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4 results for “Drosophila santomea”
Temperature-dependent competitive outcomes between the fruit flies Drosophila santomea and D. yakuba
<p>We use these data to test whether temperature can indirectly affect the fitness of <i>Drosophila santomea</i> and <i>D. yakuba</i> by altering interspecific competitive outcomes. We show that, when raised in isolation, both <i>D. santomea</i> and <i>D. yakuba</i> display similar variation in relative fitness across temperatures of 18°C, 22°C, and 25°C. However, <i>D. santomea</i> has higher fitness than <i>D. yakuba</i> when experiencing interspecific competition at 18°C, while the inverse is true at 25°C. Patterns of fitness across thermal and competitive environments therefore indicate that the outcome of interspecific competition varies with temperature. We then use a 'coexistence' experiment to show that <i>D. santomea</i> is rapidly (within 8 generations) extirpated when maintained with <i>D. yakuba</i> at 25°C. By contrast, <i>D. santomea</i> remains as (or more) abundant than <i>D. yakuba</i> over the course of ~10 generations when maintained at 18°C. Results provide an example of how the thermal environment can affect interspecific competition and suggest that some species may become more prone to extinction under scenarios of climate change through indirect effects of the thermal environment on competitive advantages between species.</p>
Temperature-dependent competitive outcomes between the fruit flies Drosophila santomea and D. yakuba
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Data from: Sequential adaptive introgression of the mitochondrial genome in Drosophila yakuba and D. santomea
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Expression analysis of Drosophila yakuba, D. santomea and hybrids to evaluate the large-X effect using Nimblegen 60-mer custom made arrays
GEO Series GSE38793. Drosophila yakuba x Drosophila santomea; Drosophila santomea; Drosophila yakuba. 18 samples. Type: Expression profiling by array.
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