Northwest Michigan Habitat Matters Natures Vast Unseen World Doubletoothed prominent Nerice bidentata on an elm leaf Carol Groves Pandorus sphinx moth Eumorpha pandorus ID: 611402
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Slide1
Invasive Species in
Northwest MichiganSlide2
Habitat MattersSlide3Slide4
Nature’s Vast, Unseen World
Double-toothed prominent (
Nerice
bidentata) on an elm leaf.
Carol Groves
Pandorus
sphinx moth
(
Eumorpha
pandorus
) on a Virginia creeper at Kids Creek Park.
Northern spicebush swallowtail. Hosts: spicebush, sassafras.
Lisa BrownSlide5
Nature’s Vast, Unseen World
Source:
Tallamy
, Doug.
Bringing Nature Home.
Timber Press, 2007.
Woody Plants Ranked by Ability to Support
Butterfly/Moth
Species
Common Name
Genus
Species Supported
oak
Quercus
534
willow
Salix
456
cherry, plum
Prunus
456
birch
Betula
413
elm
Ulmus
213
pine
Pinus
203chestnutCastanea125Slide6
How Long Until “Non-Native” Becomes “Native?”
Invasive
Phragmites
Hosting Capacity of Alien Plants
Introduced to North America
Plant Species
Herbivores
Supported in Homeland
Herbivores
Supported in North America
Years Since Introduction to
North America
Black sally
48 species
1 species
100
Melaleuca
tree
409 species
8 species
120
Indian fig cactus
16 species
0 species
250
Invasive
phragmites
170 species
5 species
300+
Source:
Tallamy, Doug. Bringing Nature Home. Timber Press, 2007.
How long does change take? Slide7
What’s Invasive?
Few natural predators
Native monarch caterpillar eating native milkweed leaf
Massive seed production
Invasive honeysuckle
Non-native
Jake
Hendee
Wolfgang
Meinhart
Frankenstoen
, Bugwood.org
Agriculture and
Agri
-Food Canada Archive, Agriculture and
Agri
-Food Canada, Bugwood.org
Purple loosestrife beetle introduced for
biocontrolSlide8
Source: Michigan Natural Features Inventory
What’s Invasive?
Jörg
Hempel
Saffron Blaze
Environmental harm – a natural area consisting mostly of one or a combination of introduced plants that provide minimal habitat value.
Formal definition – a non-native species that harms people, the environment,
or the economy.
Ellen JacquertSlide9
Imported accidentally
Invasive
Phragmites
John M. Randall, The Nature Conservancy, Bugwood.org
How Do They Get Here?
Imported for food or medicine
Grand Traverse Regional Land Conservancy
Garlic Mustard
Planted to manage soil erosion
Mark Lindsay
Imported for gardens
Buckthorns
Autumn olive Slide10
Japanese knotweed
Polygonum cuspidatum (Fallopia japonica)
Buyabetterhome.co.uk
Traditional uses:
food, medicine.
Bradley
Kriekhaus
, USFS
Randy
Westrbooks
, USGS
Native to Asia
Introduced as an ornamental
Illegal in Michigan
Problems:
Displaces native species
Difficult to control
Can damage property
10-12 feet tall
Often called “Michigan bamboo”Slide11
Garlic Mustard
Alliaria petiolata
Traditional uses:
food, papermaking, animal feed
Katie Grzesiak
Chris Evans
Native to Eurasia
Introduced as a food source
Problems:
Displaces Natives
Competes with tree seedlings
Unpalatable to most native herbivores
Disposal options:
Find a use
Dumpster
TarpingSlide12
Invasive Phragmites
Phragmites australis
Native to Europe
Introduced accidentally
Problems:
Displaces native plants
Decreased property values
Increased fire risk
Can reach up to 15 feet tall
There is a native
phragmitesSlide13
Oriental bittersweetCelastrus
orbiculatus
Traditional uses:
native and introduced versions both used in fall crafts
James H.
MIller
Steve Conaway
Max Williamson
Native to Asia
Introduced as an ornamental
Problems:
Out-competes native American bittersweet
Shades out trees it climbs onSlide14
Other
Inasive Species
Baby's breath (Gypsophila paniculata
)
Flower_mauays_nursery
Japanese Barberry (
Berberis
thunbergii
)
Purple Loosestrife (
Lythrum
salicaria
)
Dame's Rocket (
Hesperis
matronalis
)
Spotted Knapweed (
Centaurea
stoebe)Slide15
Ways to Take ActionReport
(MISIN.msu.edu)Stop the SpreadClean off at trailsDon’t plant invasive ornamentalsSpread the wordPlanting GuideGet Involved – volunteer!