Tracking Population Change in the Endangered Wood-poppy

Amy Wiedenfeld - Tracking Population Change in the Endangered Wood-poppy (Stylophorum diphyllum)

Nature Lethbridge invites you to a presentation on the wood-poppy (Stylophorum diphyllum), a federally endangered in Canada, with few known populations. Though the wood-poppy is rare, little is known about the population dynamics, and whether or not the remaining populations are likely to remain viable. Amy Wiedenfeld has begun collecting demographic data on each of the wood-poppy populations in Ontario, including population counts and size measurements of relevant environmental variables. These data will be used to calculate the growth rate of each population, and test whether population growth is predictable based on environmental factors, such as canopy cover and soil moisture. Preliminary data show population changes over time and changes in the percent of individuals that flower each year, with a highly variable number of seedlings produced each year. Survival of adult plants is high, while seedling survival is a potential focus for management. A better understanding of how environmental drivers influence population growth rates can lead to management recommendations for conservation of plant species-at-risk.


  • Wednesday, February 14, 2024 - 7:00 PM 8:00 PM


  • The presentation will be held at the Helen Schuler Nature Centre community room, located in the Lethbridge river valley at the north end of Indian Battle Road South.

Furthermore, Nature Lethbridge is offering to join this event via zoom.

Please use the following link to access the presentation:

For more information, visit Nature Lethbridge's Upcoming Events.