| Impact ID |
Scientific Name
|
Impact Type
|
Study Type
|
Study Location
|
Impact Description
|
Geographic Location
|
Reference
|
|
8099
|
Juncus gerardii
|
Competition
|
Observational
|
Field
|
Juncus gerardii cannot invade areas with existing vegetation or dense litter.
|
Bothnian Sea, Finland
|
25691
|
|
8100
|
Juncus gerardii
|
Competition
|
Observational
|
Field
|
Juncus gerardii seedlings also have little resistance to burial by wrack (floating plant material). Significant amounts can lead to burial and ultimately seedling death.
|
Rumstick Cove salt marsh, Barrington, Rhode Island, USA
|
25698
|
|
8101
|
Juncus gerardii
|
Competition
|
Experimental
|
Laboratory
|
For these reasons, black-grass rush (Juncus gerardii) becomes established in the first stages of succession after a disturbance.
|
|
25685
|
|
8102
|
Juncus gerardii
|
Competition
|
Observational
|
Field
|
Once established, black-grass rush (Juncus gerardii) can dominate terrestrial borders of high marshes and displace native species, such as Spartina patens.
|
Rumstick Cove salt marsh, Barrington, Rhode Island, USA
|
25683
|
|
8186
|
Juncus gerardii
|
Competition
|
Anecdotal
|
N/A
|
Juncus gerardii poses a competitive threat to the native and naturalized Juncus spp. in the Great Lakes.
|
|
25196
|