Wetland and Aquatic Research Center

Invasive Species

Research, monitoring, and technology development for containment or eradication of non-indigenous species that have potential to cause significant ecologic or economic damage and those that impact human health. Scientists test and develop methods to better detect invasive species, determine the likelihood of their spread and impact, report distribution to track their spread, methods to contain and control harmful invasive species, as well as means to restore ecosystems after control efforts. Recent emphasis has been on using advanced technologies such as remote sensing and genetics methods to develop species-specific detection and control tools for terrestrial and aquatic species, with recent focus on Asian carp, sea lamprey, and snakes. Includes studies on ecologic impacts, invasion biology, and basic life history to help determine risk and develop control strategies.
Filter Total Items: 60
Date published: April 8, 2016
Status: Active

Developing Detection Probabilities and Quantifying the Effects of Flowing Water to Improve Asian Carp Environmental DNA (eDNA) Surveys

Invasive Asian carp are problematic for native species, and managers are implementing control measures without well-quantified detection limits or a means to assess the accuracy and precision of existing or future survey data for the fish. Environmental DNA - eDNA - is already used to detect the presence of invasive species, and can be used to identify locations to focus carp control efforts...

Date published: April 6, 2016
Status: Active

Efficacy of eDNA as an Early Detection and Rapid Response Indicator for Burmese Pythons in the Northern Greater Everglades Ecosystem

Traditional approaches to locating Burmese pythons - including visual searches and trapping - have resulted in low detection. Environmental DNA - or eDNA - is increasingly being used to detect the presence of non-native species, particularly when traditional methods may not be adequate. 

Date published: April 6, 2016
Status: Active

Genetic Analysis of the Invasive Burmese Python to Aid Management and Population-Control Decision-Making

Invasive Burmese pythons threaten the success of Everglades restoration efforts. To assist with management and population control decision making, USGS scientists are implementing genetic studies to identify potential new entry pathways and to help quantify the size of the breeding population.

Date published: April 5, 2016
Status: Active

Genetic Analysis of Wild and Captive Black Carp in the Mississippi River Basin

Black carp have likely been present in the Mississippi River since the 1990s, but their current distribution and spread is not well understood. Genetics is helping to shed light on this species, including its diversity, the relatedness of wild and captive fish, and its introduction history. 

Date published: March 30, 2016
Status: Active

Evaluation of Tegu Movements and Habitat Use in Relation to Location and Habitat

Tegus are breeding, they have a diverse diet, and they are established in areas throughout South Florida. USGS is tracking this problematic reptile species to better understand their movements and habitat use to help managers prevent dispersal into new areas.

Date published: March 22, 2016
Status: Active

Nonindigenous Aquatic Species Database and Website (NAS)

Nonindigenous - non-native - species threaten biodiversity, but the distribution of these species is not well-known. The Nonindigenous Aquatic Species (NAS) database tracks occurrence data on non-native aquatic plant and animal species throughout the United States, and provides the public with species profiles, distribution maps, and online/real-time queries for state/hydrologic basin-...

Date published: March 17, 2016
Status: Active

Using Environmental DNA for Burmese Python Detection Probabilities and Range-Delimitation in Southern Florida

Current tools for detection of Burmese pythons in South Florida have resulted in low detection rates. Environmental DNA - eDNA - has shown to be effective at detecting these invasive snakes, and can help to determine range limits for the species, information that is critical for management and control efforts. 

Date published: February 26, 2016

Mechanisms of Aquatic Species Invasions across the South Atlantic Landscape Conservation Cooperative (SALCC)

USGS scientists study the mechanisms of aquatic species invasions across the South Atlantic Landscape Conservation Cooperative (SALCC) with the help of the Nonindigenous Aquatic Species Database (NAS).

Date published: February 26, 2016
Status: Active

Ecology of and Control Strategies for Invasive Burmese Pythons (Python molurus bivitattus) in the Greater Everglades

Telemetry tracking of captured pythons reveals movement patterns of the invasive Burmese python in the Greater Everglades, information that managers can use to prioritize python control efforts.

Date published: November 3, 2015
Status: Completed

Fish Slam 2015

November 3, 2015 – Five teams of fishery biologists from the U.S. Geological Survey (USGS), U.S. Fish and Wildlife Service (USFWS), Florida Fish and Wildlife Conservation Commission (FWC), the National Park Service (NPS), and Florida International University (FIU) sampled for non-native fishes in canals, ponds and ditches in and around the Plantation/Davie area of Broward County, FL.

Date published: November 14, 2014
Status: Completed

Fish Slam 2014

On November 20, 2014, eight teams of fishery biologists from the U.S. Geological Survey (USGS), U.S. Fish and Wildlife Service (USFWS), Florida Fish and Wildlife Conservation Commission (FWC), U.S. National Park Service (NPS), and Florida International University (FIU) gathered for a one-day sampling event to collect non-native fishes from canals, ponds and ditches in Miami-Dade County, FL....

Date published: April 17, 2013
Status: Completed

Coping with Invasive Alien Species and Environmental Stressors: Linking Behavioral Studies with Management for Anuran Amphibians

Climate change and invasive species are two key drivers of biodiversity loss. Knowing how amphibians respond to climate change and invasive species can greatly improve predictions of species' persistence in the face of these factors and can help guide resource managers and conservation biologists in developing strategies to manage for these encroaching disturbances.