Life history consequences of sterol availability in the aquatic keystone species Daphnia

  title={Life history consequences of sterol availability in the aquatic keystone species Daphnia},
  author={Dominik Martin-Creuzburg and Alexander Wacker and Eric von Elert},
The absence of essential biochemical nutrients, such as polyunsaturated fatty acids or sterols, has been considered as a mechanism determining trophic interactions between the herbivore Daphnia and its phytoplankton food source. Here, we experimentally quantify the sensitivity of two Daphnia species to decreasing amounts of dietary sterols by measuring variations in life history traits. The two species Daphnia magna and D. galeata were fed different mixtures of the sterol-containing green alga… CONTINUE READING


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