Table 2.
Location of study sites in North America and the species present
| State |
Site |
Species |
Abbreviation |
Latitude |
Longitude |
|---|---|---|---|---|---|
| Massachusetts | Field Farm | L. salicaria | FFA | 42°42′43″N | 73°12′15″W |
| Sheffield | L. alatum | SHE | 42°06′37″N | 73°21′20″W | |
| West Pittsfield | L. salicaria | WPI | 42°25′51″N | 73°18′37″W | |
| Michigan | Crow Island St. Game Area | L. salicaria | CIA | 43°28′11″N | 83°54′14″W |
| Harsen's Island | L. alatum | HIA | 42°35′22″N | 82°35′19″W | |
| Harsen's Island | L. salicaria | HIS | 42°35′22″N | 82°35′19″W | |
| Lake Lansing | L. salicaria | LLA | 42°44′59″N | 84°24′02″W | |
| Quanicassee Wildlife Area A | L. salicaria | QWA | 43°35′00″N | 83°40′51″W | |
| Quanicassee Wildlife Area B | L. salicaria | QWB | 43°35′00″N | 83°40′51″W | |
| Rose Island Railroad | L. alatum | RIR | 43°46′58″N | 83°25′53″W | |
| Sheep Farm | L. alatum | SFA | 43°39′13″N | 83°27′58″W | |
| Sheep Farm | L. salicaria | SFS | 43°39′13″N | 83°27′58″W | |
| Shiawassee R. St. Game Area | L. salicaria | SRA | 43°23′13″N | 83°57′58″W | |
| Wildfowl Bay | L. alatum | WFB | 43°53′00″N | 83°22′00″W | |
| Ohio | Kildeer | Mixed | KIW | 41°02′39″N | 83°39′00″W |
| Kitty Todd A | L. alatum | KTA | 41°34′46″N | 83°37′02″W | |
| Kitty Todd B | L. alatum | KTB | 41°34′46″N | 83°37′02″W | |
| Ottawa Natl Wildlife Refuge | Mixed | ONW | 41°36′56″N | 83°12′58″W | |
| Wisconsin | Bark River | L. salicaria | BRI | 43°04′50″N | 88°15′40″W |
| Duck Creek | L. salicaria | DCR | 44°33′43″N | 88°04′09″W | |
| Herbarium Preserve | L. alatum | HPR | 43°04′53″N | 88°54′42″W | |
| Janesville | L. alatum | JAN | 42°40′58″N | 89°01′07″W | |
| Nature Conservancy | L. alatum | NCO | 42°30′44″N | 87°48′33″W | |
| Senior Citizen Center | L. salicaria | SCC | 42°54′38″N | 87°51′38″W | |
| Tichigan Lake | Mixed | TLW | 42°49′44″N | 88°11′51″W | |
| Wee Know School | L. salicaria | WKS | 43°06′18″N | 88°20′31″W |