Invasive Species Invasive Species What is an Invasive

Invasive Species

Invasive Species What is an “Invasive Species”? means an alien species whose introduction causes economic or environmental harm or harm to human health.

Invasive Species What is an “Alien Species”? means a species that is not native to an area. A. K. A. exotic, invasive, foreign, non-indigenous

Invasive Species What is an “Established Species”? Established is a species that has a secure place in an ecosystem, not in danger of being removed.

Invasive Species What does Eradicate mean? Eradicate is to wipe out an entire population

Invasive Species Biological control vs Chemical control. Biological control Using other “biologicals” Living things to control yhe spread of a species Chemical control Using chemicals to control the spread of a species

Generalist vs Specialist in Biological Control A specialist is a species that will only eat the target species A generalist is an animal that is meant to eat the target species but can eat any. VERY dangerous. These generalist can become an invasive species

Generalist vs Specialist in Biological Control http: //www. youtube. com/watch? v=Rg 68 Kxd. Kv. J 4

Most Famous Invasive Species Brown Tree Snake Caulerpa Asian Longhorn Beetle Gypsy Moth Zebra Mussel Starlings Mongoose Nile Perch

Most Famous Invasive Species Aspergillus Asian Carp Emerald Ash Borer Buckthorn DIRTY DOZEN

Why are invasive species so successful (4 reasons)? No Natural Control!!!!

Why are invasive species so successful? Outcompete Native species

Why are invasive species so successful? Have a trait that the native species don't have!

Why are invasive species so successful? Fill an open niche.

Why is Buckthorn such a problem? Longer growing season than our native plants (6 -8 weeks) – grows more Thorns for protection Leaves full of a laxative Secretes nitrates in soil Beautiful/tasty berries that birds eat and disperse seeds