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2017 update: Dykstra’s interpopulation crosses

This summer, we found 68 basal plants in the crossing experiment. None of these plants have ever flowered, but maybe next year! We measured plant status, number of rosettes, number of leaves, and length of the longest leaf of the individuals. We also noted damage (herbivory) to the leaves.

These data will allow Amy to test how mating with individuals from other populations affects Echinacea fitness. She planted 15,491 achenes, the offspring of crosses from six of the largest remnant populations. Populations might either benefit or suffer from crossing with plants from another population.

Hegg Lake WMA

Start year: 2008

Location: Hegg Lake WMA

Overlaps with: Dykstra’s local adaptation

Data collected: Plant fitness measurements (plant status, number of rosettes, number of leaves, and length of longest leaf)

Products: Read about Amy’s analysis of the interpopulation crossing experiment in her flog post.

You can find more information about Amy’s experiment and links to previous flog posts regarding this experiment at the background page for the experiment.

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