Studies on the relationship of water balance properties and survival in the Hawaiian drosophilid, D. Mimica |
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Authors: | IA Eckstrand RH Richardson |
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Institution: | Department of Zoology, The University of Texas at Austin, Austin, TX 78712, U.S.A. |
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Abstract: | Some aspects of the relationship between water balance characteristics and biological fitness have been explored both for a laboratory-reared stock (K85P1) of Drosophila mimica and for each of four field-caught populations of D. mimica. At low av's, there is a clear correlation between water loss rates and survival time, but at saturation, the relationship is less striking. Neither body weight nor sex correlate strongly with water loss rate at 0.70 av, but females survive longer than males. Some differences in the response to desiccation between populations from different collection sites are also suggested. |
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Keywords: | Water balance survival Hawaiian drosophila |
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