Upgrade to remove ads
Only $2.99/month

APES Ch 9 Vocab pt 2

Terms in this set (36)

background extinction
continuous, low-level extinction of species
extinction rate
percentage or number of species that go extinct within a certain time period
mass extinction
the extinction of many species during a relatively brief period of time
local extinction
a species is no longer found in an area it once inhabited but is still found elsewhere
ecological extinction
so few members of a species remain that it can no longer play its ecological role
biological extinction
a species is no longer found anywhere in the world
endangered species
has so few individual survivors that the species could soon become extinct
threatened species
still abundant in its natural range but is likely to become endangered in the near future
IUCN
International Union for the Conservation of Nature; a coalition of the world's leading conservation groups
instrumental value
a species' usefulness to us in providing many of the ecological and economic services that make up the earth's natural capital
genetic information
allows a species to adapt to changing environmental conditions through evolution
existence value
every species has the right to exist
aesthetic value
beauty, pleasing to the eye
bequest value
people will pay to protect some forms of natural capital for use by future generations
biophilia vs biophobia
love of life vs fear of wildlife
HIPPCO
major explanations/causes of extinctions- habitat destruction, invasive species, population growth, pollution, climate change, over-exploitation
endemic species
especially vulnerable, only found in one place
habitat island
any habitat surrounded by another one
habitat fragmentation
occurs when a habitat is reduced in an area and divided into smaller, more scattered, isolated patches
Kudzu vine
invasive species, imported from Japan in the '30s, planted in the SW US, very prolific and engulfs everything in its path
characteristics of successful invader species
high reproductive rate, pioneer species, long lived, high dispersal rate, generalists, high genetic variability
characteristics of ecosystems vulnerable to invader species
climate similar to habitat of the invader, absence of predators on invading species, early successional systems, low diversity of native species, absence of fire, disturbed by human activities
poaching
endangers many large animals and exotic plants
bush meat
a source of food for indigenous people of West and Central Africa
CITES
Convention on International Trade in Endangered Species; signed by 172 countries, bans the hunting, capturing, and selling of threatened or endangered species
CDB
Convention on Biological Diversity; legally commits participating governments to reversing the global decline of biodiversity and to equitably sharing the benefits of the world's resources
US. Endangered Species Act
designed to identify and protect endangered species in the US and abroad
National Marine Fisheries Service
responsible for identifying and listing endangered ocean species
USFWS
Us Fish and WIldlife Services; identifies and lists all other endangered and threatened species
National Wildlife refuge system
includes 547 refuges, safe areas for endangered species
gene/seed banks
preserve genetic info and endangered plant species by storing their seeds in refrigerated, low-humidity environments
botanical gardens/arbortea
contain living plants representing almost 1/3 of the world's known plant speices
egg pulling
collecting wild eggs laid by critically endangered birds and then hatching them in zoos or research centers
captive breeding
some or all of the individuals of a critically endangered species are captured for breeding in captivity
California Condor
north america's largest bird, only 22 remained in the wild and 135 have since been released back into the wild
precautionary principle
when substantial preliminary evidence indicates that an activity can harm human health or the environment, we should take precautionary measures to prevent such harm
THIS SET IS OFTEN IN FOLDERS WITH...