Impact ID |
Scientific Name
|
Impact Type
|
Study Type
|
Study Location
|
Impact Description
|
Geographic Location
|
Reference
|
2831
|
Pistia stratiotes
|
Competition
|
Experimental
|
Laboratory
|
Pistia stratiotes produces a-asarone, a phenylpropanoid with antialgal properties. The growth of all the algae species examined was severely inhibited by this compound. The marked antialgal activity of a-asarone confirms that the phenylpropanoids may interfere with growth processes in plants
|
|
29731
|
2832
|
Pistia stratiotes
|
Competition
|
Observational
|
Field
|
Dense mats of P. stratiotes can shade out and reduce the amount of light available to submerged macrophytes and planktonic algae
|
|
29732
|
2835
|
Pistia stratiotes
|
Competition
|
Observational
|
Field
|
Three years after P. stratiotes was first observed in Slovenia, a decline in the native freshwater plants Ceratophyllum demersum, Myriophyllum spicatum, Najas marina, and Trapa natans was observed. This was primarily due to the dense mat of P. stratiotes that covered the entire water surface year-round, even during the winter.
|
|
29781
|
2849
|
Pistia stratiotes
|
Competition
|
Experimental
|
Laboratory
|
Pistia stratiotes proved to be strongly competitive, improving growth at the expense of the other competitor species, Lemna minor and Salvinia minima.
|
|
33792
|
2851
|
Pistia stratiotes
|
Competition
|
Experimental
|
Laboratory
|
Competition trials showed that Pistia was very aggressive towards Limnobium causing yield to be greatly reduced in mixed treatments compared to single-species treatments.
|
|
33793
|
7124
|
Pistia stratiotes
|
Competition
|
Observational
|
Field
|
Oxygen and light limitations caused by Pistia stratiotes killed native plants, fish and wildlife.
|
Florida
|
31302
|
7125
|
Pistia stratiotes
|
Competition
|
Anecdotal
|
N/A
|
Oxygen and light limitations caused by P. stratiotes killed native plants, fish and wildlife.
|
|
42134
|
7256
|
Pistia stratiotes
|
Competition
|
Observational
|
Field
|
Water lettuce (Pistia stratiotes) invasion in a oxbow lake on the Sava River, Slovenia outcompeted and reduced macrophyte species abundance. Remaining species were significantly reduced as well.
|
Sava River, Slovenia
|
41788
|
7277
|
Pistia stratiotes
|
Competition
|
Experimental
|
Laboratory
|
Invasive water lettuce (Pistia stratiotes) has inhibitory effects on the growth of epiphtytic algae because its secrets alleochemicals and its biomass blocks sunlight.
|
China
|
41822
|
9590
|
Pistia stratiotes
|
Competition
|
Observational
|
Field
|
In some regions of China, Pistia stratiote have displaced native Ottelia sp. and Nuphar sp..
|
China
|
43180
|