Mechanisms of the filtering area adaptation in Daphnia |
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Authors: | Michal Pop |
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Affiliation: | (1) Department of Hydrobiology, Charles University, Vininá 7, CS-12844, 2 Prague, Czechoslovakia |
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Abstract: | The changes of selected parameters of the filtering comb of the third thoracic limb were studied in a natural population of Daphnia pulicaria Forbes, as well as in experimental enclosures and in lab cultures, including individual life history. Two hypotheses were tested: 1. either these changes are related to the succession of clones coexisting within one population, or 2. the size of the filtering area changes gradually as an individual adaptation during the moulting. No evidence supporting the clonal hypothesis was found. On the contrary, the adaptability of the filtering comb is the same in a natural population as it is in a clone and in individuals. |
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Keywords: | Daphnia filtration morphology |
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