Catalog Record

Report from S&T project number 8110: Using constrained gravity models at large spatial scales to simulate invasive species colonization

Invasive dreissenid mussels pose a threat to both Reclamation facilities and the environment. Predicting the future dispersal patterns of the dreissenid mussels is important because it can help predict waterbodies at greatest risk of colonization. The dreissenid mussel model described here uses a combination of constrained gravity model equations, habitat suitability equations, and a user defined variable for mussel transport survival. Calcium and pH data from 402 waterbodies in the Western US were incorporated into the model. The model indicates that implementing a buffer zone greatly decreases the probability of waterbodies becoming infested. This model can be used to determine which waterbodies are at highest risk for dreissenid mussel invasion, given the assumptions within the model. Agencies can use the results from the model to determine what steps need to be taken to either ensure that a particular waterbody does not become infested, such as increased boat inspections and monitoring of the waterbody.
Generation Effort S&T Project 8110: Using Constrained Gravity Models at Large Spatial Scales to Simulate Invasive Species Colonization
Location Western US
Themes Water Quality, Biological
Tags Quagga Mussels, Ecological Modeling, Dreissenid Mussel, Constrained Gravity Model
Reclamation Project
Reclamation Program Science and Technology Program

Location Information

Location Name Western US
Location Description The 17 western states of Washington, Oregon, Idaho, Montana, North Dakota, South Dakota, Nebraska, Wyoming, California, Nevada, Utah, Colorado, Kansas, Oklahoma, Texas, New Mexico, and Arizona..
Location Tags Reclamation Domain
Location Parent
State(s) Arizona, California, Colorado, Idaho, Kansas, Montana, North Dakota, Nebraska, New Mexico, Nevada, Oklahoma, Oregon, South Dakota, Texas, Utah, Washington, Wyoming
Unified Region(s) Missouri Basin, Arkansas-Rio Grande-Texas-Gulf, Upper Colorado Basin, Lower Colorado Basin, Columbia-Pacific Northwest, California-Great Basin
Timezone MT
Elevation [ N/A ]
Vertical Datum NAVD88
Coordinates (lat, long) See Location Details
Horizontal Datum WGS84