| Impact ID |
Scientific Name
|
Impact Type
|
Study Type
|
Study Location
|
Impact Description
|
Geographic Location
|
Reference
|
|
4579
|
Phalaris arundinacea
|
Competition
|
Observational
|
Field
|
Phalaris arundinacea displaced the native plants Panicum virgatum (Switchgrass), Eragrostis pectinacea (Tufted lovegrass), Persicaria hydropiper (Marsh knotweed), and Vernonia fasciculata (Common ironweed) in the Chippewa River.
|
Chippewa River, Wisconsin, USA
|
36491
|
|
4580
|
Phalaris arundinacea
|
Competition
|
Observational
|
Field
|
Phalaris arundinacea outcompeted the endangered Howellia aquatilis
(Water howellia), replacing it as the dominate canopy cover and prevent seedling growth in the Swan River Oxbow Preserve.
|
Swan River, Lake County, Montatna, USA
|
27597
|
|
4583
|
Phalaris arundinacea
|
Competition
|
Observational
|
Field
|
Phalaris arundinacea has displaced the native vegetation and taken over the outer edges of wetlands in southeastern New Hampshire.
|
Southeastern New Hampshire, USA
|
10370
|
|
4586
|
Phalaris arundinacea
|
Competition
|
Observational
|
Field
|
Phalaris arundinacea replaced most native vegetation and dominated wetland sites, often covering 75-100% of the area in the northern midwest United States.
|
Minnesota, South Dakota, Iowa
|
36917
|
|
4591
|
Phalaris arundinacea
|
Competition
|
Observational
|
Field
|
Phalaris arundinacea outcompetes and replaces native plants.
|
Midwest, USA
|
36928
|
|
4592
|
Phalaris arundinacea
|
Competition
|
Experimental
|
Laboratory
|
Phalaris arundinacea significantly reduces early growth of native perennial species in greenhouse mesocosms.
|
|
36929
|
|
4593
|
Phalaris arundinacea
|
Competition
|
Experimental
|
Laboratory
|
Phalaris arundinacea impedes the growth of the North American native wetland plant Blue Vervain (Verbena hastata) when herbivores are present.
|
|
36930
|
|
4596
|
Phalaris arundinacea
|
Competition
|
Observational
|
Field
|
Species richness was lower in beaver dam habitats when the introduced Phalaris arundinacea was present in Alsea drainage area of the Oregon Coast Range, with one species lost for every 7% increase in Phalaris arundinacea cover.
|
Alsea Drainage, Oregon, USA
|
36918
|
|
4598
|
Phalaris arundinacea
|
Competition
|
Anecdotal
|
N/A
|
Phalaris arundinacea outcompetes native plant species, leading to a loss of plant and insect diversity in systems in which is is introduced.
|
|
27589
|
|
4602
|
Phalaris arundinacea
|
Competition
|
Anecdotal
|
N/A
|
Phalaris arundinacea outcompetes and replaces native plants, forming monotypic stands.
|
North America
|
27590
|
|
4604
|
Phalaris arundinacea
|
Competition
|
Experimental
|
Laboratory
|
Phalaris arundinacea suppressed the growth of native plant communities in mesocosms mimicking restored prairie pothole wetland habitats.
|
|
36929
|
|
4605
|
Phalaris arundinacea
|
Competition
|
Observational
|
Field
|
Phalaris arundinacea replaced wetland plants in Portland, Oregon, creating monotopic stands and changing and dominating the canopy cover in the systems.
|
Portland, OR, USA
|
36923
|
|
4613
|
Phalaris arundinacea
|
Competition
|
Anecdotal
|
N/A
|
Over prolonged periods of establishment, Phalaris arundinacea stands reduce soil amount in seed banks, which become void of all other plant seeds.
|
|
27572
|
|
4618
|
Phalaris arundinacea
|
Competition
|
Experimental
|
Laboratory
|
Phalaris arundinacea outcompeted native plant communities in various mesocosm treatements, particularly when anthropogenic impacts were present.
|
|
27585
|