Invasive Species Program

Filter Total Items: 90
Date published: September 12, 2018
Status: Active

Salmonid Population and Life History Research in Tributary Stream and River Habitats and Response to Dam Removal

Juvenile anadromous salmonids all spend some portion of their lives in freshwater. This time may vary from days to years depending upon species and run. Spring Chinook Salmon and Coho salmon generally spend one year in freshwater and Steelhead may spend up to five years in freshwater prior to beginning their journey to sea. Several projects at WFRC – CRRL are investigating populations, life-...

Contacts: Ian Jezorek
Date published: August 20, 2018
Status: Active

Investigation and Disease Prevention of Spring Viremia of Carp Virus (SVCV)

There has been long history of disease outbreaks and economic losses in wild and farmed carp species due to SVCV. Formerly thought to be restricted to Europe and Asia, SVCV was detected for the first time in North America from diseased koi at a North Carolina fish farm in 2002, and there were extensive eradication efforts with 135,000 fish euthanized in addition to the ~15,000 that died from...

Date published: August 2, 2018
Status: Active

Integrating Science and Management for Optimal Prevention and Control of Invasive Nymphoides in Florida

Two invasive species of floating hearts, Nymphoides cristata and N. indica, are actively managed in Florida. A rare native species, N. humboldtiana, has been found in Florida and verified by molecular methods; this species is nearly indistinguishable from N. indica.

Date published: June 22, 2018
Status: Active

White-Nose Syndrome

Since the winter of 2006-07, millions of North American bats have died from white-nose syndrome (WNS). As of September 2015, bats with WNS were confirmed in 26 states and five Canadian provinces.

White-nose syndrome gets its name from the white fungus, Pseudogymnoascus destructans, which infects the skin on the muzzle, ears, and wings of hibernating bats and was ...

Contacts: Earl Campbell
Date published: June 22, 2018
Status: Active

Avian Malaria

Avian malaria is a mosquito-borne disease of birds caused by a protozoan parasite (Plasmodium relictum). P. relictum reproduces in avian red blood cells. If the parasite load is sufficiently high, the bird loses red blood cells (anemia). Because red blood cells are critical for moving oxygen about the body, loss of these cells can lead to progressive weakness and, eventually...

Contacts: Earl Campbell
Date published: June 22, 2018
Status: Active

Rapid ‘Ōhi‘a Death

USGS has been involved in the response to Rapid Ohi’a Death since its detection in 2015, and is part of the multi-organizational Rapid Ohi’a Death Working Group which was formed to share information and coordinate research, resource management and outreach activities.

Contacts: Earl Campbell
Date published: June 21, 2018
Status: Active

Risk Assessment

USGS research focuses on developing and enhancing capabilities to forecast and predict invasive species establishment and spread. Early detection helps resource managers identify and report new invasive species, especially for cryptic species and those in very low abundance, to better assess risks to natural areas. Tracking the establishment and spread of existing and new invasive species is...

Contacts: Earl Campbell
Date published: June 21, 2018
Status: Active

Native Populations

USGS researchers monitor native populations for threats of invading species to improving understanding of the ecology of invaders and factors in resistance of habitats to invasion.

Contacts: Earl Campbell
Date published: June 21, 2018
Status: Active

Best Management Practices

Best management practices (BMPs) can be used to help prevent the spread of invasive species and help mitigate the consequences of invasive species once they have become established. BMPs provide a framework for natural resource managers to follow to effectively deal with, and prevent the spread of, invasive species.

Contacts: Earl Campbell
Date published: June 20, 2018
Status: Active

Species Reintroduction

The USGS develops strategies and techniques to understand and facilitate restoration of native species and habitats affected by invasive species.  This is critical because control without restoration can leave the ecosystem vulnerable to subsequent reinvasion by the same or additional invasive species.  

Contacts: Earl Campbell
Date published: June 20, 2018
Status: Active

Habitat Restoration

The USGS develops strategies and techniques to understand and facilitate restoration of native species and habitats affected by invasive species. This is critical because control without restoration can leave the ecosystem vulnerable to subsequent reinvasion by the same or additional invasive species.The USGS develops strategies and techniques to understand and facilitate restoration of native...

Contacts: Earl Campbell
Date published: June 20, 2018
Status: Active

Integrated Pest Management / Adaptive Management

A focus of USGS research is to integrate control strategies where applicable to empower land and water
managers to respond rapidly to a wide variety of new invasions across the United States.

Contacts: Earl Campbell