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On the identities of Muyudesmus obliteratus KRAUS, 1960 versus Poratia digitata (PORAT, 1889), with first biological ovservations on parthenogenetic and bisexual populations (Diplopoda: Polydesmida: Pyrgodesmidae).

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Adis,  Joachim
Working Group Tropical Ecology, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society;

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Wilck,  Lars
Working Group Tropical Ecology, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society;

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Hansen,  Berit
Working Group Tropical Ecology, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society;

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Citation

Adis, J., Golovatch, S. I., Wilck, L., & Hansen, B. (2000). On the identities of Muyudesmus obliteratus KRAUS, 1960 versus Poratia digitata (PORAT, 1889), with first biological ovservations on parthenogenetic and bisexual populations (Diplopoda: Polydesmida: Pyrgodesmidae). Progress in Studies on Myriapoda and Onychophora. Proceedings of t, 149-170.


Cite as: http://hdl.handle.net/11858/00-001M-0000-000F-DF15-5
Abstract
Discovery of apparently atavistic males in the parthenogenetic European hothouse millipede Poratia digitata has allowed the problem of its identity to be resolved versus the bisexual trans-Amazonian Muyudesmus obliteratus. Both these species, although similar superficially, are quite distinct taxonomically, but their respective genera appear extremely close if not identical. A parthenogenetic (= thelytokous) population of M. obliteratus has been recorded in a hothouse at Kiel, Germany, thus making both the species and the genus formally new to the fauna of Germany and of Europe. Males were obtained from eggs of obligatorily parthenogenetic females when kept at higher temperatures in the laboratory compared to the hothouse. Based on laboratory observations, the first data on the biology of both species and on cross-breeding experiments in M. obliteratus, between the bisexual populations from Manaus, Tabatinga and Nauta (Amazonia of Brazil and Peru) as well as the parthenogenetic population from Kiel, are provided.