INVASIVE SPECIES PULL

June 2022

By volunteering to help pull out garlic mustards and clip dog-strangling vines at this event, you are helping to save numerous habitats, the surrounding wildlife, and our native plants! Take initiative and help out the Earth!

Every bit matters!

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What are Invasive Species?

-     Invasive species are non-native organisms that are introduced to new environments. Because of this, they have no natural predators to limit their spread

-    As a result, these species cause harm to the environment, the economy as well as human, animal, and plant health.

Why does it matter?

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-    Invasive species tend to spread quickly and threaten native plants that are important to our ecosystems

-    Not all non-native species are invasive. Species are considered invasive if they harm the environment and prey on native species.

-    Invasive species affect the natural processes of native species causing resource competition and territory changes.

-    The spread of these species depends on the resources they receive in their new territory.

-    This causes a big loss in biodiversity and impacts the processes in the overall ecosystem.

Why should you care?

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-    Invasive species impact our daily lives by threatening our health, culture and connection with the environment which is why it is so important.

-    They impact human health by exposing new diseases and being vessels for other diseases.

-    Its economic impact includes research, agriculture, fisheries, job losses, trades, recreations, and more.

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Garlic Mustard - An Invasive Species

-    FIRST YEAR: It grows its basal rosette of low-growing leaves

-    MAY OF SECOND YEAR: It grows its flowering sta;l reaching a height of 1 meter

-    Garlic Mustards spread through seedpods called siliques in JULE and AUGUST

-    They grow in a wide range of soils but prefer calcareous-based ones.

* Garlic Mustards are biennial plants *

IMPACT:

-    It was brought as a source of food and medicine in the 1800s but quickly spread out of control of cultivators in Ontario.

-    They release chemicals such as cyanide that alter the chemistry of the soil which overall impacts the growth of other species

-    Livestock that consumes garlic mustards affect products such as milk that end up with garlic flavour.

HISTORY OF GARLIC MUSTARDS:

-    1800: Garlic Mustards were first introduced to North America from Europe as an edible herb.

-    1879: First record of garlic mustards in Ontario.

-    1891 - 1898: Found in Kingston and Ottawa.

-    1900: Garlic Mustard continued to propagate until it has become an invasive herb today.

Dog Strangling Vine - An Invasive Species

WHAT IS THE DOG STRANGLING VINE?

-    Dog-strangling vines are perennial plants, meaning that they live for more than 2 years.

-    These vines can grow up to 2 meters long by wrapping or "strangling" nearby trees and plants.

-    They often grow in sunny areas but can also be found under light shade.

WHY IS IT AN INVASIVE SPECIES?

-    The dog-strangling vine does not actually strangle dogs! The name comes from its Greek origin.

-    Similar to garlic mustards, dog-strangling vines were introduced to North America in the 1800s from Eastern         Europe.

-    It was introduced as an ornamental plant for the early settlers.

-    They are an invasive species because they release allelopathic chemicals that block sunlight for small plants.

-    Therefore, dense clusters of dog-strangling vines create a negative change in habitat for wildlife.

-    Dog-strangling vines also endanger native insects such as monarch butterflies because these butterflies             mistake the dog-strangling vine for milkweed and lay their eggs on it, only for them to starve.

HISTORY OF THE DOG STRANGLING VINE:

-    THE MID-1800s: The dog-strangling vine is first introduced to North America from Eastern Europe as an               ornamental plant.

-    1897: First record of the dog-strangling vine in the United States.

-    THE 1900s: Dog-Strangling vines spread to southern Ontario.

-    PRESENT: The dog-strangling vine continues to expand its range and spreads to southern parts of Quebec.

PERSONAL IMPACTS:

-->    Spend a fun day with other passionate individuals.

-->    Make new friends and get engaged in your community.

-->    Earn volunteer hours for community involvement.

-->    Win amazing prizes!

-->    Have fun in the outdoors.

-->    Make a positive difference in your community.

COMMUNITY IMPACTS:

-->    Save habitats from detrimental invasive species.

-->    Prevent the growth of garlic mustards by pulling them out before their seed-spreading                       season.

-->    Prevent the growth of dog-strangling vines and help preserve and advocate for our                             environment, biodiversity as well as native ecosystems!

-->   Support your community and wildlife - garlic mustard is known to produce                                                 glucosinolates, a class of chemicals toxic to animals and humans.