Leave What You Find
Invasive species can spread many different interesting ways.
Participants will understand different ways to accidentally help invasive species spread.
Participants will be able to:
- prevent personal distribution of foreign plants
- identify ways invasive species spread
- pieces of common fabric from old clothes - flannel, nylon pants, fleece, raincoat
- gallon ziploc baggie of cockleburrs
- ziploc of grass seeds
- ziploc of any other plant seeds that stick to clothing
- Crossing a high pass from one valley to the next can offer a view of a much different landscape.
- If the same plants take over every location, it all looks the same.
- Have participants team up into 2s or 3s.
- Give each small team a different piece of cloth.
- Pass the baggie of burrs around and have each team dip their cloth in, shake it, and pull it out. What happens?
- Which fabrics collected the most burrs?
- Try the same thing with the bag of grass seed or other seeds.
- What does this tell us about our choice of fabric for outdoors wear? (nylon and smoother materials collect less material)
- When would we be most likely to gather hitch-hikers such as burrs? (off-trail hiking) So, how can we minimize our impact? (stay on trails)
- If we do get seeds stuck to clothes or in our cuffs or on our pets, when should they be removed? (before traveling any further)
- Wearing clothes without cuffs also helps a bit. How else might we accidentally transport seeds? (in boot treads, in tent, in food)