1. Research in Stickleback Fish

2. benthic limnetic MALESFEMALES What’s different between the species?

3. Limnetic FishBenthic Fish SizeSmallerLarger ShapeSlim-bodiedDeep-bodied Male breeding colorBlue & RedBlack benthic limnetic

4. Limnetic FishBenthic Fish SizeSmallerLarger ShapeSlim-bodiedDeep-bodied Male breeding colorBlue & RedBlack PreyPlanktonWorms & Insects Feeding habitatOpen waterLake bottom

5. Limnetic FishBenthic Fish SizeSmallerLarger ShapeSlim-bodiedDeep-bodied Male breeding colorBlue & RedBlack PreyPlanktonWorms & Insects Feeding habitatOpen waterLake bottom

6. Limnetic FishBenthic Fish SizeSmallerLarger ShapeSlim-bodiedDeep-bodied Male breeding colorBlue & RedBlack PreyPlanktonWorms & Insects Feeding habitatOpen waterLake bottom

7. Limnetic FishBenthic Fish PreyPlanktonWorms & Insects Feeding habitatOpen waterLake bottom SizeSmallerLarger ShapeSlim-bodiedDeep-bodied Male breeding colorBlue & RedBlack Breeding habitatOpen, ShallowVegetation, Deeper

8. Females search for mates in specific habitats -Limnetic females search for limnetic males in open habitat - Benthic females search for benthic males in vegetated habitat

9. When vegetation is present... Limnetic FishBenthic Fish PreyPlanktonWorms & Insects Feeding habitatOpen waterLake bottom SizeSmallerLarger ShapeSlim-bodiedDeep-bodied Male breeding colorBlue & RedBlack Breeding habitatOpen, ShallowVegetation, Deeper If all the vegetation is lost, what might change?

10. When vegetation is present... Limnetic FishBenthic Fish PreyPlanktonWorms & Insects Feeding habitatOpen waterLake bottom SizeSmallerLarger ShapeSlim-bodiedDeep-bodied Male breeding colorBlue & RedBlack Breeding habitatOpen, ShallowVegetation, Deeper If all the vegetation is lost, what might change?

11. Questions: 1) Where will benthic and limnetic males nest? 2) How will benthic and limnetic females find mates if vegetation is missing?

12. Questions: 1) Where will benthic and limnetic males nest? 2) How will benthic and limnetic females find mates if vegetation is missing?

13. Where will limnetic males and benthic males build their nests? VEGETATION OPEN

14. Where will limnetic males and benthic males build their nests? VEGETATION OPEN We predict that benthic males will nest in vegetation and limnetic males will nest in the open

15. Where will limnetic males and benthic males build their nests? VEGETATION OPEN We predict that benthic males will nest in vegetation and limnetic males will nest in the open OPEN What do you predict?

16. Where will limnetic males and benthic males build their nests? VEGETATION OPEN We predict that benthic males will nest in vegetation and limnetic males will nest in the open OPEN It turns out that Benthic males are very aggressive. They keep limnetic males from building nests.

17. Questions: 1) Where will benthic and limnetic males nest? 2) How will benthic and limnetic females find mates if vegetation is missing?

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