| Impact ID |
Scientific Name
|
Impact Type
|
Study Type
|
Study Location
|
Impact Description
|
Geographic Location
|
Reference
|
|
3392
|
Myriophyllum spicatum
|
Commerce
|
Observational
|
N/A
|
Presence of Myriophyllum spicatum in lakes reduces the likelihood of land development near those lakes.
|
|
33942
|
|
3397
|
Myriophyllum spicatum
|
Commerce
|
Observational
|
N/A
|
Myriophyllum spicatum in lakes can decrease property values of lakeside homes by <1% to 16% as coverage increases.
|
|
33943
|
|
8743
|
Myriophyllum spicatum
|
Commerce
|
Anecdotal
|
N/A
|
Given the reduction in recreational access and aesthetics associated with large, obstructive populations of Myriophyllum spicatum (Eurasian watermilfoil), the values of nearby property could decline.
|
|
35275
|
|
8744
|
Myriophyllum spicatum
|
Commerce
|
Anecdotal
|
N/A
|
According to an economic study conducted in New Hampshire, the value of property adjacent to waterbodies with large submerged aquatic plants, such as Myriophyllum spicatum (Eurasian watermilfoil), was reduced by 15% or more.
|
New Hampshire, USA
|
42515
|
|
9308
|
Myriophyllum spicatum
|
Commerce
|
Observational
|
Field
|
In the United States, Myriophyllum spicatum grows in dense stands which decreases lakeshore property values.
|
USA
|
42811
|
|
10069
|
Myriophyllum spicatum
|
Commerce
|
Observational
|
Field
|
A study of property values from 1248 lakeshore homes in King County, Washington found a significant decrease in mean property value of 19% ($94,385) in homes that had Myriophyllum spicatum in nearby waters.
|
King County, Washington
|
38024
|
|
10070
|
Myriophyllum spicatum
|
Commerce
|
Observational
|
Field
|
property values in northern Idaho were negatively associated with the presence of Myriophyllum spicatum and with decreased Secchi depth readings. Mean property values were expected to decrease by 13% ($64,255) on homes with these associations.
|
Coeur d’Alene Lake, Idaho
|
46029
|