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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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| Stinson, D.W.; Glass, P.O.. |
| Introduction The Micronesian megapode Megapodius laperouse, one of the smallest megapode species, is endemic to the Mariana (M. l. laperouse) and Palau (M. l. senex) Islands in the western Pacific. We outline here the outlook for the species and aspects of their biology that need investigation. A more detailed account of the status and biology of M. l. laperouse in the Marianas is in preparation. Status and distribution The Micronesian megapode in the Marianas is now restricted to the remote volcanic islands north of Saipan, with the exception of a small remnant population on Aguijan and a reintroduced population on Saipan. In historic times, this species was found on the larger coral islands of Guam, Rota, Tinian, and Saipan, but was common only on... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Megapodius laperouse; Status; Incubation-strategies; Conservation.; 42.83. |
| Ano: 1992 |
URL: http://www.repository.naturalis.nl/record/317892 |
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