or the sun. For a long time, controversy has existed whether these strategies represent primitive traits, inherited from reptilian ancestors, or have evolved from the 'regular' way of incubation in birds. In this paper these strategies are interpreted by superimposing them on the most recent phylogenetic hypotheses regarding the inter- and intrafamilial relationships of megapodes. We conclude that similarities shared with reptiles and kiwis are due to convergence. Arguments are put forward that mound-building represents the plesiomorphic condition in megapodes and that burrow-nesting has been derived from it.... |
Tipo: Article / Letter to the editor |
Palavras-chave: Megapodiidae; Incubation-strategies; Evolution; Apterygidae.; 42.83. |
Ano: 1992 |
URL: http://www.repository.naturalis.nl/record/317761 |
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Dekker, R.W.R.J.; Argeloo, M.; Jepson, P.. |
Two nesting grounds of the Moluccan Megapode, Eulipoa wallacei (G.R. Gray, 1860) located on the islands of Haruku and Halmahera, Indonesia, are described. Together they provide nesting opportunities for more than half of the estimated world population of this endangered megapode. Further information is given on six additional nesting grounds. Data are presented on size and origin of the megapode populations using these sites, egg-laying season, behaviour, and measurements of birds and eggs in relation to their breeding strategy of using solar heat for the incubation of their eggs. |
Tipo: Article / Letter to the editor |
Palavras-chave: Moluccan Megapode; Eulipoa wallacei; Indonesia; Haruku; Halmahera; Nesting grounds; 42.73. |
Ano: 1995 |
URL: http://www.repository.naturalis.nl/record/318499 |
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Dekker, R.W.R.J.; Jones, D.N.. |
Contents Contents................................................................................................................................................................3 Introduction..........................................................................................................................................................3 Current studies on megapode phylogeny (Brom, T.G. & R.W.R.J. Dekker) ..............................................7 Megapode phylogeny and the interpretation of incubation strategies (Dekker, R.W.R.J. & T.G. Brom)...19 An evolutionary approach to megapode mating systems (D.N. Jones)....................................................33 Mate choice in Australian brush-turkeys Alectura lathami: A preliminary... |
Tipo: Article / Letter to the editor |
Palavras-chave: Megapodiidae; Galliformes; Aves; Phylogeny; Incubation strategies; Mating systems; Bibliography.; 42.83. |
Ano: 1992 |
URL: http://www.repository.naturalis.nl/record/317553 |
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Dickinson, E.C.; Dekker, R.W.R.J.; Eck, S.; Somadikarta, S.; Kalyakin, M.; Loskot, V.; Morioka, H.; Violani, C.; Voisin, C.. |
A list is provided of the 165 names applied to identifiable Asian forms of species of lark (family Alaudidae). This list summarises our collective knowledge on the whereabouts of types for these names; where our information does not include reliable data we provide notes relating to the deficit and to stimulate others to send us additional data or to suggest sources of information. In two appendices we deal with certain old names that we judge to be indeterminate and we designate a lectotype for Eremophila sibirica (Swinhoe, 1871b). |
Tipo: Article / Letter to the editor |
Palavras-chave: Alaudidae; Larks; Types; Lectotype designation; 42.83. |
Ano: 2001 |
URL: http://www.repository.naturalis.nl/record/219910 |
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Dekker, R.W.R.J.; Dickinson, E.C.. |
Further research into the type of Pitta baudii Müller & Schlegel, 1839, showed that Dickinson et al. (2000) erred in referring to the National Museum of Natural History in Leiden as the collection where a type specimen of this taxon is kept. The correction of the date of description to 1839 has revealed that the four selected specimens cannot be types. The museum received them too late. The confusion has been traced to one of the four being labelled “type”. This we find refers to the illustration by J. Wolf published in June 1845. The 1839 plate was suppressed and the original type relative to this taxon as illustrated therein has not been traced; a depiction of this is therefore of considerable importance. The suppressed plate has been located and is... |
Tipo: Article / Letter to the editor |
Palavras-chave: Pitta baudii; Type-specimen; Validation; Temminck; 42.83. |
Ano: 2001 |
URL: http://www.repository.naturalis.nl/record/219915 |
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Dickinson, E.C.; Dekker, R.W.R.J.; Eck, S.; Somadikarta, S.; Loskot, V.; Morioka, V.; Violani, C.; Voisin, C.. |
A list of about 370 names applied to Asian forms of species of bulbul (family Pycnonotidae) is presented. This list provides information on the whereabouts of a type; where our information does not include reliable data we provide notes to explain the deficit and to stimulate others to offer additional data or sources of information. A lectotypes is designated for P[ycnonotus]. Yourdini [sic] “(Homb. & Jacq.)” G.R. Gray, 1847. Comments are also made on previous lectotype designations for Hypsipetes rufigularis Sharpe, 1877, and Criniger simplex Wallace, 1862, and on the need to designate one for Pycnonotus rufocaudatus Eyton, 1845. |
Tipo: Article / Letter to the editor |
Palavras-chave: Pycnonotidae; Bulbuls; Types; Type species; Lectotype designations; 42.83. |
Ano: 2002 |
URL: http://www.repository.naturalis.nl/record/220206 |
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Registros recuperados: 35 | |
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