Invasive Species

Question 1

six primary causes of biodiversity loss

Answer 1

1. pollution
2. habitat loss
3. overexploitation
4. invasive species
5. disease
6. climate change

Question 2

Native species

Answer 2

species with a long-term evolutionary history within a place

Question 3

exotic (non-native)

Answer 3

species without a long term evolutionary history within a place (from somewhere else), that was transported there by human intervention

Question 4

weed

Answer 4

native or exotic species of disdain

Question 5

invasive species

Answer 5

exotic species that negatively impacts the systems they invade (economically, environmentally, and/or ecologically)

Question 6

general model of establishment

Answer 6

regional species pool -> biogeographical filter -> physiological filter - biotic filter -> local assemblage

Question 7

globalization facilitates the movement of species

Answer 7

annual spending on the management of invasive species in the USA is $120 billion

Question 8

Biological impacts of invasive species

Answer 8

Ecosystems
a. Altered disturbance regimes (fire, defoliation)
b. altered hydrology)
c. altered soil chemistry
d. geomorphological processes
e. altered nutrient cycling

Communities and Populations
a. habitat structure

Question 9

Examples of PA concern

Answer 9

spotted lanternfly, emerald ash borer, mile-a-minute, gypsy moth

Question 10

Eradication options

Answer 10

mechanical control, chemical control, biological control

Question 11

What makes an invasive species an invasive species?

Answer 11

it depends, or we dont know, but we have some hypothesis: biotic resistance, island susceptibility, invasion meltdown, novel weapons, enemy release, tens rule