Invasive species pose some serious threats. They can displace native fish and wildlife and change native habitats, harming fish, wildlife and plant resources. Invasive species can also pose a risk to human health. In 2012, the Service worked to reduce the impacts that invasive species are having across the Northeast Region. A few projects that we worked on this year:
|The first collection of hydrilla verticillata|
in Tonowanda Creek. Credit: USFWS
|Galerucella beetles helped control invasive purple loosestrife in seven Northeast states in 2012.|
Credit: Katrina Scheiner
At the Eastern Massachusetts National Wildlife Refuge Complex, biologists reared between 17,000 and 33,000 Galerucella beetles to control purple loosestrife (Lythrum salicaria), an invasive wetland plant. The beetles feed on the leaves of purple loosestrife and reduce the growth and reproduction of the invasive plant. Purple loosestrife can lead to a decrease in plant diversity, resulting in a loss of wildlife diversity. Working with state partners and other organizations, Galerucella beetles were also released in six other Northeast states, including New Jersey, where the beetles were released in bog turtle wetlands.
|Sea lamprey wound on an Atlantic salmon.|
Learn more about invasive species