Ecological specialization of Hawaiian Drosophila
نویسندگان
چکیده
منابع مشابه
Hawaiian Drosophila Project Herman
The Zoology Department of the University of Texas has been deeply involved in the study of Drosophila from the early 1920's to the present. During the 1920's Herman Muller, then a member of the faculty, utilized x-rays to create mutations in D. melanogaster, for which he was later awarded the Nobel prize; Theophilus Painter (1934) was the first fully to elucidate the bandings in the polytene ch...
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We used a combination of genomic techniques to monitor chromosomal evolution across hundreds of generations as Escherichia coli adapted to growth-limiting concentrations of either lactulose, methyl-galactoside, or a 72:28 mixture of the two. DNA microarrays identified 8 unique duplications and 16 unique deletions among 42 evolvants from 23 chemostat experiments. Each mutation was confirmed by s...
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BACKGROUND The endemic Hawaiian drosophilids, a unique group that are remarkable for their diversity and rapid proliferation, provide a model for analysis of the process of insular speciation. Founder events and accompanying random drift, together with shifts in sexual selection, appear to explain the dramatic divergence in male morphology and mating behaviour among these flies, but these force...
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The Hawaiian Drosophilidae are comprised of an estimated 1000 species, all arising from a single common ancestor in the last 25 million years. This group, because of its species diversity, marked sexual dimorphism and complex mating behavior, host plant specificity, and the well-known chronology of the Hawaiian Archipelago, is an excellent model system for evolutionary studies. Here we present ...
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According to Loiselle and Barlo~ (1978), "Lekking is the temporary synchronus aggregation of sexually active males for reproduction." It is a type of communal display. Theoretically, males displaying communally are more conspicuous and have a better chance of encountering females. Until recently, most of the research on lek behavior has been done on birds, especially grouse (Tetraonidae) and ma...
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ژورنال
عنوان ژورنال: Oecologia
سال: 1975
ISSN: 0029-8549,1432-1939
DOI: 10.1007/bf00345255