| Impact ID |
Scientific Name
|
Impact Type
|
Study Type
|
Study Location
|
Impact Description
|
Geographic Location
|
Reference
|
|
8993
|
Rhamnus frangula
|
Competition
|
Observational
|
Field
|
In Gavin Bog, Illinois, Rhamnus frangula (glossy buckthorn) has displaced Ilex verticillata, a native species to the Great Lakes.
|
Prairie Nature Preserve, Lake County, Illinois
|
25485
|
|
8994
|
Rhamnus frangula
|
Competition
|
Anecdotal
|
N/A
|
Rhamnus frangula (glossy buckthorn) leafs out early in spring and retains its leaves late into the fall.
|
|
25442
|
|
8995
|
Rhamnus frangula
|
Competition
|
Anecdotal
|
N/A
|
The leaves of Rhamnus frangula (glossy buckthorn) remain photosynthetically active until they senesce from the plant, allowing glossy buckthorn to outcompete native trees, shrubs, and wildflowers for light.
|
|
25454
|
|
8996
|
Rhamnus frangula
|
Competition
|
Anecdotal
|
N/A
|
The extensive root system of Rhamnus frangula (glossy buckthorn) allows it to out-compete native plants for nutrients and water.
|
|
25442
|
|
8997
|
Rhamnus frangula
|
Competition
|
Anecdotal
|
N/A
|
Rhamnus frangula (glossy buckthorn) may be a competitive threat to two endangered Rhamnus spp. in the Great Lakes: Rhamnus alnifolia (alderleaf buckthorn; endangered in Illinois) and Rhamnus lanceolata (lanceleaf buckthorn; endangered in Pennsylvania).
|
|
24926
|