Chapter 14 Flashcards
Why are parks not effective to protect endangered species?
Roads -attract animals to live there and develop nests
extrinsic values
in the case of biodiversity, adding a price biased of exports and imports of products. humans dervise this from species
intrinsic value
nature has value itself apart from humanity
extirpated
eliminated from only one are of its range
ecological extinct
such low numbers, it can’t fill its role in the ecosystem (martime mountan lioN)
ethical values
humans have no right to destroy species-> responsibility to protect
Net primary productivity,
n other words, it’s the rate at which energy is stored as biomass by plants or other primary producers and made available to the consumers in the ecosystem.
predator control
humans kill species cus they compete with human recourses -> parrot killed fro eating all that fruit, leaders to repercautins in the food web
ex situ conservation
breeding in captivity than relased to wild
habitat change
the biggest factor causing biodiversity depletion
- agriculture is biggest impact on depleting forest populations
- focus on water & land
Prairie/wetland agriculture
through introdution of cattle, competes with all that bison and plants
-half of cnd endangered species are prairie species
wetland
drains wetlands for agriculture -> loss of habitat
fragmentation
dec in birds that comes to cnd to bread->deforestation of their habitat
hybrids
due to humans, they are occurring more frequently -> infertile
Pollution
second more cause of endangerment for freshwater species
-pop declines go unnoticed for years