The Role of Aquatic Plants in Structuring Daphnia Food Quality & Quantity
- Shallow lakes are very common, recreationally important and have two stable states: the preferred clear-water, plant-dominated state & the turbid-water, algal-dominated state.
- Large grazing zooplankton (e.g., Daphnia) help maintain the clear-water state by keeping algal populations low.
- Horizontally migrating Daphnia encounter heterogeneity in resource quantity and quality in shallow- and deep-water environments due to algae-plant nutrient competition.
- No studies have specifically examined the horizontal distribution of Daphnia resources in shallow lakes or the effects of this variation on Daphnia growth and reproduction.
- Is there a pattern of lower quality & quantity algae with decreasing distance from shore and increasing plant density?
- How does the shallow-water environment affect Daphnia growth rate and reproduction?
- Whole-lake intensive field surveys of multiple lakes – Summer 2008 & 2009
- In-lake mesocosm experiments – Summer 2009
- Daphnia growth assays and reproduction experiments in the lab – Summer 2009
- EPA STAR Fellowship Program
- Gates Millennium Scholarship Program
- MSU Center for Water Sciences
Fish and Wildlife Biologist, US Fish and Wildlife Service