Skip to main content

White Iron Chain Of Lakes Association

News & Updates Blog

Webinar: Non-native Invasive Earthworms 101: From the Nightcrawler to the Jumping Worm

Topic :Non-native Invasive Earthworms 101: From the Nightcrawler to the Jumping Worm

When:Mar 17, 2021 01:00 PM in Central Time (US and Canada)

Presented by Ryan Hueffmeier, Director of the Boulder Lake ELC at the University of Minnesota

Abstract: Through this presentation we will discuss what makes most earthworms invasive species in North America. We will start the discussion with European earthworms (Nightcrawlers are an example) and how they got here, what their impacts are and what we can do. We will then move to Asian earthworms (Jumping worms are an example) the latest invasive worm to arrive in the region. Found in garden beds, mulch and compost piles they represent a threat to the health of our managed and wild landscapes. We will learn how to identify the differences between the two groups and how you can participate in documenting them across the landscape.

Speaker Bio: Ryan Hueffmeier is a research, outreach, and education specialist with active projects in forest and landscape ecology and invasive species. He is the Program Director at Boulder Lake Environmental Learning Center in Duluth, MN (, which runs programs for over 4,000 people and has over 10,500 visitors annually. He works towards the transfer of scientific knowledge from evidence-based research to the public through creating accessible outreach programs; by delivering experiential based educational opportunities; and incorporating volunteer based public participatory projects. He works with diverse audiences such as teacher and natural resource professional development, preK-12 and the general public. For the past decade Ryan has been part of the Great Lakes Worm Watch ( and Jumping worm ( programs and has developed local projects looking at vernal pools, bird populations, invasive species and tree survival.

Register here.

Stay Informed

When you subscribe to the blog, we will send you an e-mail when there are new updates on the site so you wouldn't miss them.