Invasive Species Flashcards
Native Species
a species that, other than as a result of an introduction, historically occurred or currently occurs in that ecosystem
Alien(Exotic/non-native species)q
any species, including its seeds, eggs, spores, or other biological material capable of propagating that species, that is not native to the ecosystem
Introduction
the intentional or unintentional escape, release, dissemination, or placement of a species into an ecosystem as a result of human activity
Invasive Species
means and exotic/alien species whose introduction does or is likely to cause economic or environmental harm or harm to human health
Feral species
animals or plants that were at one time domestic that have been released or escaped and now survive in a more wild state
Unintentional
Pets released/escaped ships/recreational boats wood travel recreation
Intentional
Agriculture
Hunting
Make feel more like home
Biological
Why do they invade?
r-selected Generalists, easily adapt Natural selection pressures/evolutionary processes missing Disturbed or degraded habitat Not always invasive but often
Lacy Act 1900
Unlawful to trade fish, wildlife, or plants that are illegally taken.
Injurious wildlife designation - animals injurious to interests of humans, agriculture, forestry, horticulture, wildlife…
Legislation
USDA - Animal and Plant Health Inspection Service
National Environmental Policy Act of 1969
Nonindigenous Aquatic Nuisance Prevention and Control Act of 1990
Federal Plant Pest Act of 1957
Federal Noxious Weed Act of 1974
Endangered Species Act of 1973
Invasive Species council Executive Order 1999
Who manages?
USFWS NMFS USDA State, county, local, NGOs Everyone's problem
Top ten invasives
Asian carp killer bees rabbits starlings cane toads northern snakehead kudzu zebra mussels grey squirrels Burmese python
What to do
mechanical control chemical control education/awareness legal control/regulations biological control Integrated pest management
Biological control for insects
control of invasive plants and insects by insects quite safe and often effective
