final exam Flashcards
anything gone over after exam4
extinction
the death of the last member of a species
inbreeding depression
a genetic phenomenon in which individuals with similar genotypes breed with each other and produce offspring with an impaired ability to survive and reproduce
endangered
at serious risk of extinction
native species
a species that lives in a historical range, typically where it has lived for thousands or millions of years
alien/exotic species
a species living outside its historical range
alien/exotic species
a species living outside its historical range
invasive species
a species that spreads rapidly across large areas
CITES
stands for Convention on International Trade in Endangered Species of Wild Fauna and Flora; a global agreement among governments to regulate or ban international trade in species under threat
red list
a list of worldwide threatened species maintained by the International Union for Conservation of Nature
edge habitat
a habitat that occurs where two different communities come together, typically forming an abrupt transition
biosphere reserve
a protected area consisting of zones that vary in the amount of permissible human impact
sixth mass extinction: list four symptoms/factors of this
- genetic diversity loss in wild organisms
- genetic diversity loss in crops and livestock
- global species decline in species diversity
- global decline in ecosystem function
define anthropocene
the current geological age, viewed as the period during which human activity has been the dominant influence on climate and the environment
what are the cause of decline (HIPPCO)
H- habitat loss
I- invasive species
P- (human) population growth
P- pollution
C- climate change
O- overharvesting
habitat loss due to…
humans: habitat removal such as clear-cutting, degrading habitats through pollution and climate change, and habitat fragmentation (too few, too far apart)