FWF 250 1st Edition Lecture 19Outline of Last Lecture I. Snake IdentificationOutline of Current Lecture I. Nonnative Invasive SpeciesCurrent Lecture Nonnative Invasive Species- A nonnative invasive species is an alien species whose introduction does or is likely to cause economic and environmental harm or harm to humans.- Their origins are from human activities, either intentional or accidental.- These species impact agricultural productivity, property values, public utility operations, natural ecosystem functions, outcompete native species, tourism, outdoor recreation, and quality of life.- This is the leading cause of population decline and extinction in animals.- It costs the United States about $120 billion in damages each year.- There are invasive species management teams who combat these species on a priority-based system.- Invasive species often provide a “first job” opportunity for students in natural resources conservation.- American Chestnut o Native but now extincto “Redwood of the East”o Region was from Maine to Alabamao 1 in 4 forest trees in the 1900s was an American Chestnuto On average, they were about 4 foot in diameter.o They produced 6,000 small chestnuts per year.o Rot resistanto Bloomed in June- Chestnut Blighto Fungus = Cryphonectria parasiticao Orange swollen or sunken cankers on the American Chestnuts. Plants- Kudzuo It can spread 60 feet per season (about 12 inches per day).These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is bestused as a supplement to your own notes, not as a substitute.- Oriental Bittersweeto People use them for wreaths.- Chinese Silvergrasso Likes fireo Apply herbicideso Can grow without sunshine- Cogongrasso In the deep South, not in TNo Used as packing products- Japanese Knotweed- Chinese Tallowtreeo Popcorn treeo Tallow honey from bees- Autumn Oliveo Intentional introductiono Produces fruit- Chinese Priveto Produces fruit- Multiflora Roseo Planted as a livestock fenceo Habitat for rabbitso Kill by fire, herbicides, and goats- Sericea lespedezao Introduced by the Department of Transportation- Water hyancinth o Manatees eat them.- Hydrillao #1 water invasive species in TN- Eurasian Watermilfoil- Bush honeysuckleso Lie on the understory of forests- Japanese stilt grass (Microstegium)o Can grow in shade- Tree of Heaven- Royal paulowniao Prolific seeder transported by wind- Mimosa- English Ivyo Can take paint off of houseso Tough to fight- Japanese climbing fernThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.o Deep South- Didymoo Rock snoto Waders (shoes) are being banned to stop the spread of didymo. Insects- Gypsy motho Eat oak trees Animals- Starlings o Brought over because of Shakespeare’s birdso Nest in den siteso Cause histoplasmosis- House/English Sparrowo Nests in structureso Take over bluebird nests and kill them- Feral hogso Breed at 6 months of ageo 2 litters/yearo Average of 6 piglets per littero Can have as many as 16 piglets in one littero Eat anythingo Compete with other wildlifeo Can be found near watero Impact agriculture and farmerso They destroy the soilThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a