منابع مشابه
On the Males and an Intersex-like Specimen of the Parthenogenetic Saw-fly Pristiphora Pallipes, Lep.*
WHILST conducting biological experiments on parthenogenesis in saw-flies, during the year 1923, the writer obtained two males and an intersex-like specimen of the species Pristiphora pallipes, Lep., under somewhat peculiar circumstances. As this species appears almost completely thelytokous—the males being exceedingly rare—and as sexual abnormalities in it have never been observed before, and i...
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6 1 Division of Epigenetics, DKFZ-ZMBH Alliance, German Cancer Research Center (DKFZ), 7 Im Neuenheimer Feld 580, 69120 Heidelberg, Germany 8 2 Institute for Environmental Sciences, University of Koblenz-Landau, Forststrasse 7, 76829 9 Landau, Germany 10 3 Institute of Pharmacy and Biochemistry, Johannes Gutenberg-University Mainz, 11 Staudingerweg 5, 55128 Mainz, Germany 12 * present address: ...
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For more than a quarter century, the Princeton Engineering Anomalies Research (PEAR) laboratory has engaged in a broad range of experiments on consciousness-related physical anomalies and has proposed a corresponding selection of theoretical models that have combined to illuminate the fundamental nature of the provocative phenomena that emerge. Productive pursuit of this topic has inescapably i...
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متن کاملThelytokous parthenogenesis in eusocial Hymenoptera.
Female parthenogenesis, or thelytoky, is particularly common in solitary Hymenoptera. Only more recently has it become clear that many eusocial species also regularly reproduce thelytokously, and here we provide a comprehensive overview. Especially in ants, thelytoky underlies a variety of idiosyncratic life histories with unique evolutionary and ecological consequences. In all eusocial species...
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ژورنال
عنوان ژورنال: Annals of the Entomological Society of America
سال: 1917
ISSN: 1938-2901,0013-8746
DOI: 10.1093/aesa/10.4.330