NON-NATIVE AND INVASIVE ANIMALS OF ALASKA In recent years, a number of non-native animal species have been observed in Alaska, some of which have proven to be invasive.  Invasive species threaten native ecosystem integrity and Alaska’s valuable resources in fisheries, tourism, forestry, and agriculture by the alteration and loss of natural species biodiversity and ecosystem functions.  gypsy moth larva Lymantria dispar northern pike Esox lucius Norway rat Rattus norvegicus In an effort to provide managers with the most up-to-date information regarding invasive animal species in Alaska, we compiled a comprehensive list of non-native animals that have been documented in the state, and also developed a list of potential future invaders based on their occurrence in neighboring states and/or provinces.  We collected published and unpublished information on a number of non-native animal species that are known to pose a high risk to native ecosystems, and summarized information on their biology, modes of dispersal, documented impacts, control options, and current and historic distribution.  A total of 116 non-native animal species (including fishes, amphibians, reptiles, birds, mammals, invertebrates, parasites and pathogens) were documented as present (either historically or currently) in Alaska, and an additional 41 species were identified as potential invaders to the state.  We developed current distribution maps and status reports describing the biology and invasive potential of 17 of the highly invasive species listed.  Click here to view this project’s Final Report, containing the comprehensive species list, status reports, and distribution maps.