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Student Presenter(s) and Advisor

Jillian Pastick, Lake Forest CollegeFollow

Location

Durand Art Institute, 2nd Floor Balcony

Abstract

Echinacea angustifolia is a perennial purple coneflower, native to Minnesota. Recently, a non-native species, Echinacea pallida, was introduced to prairie restoration sites near native populations. I examined germination rates of the progeny of four crosses between these species and measured differences in seedling size and morphology. My results show that hybridization of Echinacea species can produce seedlings with variable morphologies and survival rates. These results suggest that genes are likely to flow from non-native to native populations, which may have a negative impact on E. angustifolia populations that are already stressed by habitat fragmentation and habitat loss.

Presentation Type

Poster

Start Date

4-8-2014 2:40 PM

End Date

4-8-2014 4:00 PM

Panel

Posters: The Ken Weik Poster Session

Field of Study for Presentation

Biology

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Apr 8th, 2:40 PM Apr 8th, 4:00 PM

Fitness and morphological variation of progeny of native, non-native, and hybrid Echinacea seedlings

Durand Art Institute, 2nd Floor Balcony

Echinacea angustifolia is a perennial purple coneflower, native to Minnesota. Recently, a non-native species, Echinacea pallida, was introduced to prairie restoration sites near native populations. I examined germination rates of the progeny of four crosses between these species and measured differences in seedling size and morphology. My results show that hybridization of Echinacea species can produce seedlings with variable morphologies and survival rates. These results suggest that genes are likely to flow from non-native to native populations, which may have a negative impact on E. angustifolia populations that are already stressed by habitat fragmentation and habitat loss.